From andrew at openjdk.org  Sun Jun  1 20:10:26 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 20:10:26 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 18 new changesets
Message-ID: <d8971671-97f8-4858-84d7-5e781501aea2@openjdk.org>

Changeset: f3c87ce7
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-05-30 15:12:35 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f3c87ce70bcc8421ec40e393e9649dfac30d2336

8287521: Bump update version of OpenJDK: 8u352

Reviewed-by: sgehwolf

! .jcheck/conf
! common/autoconf/version-numbers

Changeset: 820ab134
Branch: master
Author:    Alexey Pavlyutkin <apavlyutkin at azul.com>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2022-05-31 06:21:10 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/820ab134927cb76c61cf9c144637d18e0e2a4f2c

8235385: Crash on aarch64 JDK due to long offset
8287508: The tests added to jdk-8 by 8235385 are to be ported to jdk-11

Co-authored-by: Wang Zhuo <wzhuo at openjdk.org>
Co-authored-by: Andrew Haley <aph at openjdk.org>
Reviewed-by: aph, andrew
Backport-of: 156c486e920b1ca406064dd189562b830990f7f9

! hotspot/src/cpu/aarch64/vm/aarch64.ad
! hotspot/src/cpu/aarch64/vm/ad_encode.m4
+ hotspot/test/compiler/8235385/NonVolatileMemoryAccessWithLongOffset.java

Changeset: 83e90957
Branch: master
Author:    Alex Kasko <akasko at openjdk.org>
Date:      2022-06-15 11:25:55 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/83e90957bef15267bed792ee5d8d65899a2487e8

8280963: Incorrect PrintFlags formatting on Windows

Reviewed-by: andrew

! hotspot/src/share/vm/runtime/globals.cpp
+ hotspot/test/runtime/CommandLine/PrintFlagsUintxTest.java

Changeset: cf6b6282
Branch: master
Author:    yibo.yl <yibo.yl at alibaba-inc.com>
Committer: Denghui Dong <ddong at openjdk.org>
Date:      2022-06-27 12:27:18 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/cf6b6282c4836e561e88a114a8d72db4180b160c

8260589: Crash in JfrTraceIdLoadBarrier::load(_jclass*)

Reviewed-by: zgu
Backport-of: a9d2267f8d306522522c999ff584ccaa34c46456

! hotspot/src/share/vm/jfr/recorder/checkpoint/types/jfrTypeSet.cpp
! hotspot/src/share/vm/jfr/recorder/checkpoint/types/traceid/jfrTraceId.cpp
! hotspot/src/share/vm/jfr/recorder/checkpoint/types/traceid/jfrTraceId.hpp
! hotspot/src/share/vm/jfr/support/jfrTraceIdExtension.hpp
! hotspot/src/share/vm/oops/typeArrayKlass.cpp
+ jdk/test/jdk/jfr/jvm/TestPrimitiveClasses.java

Changeset: 1b4f32d6
Branch: master
Author:    Dongbo He <dongbohe at openjdk.org>
Date:      2022-06-29 16:30:55 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1b4f32d61e3b0460c82598f24dbd5c4dd0fc3bbe

8173361: various crashes in JvmtiExport::post_compiled_method_load

Don't post information that uses metadata from unloaded nmethods

Reviewed-by: andrew, sspitsyn
Backport-of: b1d915ef80ebdf511dc2897b20ada78b3dc44241

! hotspot/src/share/vm/code/nmethod.cpp
! hotspot/src/share/vm/oops/instanceKlass.cpp
! hotspot/src/share/vm/prims/jvmtiExport.cpp
! hotspot/src/share/vm/prims/jvmtiImpl.cpp
! hotspot/src/share/vm/prims/jvmtiImpl.hpp
! hotspot/src/share/vm/runtime/serviceThread.cpp
! hotspot/src/share/vm/runtime/serviceThread.hpp
! hotspot/src/share/vm/runtime/thread.hpp

Changeset: a3c0ed26
Branch: master
Author:    Yuri Nesterenko <yan at openjdk.org>
Date:      2022-06-30 11:10:31 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/a3c0ed269c37879c4763f2a58b5d469b7797e3c3

8087283: Add support for the XML Signature here() function to the JDK XPath implementation

Reviewed-by: andrew
Backport-of: 22fad64529a890dd3ae8b07c7981d9a720cf8e96

! jaxp/src/com/sun/org/apache/xpath/internal/compiler/FunctionTable.java
! jaxp/src/com/sun/org/apache/xpath/internal/compiler/Keywords.java
+ jaxp/src/com/sun/org/apache/xpath/internal/functions/FuncHere.java
! jdk/src/share/classes/com/sun/org/apache/xml/internal/security/utils/XalanXPathAPI.java

Changeset: ce73401e
Branch: master
Author:    Takakuri <k.takakuri at fujitsu.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-07-07 11:40:35 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ce73401ef42bbe758aa1ed6e6b3412bf70ef63b4

8136354: [TEST_BUG] Test  java/awt/image/RescaleOp/RescaleAlphaTest.java with Bad action for script

Backport-of: da688f57c3822e0327ad717290bed88baa73bd17

! jdk/test/java/awt/image/RescaleOp/RescaleAlphaTest.java

Changeset: 6e8292f1
Branch: master
Author:    Jaroslav Bachorik <jbachorik at openjdk.org>
Date:      2022-07-08 14:29:12 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/6e8292f1d997aa160a9826967ee4467e93585bc7

8283849: AsyncGetCallTrace may crash JVM on guarantee

Reviewed-by: phh
Backport-of: 19639855311a47ed532547743ea3873eb8b016d3

! hotspot/src/share/vm/code/codeCache.cpp
! hotspot/src/share/vm/prims/forte.cpp
! hotspot/src/share/vm/runtime/thread.cpp
! hotspot/src/share/vm/runtime/thread.hpp

Changeset: eeef4de5
Branch: master
Author:    Dongbo He <dongbohe at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-07-08 17:58:19 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/eeef4de5dcf3bd9c5aff971ac9181c13c64a66f8

8150669: C1 intrinsic for Class.isPrimitive

Reviewed-by: phh
Backport-of: 890f94d7e6be731ac2ebae2f1ad3cc20ec836115

! hotspot/src/share/vm/c1/c1_Canonicalizer.cpp
! hotspot/src/share/vm/c1/c1_GraphBuilder.cpp
! hotspot/src/share/vm/c1/c1_LIRGenerator.cpp
! hotspot/src/share/vm/c1/c1_LIRGenerator.hpp
+ hotspot/test/compiler/intrinsics/klass/TestIsPrimitive.java

Changeset: e0051850
Branch: master
Author:    Dongbo He <dongbohe at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-07-10 15:19:42 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/e005185072cbf0b79b62bcfa7a37f9e1a2e03af2

8235218: Minimal VM is broken after JDK-8173361

Reviewed-by: sgehwolf, andrew
Backport-of: c10f731b11f314c97660df08c62f3c3d2f718f54

! hotspot/src/share/vm/prims/jvmtiImpl.hpp

Changeset: 972112ed
Branch: master
Author:    Dongbo He <dongbohe at openjdk.org>
Committer: Fei Yang <fyang at openjdk.org>
Date:      2022-07-11 02:49:54 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/972112ed520b8f5465ae15c47e6af2db92aa3a58

8233019: java.lang.Class.isPrimitive() (C1) returns wrong result if Klass* is aligned to 32bit

Reviewed-by: phh
Backport-of: b67ca938f37f952e53f73d2e0b8ebcaf96139fda

! hotspot/src/cpu/aarch64/vm/c1_LIRAssembler_aarch64.cpp
! hotspot/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp
! hotspot/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp
! hotspot/src/share/vm/c1/c1_LIRGenerator.cpp
! hotspot/test/compiler/intrinsics/klass/TestIsPrimitive.java

Changeset: 4f7dd0ca
Branch: master
Author:    Alexey Pavlyutkin <apavlyutkin at azul.com>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2022-07-11 06:25:29 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/4f7dd0ca1625e9b870174ee21f9423cb4ff7ae09

8256722: handle VC++:1927 VS2019 in  abstract_vm_version

Backport-of: 146fe86ff68095b5eb0ce1387061699738280c06

! hotspot/src/share/vm/runtime/vm_version.cpp

Changeset: 0de66bd8
Branch: master
Author:    Olga Mikhaltsova <omikhaltcova at openjdk.org>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2022-07-11 11:11:05 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0de66bd811c89d8648d3751f60fe46aaa2eb26fc

8282538: PKCS11 tests fail on CentOS Stream 9

Backport-of: d8fd22239bafecdaaedb8985ab6d709ed846e808

= jdk/test/sun/security/pkcs11/nss/db/cert9.db
= jdk/test/sun/security/pkcs11/nss/db/key4.db

Changeset: de9f1497
Branch: master
Author:    Olga Mikhaltsova <omikhaltcova at openjdk.org>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2022-07-11 11:11:50 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/de9f14976a285fcf1ea073c374582d6965e4f0dd

8194873: right ALT key hotkeys no longer work in Swing components
8155742: [Windows] robot.keyPress(KeyEvent.VK_ALT_GRAPH) throws java.lang.IllegalArgumentException in windows

Reviewed-by: alitvinov, yan, serb
Backport-of: 91f281c8d713e489ddc282f935ebd879485c4b41

! jdk/src/share/classes/com/sun/java/swing/plaf/motif/MotifLookAndFeel.java
! jdk/src/share/classes/javax/swing/plaf/basic/BasicButtonListener.java
! jdk/src/share/classes/javax/swing/plaf/basic/BasicLabelUI.java
! jdk/src/share/classes/javax/swing/plaf/basic/BasicLookAndFeel.java
! jdk/src/share/classes/javax/swing/plaf/basic/BasicMenuItemUI.java
! jdk/src/share/classes/javax/swing/plaf/basic/BasicMenuUI.java
! jdk/src/share/classes/javax/swing/plaf/basic/BasicTabbedPaneUI.java
! jdk/src/share/classes/javax/swing/plaf/basic/BasicTextUI.java
! jdk/src/share/classes/sun/swing/SwingUtilities2.java
! jdk/src/windows/native/sun/windows/awt_Component.cpp
! jdk/src/windows/native/sun/windows/awt_Robot.cpp
! jdk/test/java/awt/Robot/ModifierRobotKey/ModifierRobotKeyTest.java
! jdk/test/java/awt/event/MouseEvent/AltGraphModifierTest/AltGraphModifierTest.java
+ jdk/test/javax/swing/event/RightAltKeyTest.java

Changeset: 40a18594
Branch: master
Author:    Takakuri <k.takakuri at fujitsu.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-07-12 12:03:17 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/40a18594ba21d7a345ff82792fc361f7e691e669

8130895: Test javax/swing/system/6799345/TestShutdown.java fails on Solaris11 Sparcv9

Backport-of: 4140fd05a447c888856c54aee22c475173030833

! jdk/src/share/classes/java/awt/KeyboardFocusManager.java
! jdk/src/share/classes/sun/awt/KeyboardFocusManagerPeerImpl.java

Changeset: f7f6d9d0
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-07-21 02:31:56 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f7f6d9d07fa3f166fe0155f80c61730c1c788ac5

Merge


Changeset: 1460bfaf
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-08-01 20:16:17 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1460bfaf8a3be7c4772bfbb75b8a3a31560a2c2c

Merge


Changeset: 86c4e6f6
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-01 20:39:52 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/86c4e6f64d93e7eda29b0e15a48041cc5c4d4c66

Merge jdk8u352-b01

Added tag jdk8u352-b01 for changeset 1460bfaf8a3

! .jcheck/conf
! hotspot/src/cpu/aarch64/vm/aarch64.ad
! hotspot/src/cpu/aarch64/vm/c1_LIRAssembler_aarch64.cpp
! hotspot/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp
! hotspot/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp
! hotspot/src/share/vm/c1/c1_LIRGenerator.cpp
! hotspot/src/share/vm/c1/c1_LIRGenerator.hpp
! hotspot/src/share/vm/code/codeCache.cpp
! hotspot/src/share/vm/code/nmethod.cpp
! hotspot/src/share/vm/oops/instanceKlass.cpp
! hotspot/src/share/vm/runtime/globals.cpp
! hotspot/src/share/vm/runtime/thread.cpp
! hotspot/src/share/vm/runtime/thread.hpp
! .jcheck/conf
! hotspot/src/cpu/aarch64/vm/aarch64.ad
! hotspot/src/cpu/aarch64/vm/c1_LIRAssembler_aarch64.cpp
! hotspot/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp
! hotspot/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp
! hotspot/src/share/vm/c1/c1_LIRGenerator.cpp
! hotspot/src/share/vm/c1/c1_LIRGenerator.hpp
! hotspot/src/share/vm/code/codeCache.cpp
! hotspot/src/share/vm/code/nmethod.cpp
! hotspot/src/share/vm/oops/instanceKlass.cpp
! hotspot/src/share/vm/runtime/globals.cpp
! hotspot/src/share/vm/runtime/thread.cpp
! hotspot/src/share/vm/runtime/thread.hpp


From andrew at openjdk.org  Sun Jun  1 20:10:40 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 20:10:40 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u352-b01 for changeset
 1460bfaf
Message-ID: <eb490307-7f25-42bf-b464-a549fe76f7f2@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-08-04 02:19:03 +0000

Added tag jdk8u352-b01 for changeset 1460bfaf8a3
Changeset: 1460bfaf
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-08-01 20:16:17 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1460bfaf8a3be7c4772bfbb75b8a3a31560a2c2c


From andrew at openjdk.org  Sun Jun  1 21:18:00 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 21:18:00 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <rfqhZyBTElCUH54YDIVuiZiH9XmRg13a7mEkLncWUOk=.bf2f0df9-786d-4f4c-8395-c2b7e7581ff0@github.com>

Merge jdk8u352-b02

-------------

Commit messages:
 - Merge jdk8u352-b02
 - 8287132: Retire Runtime.runFinalizersOnExit so that it always throws UOE
 - 8288865: [aarch64] LDR instructions must use legitimized addresses
 - 8290000: Bump macOS GitHub actions to macOS 11

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=24&range=00.0
 - jdk8u:master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=24&range=00.1

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/24/files
  Stats: 770 lines in 29 files changed: 247 ins; 367 del; 156 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/24.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/24/head:pull/24

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/24

From andrew at openjdk.org  Sun Jun  1 21:29:07 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 21:29:07 GMT
Subject: RFR: Merge jdk8u:master
In-Reply-To: <rfqhZyBTElCUH54YDIVuiZiH9XmRg13a7mEkLncWUOk=.bf2f0df9-786d-4f4c-8395-c2b7e7581ff0@github.com>
References: <rfqhZyBTElCUH54YDIVuiZiH9XmRg13a7mEkLncWUOk=.bf2f0df9-786d-4f4c-8395-c2b7e7581ff0@github.com>
Message-ID: <n9ehpFBh39V3WpLOP-hTA-uUWUS49xFlIBMSXfXqfQs=.83c2a461-9d8c-4a1c-9355-a557290666e1@github.com>

On Sun, 1 Jun 2025 21:13:09 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u352-b02

GHA builds will not work until [JDK-8284622](https://bugs.openjdk.org/browse/JDK-8284622) is merged in 8u362-b03

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk8u/pull/24#issuecomment-2927921609

From andrew at openjdk.org  Sun Jun  1 21:46:42 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 21:46:42 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 4 new changesets
Message-ID: <4857874b-bcd8-498f-9bff-c63ab369708a@openjdk.org>

Changeset: 39fa6fb1
Branch: master
Author:    George Adams <georgeadams1995 at gmail.com>
Committer: Christoph Langer <clanger at openjdk.org>
Date:      2022-08-04 07:11:16 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/39fa6fb17215d823aacad51669750b76c987973d

8290000: Bump macOS GitHub actions to macOS 11

Reviewed-by: sgehwolf
Backport-of: 4e6cd67fec3d978f4c8c1aed95a1d09b544eff68

! .github/workflows/submit.yml

Changeset: deae94f8
Branch: master
Author:    Alexey Pavlyutkin <apavlyutkin at azul.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-08-04 13:40:41 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/deae94f8e3805cf806967d7b320c20d87c0ffab0

8288865: [aarch64] LDR instructions must use legitimized addresses

Reviewed-by: adinn
Backport-of: 1f4028960a3934853104efd1d95991b137b5f520

! hotspot/src/cpu/aarch64/vm/aarch64.ad
! hotspot/src/cpu/aarch64/vm/ad_encode.m4
! hotspot/test/compiler/8235385/NonVolatileMemoryAccessWithLongOffset.java

Changeset: b52eb70f
Branch: master
Author:    David Holmes <dholmes at openjdk.org>
Date:      2022-08-05 21:04:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/b52eb70faf9f4e2646400c9565af67e6916c5ac9

8287132: Retire Runtime.runFinalizersOnExit so that it always throws UOE

Reviewed-by: hseigel, iris, andrew
Backport-of: 0d4cfc090c651786535529acfe5acb0209cb1d3d

! hotspot/make/aix/makefiles/mapfile-vers-debug
! hotspot/make/aix/makefiles/mapfile-vers-product
! hotspot/make/bsd/makefiles/mapfile-vers-debug
! hotspot/make/bsd/makefiles/mapfile-vers-product
! hotspot/make/linux/makefiles/mapfile-vers-debug
! hotspot/make/linux/makefiles/mapfile-vers-product
! hotspot/make/solaris/makefiles/mapfile-vers
! hotspot/src/share/vm/classfile/vmSymbols.hpp
! hotspot/src/share/vm/memory/universe.cpp
! hotspot/src/share/vm/memory/universe.hpp
! hotspot/src/share/vm/prims/jvm.cpp
! hotspot/src/share/vm/prims/jvm.h
! hotspot/src/share/vm/runtime/java.hpp
! hotspot/src/share/vm/runtime/thread.cpp
! jdk/make/mapfiles/libjava/mapfile-vers
! jdk/src/share/classes/java/lang/Runtime.java
! jdk/src/share/classes/java/lang/Shutdown.java
! jdk/src/share/classes/java/lang/System.java
! jdk/src/share/classes/java/lang/ref/Finalizer.java
! jdk/src/share/javavm/export/jvm.h
! jdk/src/share/native/java/lang/Shutdown.c
- jdk/test/java/lang/System/ExitFinalizersAndJIT.java
- jdk/test/java/lang/System/finalization/FinExit.java
- jdk/test/java/lang/System/finalization/FinExit.sh
+ jdk/test/java/lang/System/finalization/RunFinalizersOnExit.java

Changeset: 84d7ca88
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-01 21:07:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/84d7ca884f12de35471c17430b192b30c6db7e77

Merge jdk8u352-b02

Added tag jdk8u352-b02 for changeset b52eb70faf9

! hotspot/src/cpu/aarch64/vm/aarch64.ad
! hotspot/src/share/vm/memory/universe.cpp
! hotspot/src/share/vm/prims/jvm.cpp
! hotspot/src/share/vm/runtime/thread.cpp
! hotspot/src/cpu/aarch64/vm/aarch64.ad
! hotspot/src/share/vm/memory/universe.cpp
! hotspot/src/share/vm/prims/jvm.cpp
! hotspot/src/share/vm/runtime/thread.cpp


From andrew at openjdk.org  Sun Jun  1 21:46:59 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 21:46:59 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u352-b01 for
 changeset 86c4e6f6
Message-ID: <04351092-a389-43a0-8305-5725038c6a3c@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-01 21:07:14 +0000

Added tag shenandoah8u352-b01 for changeset 86c4e6f64d9
Changeset: 86c4e6f6
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-01 20:39:52 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/86c4e6f64d93e7eda29b0e15a48041cc5c4d4c66


From andrew at openjdk.org  Sun Jun  1 21:47:02 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 21:47:02 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u352-b02 for changeset
 b52eb70f
Message-ID: <1ea80f54-ef23-4a7a-8a9a-071fdb60cd35@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-08-11 04:10:47 +0000

Added tag jdk8u352-b02 for changeset b52eb70faf9
Changeset: b52eb70f
Author:    David Holmes <dholmes at openjdk.org>
Date:      2022-08-05 21:04:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/b52eb70faf9f4e2646400c9565af67e6916c5ac9


From andrew at openjdk.org  Sun Jun  1 21:47:08 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 21:47:08 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u352-b02 for
 changeset 84d7ca88
Message-ID: <6508a580-60c6-48a5-8fc1-b8e31ddacc4f@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-01 22:11:45 +0000

Added tag shenandoah8u352-b02 for changeset 84d7ca884f1
Changeset: 84d7ca88
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-01 21:07:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/84d7ca884f12de35471c17430b192b30c6db7e77


From andrew at openjdk.org  Sun Jun  1 21:48:51 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 21:48:51 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <rfqhZyBTElCUH54YDIVuiZiH9XmRg13a7mEkLncWUOk=.bf2f0df9-786d-4f4c-8395-c2b7e7581ff0@github.com>
References: <rfqhZyBTElCUH54YDIVuiZiH9XmRg13a7mEkLncWUOk=.bf2f0df9-786d-4f4c-8395-c2b7e7581ff0@github.com>
Message-ID: <GJCmHqSCZz5olj6ASs-VFZ4fr4ufNi02hSjSY5-QHWs=.1dd563de-0246-4846-a37d-52e4ed882e5d@github.com>

> Merge jdk8u352-b02

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/24/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/24/files/84d7ca88..84d7ca88

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=24&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=24&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/24.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/24/head:pull/24

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/24

From iris at openjdk.org  Sun Jun  1 21:48:51 2025
From: iris at openjdk.org (Iris Clark)
Date: Sun, 1 Jun 2025 21:48:51 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <rfqhZyBTElCUH54YDIVuiZiH9XmRg13a7mEkLncWUOk=.bf2f0df9-786d-4f4c-8395-c2b7e7581ff0@github.com>
References: <rfqhZyBTElCUH54YDIVuiZiH9XmRg13a7mEkLncWUOk=.bf2f0df9-786d-4f4c-8395-c2b7e7581ff0@github.com>
Message-ID: <Ne_XdeOpDmQDiFzp2PGghcF7H7v971MKRSkbz05Z4e8=.edf5e21e-4909-45d6-9012-04bc65875d9e@github.com>

On Sun, 1 Jun 2025 21:13:09 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u352-b02

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/24

From andrew at openjdk.org  Sun Jun  1 22:49:32 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 22:49:32 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <DzC-TIfypAL_A7GGi79AbBAnYauCT8P7zyKu3m7JjHc=.d07cd8cc-366c-45c6-a10a-b817bb69c428@github.com>

Merge jdk8u352-b03

-------------

Commit messages:
 - Merge jdk8u352-b03
 - 8071507: (ref) Clear phantom reference as soft and weak references do

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=25&range=00.0
 - jdk8u:master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=25&range=00.1

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/25/files
  Stats: 173 lines in 10 files changed: 105 ins; 48 del; 20 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/25.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/25/head:pull/25

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/25

From andrew at openjdk.org  Sun Jun  1 22:51:16 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 22:51:16 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 2 new changesets
Message-ID: <3c947aff-7525-4b63-9f79-60e5e0087075@openjdk.org>

Changeset: 0869fc01
Branch: master
Author:    Poonam Bajaj <poonam at openjdk.org>
Date:      2022-08-11 13:56:53 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0869fc0153bde09c41ad37c3c46f715e23b41966

8071507: (ref) Clear phantom reference as soft and weak references do
8143847: Remove REF_CLEANER reference category

Reviewed-by: iris, dholmes, mchung, andrew
Backport-of: ad6cdea5ae385623afa86251a8278c9c5274f4c1

! hotspot/src/share/vm/classfile/systemDictionary.cpp
! hotspot/src/share/vm/classfile/systemDictionary.hpp
! hotspot/src/share/vm/classfile/vmSymbols.hpp
! hotspot/src/share/vm/memory/referenceProcessor.cpp
! hotspot/src/share/vm/memory/referenceProcessor.hpp
! hotspot/src/share/vm/memory/referenceType.hpp
! hotspot/src/share/vm/runtime/vmStructs.cpp
! jdk/src/share/classes/java/lang/ref/PhantomReference.java
! jdk/src/share/classes/java/lang/ref/package.html
+ jdk/test/java/lang/ref/PhantomReferentClearing.java

Changeset: 98bd5e30
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-01 23:16:44 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/98bd5e301fa3c205734e00b19a8461086a3399ff

Merge jdk8u352-b03

Added tag jdk8u352-b03 for changeset HEAD^

! hotspot/src/share/vm/memory/referenceProcessor.cpp
! hotspot/src/share/vm/memory/referenceProcessor.hpp
! hotspot/src/share/vm/runtime/vmStructs.cpp
! hotspot/src/share/vm/memory/referenceProcessor.cpp
! hotspot/src/share/vm/memory/referenceProcessor.hpp
! hotspot/src/share/vm/runtime/vmStructs.cpp


From andrew at openjdk.org  Sun Jun  1 22:51:25 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 22:51:25 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u352-b03 for changeset
 0869fc01
Message-ID: <f4fcf520-0e9f-4a69-86d7-5293ae2d5b1d@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-08-17 17:07:29 +0000

Added tag jdk8u352-b03 for changeset HEAD^
Changeset: 0869fc01
Author:    Poonam Bajaj <poonam at openjdk.org>
Date:      2022-08-11 13:56:53 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0869fc0153bde09c41ad37c3c46f715e23b41966


From andrew at openjdk.org  Sun Jun  1 22:51:28 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 22:51:28 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u352-b03 for
 changeset 98bd5e30
Message-ID: <97471943-0de6-4d5e-ba69-7575d0d13f61@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-01 23:36:30 +0000

Added tag shenandoah8u352-b03 for changeset 98bd5e301fa
Changeset: 98bd5e30
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-01 23:16:44 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/98bd5e301fa3c205734e00b19a8461086a3399ff


From andrew at openjdk.org  Sun Jun  1 22:52:31 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 22:52:31 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <DzC-TIfypAL_A7GGi79AbBAnYauCT8P7zyKu3m7JjHc=.d07cd8cc-366c-45c6-a10a-b817bb69c428@github.com>
References: <DzC-TIfypAL_A7GGi79AbBAnYauCT8P7zyKu3m7JjHc=.d07cd8cc-366c-45c6-a10a-b817bb69c428@github.com>
Message-ID: <R_ofwG3IbubEzWfpYVuoTUeAJKJviKPZxE-AfzG0rug=.fcd86db8-00af-4afe-8488-52f6db13743a@github.com>

> Merge jdk8u352-b03

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/25/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/25/files/98bd5e30..98bd5e30

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=25&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=25&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/25.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/25/head:pull/25

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/25

From andrew at openjdk.org  Sun Jun  1 22:52:31 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 22:52:31 GMT
Subject: RFR: Merge jdk8u:master
In-Reply-To: <DzC-TIfypAL_A7GGi79AbBAnYauCT8P7zyKu3m7JjHc=.d07cd8cc-366c-45c6-a10a-b817bb69c428@github.com>
References: <DzC-TIfypAL_A7GGi79AbBAnYauCT8P7zyKu3m7JjHc=.d07cd8cc-366c-45c6-a10a-b817bb69c428@github.com>
Message-ID: <Utl0RhGSkX31omP-AUNHG8ZsUmdSfATiQhKRZfoRht8=.a838ba5b-c353-4d32-a1c0-0e6d65aacd83@github.com>

On Sun, 1 Jun 2025 22:45:14 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u352-b03

GHA builds will not work until [JDK-8284622](https://bugs.openjdk.org/browse/JDK-8284622) is merged in 8u362-b03

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk8u/pull/25#issuecomment-2928049775

From iris at openjdk.org  Sun Jun  1 22:52:31 2025
From: iris at openjdk.org (Iris Clark)
Date: Sun, 1 Jun 2025 22:52:31 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <DzC-TIfypAL_A7GGi79AbBAnYauCT8P7zyKu3m7JjHc=.d07cd8cc-366c-45c6-a10a-b817bb69c428@github.com>
References: <DzC-TIfypAL_A7GGi79AbBAnYauCT8P7zyKu3m7JjHc=.d07cd8cc-366c-45c6-a10a-b817bb69c428@github.com>
Message-ID: <IB7ofUMi_ToLSrNRlrcRUTFhptsSz7Oob4-QDit6dhc=.b7672758-459a-40ea-9a1d-accdd774df9b@github.com>

On Sun, 1 Jun 2025 22:45:14 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u352-b03

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/25

From andrew at openjdk.org  Sun Jun  1 23:40:11 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 23:40:11 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <e8sahwUStf0UlOZlLJ7oGCHTHQAiJciIBs49rmCLdvw=.338e7dde-5434-4555-afa0-760b4ecaa25a@github.com>

Merge jdk8u352-b04

-------------

Commit messages:
 - Merge jdk8u352-b04
 - 8214427: probable bug in logic of ConcurrentHashMap.addCount()
 - 8288763: Pack200 extraction failure with invalid size
 - 8245263: Enable TLSv1.3 by default on JDK 8u for Client roles

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/26/files
  Stats: 41 lines in 17 files changed: 5 ins; 3 del; 33 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/26.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/26/head:pull/26

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/26

From andrew at openjdk.org  Sun Jun  1 23:40:12 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 23:40:12 GMT
Subject: RFR: Merge jdk8u:master
In-Reply-To: <e8sahwUStf0UlOZlLJ7oGCHTHQAiJciIBs49rmCLdvw=.338e7dde-5434-4555-afa0-760b4ecaa25a@github.com>
References: <e8sahwUStf0UlOZlLJ7oGCHTHQAiJciIBs49rmCLdvw=.338e7dde-5434-4555-afa0-760b4ecaa25a@github.com>
Message-ID: <-UU8Bezt2kN_kJFOqZMOHp-xsjW9jxWiPydBlbRkQ08=.d7689167-bded-4ebb-b46e-405f430f317e@github.com>

On Sun, 1 Jun 2025 23:35:10 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u352-b04

GHA builds will not work until [JDK-8284622](https://bugs.openjdk.org/browse/JDK-8284622) is merged in 8u362-b03

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk8u/pull/26#issuecomment-2928120933

From andrew at openjdk.org  Sun Jun  1 23:41:40 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 23:41:40 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 4 new changesets
Message-ID: <fdf1b18c-09fd-4ae9-90d1-8973cea183de@openjdk.org>

Changeset: 8e2c4984
Branch: master
Author:    Alexey Bakhtin <abakhtin at openjdk.org>
Date:      2022-08-16 18:47:09 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/8e2c498478231661a10f88854ce8afe26f0c0cd0

8245263: Enable TLSv1.3 by default on JDK 8u for Client roles

Reviewed-by: mbalao

! jdk/src/share/classes/sun/security/ssl/SSLContextImpl.java
! jdk/test/javax/net/ssl/SSLSession/ResumeTLS13withSNI.java
! jdk/test/javax/net/ssl/SSLSocket/Tls13PacketSize.java
! jdk/test/javax/net/ssl/Stapling/HttpsUrlConnClient.java
! jdk/test/javax/net/ssl/Stapling/SSLEngineWithStapling.java
! jdk/test/javax/net/ssl/Stapling/SSLSocketWithStapling.java
! jdk/test/javax/net/ssl/Stapling/StapleEnableProps.java
! jdk/test/javax/net/ssl/TLS/TLSClientPropertyTest.java
! jdk/test/javax/net/ssl/sanity/ciphersuites/CheckCipherSuites.java
! jdk/test/sun/security/ssl/HandshakeHash/HandshakeHashCloneExhaustion.java
! jdk/test/sun/security/ssl/SSLContextImpl/CustomizedServerDefaultProtocols.java
! jdk/test/sun/security/ssl/SSLContextImpl/DefaultEnabledProtocols.java
! jdk/test/sun/security/ssl/SSLSessionImpl/ResumeChecksClient.java
! jdk/test/sun/security/ssl/SSLSessionImpl/ResumeChecksServer.java
! jdk/test/sun/security/ssl/X509TrustManagerImpl/TooManyCAs.java

Changeset: 645b6c81
Branch: master
Author:    Tyler Steele <tsteele at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-08-17 19:48:31 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/645b6c81bc9230ce5808fc4bd70240fc1311cdd4

8288763: Pack200 extraction failure with invalid size

Reviewed-by: phh
Backport-of: 5e1ce54d6a11eac153a6e6487bc0b4ed89741b5b

! jdk/src/share/classes/com/sun/java/util/jar/pack/Utils.java

Changeset: 4cc462ab
Branch: master
Author:    Poison <tianshuang.me at gmail.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-08-20 11:31:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/4cc462abdd39f24e7f09b13f64af74bc2f1318d2

8214427: probable bug in logic of ConcurrentHashMap.addCount()

Reviewed-by: phh, andrew
Backport-of: 8846159987f902bb6e2b966eb4656da4b6d9469d

! jdk/src/share/classes/java/util/concurrent/ConcurrentHashMap.java

Changeset: 0562578d
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-01 23:49:46 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0562578d232e635431886990cdedc07545bb55a9

Merge jdk8u352-b04

Added tag jdk8u352-b04 for changeset 4cc462abdd39f24e7f09b13f64af74bc2f1318d2



From andrew at openjdk.org  Sun Jun  1 23:41:50 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 23:41:50 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u352-b04 for changeset
 4cc462ab
Message-ID: <30c4bea4-7e38-4127-9f58-ded49ebf898a@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-08-26 14:40:43 +0000

Added tag jdk8u352-b04 for changeset 4cc462abdd39f24e7f09b13f64af74bc2f1318d2
Changeset: 4cc462ab
Author:    Poison <tianshuang.me at gmail.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-08-20 11:31:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/4cc462abdd39f24e7f09b13f64af74bc2f1318d2


From andrew at openjdk.org  Sun Jun  1 23:41:53 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 23:41:53 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u352-b04 for
 changeset 0562578d
Message-ID: <b2b4922f-5c5d-4776-b2de-adc6604afb52@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-02 00:24:22 +0000

Added tag shenandoah8u352-b04 for changeset 0562578d232
Changeset: 0562578d
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-01 23:49:46 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0562578d232e635431886990cdedc07545bb55a9


From andrew at openjdk.org  Sun Jun  1 23:43:44 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sun, 1 Jun 2025 23:43:44 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <e8sahwUStf0UlOZlLJ7oGCHTHQAiJciIBs49rmCLdvw=.338e7dde-5434-4555-afa0-760b4ecaa25a@github.com>
References: <e8sahwUStf0UlOZlLJ7oGCHTHQAiJciIBs49rmCLdvw=.338e7dde-5434-4555-afa0-760b4ecaa25a@github.com>
Message-ID: <32xuyFiBlJNm_aGN00LXJmylM0W5vQSpaN1fS2sivYA=.9a6dcfe9-7aa5-4718-b591-10a4cf4776ef@github.com>

> Merge jdk8u352-b04

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/26/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/26/files/0562578d..0562578d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=26&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=26&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/26.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/26/head:pull/26

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/26

From iris at openjdk.org  Sun Jun  1 23:43:45 2025
From: iris at openjdk.org (Iris Clark)
Date: Sun, 1 Jun 2025 23:43:45 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <e8sahwUStf0UlOZlLJ7oGCHTHQAiJciIBs49rmCLdvw=.338e7dde-5434-4555-afa0-760b4ecaa25a@github.com>
References: <e8sahwUStf0UlOZlLJ7oGCHTHQAiJciIBs49rmCLdvw=.338e7dde-5434-4555-afa0-760b4ecaa25a@github.com>
Message-ID: <Dzsytp-G2Ut2zv5XaJn0ZA30bl0ApIr21ko1JbDWaiU=.51f86613-b029-4e8c-b62a-4a492ed117f9@github.com>

On Sun, 1 Jun 2025 23:35:10 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u352-b04

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/26

From andrew at openjdk.org  Mon Jun  2 00:13:16 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 2 Jun 2025 00:13:16 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <V9U5ZafjgkFbuRSILo7CBgVo4M9C1B5glEkRXpWG5uc=.317f84df-de52-48fc-adb3-3a73845d663b@github.com>

Merge jdk8u352-b05

-------------

Commit messages:
 - Merge jdk8u352-b05
 - 8292688: Support Security properties in security.testlibrary.Proc
 - 7131823: bug in GIFImageReader
 - 8139668: Generate README-build.html from markdown
 - 8173339: AArch64: Fix minimum stack size computations
 - 8049228: Improve multithreaded scalability of InetAddress cache
 - 8285497: Add system property for Java SE specification maintenance version
 - 8232950: SUNPKCS11 Provider incorrectly check key length for PSS Signatures.
 - 8039955: [TESTBUG] jdk/lambda/LambdaTranslationTest1 - java.lang.AssertionError: expected [d:1234.000000] but found [d:1234,000000]
 - 8254318: Remove .hgtags
 - ... and 5 more: https://git.openjdk.org/shenandoah-jdk8u/compare/0562578d...81d58f87

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/27/files
  Stats: 15497 lines in 53 files changed: 2258 ins; 12004 del; 1235 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/27.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/27/head:pull/27

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/27

From andrew at openjdk.org  Mon Jun  2 00:20:45 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 2 Jun 2025 00:20:45 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <V9U5ZafjgkFbuRSILo7CBgVo4M9C1B5glEkRXpWG5uc=.317f84df-de52-48fc-adb3-3a73845d663b@github.com>
References: <V9U5ZafjgkFbuRSILo7CBgVo4M9C1B5glEkRXpWG5uc=.317f84df-de52-48fc-adb3-3a73845d663b@github.com>
Message-ID: <KQo1PcbwDxDoIBs84NFA0toJqk3m7min6muCKg3dgEY=.d11c2c4b-3a33-41e8-be24-5a3e2feda26e@github.com>

> Merge jdk8u352-b05

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/27/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/27/files/81d58f87..81d58f87

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=27&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=27&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/27.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/27/head:pull/27

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/27

From iris at openjdk.org  Mon Jun  2 00:20:46 2025
From: iris at openjdk.org (Iris Clark)
Date: Mon, 2 Jun 2025 00:20:46 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <V9U5ZafjgkFbuRSILo7CBgVo4M9C1B5glEkRXpWG5uc=.317f84df-de52-48fc-adb3-3a73845d663b@github.com>
References: <V9U5ZafjgkFbuRSILo7CBgVo4M9C1B5glEkRXpWG5uc=.317f84df-de52-48fc-adb3-3a73845d663b@github.com>
Message-ID: <A_l57QXWagpC1WhYuR21OaZAWW7YtbpxDaQd53-KkFk=.9ebcf272-d120-4e47-8a23-532ebc5f6efb@github.com>

On Mon, 2 Jun 2025 00:09:17 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u352-b05

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/27

From andrew at openjdk.org  Mon Jun  2 00:21:16 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 2 Jun 2025 00:21:16 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 15 new changesets
Message-ID: <afe9d237-d7bb-4974-aabf-8cfb5eada672@openjdk.org>

Changeset: 5323ef6c
Branch: master
Author:    George Adams <georgeadams1995 at gmail.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-08-22 12:40:02 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/5323ef6ca1bbf0a6e333565f97526fc5494081dc

8254178: Remove .hgignore

Reviewed-by: phh, andrew
Backport-of: 736e077335ec53c3804537a6abefa79087efd3ad

- .hgignore
- corba/.hgignore
- hotspot/.hgignore
- jaxp/.hgignore
- jaxws/.hgignore
- jdk/.hgignore
- langtools/.hgignore
- nashorn/.hgignore

Changeset: e633df1b
Branch: master
Author:    Poonam Bajaj <poonam at openjdk.org>
Date:      2022-08-22 13:45:13 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/e633df1b629c4045e792623dbbb36b1b263f3683

8175797: (ref) Reference::enqueue method should clear the reference object before enqueuing
8178832: (ref) jdk.lang.ref.disableClearBeforeEnqueue property is ignored
8193780: (ref) Remove the undocumented "jdk.lang.ref.disableClearBeforeEnqueue" system property

Reviewed-by: mchung, dholmes, iris, andrew
Backport-of: 330d63d2f9e18ba069e11868d4381059c66f480f

! jdk/src/share/classes/java/lang/ref/FinalReference.java
! jdk/src/share/classes/java/lang/ref/Reference.java
! jdk/test/java/lang/ref/ReferenceEnqueue.java

Changeset: 1b52b014
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-08-22 16:10:35 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1b52b014b6150efd480810d6561414c782c1f8c7

8183107: PKCS11 regression regarding checkKeySize

Changed key size check in PKCS11 provider to only enforce positive return values

Reviewed-by: phh, andrew
Backport-of: 67ca52873f088a08705baeef3e66319de1600576

! jdk/src/share/classes/sun/security/pkcs11/P11KeyGenerator.java
! jdk/src/share/classes/sun/security/pkcs11/P11KeyPairGenerator.java
! jdk/src/share/classes/sun/security/pkcs11/P11Signature.java
! jdk/src/share/classes/sun/security/pkcs11/wrapper/CK_MECHANISM_INFO.java

Changeset: 3a5b2cdc
Branch: master
Author:    Poonam Bajaj <poonam at openjdk.org>
Date:      2022-08-22 19:53:40 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3a5b2cdc101f501fb7681d6c1ce20f68db08f004

8201793: (ref) Reference object should not support cloning

Reviewed-by: mchung, iris, andrew
Backport-of: 58ec25de2f383144417eb000efacecb78b30395c

! jdk/src/share/classes/java/lang/ref/Reference.java
+ jdk/test/java/lang/ref/ReferenceClone.java

Changeset: 8ad9018e
Branch: master
Author:    Poonam Bajaj <poonam at openjdk.org>
Date:      2022-08-22 20:06:41 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/8ad9018e42916b683e163c1c7629a9ba9962aed4

8285400: Add '@apiNote' to the APIs defined in Java SE 8 MR 3

Reviewed-by: mchung, iris, andrew
Backport-of: 3740d05c063e1f80a0808a969a2cc136cafa48cb

! jdk/src/share/classes/java/security/Signature.java
! jdk/src/share/classes/java/security/interfaces/RSAKey.java
! jdk/src/share/classes/java/security/spec/MGF1ParameterSpec.java
! jdk/src/share/classes/java/security/spec/PSSParameterSpec.java
! jdk/src/share/classes/java/security/spec/RSAKeyGenParameterSpec.java
! jdk/src/share/classes/java/security/spec/RSAMultiPrimePrivateCrtKeySpec.java
! jdk/src/share/classes/java/security/spec/RSAPrivateCrtKeySpec.java
! jdk/src/share/classes/java/security/spec/RSAPrivateKeySpec.java
! jdk/src/share/classes/java/security/spec/RSAPublicKeySpec.java
! jdk/src/share/classes/javax/net/ssl/SSLEngine.java
! jdk/src/share/classes/javax/net/ssl/SSLParameters.java
! jdk/src/share/classes/javax/net/ssl/SSLSocket.java

Changeset: a4d49735
Branch: master
Author:    George Adams <georgeadams1995 at gmail.com>
Committer: Christoph Langer <clanger at openjdk.org>
Date:      2022-08-24 08:01:12 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/a4d497350218b38070164a71acc7502110567547

8254318: Remove .hgtags

Reviewed-by: andrew
Backport-of: 62a7f5d3236ab2248518a475b1d8b71cb4bf1313

- .hgtags
- .hgtags-top-repo
- corba/.hgtags
- hotspot/.hgtags
- jaxp/.hgtags
- jaxws/.hgtags
- jdk/.hgtags
- langtools/.hgtags
- nashorn/.hgtags

Changeset: 41c7d2d7
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-08-24 17:33:44 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/41c7d2d74d328f1b75a8271fbdc834679edbbae6

8039955: [TESTBUG] jdk/lambda/LambdaTranslationTest1 - java.lang.AssertionError: expected [d:1234.000000] but found [d:1234,000000]

Backport-of: 3555038f51fbf7f908b7346a8329f4da44a7cde5

! jdk/test/jdk/lambda/LambdaTranslationTest1.java
! jdk/test/jdk/lambda/LambdaTranslationTest2.java

Changeset: e3251a22
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-08-24 17:44:49 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/e3251a2293f2eeb286e3075269b1d132acae22bf

8232950: SUNPKCS11 Provider incorrectly check key length for PSS Signatures.

Fixed to treat the queried key size values as bits instead of bytes

Reviewed-by: andrew
Backport-of: f14e3a60b26f0488da26abf3ae6c0521d5f616e5

! jdk/src/share/classes/sun/security/pkcs11/P11PSSSignature.java

Changeset: d0ad2422
Branch: master
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2022-08-24 19:35:29 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d0ad2422d172bc436dad619adf78ce51285c2388

8285497: Add system property for Java SE specification maintenance version

Reviewed-by: dholmes, iris, mchung, andrew
Backport-of: 31a63ba5f255e09349b3842984ac5bb3ad8e6c0b

! jdk/src/share/classes/java/lang/System.java
! jdk/src/share/classes/sun/security/provider/PolicyFile.java
! jdk/src/share/lib/security/java.policy
! jdk/src/share/native/java/lang/System.c

Changeset: 22230588
Branch: master
Author:    Peter Levart <plevart at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-08-26 12:25:37 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/222305888bda3f0e225839d832cdf8983996a229

8049228: Improve multithreaded scalability of InetAddress cache
7186258: InetAddress$Cache should replace currentTimeMillis with nanoTime for more precise and accurate

Reviewed-by: andrew, phh
Backport-of: 250fbb065a789a303d692d698c9b69117bf6cd2c

! jdk/src/share/classes/java/net/InetAddress.java
! jdk/src/share/classes/sun/net/InetAddressCachePolicy.java

Changeset: de32daa3
Branch: master
Author:    Dongbo He <dongbohe at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-08-26 14:26:06 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/de32daa3efba67db204e86c8ed4380603432b3c6

8173339: AArch64: Fix minimum stack size computations

Reviewed-by: aph
Backport-of: 540ec375c30e973ceb1a944d5cc60cc8532e88ec

! hotspot/src/cpu/aarch64/vm/globals_aarch64.hpp

Changeset: d102764b
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-08-26 15:22:50 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d102764ba4675280113f2dd96908ed13ee5a37a8

8139668: Generate README-build.html from markdown

Reviewed-by: phh
Backport-of: 17c896827dbf1a54ab6539cc2b506f973dbde246

! README-builds.html
+ README-builds.md
+ common/bin/update-build-readme.sh

Changeset: 026a6c58
Branch: master
Author:    Dan Lutker <lutkerd at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-08-26 17:41:08 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/026a6c58afe2ff4ec851c5ea4905c68c87b4d7c0

7131823: bug in GIFImageReader

Reviewed-by: phh
Backport-of: a31130fd4056907edcb420761722c629a33273eb

! jdk/src/share/classes/com/sun/imageio/plugins/gif/GIFImageReader.java
+ jdk/test/javax/imageio/plugins/gif/GIFLargeTableIndexTest.java

Changeset: 0d5ea9d2
Branch: master
Author:    Martin Balao <mbalao at openjdk.org>
Date:      2022-08-26 21:48:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0d5ea9d29e97f1e4adcc1e1d36bc109fc5cee506

8292688: Support Security properties in security.testlibrary.Proc

Reviewed-by: sgehwolf

! jdk/test/java/security/testlibrary/Proc.java

Changeset: 81d58f87
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-02 00:41:52 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/81d58f874b1390adcb6a6db936512e739eb47a67

Merge jdk8u352-b05

Added tag jdk8u352-b05 for changeset 0d5ea9d29e97f1e4adcc1e1d36bc109fc5cee506



From andrew at openjdk.org  Mon Jun  2 00:21:26 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 2 Jun 2025 00:21:26 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u362-b00 for changeset
 0d5ea9d2
Message-ID: <b194f1d8-f049-4fba-8e4c-a5bb30217b13@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-01 18:32:28 +0000

Added tag jdk8u362-b00 for changeset 0d5ea9d29e9
Changeset: 0d5ea9d2
Author:    Martin Balao <mbalao at openjdk.org>
Date:      2022-08-26 21:48:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0d5ea9d29e97f1e4adcc1e1d36bc109fc5cee506


From andrew at openjdk.org  Mon Jun  2 00:21:30 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 2 Jun 2025 00:21:30 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u362-b00 for
 changeset 81d58f87
Message-ID: <4ec13143-6e41-4d75-a55e-150f94e6a672@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-02 01:07:22 +0000

Added tag shenandoah8u362-b00 for changeset 81d58f874b1
Changeset: 81d58f87
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-02 00:41:52 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/81d58f874b1390adcb6a6db936512e739eb47a67


From andrew at openjdk.org  Mon Jun  2 00:21:35 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 2 Jun 2025 00:21:35 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u352-b05 for changeset
 0d5ea9d2
Message-ID: <2a656f15-78c3-478b-af9b-e2329693cd54@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-08-31 02:27:37 +0000

Added tag jdk8u352-b05 for changeset 0d5ea9d29e97f1e4adcc1e1d36bc109fc5cee506
Changeset: 0d5ea9d2
Author:    Martin Balao <mbalao at openjdk.org>
Date:      2022-08-26 21:48:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0d5ea9d29e97f1e4adcc1e1d36bc109fc5cee506


From andrew at openjdk.org  Mon Jun  2 00:21:42 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 2 Jun 2025 00:21:42 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u352-b05 for
 changeset 81d58f87
Message-ID: <4005cbde-4660-476a-9d12-0f3e426437ae@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-02 01:05:36 +0000

Added tag shenandoah8u352-b05 for changeset 81d58f874b1
Changeset: 81d58f87
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-02 00:41:52 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/81d58f874b1390adcb6a6db936512e739eb47a67


From andrew at openjdk.org  Mon Jun  2 00:25:06 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 2 Jun 2025 00:25:06 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <KQo1PcbwDxDoIBs84NFA0toJqk3m7min6muCKg3dgEY=.d11c2c4b-3a33-41e8-be24-5a3e2feda26e@github.com>
References: <V9U5ZafjgkFbuRSILo7CBgVo4M9C1B5glEkRXpWG5uc=.317f84df-de52-48fc-adb3-3a73845d663b@github.com>
 <KQo1PcbwDxDoIBs84NFA0toJqk3m7min6muCKg3dgEY=.d11c2c4b-3a33-41e8-be24-5a3e2feda26e@github.com>
Message-ID: <c9s5E0c8RamuPGXuwiB6FMoI4D4t4asql-vY0V0-RaM=.93ff9fcc-881c-46e9-943f-f0e464328eec@github.com>

On Mon, 2 Jun 2025 00:20:45 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

>> Merge jdk8u352-b05
>
> Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

GHA builds will not work until [JDK-8284622](https://bugs.openjdk.org/browse/JDK-8284622) is merged in 8u362-b03

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk8u/pull/27#issuecomment-2928188371

From tschatzl at openjdk.org  Mon Jun  2 07:41:52 2025
From: tschatzl at openjdk.org (Thomas Schatzl)
Date: Mon, 2 Jun 2025 07:41:52 GMT
Subject: RFR: 8357944: Remove unused CollectedHeap::is_maximal_no_gc
In-Reply-To: <hsK4SlLg6hpAsW06ZvUlke7CsgbpSsGpYNL6uyI4YGc=.68fe5690-b1d4-457d-8ab1-faffd90edba2@github.com>
References: <hsK4SlLg6hpAsW06ZvUlke7CsgbpSsGpYNL6uyI4YGc=.68fe5690-b1d4-457d-8ab1-faffd90edba2@github.com>
Message-ID: <2QWPYqes70JwJ-5k9C91yuFeLb-aVFKClOgyovWLFwY=.8faa61a4-a9f5-4a75-83fb-2cde568d71a0@github.com>

On Wed, 28 May 2025 07:17:14 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Removing effectively dead code/API for all GCs except G1.

Marked as reviewed by tschatzl (Reviewer).

-------------

PR Review: https://git.openjdk.org/jdk/pull/25482#pullrequestreview-2887146273

From andrew at openjdk.org  Mon Jun  2 08:25:21 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 2 Jun 2025 08:25:21 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <Q97uDI-8UK8qbJ_hreiKNX93EH-kQ4fdNODQs-f-dug=.cee7f1a0-83c5-4960-b2fe-a532dc9f7718@github.com>

Merge jdk8u352-b06

-------------

Commit messages:
 - Merge jdk8u352-b06
 - 8028265: Add legacy tz tests to OpenJDK

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/28/files
  Stats: 1221 lines in 9 files changed: 1221 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/28.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/28/head:pull/28

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/28

From andrew at openjdk.org  Mon Jun  2 08:25:21 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 2 Jun 2025 08:25:21 GMT
Subject: RFR: Merge jdk8u:master
In-Reply-To: <Q97uDI-8UK8qbJ_hreiKNX93EH-kQ4fdNODQs-f-dug=.cee7f1a0-83c5-4960-b2fe-a532dc9f7718@github.com>
References: <Q97uDI-8UK8qbJ_hreiKNX93EH-kQ4fdNODQs-f-dug=.cee7f1a0-83c5-4960-b2fe-a532dc9f7718@github.com>
Message-ID: <ZfiSU5CspChm9IO1zGjLI8ZLMkDaMQdVm9zGrotMNiU=.c790e018-4de8-497d-a8e8-c75e41018383@github.com>

On Mon, 2 Jun 2025 08:20:42 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u352-b06

GHA builds will not work until [JDK-8284622](https://bugs.openjdk.org/browse/JDK-8284622) is merged in 8u362-b03

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk8u/pull/28#issuecomment-2929385560

From ayang at openjdk.org  Mon Jun  2 08:28:04 2025
From: ayang at openjdk.org (Albert Mingkun Yang)
Date: Mon, 2 Jun 2025 08:28:04 GMT
Subject: RFR: 8357944: Remove unused CollectedHeap::is_maximal_no_gc
In-Reply-To: <hsK4SlLg6hpAsW06ZvUlke7CsgbpSsGpYNL6uyI4YGc=.68fe5690-b1d4-457d-8ab1-faffd90edba2@github.com>
References: <hsK4SlLg6hpAsW06ZvUlke7CsgbpSsGpYNL6uyI4YGc=.68fe5690-b1d4-457d-8ab1-faffd90edba2@github.com>
Message-ID: <zbUFbZsduQ2QjjQWednY0GdE4qDDn4pjWo-Q59pWmFc=.0bfa503d-8bdb-467f-925a-8558dc6c2f08@github.com>

On Wed, 28 May 2025 07:17:14 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Removing effectively dead code/API for all GCs except G1.

Thanks for review.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25482#issuecomment-2929388616

From ayang at openjdk.org  Mon Jun  2 08:28:04 2025
From: ayang at openjdk.org (Albert Mingkun Yang)
Date: Mon, 2 Jun 2025 08:28:04 GMT
Subject: Integrated: 8357944: Remove unused CollectedHeap::is_maximal_no_gc
In-Reply-To: <hsK4SlLg6hpAsW06ZvUlke7CsgbpSsGpYNL6uyI4YGc=.68fe5690-b1d4-457d-8ab1-faffd90edba2@github.com>
References: <hsK4SlLg6hpAsW06ZvUlke7CsgbpSsGpYNL6uyI4YGc=.68fe5690-b1d4-457d-8ab1-faffd90edba2@github.com>
Message-ID: <wRCS8nUGfPm4tf4IrJfcSzkIhlDn4Kd_Jgi6QtI10ss=.b9597b49-c30f-4418-a048-44a7abb2bb1c@github.com>

On Wed, 28 May 2025 07:17:14 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Removing effectively dead code/API for all GCs except G1.

This pull request has now been integrated.

Changeset: 64183062
Author:    Albert Mingkun Yang <ayang at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/6418306211be47063a9b06bad8003dee1d81570c
Stats:     51 lines in 12 files changed: 0 ins; 50 del; 1 mod

8357944: Remove unused CollectedHeap::is_maximal_no_gc

Reviewed-by: jsikstro, tschatzl

-------------

PR: https://git.openjdk.org/jdk/pull/25482

From andrew at openjdk.org  Mon Jun  2 08:31:32 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 2 Jun 2025 08:31:32 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 2 new changesets
Message-ID: <83fbef78-244e-4cb6-9ca0-2ff98dba7656@openjdk.org>

Changeset: e2cbfd5a
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-16 16:42:50 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/e2cbfd5acaae9a98921dc29363bce3a037cacc43

8028265: Add legacy tz tests to OpenJDK

Backport-of: 92deab546549ca549408a983fe361d9536d2cd37

+ jdk/test/java/util/TimeZone/AssureTzdataVersion.java
+ jdk/test/java/util/TimeZone/Bug6329116.java
+ jdk/test/java/util/TimeZone/TextFileReader.java
+ jdk/test/java/util/TimeZone/TimeZoneData/VERSION
+ jdk/test/java/util/TimeZone/TimeZoneData/aliases.txt
+ jdk/test/java/util/TimeZone/TimeZoneData/displaynames.txt
+ jdk/test/java/util/TimeZone/tools/share/CompareYearData.pl
+ jdk/test/java/util/TimeZone/tools/share/Makefile
+ jdk/test/java/util/TimeZone/tools/share/makeZoneData.pl

Changeset: 010985d2
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-02 08:26:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/010985d2bdada99b477c99290f4d71b7e82b8f05

Merge jdk8u352-b06

Added tag jdk8u352-b06 for changeset e2cbfd5acaa



From andrew at openjdk.org  Mon Jun  2 08:31:43 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 2 Jun 2025 08:31:43 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u352-b06 for changeset
 e2cbfd5a
Message-ID: <15eedbfd-1202-4b6b-8d7d-1bc2117000a7@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-22 01:31:19 +0000

Added tag jdk8u352-b06 for changeset e2cbfd5acaa
Changeset: e2cbfd5a
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-16 16:42:50 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/e2cbfd5acaae9a98921dc29363bce3a037cacc43


From andrew at openjdk.org  Mon Jun  2 08:31:48 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 2 Jun 2025 08:31:48 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u352-b06 for
 changeset 010985d2
Message-ID: <627867b5-5eaa-4f83-855a-7219fd84a401@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-02 09:19:06 +0000

Added tag shenandoah8u352-b06 for changeset 010985d2bda
Changeset: 010985d2
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-02 08:26:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/010985d2bdada99b477c99290f4d71b7e82b8f05


From andrew at openjdk.org  Mon Jun  2 08:32:26 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 2 Jun 2025 08:32:26 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <Q97uDI-8UK8qbJ_hreiKNX93EH-kQ4fdNODQs-f-dug=.cee7f1a0-83c5-4960-b2fe-a532dc9f7718@github.com>
References: <Q97uDI-8UK8qbJ_hreiKNX93EH-kQ4fdNODQs-f-dug=.cee7f1a0-83c5-4960-b2fe-a532dc9f7718@github.com>
Message-ID: <XcmVQX0ZIVyX-s8Do8rrMNTjvCOQCkVIK82KZuEAXUs=.7724097f-c00f-4f4d-8a3f-0307d9d68fcd@github.com>

> Merge jdk8u352-b06

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/28/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/28/files/010985d2..010985d2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=28&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=28&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/28.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/28/head:pull/28

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/28

From iris at openjdk.org  Mon Jun  2 08:32:26 2025
From: iris at openjdk.org (Iris Clark)
Date: Mon, 2 Jun 2025 08:32:26 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <Q97uDI-8UK8qbJ_hreiKNX93EH-kQ4fdNODQs-f-dug=.cee7f1a0-83c5-4960-b2fe-a532dc9f7718@github.com>
References: <Q97uDI-8UK8qbJ_hreiKNX93EH-kQ4fdNODQs-f-dug=.cee7f1a0-83c5-4960-b2fe-a532dc9f7718@github.com>
Message-ID: <v6mlw4Djrv5ajarxA9gvFf8s0eeI_es5zLmWQv6VpMk=.67b34534-a091-4ca6-a70f-a89b443089c4@github.com>

On Mon, 2 Jun 2025 08:20:42 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u352-b06

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/28

From andrew at openjdk.org  Mon Jun  2 11:29:21 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 2 Jun 2025 11:29:21 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <0y32GXec6MdnS_J2ZR-WvxXclZuslKIt23oWB995lR8=.15c6f575-eb06-4197-85cd-4a1fc666644c@github.com>

Merge jdk8u352-b07

-------------

Commit messages:
 - Merge jdk8u352-b07
 - 8292579: (tz) Update Timezone Data to 2022c

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/29/files
  Stats: 2007 lines in 27 files changed: 490 ins; 1222 del; 295 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/29.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/29/head:pull/29

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/29

From andrew at openjdk.org  Mon Jun  2 11:32:22 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 2 Jun 2025 11:32:22 GMT
Subject: RFR: Merge jdk8u:master
In-Reply-To: <0y32GXec6MdnS_J2ZR-WvxXclZuslKIt23oWB995lR8=.15c6f575-eb06-4197-85cd-4a1fc666644c@github.com>
References: <0y32GXec6MdnS_J2ZR-WvxXclZuslKIt23oWB995lR8=.15c6f575-eb06-4197-85cd-4a1fc666644c@github.com>
Message-ID: <HP-uaOTMCIH5F1gXDFY9hgl5KP8mhvgnVy6B2O1RD1Q=.f6e5b46b-5dec-4635-9207-c5988f65cace@github.com>

On Mon, 2 Jun 2025 11:25:30 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u352-b07

GHA builds will not work until [JDK-8284622](https://bugs.openjdk.org/browse/JDK-8284622) is merged in 8u362-b03

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk8u/pull/29#issuecomment-2930163040

From rwestrel at redhat.com  Mon Jun  2 15:52:02 2025
From: rwestrel at redhat.com (Roland Westrelin)
Date: Mon, 02 Jun 2025 17:52:02 +0200
Subject: C2 Jit compiler fails accessing off-heap memory via Unsafe with
 ShenandoahGC
In-Reply-To: <136180f2-df08-444b-8d80-63a10296a85f@gmail.com>
References: <136180f2-df08-444b-8d80-63a10296a85f@gmail.com>
Message-ID: <87plfm6t0d.fsf@redhat.com>


Hi Sergey,

Thanks for the bug report. I created
https://bugs.openjdk.org/browse/JDK-8358334 to track that one. I'm
having a look.

Roland.


From wkemper at openjdk.org  Mon Jun  2 16:51:34 2025
From: wkemper at openjdk.org (William Kemper)
Date: Mon, 2 Jun 2025 16:51:34 GMT
Subject: Integrated: 8358102: GenShen: Age tables could be seeded with
 cumulative values
Message-ID: <HScMXAilfZgm_U51aJShwPC7lNSKFGhOgBA3FvPawU8=.bf63b9ef-9265-41f2-a369-8f25dd515e0d@github.com>

When dynamic tenuring threshold is disabled, or the age census is configured to be computed during evacuation, the first cohort is seeded with the cumulative counts, rather than the current cycle's counts. This is not the default configuration so this is not an urgent issue.

-------------

Commit messages:
 - Use census data from current cycle, rather than cumulative values

Changes: https://git.openjdk.org/jdk/pull/25535/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25535&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8358102
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/25535.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25535/head:pull/25535

PR: https://git.openjdk.org/jdk/pull/25535

From ysr at openjdk.org  Mon Jun  2 16:51:34 2025
From: ysr at openjdk.org (Y. Srinivas Ramakrishna)
Date: Mon, 2 Jun 2025 16:51:34 GMT
Subject: Integrated: 8358102: GenShen: Age tables could be seeded with
 cumulative values
In-Reply-To: <HScMXAilfZgm_U51aJShwPC7lNSKFGhOgBA3FvPawU8=.bf63b9ef-9265-41f2-a369-8f25dd515e0d@github.com>
References: <HScMXAilfZgm_U51aJShwPC7lNSKFGhOgBA3FvPawU8=.bf63b9ef-9265-41f2-a369-8f25dd515e0d@github.com>
Message-ID: <2QwNjBKqo7q-vwQGJpyIJPc5RsEAwzqzBmZk1erJ9yE=.f3be64f5-3937-48e2-abd0-aea71a6e4081@github.com>

On Fri, 30 May 2025 01:25:11 GMT, William Kemper <wkemper at openjdk.org> wrote:

> When dynamic tenuring threshold is disabled, or the age census is configured to be computed during evacuation, the first cohort is seeded with the cumulative counts, rather than the current cycle's counts. This is not the default configuration so this is not an urgent issue.

LGTM. Thanks for finding and fixing the issue.

-------------

Marked as reviewed by ysr (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25535#pullrequestreview-2881868083

From wkemper at openjdk.org  Mon Jun  2 16:51:35 2025
From: wkemper at openjdk.org (William Kemper)
Date: Mon, 2 Jun 2025 16:51:35 GMT
Subject: Integrated: 8358102: GenShen: Age tables could be seeded with
 cumulative values
In-Reply-To: <HScMXAilfZgm_U51aJShwPC7lNSKFGhOgBA3FvPawU8=.bf63b9ef-9265-41f2-a369-8f25dd515e0d@github.com>
References: <HScMXAilfZgm_U51aJShwPC7lNSKFGhOgBA3FvPawU8=.bf63b9ef-9265-41f2-a369-8f25dd515e0d@github.com>
Message-ID: <bjWAOHiwWaPZZ-jMu12GvRuS8KEV7NhBLvxwkgwyZqY=.75cf8175-1af5-4309-8915-15b5a27f1bf2@github.com>

On Fri, 30 May 2025 01:25:11 GMT, William Kemper <wkemper at openjdk.org> wrote:

> When dynamic tenuring threshold is disabled, or the age census is configured to be computed during evacuation, the first cohort is seeded with the cumulative counts, rather than the current cycle's counts. This is not the default configuration so this is not an urgent issue.

This pull request has now been integrated.

Changeset: 99a4b22a
Author:    William Kemper <wkemper at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/99a4b22ae7dc2755df1780cc7d74c5d6e3cd4cd4
Stats:     1 line in 1 file changed: 0 ins; 0 del; 1 mod

8358102: GenShen: Age tables could be seeded with cumulative values

Reviewed-by: ysr

-------------

PR: https://git.openjdk.org/jdk/pull/25535

From xpeng at openjdk.org  Tue Jun  3 05:36:23 2025
From: xpeng at openjdk.org (Xiaolong Peng)
Date: Tue, 3 Jun 2025 05:36:23 GMT
Subject: RFR: 8354555: Add generic JFR events for TaskTerminator [v6]
In-Reply-To: <_7FP2wNe8p3N8SxKdmCN1x4zKO8TT5JWRcWEt51i35c=.4fbac292-3cb7-48b9-922e-1114f74e0549@github.com>
References: <_7FP2wNe8p3N8SxKdmCN1x4zKO8TT5JWRcWEt51i35c=.4fbac292-3cb7-48b9-922e-1114f74e0549@github.com>
Message-ID: <YFAxc852vkvdLICX0N-skKxzy4dhQPHBZhyYAmysqBo=.8bcbe070-3ed1-48e0-b16e-c4d4f8391572@github.com>

> The purpose of the PR is to add generic JFR events for TaskTerminator to track the attempts and timings that GC threads have tried to terminate GC tasks.
> 
> Today only G1 emits JFR event with name `Termination` from [G1ParEvacuateFollowersClosure](https://github.com/openjdk/jdk/blob/master/src/hotspot/share/gc/g1/g1YoungCollector.cpp#L555-L563), all other garbage collectors don't emit any JFR event for the termination attempt at all. 
> 
> By adding this, it gives performance engineers the visibility to the termination attempts and  termination time when GC threads trying to finish GC tasks, we could build tool to analyze the jfr events to determine if there is potential data structure issue in application code, e.g. very large LinkedList or LinkedBlockingQueue.
> 
> For the test, I have manually tested different GCs with Flight Recording enabled and verified the events:
> G1:
> 
> jdk.GCPhaseParallel {
>   startTime = 23:09:34.124 (2025-05-22)
>   duration = 0.0108 ms
>   gcId = 0
>   gcWorkerId = 8
>   name = "Termination"
>   eventThread = "GC Thread#4" (osThreadId = 20483)
> }
> 
> jdk.GCPhaseParallel {
>   startTime = 23:09:34.124 (2025-05-22)
>   duration = 0.0467 ms
>   gcId = 0
>   gcWorkerId = 2
>   name = "Termination"
>   eventThread = "GC Thread#2" (osThreadId = 21251)
> }
> 
> jdk.GCPhaseParallel {
>   startTime = 23:09:34.124 (2025-05-22)
>   duration = 0.0474 ms
>   gcId = 0
>   gcWorkerId = 1
>   name = "Termination"
>   eventThread = "GC Thread#8" (osThreadId = 36359)
> }
> jdk.GCPhaseParallel {
>   startTime = 23:09:41.925 (2025-05-22)
>   duration = 0.000834 ms
>   gcId = 14
>   gcWorkerId = 7
>   name = "Termination: Parallel Marking"
>   eventThread = "GC Thread#1" (osThreadId = 21507)
> }
> 
> jdk.GCPhaseParallel {
>   startTime = 23:09:41.925 (2025-05-22)
>   duration = 0.000166 ms
>   gcId = 14
>   gcWorkerId = 7
>   name = "Termination: Parallel Marking"
>   eventThread = "GC Thread#1" (osThreadId = 21507)
> }
> 
> 
> Shenandoah: 
> 
> jdk.GCPhaseParallel {
>   startTime = 23:39:58.890 (2025-05-22)
>   duration = 0.0202 ms
>   gcId = 0
>   gcWorkerId = 0
>   name = "Termination: Concurrent Mark"
>   eventThread = "Shenandoah GC Threads#3" (osThreadId = 13827)
> }
> 
> jdk.GCPhaseParallel {
>   startTime = 23:39:58.890 (2025-05-22)
>   duration = 0.0205 ms
>   gcId = 0
>   gcWorkerId = 1
>   name = "Termination: Concurrent Mark"
>   eventThread = "Shenandoah GC Threads#1" (osThreadId = 14339)
> }
> 
> jdk.GCPhaseParallel {
>   startTime = 23:39:58.890 (2025-05-22)
>   duration = 0.0127 ms
>   gcId = 0
>   gcWorkerId = 5
>   name = "Termination: Final Mark"
>   eventThread = "Shenandoah G...

Xiaolong Peng has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 30 commits:

 - Merge branch 'openjdk:master' into JDK-8354555
 - Merge branch 'openjdk:master' into JDK-8354555
 - Fix jft test failure
 - Merge branch 'master' into JDK-8354555
 - Patch to fix the PR concerns
 - Emit exact same events for G1 as G1 is emitting today from G1EvacuateRegionsBaseTask and G1STWRefProcProxyTask
 - Add include "workerThread.hpp"
 - Touch up
 - Move TERMINATION_EVENT_NAME_PREFIX_ASSERT to taskTerminator.cpp
 - Fix ident
 - ... and 20 more: https://git.openjdk.org/jdk/compare/832c5b06...8fb9a402

-------------

Changes: https://git.openjdk.org/jdk/pull/24676/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24676&range=05
  Stats: 90 lines in 10 files changed: 68 ins; 7 del; 15 mod
  Patch: https://git.openjdk.org/jdk/pull/24676.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24676/head:pull/24676

PR: https://git.openjdk.org/jdk/pull/24676

From andrew at openjdk.org  Tue Jun  3 16:46:50 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 3 Jun 2025 16:46:50 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 2 new changesets
Message-ID: <9900e586-2f50-419d-a9ea-bd5a51ea0ae8@openjdk.org>

Changeset: 46da2c31
Branch: master
Author:    David Alvarez <alvdavi at amazon.com>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-25 21:38:03 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/46da2c31efef73b7c2914c8d252554556145b00b

8292579: (tz) Update Timezone Data to 2022c

Reviewed-by: andrew
Backport-of: 98d85e6f594bf34b97407c470b14791af0a2bc53

! jdk/make/data/tzdata/VERSION
! jdk/make/data/tzdata/africa
! jdk/make/data/tzdata/antarctica
! jdk/make/data/tzdata/asia
! jdk/make/data/tzdata/australasia
! jdk/make/data/tzdata/backward
! jdk/make/data/tzdata/etcetera
! jdk/make/data/tzdata/europe
! jdk/make/data/tzdata/leapseconds
! jdk/make/data/tzdata/northamerica
! jdk/make/data/tzdata/southamerica
! jdk/make/data/tzdata/zone.tab
! jdk/test/java/util/TimeZone/TimeZoneData/VERSION
! jdk/test/java/util/TimeZone/TimeZoneData/aliases.txt
! jdk/test/java/util/TimeZone/TimeZoneData/displaynames.txt
! jdk/test/sun/util/calendar/zi/tzdata/VERSION
! jdk/test/sun/util/calendar/zi/tzdata/africa
! jdk/test/sun/util/calendar/zi/tzdata/antarctica
! jdk/test/sun/util/calendar/zi/tzdata/asia
! jdk/test/sun/util/calendar/zi/tzdata/australasia
! jdk/test/sun/util/calendar/zi/tzdata/backward
! jdk/test/sun/util/calendar/zi/tzdata/etcetera
! jdk/test/sun/util/calendar/zi/tzdata/europe
! jdk/test/sun/util/calendar/zi/tzdata/leapseconds
! jdk/test/sun/util/calendar/zi/tzdata/northamerica
! jdk/test/sun/util/calendar/zi/tzdata/southamerica
! jdk/test/sun/util/calendar/zi/tzdata/zone.tab

Changeset: 67129e99
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-02 09:30:08 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/67129e99cc0107981f90b7f5b18362c1c138e632

Merge jdk8u352-b07

Added tag jdk8u352-b07 for changeset 46da2c31efe



From andrew at openjdk.org  Tue Jun  3 16:46:59 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 3 Jun 2025 16:46:59 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u352-b07 for changeset
 46da2c31
Message-ID: <2177b467-0c90-479b-9d2f-6a093ae8f013@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-26 16:13:09 +0000

Added tag jdk8u352-b07 for changeset 46da2c31efe
Changeset: 46da2c31
Author:    David Alvarez <alvdavi at amazon.com>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-25 21:38:03 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/46da2c31efef73b7c2914c8d252554556145b00b


From andrew at openjdk.org  Tue Jun  3 16:47:01 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 3 Jun 2025 16:47:01 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u352-b07 for
 changeset 67129e99
Message-ID: <b57b9eb9-4cba-4f99-a76d-743bead038f3@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-02 12:22:09 +0000

Added tag shenandoah8u352-b07 for changeset 67129e99cc0
Changeset: 67129e99
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-02 09:30:08 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/67129e99cc0107981f90b7f5b18362c1c138e632


From andrew at openjdk.org  Tue Jun  3 16:49:59 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 3 Jun 2025 16:49:59 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <0y32GXec6MdnS_J2ZR-WvxXclZuslKIt23oWB995lR8=.15c6f575-eb06-4197-85cd-4a1fc666644c@github.com>
References: <0y32GXec6MdnS_J2ZR-WvxXclZuslKIt23oWB995lR8=.15c6f575-eb06-4197-85cd-4a1fc666644c@github.com>
Message-ID: <aA3tLJLbreim5N5wRHNR04RMxXb2Vpf35iPEwqE1WFw=.2416fe40-30da-49bb-9145-d4e172fa7ca7@github.com>

> Merge jdk8u352-b07

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/29/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/29/files/67129e99..67129e99

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=29&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=29&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/29.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/29/head:pull/29

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/29

From iris at openjdk.org  Tue Jun  3 16:50:00 2025
From: iris at openjdk.org (Iris Clark)
Date: Tue, 3 Jun 2025 16:50:00 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <0y32GXec6MdnS_J2ZR-WvxXclZuslKIt23oWB995lR8=.15c6f575-eb06-4197-85cd-4a1fc666644c@github.com>
References: <0y32GXec6MdnS_J2ZR-WvxXclZuslKIt23oWB995lR8=.15c6f575-eb06-4197-85cd-4a1fc666644c@github.com>
Message-ID: <JMCkj6m6lw9aeQv9ZRf5qknTYGxvpY5mzjUsW1tia88=.fc03d2d4-0ee3-4df3-962d-c29ea8dab31f@github.com>

On Mon, 2 Jun 2025 11:25:30 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u352-b07

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/29

From duke at openjdk.org  Tue Jun  3 21:52:22 2025
From: duke at openjdk.org (duke)
Date: Tue, 3 Jun 2025 21:52:22 GMT
Subject: Withdrawn: 8344116: C2: remove slice parameter from LoadNode::make
In-Reply-To: <Po0DIjZv6wmSdwNcL1BeN5s9xvih8YKDqaw7Io5wIl8=.82dc3319-de61-4afc-898c-a7550bf9c9ac@github.com>
References: <Po0DIjZv6wmSdwNcL1BeN5s9xvih8YKDqaw7Io5wIl8=.82dc3319-de61-4afc-898c-a7550bf9c9ac@github.com>
Message-ID: <fRIZrH2ZE7I8VgwIKyJfmMAigRPBzJEXhGSVY_xa8bI=.e8e1e51c-4793-44bd-b1f3-daf6b6f7245d@github.com>

On Wed, 26 Mar 2025 15:18:25 GMT, Zihao Lin <duke at openjdk.org> wrote:

> This patch remove slice parameter from LoadNode::make
> 
> Mention in https://github.com/openjdk/jdk/pull/21834#pullrequestreview-2429164805
> 
> Hi team, I am new, I'd appreciate any guidance. Thank a lot!

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/jdk/pull/24258

From andrew at openjdk.org  Wed Jun  4 13:14:29 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 4 Jun 2025 13:14:29 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <zfmEVKqI4BM3ml8Ng5hMFBeqQdbadWdnIolMpSlsWsc=.5b0ec339-c506-4f82-8bbb-9f6a077f715f@github.com>

Merge jdk8u352-b08

-------------

Commit messages:
 - Merge jdk8u352-b08
 - 8288508: Enhance ECDSA usage
 - 8286918: Better HttpServer service
 - 8147862: Null check too late in sun.net.httpserver.ServerImpl
 - 8286910: Improve JNDI lookups
 - 8286533: Key X509 usages
 - 8286526: Improve NTLM support
 - 8286519: Better memory handling
 - 8286511: Improve macro allocation
 - 8285662: Better permission resolution
 - ... and 1 more: https://git.openjdk.org/shenandoah-jdk8u/compare/67129e99...d00219b5

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/30/files
  Stats: 933 lines in 22 files changed: 654 ins; 85 del; 194 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/30.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/30/head:pull/30

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/30

From andrew at openjdk.org  Wed Jun  4 13:18:39 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 4 Jun 2025 13:18:39 GMT
Subject: RFR: Merge jdk8u:master
In-Reply-To: <zfmEVKqI4BM3ml8Ng5hMFBeqQdbadWdnIolMpSlsWsc=.5b0ec339-c506-4f82-8bbb-9f6a077f715f@github.com>
References: <zfmEVKqI4BM3ml8Ng5hMFBeqQdbadWdnIolMpSlsWsc=.5b0ec339-c506-4f82-8bbb-9f6a077f715f@github.com>
Message-ID: <4uoNXzxejTg9FEtXSXSE88zpY-w8-PeMTIqcROya1IE=.9d73c12a-7742-41e2-96f7-e1fc7189e7f7@github.com>

On Wed, 4 Jun 2025 11:58:32 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u352-b08

GHA builds will not work until [JDK-8284622](https://bugs.openjdk.org/browse/JDK-8284622) is merged in 8u362-b03

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk8u/pull/30#issuecomment-2940004558

From andrew at openjdk.org  Wed Jun  4 16:55:31 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 4 Jun 2025 16:55:31 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 11 new changesets
Message-ID: <9dec78eb-1156-4f04-8fed-b6677defd64e@openjdk.org>

Changeset: 987c7384
Branch: master
Author:    Ekaterina Vergizova <evergizova at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-06-23 11:51:13 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/987c7384267be18fe86d3bd2514d389a5d62306c

8282252: Improve BigInteger/Decimal validation

Reviewed-by: mbalao, andrew
Backport-of: e863e256f9e7465a97d3fb2a109299987e990b7c

! jdk/src/share/classes/java/math/BigDecimal.java
! jdk/src/share/classes/java/math/BigInteger.java
+ jdk/test/java/math/BigDecimal/ConstructorUnscaledValue.java
! jdk/test/java/math/BigDecimal/SerializationTests.java
+ jdk/test/java/math/BigInteger/SerializationTests.java

Changeset: b916428d
Branch: master
Author:    Aleksei Voitylov <avoitylov at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-12 22:40:37 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/b916428d331b2513041002b76613e447dc88485b

8285662: Better permission resolution

Reviewed-by: mbalao, andrew
Backport-of: 18c17a1391aaa67c71da13f034674fc294c25d5a

! jdk/src/share/classes/java/security/UnresolvedPermission.java

Changeset: f793489d
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-07-22 04:30:14 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f793489d9d5780cb4a2387f9d877756b6f9f5111

8286511: Improve macro allocation

Reviewed-by: mbalao, andrew
Backport-of: 4ab7ce961a95d7ba350b1cbca584a8e698186047

! jdk/src/share/native/common/sizecalc.h

Changeset: d9f1978b
Branch: master
Author:    David Alvarez <alvdavi at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-10-03 07:21:10 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d9f1978b82a1d2fad89c84b04686b163c4ac30e7

8286519: Better memory handling

Co-authored-by: Oli Gillespie <ogillesp at amazon.com>
Reviewed-by: mbalao, andrew
Backport-of: adfc2b195a84867fc2a66e00fad7f3c95693bc3b

! hotspot/src/share/vm/runtime/os.cpp

Changeset: 62b1b3e5
Branch: master
Author:    Martin Balao <mbalao at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-01 17:13:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/62b1b3e5de6285a95a912d5bc62331bad35c151c

8286526: Improve NTLM support

Reviewed-by: andrew
Backport-of: 2d1bc2e55c7ed5f123f3ab5d505b7866a28ba4c7

! jdk/src/share/classes/com/sun/security/ntlm/Client.java
! jdk/src/share/classes/com/sun/security/ntlm/NTLM.java
! jdk/src/share/classes/com/sun/security/ntlm/NTLMException.java
! jdk/src/share/classes/com/sun/security/ntlm/Server.java
! jdk/test/sun/net/www/protocol/http/NULLTargetInfoTest.java

Changeset: e09162ae
Branch: master
Author:    Alexey Bakhtin <abakhtin at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-09 07:20:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/e09162aec2a124325126720bf559eb31a16d03ed

8286533: Key X509 usages

Reviewed-by: mbalao, andrew
Backport-of: c2a13eef3642987386db1b4759507e30796c0acc

! jdk/src/share/classes/sun/security/util/DerInputStream.java

Changeset: a2fb4c15
Branch: master
Author:    David Alvarez <alvdavi at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-10-03 05:01:01 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/a2fb4c151714ae4203cb6d024fcbf9c1ea590bdb

8286910: Improve JNDI lookups

Reviewed-by: mbalao, andrew
Backport-of: daf133f773ea567d66663ce6916541bc0df1421a

! jdk/src/share/classes/com/sun/jndi/dns/DNSDatagramSocketFactory.java

Changeset: 83d9d818
Branch: master
Author:    Martin Balao <mbalao at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2016-01-24 22:27:16 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/83d9d81848772805aac2a70deed0f36b38d0d824

8147862: Null check too late in sun.net.httpserver.ServerImpl

Reviewed-by: andrew
Backport-of: 1cbdf12c056362cc6ac85239de7c8d93a356ee0f

! jdk/src/share/classes/sun/net/httpserver/ServerImpl.java

Changeset: c0d68041
Branch: master
Author:    Martin Balao <mbalao at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-08 10:11:45 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c0d680413deb88912bbc4ba706fa1d2056d90169

8286918: Better HttpServer service

Reviewed-by: andrew
Backport-of: 6f2ad19b82f90c11a16b4f33ecf130190e2cf616

! jdk/src/share/classes/sun/net/httpserver/HttpConnection.java
! jdk/src/share/classes/sun/net/httpserver/SSLStreams.java
! jdk/src/share/classes/sun/net/httpserver/ServerConfig.java
! jdk/src/share/classes/sun/net/httpserver/ServerImpl.java
- jdk/src/share/classes/sun/net/httpserver/TimeSource.java
! jdk/test/com/sun/net/httpserver/bugs/6725892/Test.java

Changeset: dfa5f148
Branch: master
Author:    Aleksei Voitylov <avoitylov at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-06 20:45:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/dfa5f14848df6b4b41f839004d6baf37ca2f4f8d

8288508: Enhance ECDSA usage

Reviewed-by: mbalao, andrew
Backport-of: efd603063e60ca6861b41309445d7b8e20768d9b

! jdk/src/share/native/sun/security/ec/impl/ec.c

Changeset: d00219b5
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-03 17:46:31 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d00219b5dc87be0ac161a6a2def114ed7b840201

Merge jdk8u352-b08

Added tag jdk8u352-b08 for changeset dfa5f14848d



From andrew at openjdk.org  Wed Jun  4 16:55:41 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 4 Jun 2025 16:55:41 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u352-b08 for changeset
 dfa5f148
Message-ID: <43ab1860-04d2-4c6f-a500-d35dc60c1b89@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-10-11 01:32:50 +0000

Added tag jdk8u352-b08 for changeset dfa5f14848d
Changeset: dfa5f148
Author:    Aleksei Voitylov <avoitylov at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-06 20:45:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/dfa5f14848df6b4b41f839004d6baf37ca2f4f8d


From andrew at openjdk.org  Wed Jun  4 16:55:45 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 4 Jun 2025 16:55:45 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u352-b08 for
 changeset d00219b5
Message-ID: <700d2cfd-703d-449f-89c3-8eb98f509072@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-03 22:51:29 +0000

Added tag shenandoah8u352-b08 for changeset d00219b5dc8
Changeset: d00219b5
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-03 17:46:31 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d00219b5dc87be0ac161a6a2def114ed7b840201


From andrew at openjdk.org  Wed Jun  4 16:55:49 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 4 Jun 2025 16:55:49 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u352-ga for changeset
 dfa5f148
Message-ID: <15010e7c-4035-48c7-a4bd-7cd6d457252b@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-10-20 01:51:55 +0000

Added tag jdk8u352-ga for changeset dfa5f14848d
Changeset: dfa5f148
Author:    Aleksei Voitylov <avoitylov at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-06 20:45:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/dfa5f14848df6b4b41f839004d6baf37ca2f4f8d


From andrew at openjdk.org  Wed Jun  4 16:55:55 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 4 Jun 2025 16:55:55 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u352-ga for
 changeset d00219b5
Message-ID: <8d23898f-8307-46e2-852a-13f5640b41d9@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-03 22:51:37 +0000

Added tag shenandoah8u352-ga for changeset d00219b5dc8
Changeset: d00219b5
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-03 17:46:31 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d00219b5dc87be0ac161a6a2def114ed7b840201


From andrew at openjdk.org  Wed Jun  4 16:56:29 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 4 Jun 2025 16:56:29 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <zfmEVKqI4BM3ml8Ng5hMFBeqQdbadWdnIolMpSlsWsc=.5b0ec339-c506-4f82-8bbb-9f6a077f715f@github.com>
References: <zfmEVKqI4BM3ml8Ng5hMFBeqQdbadWdnIolMpSlsWsc=.5b0ec339-c506-4f82-8bbb-9f6a077f715f@github.com>
Message-ID: <xUWZc5K7c-Pc-APHxTyDVMEBVQ1v48wKqpVkWK4CInI=.d5fb5a70-9a98-43c5-b4d5-3cb7df7eda51@github.com>

> Merge jdk8u352-b08

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/30/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/30/files/d00219b5..d00219b5

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=30&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=30&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/30.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/30/head:pull/30

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/30

From iris at openjdk.org  Wed Jun  4 16:56:29 2025
From: iris at openjdk.org (Iris Clark)
Date: Wed, 4 Jun 2025 16:56:29 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <zfmEVKqI4BM3ml8Ng5hMFBeqQdbadWdnIolMpSlsWsc=.5b0ec339-c506-4f82-8bbb-9f6a077f715f@github.com>
References: <zfmEVKqI4BM3ml8Ng5hMFBeqQdbadWdnIolMpSlsWsc=.5b0ec339-c506-4f82-8bbb-9f6a077f715f@github.com>
Message-ID: <vBzvaB5nYwJ9RLDBSZREChL6SQwmMWGb55efJeJx0cw=.9ece8b2d-2e39-4357-b5c0-d8d84d6145e2@github.com>

On Wed, 4 Jun 2025 11:58:32 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u352-b08

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/30

From andrew at openjdk.org  Sat Jun  7 14:51:04 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 14:51:04 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <oz-qAj2xbkXFSEDufdZxl0g5ny1yF9h9ONRbeXlnuIM=.a4803139-b600-4b14-85d9-890a51c00119@github.com>

Merge jdk8u362-b01

-------------

Commit messages:
 - Merge jdk8u362-b01
 - 8265527: tools/javac/diags/CheckExamples.java fails after JDK-8078024 8u backport
 - 8206456: [TESTBUG] docker jtreg tests fail on systems without cpuset.effective_cpus / cpuset.effective_mems
 - Merge
 - 8054066: com/sun/jdi/DoubleAgentTest.java fails with timeout
 - Merge
 - 8271459: C2: Missing NegativeArraySizeException when creating StringBuilder with negative capacity
 - 8269850: Most JDK releases report macOS version 12 as 10.16 instead of 12.0
 - 8295164: JDK 8 jdi tests should not use tasklist command on Windows
 - 8253702: BigSur version number reported as 10.16, should be 11.nn
 - ... and 14 more: https://git.openjdk.org/shenandoah-jdk8u/compare/d00219b5...f28a46ae

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=31&range=00.0
 - jdk8u:master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=31&range=00.1

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/31/files
  Stats: 862 lines in 32 files changed: 356 ins; 339 del; 167 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/31.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/31/head:pull/31

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/31

From andrew at openjdk.org  Sat Jun  7 14:54:29 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 14:54:29 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 24 new changesets
Message-ID: <41a05eae-87f6-414f-b5fd-360293c4272a@openjdk.org>

Changeset: 266918d1
Branch: master
Author:    Rui Li <ruiamzn at amazon.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-08-30 09:12:20 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/266918d1d384f0fa002c6f5f508b84835fe57c13

8071530: Update OS detection code to reflect Windows 10 version change

Backport-of: fa47cc3e215fe4bb7531ff1a78f3965e2e84ac9f

! hotspot/src/os/windows/vm/os_windows.cpp

Changeset: bd946fa7
Branch: master
Author:    Rui Li <ruiamzn at amazon.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-08-30 17:35:55 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/bd946fa751cc3b979bb9906941b4570d1750471f

8274840: Update OS detection code to recognize Windows 11

Reviewed-by: phh
Backport-of: 97ea9dd2f24f9f1fb9b9345a4202a825ee28e014

! hotspot/src/os/windows/vm/os_windows.cpp
! jdk/src/windows/native/java/lang/java_props_md.c

Changeset: 2be37c31
Branch: master
Author:    George Adams <georgeadams1995 at gmail.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-08-30 19:02:09 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/2be37c31bbd26e0aa8d1e7d3cc3bf333b64eeaa0

8292762: Remove .jcheck directories from jdk8u subcomponents

Reviewed-by: phh

- corba/.jcheck/conf
- hotspot/.jcheck/conf
- jaxp/.jcheck/conf
- jaxws/.jcheck/conf
- jdk/.jcheck/conf
- langtools/.jcheck/conf
- nashorn/.jcheck/conf

Changeset: daccfee6
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-08-31 17:43:38 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/daccfee68e4a18461ab79bb18930d8ad8044b2cb

8293181: Bump update version of OpenJDK: 8u362

Reviewed-by: sgehwolf

! .jcheck/conf
! common/autoconf/version-numbers

Changeset: 65b1748a
Branch: master
Author:    Alexey Pavlyutkin <apavlyutkin at azul.com>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-01 01:17:11 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/65b1748adfc0843bbc8c0d7dcddb7c5490256b31

8273176: handle latest VS2019 in abstract_vm_version

Reviewed-by: andrew
Backport-of: 0e14bf70cf6e482a2ec7d13ed37df0bee911740d

! hotspot/src/share/vm/runtime/vm_version.cpp

Changeset: 9f037b06
Branch: master
Author:    bobpengxie <bobpengxie at tencent.com>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-01 01:18:50 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/9f037b06fe380b22cfb5665b3b9539d65b463914

8283903: GetContainerCpuLoad does not return the correct result in share mode

Reviewed-by: andrew
Backport-of: a625bfdba45d49bc717bcc9be4112db93b50f50a

! jdk/src/solaris/classes/sun/management/OperatingSystemImpl.java

Changeset: fa340ab0
Branch: master
Author:    Dongbo He <dongbohe at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-09-01 01:23:16 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/fa340ab0e5d4f95bdd6b8c05b39517eb34239594

8067941: [TESTBUG] Fix tests for OS with 64K page size.

Reviewed-by: andrew
Backport-of: 8e2df5f543522866e7c27ff95ea6fb6458393682

! hotspot/src/share/vm/memory/metaspace.cpp
! hotspot/test/compiler/6865265/StackOverflowBug.java
! hotspot/test/compiler/8009761/Test8009761.java
! hotspot/test/compiler/exceptions/TestRecursiveReplacedException.java
! hotspot/test/compiler/uncommontrap/StackOverflowGuardPagesOff.java
! hotspot/test/compiler/uncommontrap/TestStackBangMonitorOwned.java
! hotspot/test/compiler/uncommontrap/TestStackBangRbp.java
! hotspot/test/gc/arguments/TestMaxHeapSizeTools.java
! hotspot/test/gc/g1/TestHumongousAllocInitialMark.java

Changeset: ba408e55
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2022-09-07 00:24:27 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ba408e5553f3692e18e0933352cfa3a333528a3a

8288928: Incorrect GPL header in pnglibconf.h (backport of JDK-8185041)

Reviewed-by: phh, andrew

! jdk/src/share/native/sun/awt/libpng/pnglibconf.h

Changeset: f0ac3199
Branch: master
Author:    Martin Balao <mbalao at openjdk.org>
Date:      2022-09-09 18:07:56 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f0ac31998d8396d92b4ce99aa345c05e6fd0f02a

8195607: sun/security/pkcs11/Secmod/TestNssDbSqlite.java failed with "NSS initialization failed" on NSS 3.34.1

Reviewed-by: andrew
Backport-of: b44c24d290362e4edf5b0bf18b1ecce1583daeff

! jdk/src/share/classes/sun/security/pkcs11/Secmod.java
! jdk/src/share/native/sun/security/pkcs11/j2secmod.c
! jdk/src/solaris/native/sun/security/pkcs11/j2secmod_md.h
+ jdk/test/sun/security/pkcs11/Secmod/pkcs11.txt
! jdk/test/sun/security/pkcs11/SecmodTest.java

Changeset: d2853822
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2022-09-28 20:01:02 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d285382278fcb76ceddfb61cf8bb047ff269de44

8293461: Add a test for JDK-8290832

Reviewed-by: phh

+ jdk/test/java/io/File/ChangeDefaultUserDir.java

Changeset: a93344b2
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-10-11 12:13:44 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/a93344b27d4b3df6cbca7185bcfca1410b51a984

8294863: Enable partial tier1 testing in GHA for JDK8

Reviewed-by: sgehwolf

! .github/workflows/submit.yml

Changeset: 859c057c
Branch: master
Author:    Nikita Ivanov <nivanov at cloudlinux.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-10-11 14:15:28 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/859c057c87ad15920c28f495094f8de6953b2e99

8148005: One byte may be corrupted by get_datetime_string()

Reviewed-by: phh
Backport-of: 395a248587b5bd16c3e61c4cefb73799ade0af95

! hotspot/src/share/vm/utilities/ostream.cpp

Changeset: 4a25b00a
Branch: master
Author:    Joshua Cao <joshcao at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-10-11 15:09:41 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/4a25b00aba29dd45529be805c4ec135f20228d80

8274563: jfr/event/oldobject/TestClassLoaderLeak.java fails when GC cycles are not happening

Reviewed-by: phh
Backport-of: 47bfc8aa9367ff852ea5d901f1fa3c6ef316913e

! jdk/test/jdk/jfr/event/oldobject/TestClassLoaderLeak.java

Changeset: 861ac32e
Branch: master
Author:    Victor Rudometov <vrudomet at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-10-11 19:53:28 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/861ac32e43a425b682d18a2cc748a8b82435148f

8293828: JFR: jfr/event/oldobject/TestClassLoaderLeak.java still fails when GC cycles are not happening

Reviewed-by: phh
Backport-of: 5002eaa5cc7301b91a45f8c0f65b5943fea225d8

! jdk/test/jdk/jfr/event/oldobject/TestClassLoaderLeak.java

Changeset: 05b249d6
Branch: master
Author:    Olga Mikhaltsova <omikhaltcova at openjdk.org>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2022-10-13 09:59:41 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/05b249d61aac56c1d4bb346649b6cb8d157deaef

8253702: BigSur version number reported as 10.16, should be 11.nn

Backport-of: 66757750a2adf0739d0f5bf98a3f50a123b7adcf

! jdk/src/solaris/native/java/lang/java_props_macosx.c

Changeset: 8280a89a
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-10-13 12:09:11 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/8280a89a1e4748ca6b7534dceca8c2b1fd17697a

8295164: JDK 8 jdi tests should not use tasklist command on Windows

Also enable jdk_tier1 GHA tests on Windows

Reviewed-by: sgehwolf

! .github/workflows/submit.yml
! jdk/test/com/sun/jdi/ShellScaffold.sh

Changeset: 43cfe27f
Branch: master
Author:    Olga Mikhaltsova <omikhaltcova at openjdk.org>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2022-10-13 15:20:54 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/43cfe27fa3a11dd6d4fffcb1c1336ac7fdd0233b

8269850: Most JDK releases report macOS version 12 as 10.16 instead of 12.0

Backport-of: 3b1b8fc646493eae5f4df828afe29abb75fa5e60

! jdk/src/solaris/native/java/lang/java_props_macosx.c

Changeset: dfeeceb2
Branch: master
Author:    Alexey Pavlyutkin <apavlyutkin at azul.com>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2022-10-14 09:23:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/dfeeceb224a62bd7ffbe5adfd36eebe6c853935a

8271459: C2: Missing NegativeArraySizeException when creating StringBuilder with negative capacity

Reviewed-by: roland
Backport-of: 844c504bc18fa8a79ceacc6b6f235650f5e643bf

! hotspot/src/share/vm/opto/stringopts.cpp

Changeset: 5b5e548f
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-10-15 00:26:36 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/5b5e548fba1073a1f87df3c71f0d09b63e033ced

Merge


Changeset: 58d0281c
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-10-19 08:56:06 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/58d0281c52f8c1e9642c6fc5bd696235498b0ae2

8054066: com/sun/jdi/DoubleAgentTest.java fails with timeout

The test changed to use testlibrary

Reviewed-by: dsamersoff, sgehwolf
Backport-of: 3e3dcfb635bb7dc956f406ca2db6f375ee1b76a8

! jdk/test/com/sun/jdi/DoubleAgentTest.java

Changeset: 60930770
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-10-19 20:07:32 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/60930770b9238e55d72689092b9e127bc619ce87

Merge


Changeset: 1f8eafd8
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-10-21 16:31:24 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1f8eafd8a05ce979eefd9ed45f5e7c6fb5fc5f2d

8206456: [TESTBUG] docker jtreg tests fail on systems without cpuset.effective_cpus / cpuset.effective_mems

The changes to MetricsTester.java in the original commit were merged in "8223147: JFR Backport".

Reviewed-by: sgehwolf
Backport-of: 6fc4db4799599df66a2cf5207068336ce68136ff

! jdk/test/jdk/internal/platform/docker/MetricsCpuTester.java

Changeset: f04ad96c
Branch: master
Author:    Peter Zhelezniakov <peterz at openjdk.org>
Date:      2022-10-26 05:37:56 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f04ad96cf53385c9f8aa071a4167ad7790cb8466

8265527: tools/javac/diags/CheckExamples.java fails after JDK-8078024 8u backport

Reviewed-by: sgehwolf

! langtools/test/tools/javac/diags/examples.not-yet.txt
! langtools/test/tools/javac/diags/examples/WhereIntersection.java

Changeset: f28a46ae
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-04 17:55:14 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f28a46ae0890a43f7e73ae0883afd1c7438dd90c

Merge jdk8u362-b01

Added tag jdk8u362-b01 for changeset f04ad96cf53

! .jcheck/conf
! .jcheck/conf


From andrew at openjdk.org  Sat Jun  7 14:54:44 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 14:54:44 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u362-b01 for changeset
 f04ad96c
Message-ID: <44caab15-503f-48d1-9021-0585b17a56f7@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-11-01 19:37:17 +0000

Added tag jdk8u362-b01 for changeset f04ad96cf53
Changeset: f04ad96c
Author:    Peter Zhelezniakov <peterz at openjdk.org>
Date:      2022-10-26 05:37:56 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f04ad96cf53385c9f8aa071a4167ad7790cb8466


From andrew at openjdk.org  Sat Jun  7 14:54:56 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 14:54:56 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u362-b01 for
 changeset f28a46ae
Message-ID: <8a522acd-7d78-4206-bef7-544280fa6f1d@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 15:45:18 +0000

Added tag shenandoah8u362-b01 for changeset f28a46ae089
Changeset: f28a46ae
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-04 17:55:14 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f28a46ae0890a43f7e73ae0883afd1c7438dd90c


From andrew at openjdk.org  Sat Jun  7 14:55:55 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 14:55:55 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <oz-qAj2xbkXFSEDufdZxl0g5ny1yF9h9ONRbeXlnuIM=.a4803139-b600-4b14-85d9-890a51c00119@github.com>
References: <oz-qAj2xbkXFSEDufdZxl0g5ny1yF9h9ONRbeXlnuIM=.a4803139-b600-4b14-85d9-890a51c00119@github.com>
Message-ID: <UGrJKIX7FFdOy3rq0IXHql7LgHB9XYz7TYrY99EM9bQ=.d0d4155c-c461-4007-8036-147a07231fff@github.com>

> Merge jdk8u362-b01

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/31/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/31/files/f28a46ae..f28a46ae

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=31&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=31&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/31.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/31/head:pull/31

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/31

From andrew at openjdk.org  Sat Jun  7 14:55:56 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 14:55:56 GMT
Subject: RFR: Merge jdk8u:master
In-Reply-To: <oz-qAj2xbkXFSEDufdZxl0g5ny1yF9h9ONRbeXlnuIM=.a4803139-b600-4b14-85d9-890a51c00119@github.com>
References: <oz-qAj2xbkXFSEDufdZxl0g5ny1yF9h9ONRbeXlnuIM=.a4803139-b600-4b14-85d9-890a51c00119@github.com>
Message-ID: <V_nGKlIskvQAuMddQVPocSAwqnKs9UQIsyCRAbQI-Zw=.e2c6e038-437c-4e5f-8fc8-0937578e75e2@github.com>

On Sat, 7 Jun 2025 14:46:02 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u362-b01

GHA builds will not work until [JDK-8284622](https://bugs.openjdk.org/browse/JDK-8284622) is merged in 8u362-b03

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk8u/pull/31#issuecomment-2952598048

From iris at openjdk.org  Sat Jun  7 14:55:56 2025
From: iris at openjdk.org (Iris Clark)
Date: Sat, 7 Jun 2025 14:55:56 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <oz-qAj2xbkXFSEDufdZxl0g5ny1yF9h9ONRbeXlnuIM=.a4803139-b600-4b14-85d9-890a51c00119@github.com>
References: <oz-qAj2xbkXFSEDufdZxl0g5ny1yF9h9ONRbeXlnuIM=.a4803139-b600-4b14-85d9-890a51c00119@github.com>
Message-ID: <wm04LjECJOT6kqKgbX1K1aYhPCpaFuiG9ERUS1TeP2A=.b995ffc1-a377-4612-91ce-815000777e85@github.com>

On Sat, 7 Jun 2025 14:46:02 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u362-b01

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/31

From andrew at openjdk.org  Sat Jun  7 19:29:11 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 19:29:11 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <HexanyBnhLDOrk21CPJ5iE_kaQtvxOFUrLPxs9B5Yhc=.33f21ccd-de79-4d4f-925e-d7610f5d6af4@github.com>

Merge jdk8u362-b02

-------------

Commit messages:
 - Merge jdk8u362-b02
 - 8295950: Enable langtools/tier1 in GHA for 8u
 - 8295173: (tz) Update Timezone Data to 2022e
 - 8294357: (tz) Update Timezone Data to 2022d

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/32/files
  Stats: 375 lines in 20 files changed: 107 ins; 129 del; 139 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/32.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/32/head:pull/32

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/32

From andrew at openjdk.org  Sat Jun  7 19:29:11 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 19:29:11 GMT
Subject: RFR: Merge jdk8u:master
In-Reply-To: <HexanyBnhLDOrk21CPJ5iE_kaQtvxOFUrLPxs9B5Yhc=.33f21ccd-de79-4d4f-925e-d7610f5d6af4@github.com>
References: <HexanyBnhLDOrk21CPJ5iE_kaQtvxOFUrLPxs9B5Yhc=.33f21ccd-de79-4d4f-925e-d7610f5d6af4@github.com>
Message-ID: <ETrgOAooZ-2stWqXuIEOTftbLPzLSVV_t03LbwotrBc=.2dc62e61-57f2-4b27-97cd-ce7100f76c24@github.com>

On Sat, 7 Jun 2025 19:24:59 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u362-b02

GHA builds will not work until [JDK-8284622](https://bugs.openjdk.org/browse/JDK-8284622) is merged in 8u362-b03

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk8u/pull/32#issuecomment-2952916831

From andrew at openjdk.org  Sat Jun  7 19:33:54 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 19:33:54 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 4 new changesets
Message-ID: <7998369f-761a-4e54-95f7-e670cb517dc6@openjdk.org>

Changeset: 28cc8358
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-11-02 15:12:17 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/28cc835812298471e2b62d0ddd4d57edfd70d72d

8294357: (tz) Update Timezone Data to 2022d

Reviewed-by: sgehwolf
Backport-of: f67b4de8a07b8158be1dfb5b09cdb4cc5b7ac93b

! jdk/make/data/tzdata/VERSION
! jdk/make/data/tzdata/asia
! jdk/make/data/tzdata/backward
! jdk/make/data/tzdata/europe
! jdk/make/data/tzdata/southamerica
! jdk/make/data/tzdata/zone.tab
! jdk/src/share/classes/sun/util/calendar/ZoneInfoFile.java
! jdk/test/java/util/TimeZone/TimeZoneData/VERSION
! jdk/test/java/util/TimeZone/TimeZoneData/aliases.txt
! jdk/test/java/util/TimeZone/TimeZoneData/displaynames.txt
! jdk/test/sun/util/calendar/zi/TestZoneInfo310.java
! jdk/test/sun/util/calendar/zi/tzdata/VERSION
! jdk/test/sun/util/calendar/zi/tzdata/asia
! jdk/test/sun/util/calendar/zi/tzdata/backward
! jdk/test/sun/util/calendar/zi/tzdata/europe
! jdk/test/sun/util/calendar/zi/tzdata/southamerica
! jdk/test/sun/util/calendar/zi/tzdata/zone.tab

Changeset: 64faf400
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-11-02 16:41:48 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/64faf4000c81982119a54b86926786d076989b9d

8295173: (tz) Update Timezone Data to 2022e

Reviewed-by: sgehwolf
Backport-of: 21407dec0156301871a83328615e4d975c4287c4

! jdk/make/data/tzdata/VERSION
! jdk/make/data/tzdata/asia
! jdk/make/data/tzdata/europe
! jdk/make/data/tzdata/northamerica
! jdk/test/java/util/TimeZone/TimeZoneData/VERSION
! jdk/test/java/util/TimeZone/TimeZoneData/displaynames.txt
! jdk/test/sun/util/calendar/zi/tzdata/VERSION
! jdk/test/sun/util/calendar/zi/tzdata/asia
! jdk/test/sun/util/calendar/zi/tzdata/europe
! jdk/test/sun/util/calendar/zi/tzdata/northamerica

Changeset: ae6d30db
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-11-03 16:45:19 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ae6d30dba462ee53eb89999b7b24a72693737c03

8295950: Enable langtools/tier1 in GHA for 8u

Reviewed-by: sgehwolf

! .github/workflows/submit.yml

Changeset: ef53b93b
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 19:25:28 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ef53b93b5edae5daeef581c1180de316ae29b205

Merge jdk8u362-b02

Added tag jdk8u362-b02 for changeset HEAD^



From andrew at openjdk.org  Sat Jun  7 19:34:03 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 19:34:03 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u362-b02 for changeset
 ae6d30db
Message-ID: <8104c6a3-50dd-4333-8196-3db1569e319e@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-11-07 18:34:20 +0000

Added tag jdk8u362-b02 for changeset HEAD^
Changeset: ae6d30db
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-11-03 16:45:19 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ae6d30dba462ee53eb89999b7b24a72693737c03


From andrew at openjdk.org  Sat Jun  7 19:34:06 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 19:34:06 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u362-b02 for
 changeset ef53b93b
Message-ID: <b36928dd-6752-4c5b-9cef-ba0d7cabc138@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 20:21:01 +0000

Added tag shenandoah8u362-b02 for changeset ef53b93b5ed
Changeset: ef53b93b
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 19:25:28 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ef53b93b5edae5daeef581c1180de316ae29b205


From andrew at openjdk.org  Sat Jun  7 19:34:59 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 19:34:59 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <HexanyBnhLDOrk21CPJ5iE_kaQtvxOFUrLPxs9B5Yhc=.33f21ccd-de79-4d4f-925e-d7610f5d6af4@github.com>
References: <HexanyBnhLDOrk21CPJ5iE_kaQtvxOFUrLPxs9B5Yhc=.33f21ccd-de79-4d4f-925e-d7610f5d6af4@github.com>
Message-ID: <JDOlxRFdrLoMGVV78C_hu_88VWggj7gSwcJZ4rHlP5c=.440f290e-94c5-4fe3-b5d9-03d0ba85ae3b@github.com>

> Merge jdk8u362-b02

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/32/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/32/files/ef53b93b..ef53b93b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=32&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=32&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/32.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/32/head:pull/32

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/32

From iris at openjdk.org  Sat Jun  7 19:35:00 2025
From: iris at openjdk.org (Iris Clark)
Date: Sat, 7 Jun 2025 19:35:00 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <HexanyBnhLDOrk21CPJ5iE_kaQtvxOFUrLPxs9B5Yhc=.33f21ccd-de79-4d4f-925e-d7610f5d6af4@github.com>
References: <HexanyBnhLDOrk21CPJ5iE_kaQtvxOFUrLPxs9B5Yhc=.33f21ccd-de79-4d4f-925e-d7610f5d6af4@github.com>
Message-ID: <nnISfSl8nMmfy-tXzSS7I9W2_TBwXvq93kjZy8qeZ1g=.1e222d58-6203-43a6-b334-888a22322807@github.com>

On Sat, 7 Jun 2025 19:24:59 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u362-b02

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/32

From andrew at openjdk.org  Sat Jun  7 20:09:00 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 20:09:00 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <dHuLYpnF0Lmm37QbwVL07QmJZzXH-8iuBwdBzrRTYH4=.d3fc3d72-194a-41df-923d-58b2d8a4401f@github.com>

Merge jdk8u362-b03

-------------

Commit messages:
 - Merge jdk8u362-b03
 - 8159599: [TEST_BUG] java/awt/Modal/ModalInternalFrameTest/ModalInternalFrameTest.java
 - 8221529: [TESTBUG] Docker tests use old/deprecated image on AArch64
 - 8284622: Update versions of some Github Actions used in JDK workflow
 - 8233551: [TESTBUG] SelectEditTableCell.java fails on MacOS
 - 8295288: Some vm_flags tests associate with a wrong BugID
 - 7124218: [TEST_BUG] [macosx] Space should select cell in the JTable
 - 8159720: Failure of C2 compilation with tiered prevents some C1 compilations
 - 8224506: [TESTBUG] TestDockerMemoryMetrics.java fails with exitValue = 137
 - 8296555: Enable hotspot/tier1 for 64-bit builds in GHA for 8u
 - ... and 2 more: https://git.openjdk.org/shenandoah-jdk8u/compare/ef53b93b...47035be5

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=33&range=00.0
 - jdk8u:master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=33&range=00.1

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/33/files
  Stats: 525 lines in 19 files changed: 387 ins; 26 del; 112 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/33.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/33/head:pull/33

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/33

From andrew at openjdk.org  Sat Jun  7 20:17:14 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 20:17:14 GMT
Subject: RFR: Merge jdk8u:master
In-Reply-To: <dHuLYpnF0Lmm37QbwVL07QmJZzXH-8iuBwdBzrRTYH4=.d3fc3d72-194a-41df-923d-58b2d8a4401f@github.com>
References: <dHuLYpnF0Lmm37QbwVL07QmJZzXH-8iuBwdBzrRTYH4=.d3fc3d72-194a-41df-923d-58b2d8a4401f@github.com>
Message-ID: <nJ91fBuEI7-whAb34a168SXfKdWrsnz4RQ3c0cdrdSo=.d3b72080-e52f-44e9-b8dc-5556d0257ec9@github.com>

On Sat, 7 Jun 2025 20:03:27 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u362-b03

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk8u/pull/33#issuecomment-2952962476

From andrew at openjdk.org  Sat Jun  7 20:20:27 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 20:20:27 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 12 new changesets
Message-ID: <e2151e81-98e6-4f5e-a974-2d82ea4b5727@openjdk.org>

Changeset: 2cd66fb9
Branch: master
Author:    Alexey Bakhtin <abakhtin at openjdk.org>
Date:      2022-11-07 11:50:11 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/2cd66fb929dd6716dae33cd05d112ec2fb0ea6f3

8270344: Session resumption errors

Reviewed-by: mbalao
Backport-of: 04a806ec86a388b8de31d42f904c4321beb69e14

! jdk/src/share/classes/sun/security/ssl/ClientHello.java
! jdk/src/share/classes/sun/security/ssl/HandshakeContext.java
+ jdk/test/sun/security/ssl/SSLSessionImpl/InvalidateSession.java

Changeset: fb984187
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-11-08 12:46:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/fb98418773b63dcbf9fea17d5e660bf4a135017e

8295915: Problemlist compiler/rtm failures specific to 8u

Reviewed-by: phh, sgehwolf

! hotspot/test/ProblemList.txt

Changeset: c605aa3f
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-11-08 18:50:54 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c605aa3f5aa3e2370edcc9b3feb01f6f16541e2e

8296555: Enable hotspot/tier1 for 64-bit builds in GHA for 8u

Reviewed-by: phh, sgehwolf

! .github/workflows/submit.yml

Changeset: 01f7d1e3
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-11-08 18:52:41 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/01f7d1e3735ddddd4bd1796b962cf14395d6f4b2

8224506: [TESTBUG] TestDockerMemoryMetrics.java fails with exitValue = 137

Backport-of: 1719c0cc12e094856955c2a3294521b79b17ba7c

! jdk/test/jdk/internal/platform/docker/TestDockerMemoryMetrics.java

Changeset: 6e563e59
Branch: master
Author:    Yi Yang <yyang at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-11-09 15:30:20 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/6e563e59f3b4a9b25b4d52975daf4047f52d5b61

8159720: Failure of C2 compilation with tiered prevents some C1 compilations

If C2 fails to compile a method with tiered compilation, then it should mark the method as not compileable on the C2 tier only.

Reviewed-by: phh
Backport-of: cc10eca0b07f03d4765713d86eae39959f555c1f

! hotspot/src/share/vm/opto/compile.cpp
! hotspot/src/share/vm/opto/compile.hpp
! hotspot/src/share/vm/opto/matcher.cpp
! hotspot/src/share/vm/opto/parse1.cpp

Changeset: 0f9095fb
Branch: master
Author:    Victor Rudometov <vrudomet at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-11-09 17:43:26 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0f9095fbc3f61cc376ef6d6c793b5761eb64433b

7124218: [TEST_BUG] [macosx] Space should select cell in the JTable

Backport-of: 2e94af3f3d7010e89852721d1fda7a226e8ffb6c

+ jdk/test/javax/swing/JTable/7124218/SelectEditTableCell.java

Changeset: 736c1fb1
Branch: master
Author:    Joshua Cao <joshcao at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-11-09 19:12:12 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/736c1fb18fd8a5ee146ac0437193c4d59317161b

8295288: Some vm_flags tests associate with a wrong BugID

Backport-of: 3dbc38a2c903f533ace847a3bc0d2687f263fafd

! hotspot/test/testlibrary_tests/whitebox/vm_flags/BooleanTest.java
! hotspot/test/testlibrary_tests/whitebox/vm_flags/DoubleTest.java
! hotspot/test/testlibrary_tests/whitebox/vm_flags/StringTest.java
! hotspot/test/testlibrary_tests/whitebox/vm_flags/Uint64Test.java
! hotspot/test/testlibrary_tests/whitebox/vm_flags/UintxTest.java

Changeset: 3a1a2e02
Branch: master
Author:    Victor Rudometov <vrudomet at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-11-09 19:38:52 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3a1a2e02d6f410a59fa163da2f1d30204beaa379

8233551: [TESTBUG] SelectEditTableCell.java fails on MacOS

Reviewed-by: phh
Backport-of: 9b3fb5d1d5a6a3f0fc699b10bdff6d43ae8d1898

! jdk/test/javax/swing/JTable/7124218/SelectEditTableCell.java

Changeset: 3bfde7d0
Branch: master
Author:    Christoph Langer <clanger at openjdk.org>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-11-10 12:56:25 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3bfde7d03d594ea37dab54c73ee24c13c29b1150

8284622: Update versions of some Github Actions used in JDK workflow

Reviewed-by: sgehwolf
Backport-of: 61b8c91249fb4c6d594d4a0240c92e8607caf171

! .github/workflows/submit.yml

Changeset: f6d869f0
Branch: master
Author:    Dan Lutker <lutkerd at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-11-11 16:46:29 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f6d869f02569754431e4eaf69e4f66ee357ba425

8221529: [TESTBUG] Docker tests use old/deprecated image on AArch64

Reviewed-by: sgehwolf
Backport-of: 71ac3d952b6d5bf9eb08ec7daf07225b1ab66216

! hotspot/test/testlibrary/com/oracle/java/testlibrary/DockerfileConfig.java
! jdk/test/lib/jdk/test/lib/containers/docker/DockerfileConfig.java

Changeset: 2f509c70
Branch: master
Author:    Joshua Cao <joshcao at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-11-11 17:09:23 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/2f509c7070b96e2de02b27d5f752e775980cb75c

8159599: [TEST_BUG] java/awt/Modal/ModalInternalFrameTest/ModalInternalFrameTest.java

Reviewed-by: phh
Backport-of: f5beafa53f93a6ec03278dfd7063d7b3b0b9d241

! jdk/test/java/awt/Focus/SimpleWindowActivationTest/SimpleWindowActivationTest.java

Changeset: 47035be5
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 20:31:55 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/47035be599253a3a12e0d310f36ff75973d07ae3

Merge jdk8u362-b03

Added tag jdk8u362-b03 for changeset HEAD^

! hotspot/src/share/vm/opto/compile.cpp
! hotspot/src/share/vm/opto/compile.hpp
! hotspot/src/share/vm/opto/matcher.cpp
! hotspot/src/share/vm/opto/compile.cpp
! hotspot/src/share/vm/opto/compile.hpp
! hotspot/src/share/vm/opto/matcher.cpp


From andrew at openjdk.org  Sat Jun  7 20:20:37 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 20:20:37 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u362-b03 for changeset
 2f509c70
Message-ID: <c944bd52-2aee-49e1-aa30-fa733001266a@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-11-15 02:26:36 +0000

Added tag jdk8u362-b03 for changeset HEAD^
Changeset: 2f509c70
Author:    Joshua Cao <joshcao at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-11-11 17:09:23 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/2f509c7070b96e2de02b27d5f752e775980cb75c


From andrew at openjdk.org  Sat Jun  7 20:20:41 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 20:20:41 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u362-b03 for
 changeset 47035be5
Message-ID: <76711394-2897-4799-ab0d-fb19bbc969fc@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 20:59:47 +0000

Added tag shenandoah8u362-b03 for changeset 47035be5992
Changeset: 47035be5
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 20:31:55 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/47035be599253a3a12e0d310f36ff75973d07ae3


From andrew at openjdk.org  Sat Jun  7 20:21:18 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 20:21:18 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <dHuLYpnF0Lmm37QbwVL07QmJZzXH-8iuBwdBzrRTYH4=.d3fc3d72-194a-41df-923d-58b2d8a4401f@github.com>
References: <dHuLYpnF0Lmm37QbwVL07QmJZzXH-8iuBwdBzrRTYH4=.d3fc3d72-194a-41df-923d-58b2d8a4401f@github.com>
Message-ID: <9l3MqAOC07ZvDeRlVeJ1tPSnN13Si7669GD4WNBYKJM=.586db54c-4c35-459b-803c-451452afd919@github.com>

> Merge jdk8u362-b03

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/33/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/33/files/47035be5..47035be5

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=33&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=33&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/33.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/33/head:pull/33

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/33

From iris at openjdk.org  Sat Jun  7 20:21:18 2025
From: iris at openjdk.org (Iris Clark)
Date: Sat, 7 Jun 2025 20:21:18 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <dHuLYpnF0Lmm37QbwVL07QmJZzXH-8iuBwdBzrRTYH4=.d3fc3d72-194a-41df-923d-58b2d8a4401f@github.com>
References: <dHuLYpnF0Lmm37QbwVL07QmJZzXH-8iuBwdBzrRTYH4=.d3fc3d72-194a-41df-923d-58b2d8a4401f@github.com>
Message-ID: <1XsieHA426AOaDA9C2FiPWZadM6L0hBEjOu2W8E2wWM=.ebdd3cf8-ba75-4532-a364-ba95768595df@github.com>

On Sat, 7 Jun 2025 20:03:27 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u362-b03

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/33

From andrew at openjdk.org  Sat Jun  7 21:17:36 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 21:17:36 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 8 new changesets
Message-ID: <c6d472bd-655e-414f-9c8f-6128e2c8967b@openjdk.org>

Changeset: 17fd40ac
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-11-14 15:14:04 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/17fd40ac17b1bbcee302797961c67e38986a3ffd

8295714: GHA ::set-output is deprecated and will be removed

Reviewed-by: sgehwolf
Backport-of: b35922be6de7b848a2982d6a278dbd205fc39e6a

! .github/workflows/submit.yml

Changeset: 7024bf0a
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-11-15 13:02:58 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/7024bf0af8169ea8e36d812860072c40d5371327

8296959: Fix hotspot shell tests of 8u on multilib systems

Reviewed-by: sgehwolf

! hotspot/test/compiler/criticalnatives/argumentcorruption/Test8167409.sh
! hotspot/test/runtime/7107135/Test7107135.sh
! hotspot/test/runtime/InitialThreadOverflow/testme.sh
! hotspot/test/runtime/StackGap/testme.sh
! hotspot/test/runtime/jni/CallWithJNIWeak/test.sh
! hotspot/test/runtime/jni/ReturnJNIWeak/test.sh
! hotspot/test/runtime/jsig/Test8017498.sh
! hotspot/test/test_env.sh

Changeset: 6849667e
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-11-15 13:29:22 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/6849667e9be3f46d91ff8c2a645b9435a2b420de

8284389: Improve stability of GHA Pre-submit testing by caching cygwin installer

Reviewed-by: sgehwolf
Backport-of: 869b25975288398a1d60601daacf00a99f51cd56

! .github/workflows/submit.yml

Changeset: 7ae002ca
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2022-11-16 02:51:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/7ae002caba9ef17db5c105f76478424ce4cde04a

8286582: Build fails on macos aarch64 when using --with-zlib=bundled

Reviewed-by: phh, sgehwolf
Backport-of: 8363d9db801314f13e708db62993da5b73634f69

! jdk/make/lib/CoreLibraries.gmk

Changeset: b98d485d
Branch: master
Author:    Alexey Pavlyutkin <apavlyutkin at azul.com>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2022-11-17 09:01:35 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/b98d485df4db6b5adf074444f9a94d2510faf5a0

8197859: VS2017 Complains about UINTPTR_MAX definition in globalDefinitions_VisCPP.hpp

Use <stdint.h> and <inttypes.h> on Windows instead of emulation.

Reviewed-by: phh
Backport-of: b8ab854bdcf625772e965a5e476e0a9db1b91f3f

! hotspot/src/share/vm/utilities/globalDefinitions_visCPP.hpp

Changeset: 9cb87521
Branch: master
Author:    Joshua Cao <joshcao at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-11-18 15:00:41 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/9cb87521c3eb693f4131fe575de50028eed2a8d9

8079255: [TEST_BUG] [macosx] Test closed/java/awt/Robot/RobotWheelTest/RobotWheelTest fails for Mac only

Backport-of: e52bc6a831807006a20720f849e975428353cd17

+ jdk/test/java/awt/Robot/RobotWheelTest/RobotWheelTest.java

Changeset: 91d8b89a
Branch: master
Author:    Joshua Cao <joshcao at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-11-18 20:15:28 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/91d8b89ab976a8c25484da23ded6cdbb86f7b1e5

8129827: [TEST_BUG] Test java/awt/Robot/RobotWheelTest/RobotWheelTest.java fails

Reviewed-by: phh
Backport-of: a1efb95536fb3995780336604cc727f921770c63

! jdk/test/java/awt/Robot/RobotWheelTest/RobotWheelTest.java

Changeset: 1d45f856
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 21:19:48 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1d45f8566bbb7e564711764b7f1057a2368fbe1c

Merge jdk8u362-b04

Added tag jdk8u362-b04 for changeset 91d8b89ab97



From andrew at openjdk.org  Sat Jun  7 21:17:45 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 21:17:45 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u362-b04 for changeset
 91d8b89a
Message-ID: <9b57d7f5-94c7-4541-a583-0b222f6234c3@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-11-21 20:24:31 +0000

Added tag jdk8u362-b04 for changeset 91d8b89ab97
Changeset: 91d8b89a
Author:    Joshua Cao <joshcao at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-11-18 20:15:28 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/91d8b89ab976a8c25484da23ded6cdbb86f7b1e5


From andrew at openjdk.org  Sat Jun  7 21:17:49 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 21:17:49 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u362-b04 for
 changeset 1d45f856
Message-ID: <10e22936-d9ad-4cfc-bffa-94389dbc66f9@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 21:42:25 +0000

Added tag shenandoah8u362-b04 for changeset 1d45f8566bb
Changeset: 1d45f856
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 21:19:48 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1d45f8566bbb7e564711764b7f1057a2368fbe1c


From andrew at openjdk.org  Sat Jun  7 22:08:59 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 22:08:59 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <3lnMwdhj-T6UYC37seZMBt8eiAGKsvNKx_rH_koMiQA=.0f498085-05e4-4570-a431-c2c5d93809f6@github.com>

Merge jdk8u362-b05

-------------

Commit messages:
 - Merge jdk8u362-b05
 - 8255559: Leak File Descriptors Because of ResolverLocalFilesystem#engineResolveURI()
 - 8073464: GC workers do not have thread names
 - 6885993: Named Thread: introduce print() and print_on(outputStream* st) methods
 - 8269039: Disable SHA-1 Signed JARs
 - 8297141: Fix hotspot/test/runtime/SharedArchiveFile/DefaultUseWithClient.java for 8u
 - 8241086: Test runtime/NMT/HugeArenaTracking.java is failing on 32bit Windows

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=35&range=00.0
 - jdk8u:master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=35&range=00.1

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/35/files
  Stats: 801 lines in 48 files changed: 357 ins; 289 del; 155 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/35.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/35/head:pull/35

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/35

From andrew at openjdk.org  Sat Jun  7 22:13:02 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 22:13:02 GMT
Subject: RFR: Merge jdk8u:master
In-Reply-To: <3lnMwdhj-T6UYC37seZMBt8eiAGKsvNKx_rH_koMiQA=.0f498085-05e4-4570-a431-c2c5d93809f6@github.com>
References: <3lnMwdhj-T6UYC37seZMBt8eiAGKsvNKx_rH_koMiQA=.0f498085-05e4-4570-a431-c2c5d93809f6@github.com>
Message-ID: <7ZWJPeGBfUyZQ1VhAYfkft99EUj0GFufW1ccnJ2aB10=.4fe76592-f24e-4cd9-b2bb-f92b9980dabf@github.com>

On Sat, 7 Jun 2025 22:04:45 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u362-b05

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk8u/pull/35#issuecomment-2953151344

From andrew at openjdk.org  Sat Jun  7 22:16:56 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 22:16:56 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 7 new changesets
Message-ID: <f6e558be-ed04-4d06-accb-b1ab87fc0370@openjdk.org>

Changeset: da0c3828
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-11-22 15:31:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/da0c382888809c4e0e9b2c0a492e96647a5f103c

8241086: Test runtime/NMT/HugeArenaTracking.java is failing on 32bit Windows

Reviewed-by: sgehwolf
Backport-of: 0cf828153cf8ee337645645b0632e77b8733a734

! hotspot/test/runtime/NMT/HugeArenaTracking.java

Changeset: 5a32484f
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-11-22 15:49:49 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/5a32484f0f3be91ccaef76271361ef2fbfdf7558

8297141: Fix hotspot/test/runtime/SharedArchiveFile/DefaultUseWithClient.java for 8u

Reviewed-by: sgehwolf

! hotspot/test/runtime/SharedArchiveFile/DefaultUseWithClient.java

Changeset: c501bfaa
Branch: master
Author:    Alexey Bakhtin <abakhtin at openjdk.org>
Date:      2022-11-23 15:16:22 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c501bfaa5fc2502942b228c907372dccd58c4a20

8269039: Disable SHA-1 Signed JARs

Reviewed-by: mbalao
Backport-of: 6d91a3eb7bd1e1403cfb67f7eb8ce06d7e08e7a7

! jdk/src/share/classes/sun/security/provider/certpath/AlgorithmChecker.java
! jdk/src/share/classes/sun/security/provider/certpath/CertPathConstraintsParameters.java
! jdk/src/share/classes/sun/security/provider/certpath/PKIX.java
! jdk/src/share/classes/sun/security/provider/certpath/PKIXCertPathValidator.java
! jdk/src/share/classes/sun/security/provider/certpath/SunCertPathBuilder.java
! jdk/src/share/classes/sun/security/tools/jarsigner/Main.java
! jdk/src/share/classes/sun/security/util/DisabledAlgorithmConstraints.java
! jdk/src/share/classes/sun/security/util/JarConstraintsParameters.java
! jdk/src/share/lib/security/java.security-aix
! jdk/src/share/lib/security/java.security-linux
! jdk/src/share/lib/security/java.security-macosx
! jdk/src/share/lib/security/java.security-solaris
! jdk/src/share/lib/security/java.security-windows
- jdk/test/java/security/Security/signedfirst/Dyn.sh
+ jdk/test/java/security/Security/signedfirst/DynStatic.java
- jdk/test/java/security/Security/signedfirst/Static.sh
+ jdk/test/java/security/Security/signedfirst/com/sun/exp/provider/EXP.java
+ jdk/test/java/security/Security/signedfirst/com/sun/exp/provider/SHA.java
- jdk/test/java/security/Security/signedfirst/exp.jar
- jdk/test/java/security/Security/signedfirst/keystore.jks
! jdk/test/java/util/jar/JarFile/Signed.jar
! jdk/test/java/util/jar/JarFile/test.jar
! jdk/test/java/util/jar/JarInputStream/signed.jar
! jdk/test/lib/security/SecurityUtils.java
+ jdk/test/sun/security/tools/jarsigner/OldSig.props
! jdk/test/sun/security/tools/jarsigner/Test4431684.java
! jdk/test/sun/security/tools/jarsigner/TimestampCheck.java
! jdk/test/sun/security/tools/jarsigner/diffend.sh
! jdk/test/sun/security/tools/jarsigner/oldsig.sh

Changeset: 9f2f0c22
Branch: master
Author:    Volker Simonis <simonis at openjdk.org>
Date:      2022-11-25 10:51:11 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/9f2f0c220b44d0693dc05c915fe62e824bceaddf

6885993: Named Thread: introduce print() and print_on(outputStream* st) methods

Eliminating duplicated code by introducing print_on(outputStream* st) methods in NamedThread

Reviewed-by: phh, andrew
Backport-of: 16a3e2f16d3ffc4dd66e93aa9d75055279499282

! hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.cpp
! hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp
! hotspot/src/share/vm/gc_implementation/g1/concurrentG1RefineThread.cpp
! hotspot/src/share/vm/gc_implementation/g1/concurrentG1RefineThread.hpp
! hotspot/src/share/vm/gc_implementation/g1/concurrentMarkThread.cpp
! hotspot/src/share/vm/gc_implementation/g1/concurrentMarkThread.hpp
! hotspot/src/share/vm/gc_implementation/g1/g1StringDedupThread.cpp
! hotspot/src/share/vm/gc_implementation/g1/g1StringDedupThread.hpp
! hotspot/src/share/vm/gc_implementation/parallelScavenge/gcTaskThread.cpp
! hotspot/src/share/vm/gc_implementation/parallelScavenge/gcTaskThread.hpp
! hotspot/src/share/vm/runtime/thread.cpp
! hotspot/src/share/vm/runtime/thread.hpp
! hotspot/src/share/vm/runtime/vmThread.cpp
! hotspot/src/share/vm/runtime/vmThread.hpp

Changeset: df44cbff
Branch: master
Author:    Volker Simonis <simonis at openjdk.org>
Date:      2022-11-25 11:49:47 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/df44cbff663e6415ff75a5cf1a59d9836961ef27

8073464: GC workers do not have thread names

Reviewed-by: phh, andrew
Backport-of: a827cdfa1047ee0af30bb454aad2067420103bae

! hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.cpp
! hotspot/src/share/vm/gc_implementation/parallelScavenge/gcTaskThread.cpp
! hotspot/src/share/vm/gc_implementation/shared/concurrentGCThread.cpp
! hotspot/src/share/vm/runtime/thread.cpp
! hotspot/src/share/vm/runtime/thread.hpp
! hotspot/src/share/vm/runtime/vmThread.cpp
! hotspot/src/share/vm/utilities/workgroup.cpp

Changeset: 41159a51
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-11-25 16:34:21 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/41159a51b418405e634aa08deed07d47611af37f

8255559: Leak File Descriptors Because of ResolverLocalFilesystem#engineResolveURI()

Backport-of: d53072236c503295b893efa6372c869ac84fa688

! jdk/src/share/classes/org/jcp/xml/dsig/internal/dom/DOMReference.java

Changeset: 9708f6d9
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 22:15:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/9708f6d9eddcedd2c2ff78252e3977a78bb503b5

Merge jdk8u362-b05

Added tag jdk8u362-b05 for changeset 41159a51b41

! hotspot/src/share/vm/runtime/thread.cpp
! hotspot/src/share/vm/runtime/thread.hpp
! hotspot/src/share/vm/runtime/thread.cpp
! hotspot/src/share/vm/runtime/thread.hpp


From andrew at openjdk.org  Sat Jun  7 22:17:05 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 22:17:05 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u372-b00 for changeset
 41159a51
Message-ID: <1f05922d-f83e-4cc7-8b5d-ec076a5199db@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-30 14:30:48 +0000

Added tag jdk8u372-b00 for changeset 41159a51b41
Changeset: 41159a51
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-11-25 16:34:21 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/41159a51b418405e634aa08deed07d47611af37f


From andrew at openjdk.org  Sat Jun  7 22:17:09 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 22:17:09 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u372-b00 for
 changeset 9708f6d9
Message-ID: <4385a20f-995d-499c-a251-f351cfdc855d@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 23:05:02 +0000

Added tag shenandoah8u372-b00 for changeset 9708f6d9edd
Changeset: 9708f6d9
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 22:15:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/9708f6d9eddcedd2c2ff78252e3977a78bb503b5


From andrew at openjdk.org  Sat Jun  7 22:17:13 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 22:17:13 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u362-b05 for changeset
 41159a51
Message-ID: <96ad51e8-ab34-426e-8cf2-b16f52f2796e@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-11-28 10:47:05 +0000

Added tag jdk8u362-b05 for changeset 41159a51b41
Changeset: 41159a51
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-11-25 16:34:21 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/41159a51b418405e634aa08deed07d47611af37f


From andrew at openjdk.org  Sat Jun  7 22:17:20 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 22:17:20 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u362-b05 for
 changeset 9708f6d9
Message-ID: <ed497cb9-6a6f-4a7c-b3a5-1837b96042dd@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 22:36:07 +0000

Added tag shenandoah8u362-b05 for changeset 9708f6d9edd
Changeset: 9708f6d9
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 22:15:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/9708f6d9eddcedd2c2ff78252e3977a78bb503b5


From andrew at openjdk.org  Sat Jun  7 22:17:46 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 7 Jun 2025 22:17:46 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <3lnMwdhj-T6UYC37seZMBt8eiAGKsvNKx_rH_koMiQA=.0f498085-05e4-4570-a431-c2c5d93809f6@github.com>
References: <3lnMwdhj-T6UYC37seZMBt8eiAGKsvNKx_rH_koMiQA=.0f498085-05e4-4570-a431-c2c5d93809f6@github.com>
Message-ID: <f_QSbYGXT4EDwZN8J_ZNVuIJsT_sUsyulze7oehqJmM=.c6f068f2-04a3-40de-9574-4e2474bfccfc@github.com>

> Merge jdk8u362-b05

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/35/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/35/files/9708f6d9..9708f6d9

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=35&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=35&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/35.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/35/head:pull/35

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/35

From iris at openjdk.org  Sat Jun  7 22:17:46 2025
From: iris at openjdk.org (Iris Clark)
Date: Sat, 7 Jun 2025 22:17:46 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <3lnMwdhj-T6UYC37seZMBt8eiAGKsvNKx_rH_koMiQA=.0f498085-05e4-4570-a431-c2c5d93809f6@github.com>
References: <3lnMwdhj-T6UYC37seZMBt8eiAGKsvNKx_rH_koMiQA=.0f498085-05e4-4570-a431-c2c5d93809f6@github.com>
Message-ID: <FSkYWQ5-b49NxanXGMgboiSAN0_6oLvB3H_R9klpSKA=.f5431cc5-9219-4274-b376-67a32be9e0d9@github.com>

On Sat, 7 Jun 2025 22:04:45 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u362-b05

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/35

From kdnilsen at openjdk.org  Mon Jun  9 22:20:53 2025
From: kdnilsen at openjdk.org (Kelvin Nilsen)
Date: Mon, 9 Jun 2025 22:20:53 GMT
Subject: RFR: 8357471: GenShen: Share collector reserves between young and
 old [v3]
In-Reply-To: <ymVpMrOFM1IwZnr-rycrifWPhzhLu5-zMpCL5z48ZDs=.61bdc3f1-d744-4686-a247-4c8d99e014d0@github.com>
References: <ymVpMrOFM1IwZnr-rycrifWPhzhLu5-zMpCL5z48ZDs=.61bdc3f1-d744-4686-a247-4c8d99e014d0@github.com>
Message-ID: <oi5MtBcJNw6Og2K67C-_Pewmh91GBqp_K2aBWemPsQ0=.da5b47a3-5a3d-4a47-bdc3-1427aeb17ef3@github.com>

> Genshen independently reserves memory to hold evacuations into young and old generations.  We have found that under duress, it is sometimes difficult for mixed evacuations to make progress because the reserves in old are too small and we cannot expand old because young is running so frequently that it does not have the excess memory required to justify expansion of old (and shrinking of young).
> 
> This PR exploits the fact that the reserves in young are often much larger than young requires to carry out its anticipated next GC cycle.  In this case, we can share the young collector reserves with the old generation.  This allows much more effective operation of mixed evacuations when GC is running at or near its full capacity.
> 
> The following spreadsheet snapshots highlight the benefits of this change.  In control with 6G heap size, we perform large numbers of mixed evacuations, but each mixed evacuation has very low productivity (e.g. one region at a time).  This causes excessive delays in reclaiming the garbage from old, which is required to shrink old and expand young.  This is why we see the large number of unproductive GC cycles, many of which degenerate and a few of which upgrade to full GC.  In the experiment with 6G heap size, there are far fewer mixed cycles, but they are each much more productive.  The total number of GC cycles decreases significantly.
> 
> ![image](https://github.com/user-attachments/assets/782f7285-2b26-4f3b-ba3e-58465abb2c3a)
> 
> With 7G heap size, the benefits of this PR manifest as a decrease in mixed evacuations, which also allows us to decrease total GC cycles.  By more quickly reclaiming old garbage, we are able to more quickly expand young, which decreases the number of young GC cycles.  This reduces CPU load.  The impact on response times is not as significant as with the 6G heap size.  We see slight improvement at p50-p99.9, with slight degradation at p99.99 through p100.
> 
> ![image](https://github.com/user-attachments/assets/54fb5eae-2ae8-4679-ac78-c88bc5c16c2f)
> 
> At 8G heap size, the GC is not at all stressed.  We see approximately the same numbers of GC cycles, slight degradation of response times at p50-p99, slight improvement in response times at p99.9-p100.
> 
> ![image](https://github.com/user-attachments/assets/50a48564-7f32-4c48-80e9-78e9a3a3d63c)
> 
> The command line for these comparisons follows:
> 
> 
>             ~/github/jdk.share-collector-reserves/build/linux-x86_64-server-release/images/jdk/bin/java \
>                 -XX:+Unlock...

Kelvin Nilsen has updated the pull request incrementally with one additional commit since the last revision:

  Fix assert_bounds() assertions when old_trash_not_in_bounds

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25357/files
  - new: https://git.openjdk.org/jdk/pull/25357/files/ae8c83c9..8ec6ea06

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25357&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25357&range=01-02

  Stats: 48 lines in 3 files changed: 32 ins; 2 del; 14 mod
  Patch: https://git.openjdk.org/jdk/pull/25357.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25357/head:pull/25357

PR: https://git.openjdk.org/jdk/pull/25357

From duke at openjdk.org  Tue Jun 10 13:36:50 2025
From: duke at openjdk.org (Jonas Norlinder)
Date: Tue, 10 Jun 2025 13:36:50 GMT
Subject: RFR: 8359110: Log accumulated GC and process CPU time upon VM exit
Message-ID: <dJ1wtrK-AzIRBUUEKh44iP4UsWuR8a2x0fRiPlVXr30=.6cbaa927-879e-4e0e-8bd8-ac5eed26ed52@github.com>

Add support to log CPU cost for GC during VM exit with `-Xlog:gc`.

-------------

Commit messages:
 - Measure GC vtime on VM exit

Changes: https://git.openjdk.org/jdk/pull/25724/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25724&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8359110
  Stats: 178 lines in 15 files changed: 178 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/25724.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25724/head:pull/25724

PR: https://git.openjdk.org/jdk/pull/25724

From roland at openjdk.org  Tue Jun 10 14:20:14 2025
From: roland at openjdk.org (Roland Westrelin)
Date: Tue, 10 Jun 2025 14:20:14 GMT
Subject: RFR: 8358334: C2/Shenandoah: incorrect execution with Unsafe
Message-ID: <unH3_Dq0hn0MMIDtaPXhWtHErOKanNHyRKdUwCkZ0K8=.349734d3-7333-4cca-8a9a-86dc540fdaac@github.com>

When a barrier is expanded, some control is picked as a location for
the barrier. The control input of data nodes that depend on that
control are updated so the nodes are after the expanded barrier unless
the barrier itself depends on some of those nodes.

In this particular failure, a raw memoy `Store` is the input memory to
the barrier. That `Store` has an anti-dependent `Load`. All 3 nodes
(barrier, `Load` and `Store`) are at the same control. The `Store` is
an input to the barrier so it stays before the barrier. The `Load`'s
control is updated to be after the barrier which breaks the
anti-dependency. The bug is that the logic that sorts nodes that need
to be before the barrier and those that can be after ignores
anti-dependencies. The fix simply extends that logic to take them into
account.

-------------

Commit messages:
 - whitespaces
 - fix & test

Changes: https://git.openjdk.org/jdk/pull/25729/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25729&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8358334
  Stats: 153 lines in 3 files changed: 117 ins; 26 del; 10 mod
  Patch: https://git.openjdk.org/jdk/pull/25729.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25729/head:pull/25729

PR: https://git.openjdk.org/jdk/pull/25729

From wkemper at openjdk.org  Tue Jun 10 20:20:01 2025
From: wkemper at openjdk.org (William Kemper)
Date: Tue, 10 Jun 2025 20:20:01 GMT
Subject: RFR: 8357976: GenShen crash in swap_card_tables: Should be clean
Message-ID: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>

Degenerated cycles must also clean the `read` card table before swapping it with the `write` card table.

-------------

Commit messages:
 - Merge remote-tracking branch 'jdk/master' into clean-read-table-for-degen
 - Clean the read table before swapping during a degenerated cycle

Changes: https://git.openjdk.org/jdk/pull/25735/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25735&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8357976
  Stats: 17 lines in 2 files changed: 10 ins; 4 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/25735.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25735/head:pull/25735

PR: https://git.openjdk.org/jdk/pull/25735

From xpeng at openjdk.org  Tue Jun 10 20:31:28 2025
From: xpeng at openjdk.org (Xiaolong Peng)
Date: Tue, 10 Jun 2025 20:31:28 GMT
Subject: RFR: 8357976: GenShen crash in swap_card_tables: Should be clean
In-Reply-To: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
References: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
Message-ID: <x1g1sCNWi31Yjz4Lkqtrzq9xkpA0YMC_URsc5M12e34=.8ec6a5a2-e398-474b-9861-a2eb33805cb8@github.com>

On Tue, 10 Jun 2025 20:14:49 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Degenerated cycles must also clean the `read` card table before swapping it with the `write` card table.

src/hotspot/share/gc/shenandoah/shenandoahConcurrentGC.cpp line 646:

> 644:   if (heap->mode()->is_generational()) {
> 645:     heap->old_generation()->card_scan()->mark_read_table_as_clean();
> 646:   }

I guess swap_card_tables has to be done at safe-point, otherwise we can move this to the place right before swap_card_tables is called in `op_init_mark`

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/25735#discussion_r2138715859

From kdnilsen at openjdk.org  Tue Jun 10 20:47:26 2025
From: kdnilsen at openjdk.org (Kelvin Nilsen)
Date: Tue, 10 Jun 2025 20:47:26 GMT
Subject: RFR: 8357976: GenShen crash in swap_card_tables: Should be clean
In-Reply-To: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
References: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
Message-ID: <qpG90qAha_A-xAIdmZ5At8HzqgQQ7nN5PAs9QWu3ZNo=.43a6d13d-8742-47d4-82a4-5b0920d4b0a8@github.com>

On Tue, 10 Jun 2025 20:14:49 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Degenerated cycles must also clean the `read` card table before swapping it with the `write` card table.

Thanks.  LGTM

-------------

Marked as reviewed by kdnilsen (Committer).

PR Review: https://git.openjdk.org/jdk/pull/25735#pullrequestreview-2914990916

From xpeng at openjdk.org  Tue Jun 10 21:13:31 2025
From: xpeng at openjdk.org (Xiaolong Peng)
Date: Tue, 10 Jun 2025 21:13:31 GMT
Subject: RFR: 8357976: GenShen crash in swap_card_tables: Should be clean
In-Reply-To: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
References: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
Message-ID: <j9NENeT27H5NautAdS8yUQ-7TgB7c0QS_l8Ftfdw8e4=.0d8c3663-0e2a-49ea-92d0-537fbccdf968@github.com>

On Tue, 10 Jun 2025 20:14:49 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Degenerated cycles must also clean the `read` card table before swapping it with the `write` card table.

src/hotspot/share/gc/shenandoah/shenandoahDegeneratedGC.cpp line 142:

> 140:         // Clean the read table before swapping it. The end goal here is to have a clean
> 141:         // write table, and to have the read table updated with the previous write table.
> 142:         heap->old_generation()->card_scan()->mark_read_table_as_clean();

Should we clean only when _generation is young, given we swap card tables when _generation is young?

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/25735#discussion_r2138774860

From cslucas at openjdk.org  Tue Jun 10 23:05:27 2025
From: cslucas at openjdk.org (Cesar Soares Lucas)
Date: Tue, 10 Jun 2025 23:05:27 GMT
Subject: RFR: 8357976: GenShen crash in swap_card_tables: Should be clean
In-Reply-To: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
References: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
Message-ID: <B1lPiP_YsHcrEDNZNPTlG-PDgBmx_q1lssjoa0U2H7Y=.512c0e73-b2ee-4521-837d-6d5666c7155f@github.com>

On Tue, 10 Jun 2025 20:14:49 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Degenerated cycles must also clean the `read` card table before swapping it with the `write` card table.

Marked as reviewed by cslucas (Committer).

-------------

PR Review: https://git.openjdk.org/jdk/pull/25735#pullrequestreview-2915227439

From ysr at openjdk.org  Tue Jun 10 23:33:27 2025
From: ysr at openjdk.org (Y. Srinivas Ramakrishna)
Date: Tue, 10 Jun 2025 23:33:27 GMT
Subject: RFR: 8357976: GenShen crash in swap_card_tables: Should be clean
In-Reply-To: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
References: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
Message-ID: <E37h4N1yyGNE4zBaw9h5TKlEDMiyUPnv3dBTyIdXilw=.72fb33fb-1955-4d0a-b802-f90a403dd3dc@github.com>

On Tue, 10 Jun 2025 20:14:49 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Degenerated cycles must also clean the `read` card table before swapping it with the `write` card table.

Suggest moving the reset to a more consolidated natural point rather than piecemeal as done in this solution.

-------------

Changes requested by ysr (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25735#pullrequestreview-2915255444

From ysr at openjdk.org  Tue Jun 10 23:33:28 2025
From: ysr at openjdk.org (Y. Srinivas Ramakrishna)
Date: Tue, 10 Jun 2025 23:33:28 GMT
Subject: RFR: 8357976: GenShen crash in swap_card_tables: Should be clean
In-Reply-To: <x1g1sCNWi31Yjz4Lkqtrzq9xkpA0YMC_URsc5M12e34=.8ec6a5a2-e398-474b-9861-a2eb33805cb8@github.com>
References: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
 <x1g1sCNWi31Yjz4Lkqtrzq9xkpA0YMC_URsc5M12e34=.8ec6a5a2-e398-474b-9861-a2eb33805cb8@github.com>
Message-ID: <I7WcLC8JQ6CrAJFzdhDUVGqhaYnZ620slP6Kmrc1pYw=.b3fcaf42-7bad-44e2-8683-fd2af503fe29@github.com>

On Tue, 10 Jun 2025 20:28:21 GMT, Xiaolong Peng <xpeng at openjdk.org> wrote:

>> Degenerated cycles must also clean the `read` card table before swapping it with the `write` card table.
>
> src/hotspot/share/gc/shenandoah/shenandoahConcurrentGC.cpp line 646:
> 
>> 644:   if (heap->mode()->is_generational()) {
>> 645:     heap->old_generation()->card_scan()->mark_read_table_as_clean();
>> 646:   }
> 
> I guess swap_card_tables has to be done at safe-point, otherwise we can move this to the place right before swap_card_tables is called in `op_init_mark`

To the point that Xiaolong is making in his other comment, I think we can move this cleaning into the `prepare_gc()` for the young generation which would be called above.

Similarly, see my comment at the other place in degen collection, we'd have the prepare_gc() in the op_reset() clear the rad table along that path.

I think that is the right place to do this resetting as we "prepare" the generation for a future collection at the conclusion of this one.

> src/hotspot/share/gc/shenandoah/shenandoahDegeneratedGC.cpp line 142:
> 
>> 140:         // Clean the read table before swapping it. The end goal here is to have a clean
>> 141:         // write table, and to have the read table updated with the previous write table.
>> 142:         heap->old_generation()->card_scan()->mark_read_table_as_clean();
> 
> Should we clean only when _generation is young, given we swap card tables when _generation is young?

If we started out with a clean read table, each concurrent gc cleaned the read table after it completed, then if we degenerate outside a cycle, we should find the read table clean already. 

Unless I am missing something, we should be able to assert here that the read table is clean (which the swap already does). Do we need the reset?

It would seem that in the event that we degenerated within a concurrent cycle then we may not have done the reset and that's where we'd need to do an explicit reset further below where we call `op_reset()` which then calls `prepare_gc()` on the generation that was subject to this collection cycle, addressing the point that Xiaolong makes. See my comment in the other file as well.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/25735#discussion_r2138918518
PR Review Comment: https://git.openjdk.org/jdk/pull/25735#discussion_r2138919561

From cslucas at openjdk.org  Wed Jun 11 00:20:28 2025
From: cslucas at openjdk.org (Cesar Soares Lucas)
Date: Wed, 11 Jun 2025 00:20:28 GMT
Subject: RFR: 8358334: C2/Shenandoah: incorrect execution with Unsafe
In-Reply-To: <unH3_Dq0hn0MMIDtaPXhWtHErOKanNHyRKdUwCkZ0K8=.349734d3-7333-4cca-8a9a-86dc540fdaac@github.com>
References: <unH3_Dq0hn0MMIDtaPXhWtHErOKanNHyRKdUwCkZ0K8=.349734d3-7333-4cca-8a9a-86dc540fdaac@github.com>
Message-ID: <7ZHTFi99uOLv_qY4m0bsX8UY9uP2J0NGpfMl6uLcsTE=.0c34fe48-5ee8-407c-b51c-1290099b6761@github.com>

On Tue, 10 Jun 2025 14:13:21 GMT, Roland Westrelin <roland at openjdk.org> wrote:

> When a barrier is expanded, some control is picked as a location for
> the barrier. The control input of data nodes that depend on that
> control are updated so the nodes are after the expanded barrier unless
> the barrier itself depends on some of those nodes.
> 
> In this particular failure, a raw memoy `Store` is the input memory to
> the barrier. That `Store` has an anti-dependent `Load`. All 3 nodes
> (barrier, `Load` and `Store`) are at the same control. The `Store` is
> an input to the barrier so it stays before the barrier. The `Load`'s
> control is updated to be after the barrier which breaks the
> anti-dependency. The bug is that the logic that sorts nodes that need
> to be before the barrier and those that can be after ignores
> anti-dependencies. The fix simply extends that logic to take them into
> account.

LGTM. Thanks.

-------------

PR Review: https://git.openjdk.org/jdk/pull/25729#pullrequestreview-2915306013

From wkemper at openjdk.org  Wed Jun 11 18:38:29 2025
From: wkemper at openjdk.org (William Kemper)
Date: Wed, 11 Jun 2025 18:38:29 GMT
Subject: RFR: 8358334: C2/Shenandoah: incorrect execution with Unsafe
In-Reply-To: <unH3_Dq0hn0MMIDtaPXhWtHErOKanNHyRKdUwCkZ0K8=.349734d3-7333-4cca-8a9a-86dc540fdaac@github.com>
References: <unH3_Dq0hn0MMIDtaPXhWtHErOKanNHyRKdUwCkZ0K8=.349734d3-7333-4cca-8a9a-86dc540fdaac@github.com>
Message-ID: <_vTHjSU4jSzcb7EgFzGOk3Tp_uRff502Tfb_JViarl0=.08d55130-b250-4476-8805-8c114f940248@github.com>

On Tue, 10 Jun 2025 14:13:21 GMT, Roland Westrelin <roland at openjdk.org> wrote:

> When a barrier is expanded, some control is picked as a location for
> the barrier. The control input of data nodes that depend on that
> control are updated so the nodes are after the expanded barrier unless
> the barrier itself depends on some of those nodes.
> 
> In this particular failure, a raw memoy `Store` is the input memory to
> the barrier. That `Store` has an anti-dependent `Load`. All 3 nodes
> (barrier, `Load` and `Store`) are at the same control. The `Store` is
> an input to the barrier so it stays before the barrier. The `Load`'s
> control is updated to be after the barrier which breaks the
> anti-dependency. The bug is that the logic that sorts nodes that need
> to be before the barrier and those that can be after ignores
> anti-dependencies. The fix simply extends that logic to take them into
> account.

Thank you for this!

-------------

Marked as reviewed by wkemper (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25729#pullrequestreview-2918306489

From shade at openjdk.org  Wed Jun 11 19:09:28 2025
From: shade at openjdk.org (Aleksey Shipilev)
Date: Wed, 11 Jun 2025 19:09:28 GMT
Subject: RFR: 8358334: C2/Shenandoah: incorrect execution with Unsafe
In-Reply-To: <unH3_Dq0hn0MMIDtaPXhWtHErOKanNHyRKdUwCkZ0K8=.349734d3-7333-4cca-8a9a-86dc540fdaac@github.com>
References: <unH3_Dq0hn0MMIDtaPXhWtHErOKanNHyRKdUwCkZ0K8=.349734d3-7333-4cca-8a9a-86dc540fdaac@github.com>
Message-ID: <iolS4jqoi_iJva15cDlpqb60Ud-a8MVaenSnSH7OnKE=.26785954-ee7e-4447-bc7b-8cdd41b8acf7@github.com>

On Tue, 10 Jun 2025 14:13:21 GMT, Roland Westrelin <roland at openjdk.org> wrote:

> When a barrier is expanded, some control is picked as a location for
> the barrier. The control input of data nodes that depend on that
> control are updated so the nodes are after the expanded barrier unless
> the barrier itself depends on some of those nodes.
> 
> In this particular failure, a raw memoy `Store` is the input memory to
> the barrier. That `Store` has an anti-dependent `Load`. All 3 nodes
> (barrier, `Load` and `Store`) are at the same control. The `Store` is
> an input to the barrier so it stays before the barrier. The `Load`'s
> control is updated to be after the barrier which breaks the
> anti-dependency. The bug is that the logic that sorts nodes that need
> to be before the barrier and those that can be after ignores
> anti-dependencies. The fix simply extends that logic to take them into
> account.

The patch makes sense.

I ran `make test TEST=all TEST_VM_OPTS=-XX:+UseShenandoahGC` without new failures.

-------------

Marked as reviewed by shade (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25729#pullrequestreview-2918386137

From dlong at openjdk.org  Thu Jun 12 01:56:34 2025
From: dlong at openjdk.org (Dean Long)
Date: Thu, 12 Jun 2025 01:56:34 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead
Message-ID: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>

This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.

We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.

The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.

For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.

This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.

-------------

Commit messages:
 - cleanup
 - wip

Changes: https://git.openjdk.org/jdk/pull/25764/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25764&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8358821
  Stats: 251 lines in 19 files changed: 90 ins; 131 del; 30 mod
  Patch: https://git.openjdk.org/jdk/pull/25764.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25764/head:pull/25764

PR: https://git.openjdk.org/jdk/pull/25764

From dlong at openjdk.org  Thu Jun 12 02:01:47 2025
From: dlong at openjdk.org (Dean Long)
Date: Thu, 12 Jun 2025 02:01:47 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v2]
In-Reply-To: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
Message-ID: <8oM2Y0kAMRN6wxtjAmpXDWTcHDZ6gPrNM-8PPtukwAA=.dde201dd-8c2a-4a16-96e5-ca92604e6edd@github.com>

> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
> 
> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
> 
> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
> 
> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
> 
> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.

Dean Long has updated the pull request incrementally with two additional commits since the last revision:

 - ... and stale code
 - removed stale comment

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25764/files
  - new: https://git.openjdk.org/jdk/pull/25764/files/b20fb26f..0780d156

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25764&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25764&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 2 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/25764.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25764/head:pull/25764

PR: https://git.openjdk.org/jdk/pull/25764

From duke at openjdk.org  Thu Jun 12 11:28:35 2025
From: duke at openjdk.org (Jonas Norlinder)
Date: Thu, 12 Jun 2025 11:28:35 GMT
Subject: Withdrawn: 8359110: Log accumulated GC and process CPU time upon VM
 exit
In-Reply-To: <dJ1wtrK-AzIRBUUEKh44iP4UsWuR8a2x0fRiPlVXr30=.6cbaa927-879e-4e0e-8bd8-ac5eed26ed52@github.com>
References: <dJ1wtrK-AzIRBUUEKh44iP4UsWuR8a2x0fRiPlVXr30=.6cbaa927-879e-4e0e-8bd8-ac5eed26ed52@github.com>
Message-ID: <24ib50kFQIUcwJ1BlMmQPdDDZI2wDSV0aHdR1_ratQE=.7c283605-89a7-491b-802b-86958b78e801@github.com>

On Tue, 10 Jun 2025 13:24:37 GMT, Jonas Norlinder <duke at openjdk.org> wrote:

> Add support to log CPU cost for GC during VM exit with `-Xlog:gc`.
> 
> 
> [1.500s][info ][gc] GC CPU cost: 1.75%
> 
> 
> Additionally, detailed information may be retrieved with `-Xlog:gc=trace`
> 
> 
> [1.500s][trace][gc] Process CPU time: 4.945370s
> [1.500s][trace][gc] GC CPU time: 0.086382s
> [1.500s][info ][gc] GC CPU cost: 1.75%

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/jdk/pull/25724

From mdoerr at openjdk.org  Thu Jun 12 12:53:31 2025
From: mdoerr at openjdk.org (Martin Doerr)
Date: Thu, 12 Jun 2025 12:53:31 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v2]
In-Reply-To: <8oM2Y0kAMRN6wxtjAmpXDWTcHDZ6gPrNM-8PPtukwAA=.dde201dd-8c2a-4a16-96e5-ca92604e6edd@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <8oM2Y0kAMRN6wxtjAmpXDWTcHDZ6gPrNM-8PPtukwAA=.dde201dd-8c2a-4a16-96e5-ca92604e6edd@github.com>
Message-ID: <RxFOQmRFDnrOUb9TbplJl1e_EjK4cLwb-YDTJbywGVA=.be50fd6c-66f3-4874-90e5-5f3e56f5e851@github.com>

On Thu, 12 Jun 2025 02:01:47 GMT, Dean Long <dlong at openjdk.org> wrote:

>> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
>> 
>> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
>> 
>> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
>> 
>> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
>> 
>> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.
>
> Dean Long has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - ... and stale code
>  - removed stale comment

I appreciate this PR. I like using the nmethod entry barrier and getting rid of not-entrant patching.
I have some change requests. In addition, we can get rid of much more code. I've put my proposal in a Commit: https://github.com/TheRealMDoerr/jdk/commit/4aed569dc353c254a2f4de2d387208a0a1323990
Please take a look!

src/hotspot/share/gc/shared/barrierSetNMethod.cpp line 246:

> 244:   ConditionalMutexLocker ml(NMethodEntryBarrier_lock, !NMethodEntryBarrier_lock->owned_by_self(), Mutex::_no_safepoint_check_flag);
> 245:   int value = guard_value(nm) | not_entrant;
> 246:   set_guard_value(nm, value);

Same here.

src/hotspot/share/gc/shenandoah/shenandoahCodeRoots.cpp line 153:

> 151:         // Code cache unloading needs to know about on-stack nmethods. Arm the nmethods to get
> 152:         // mark_as_maybe_on_stack() callbacks when they are used again.
> 153:         _bs->arm(nm);

This breaks the Shenandoah build. `arm` is private.

src/hotspot/share/gc/z/zBarrierSetNMethod.cpp line 116:

> 114:     value |= not_entrant;
> 115:   }
> 116:   set_guard_value(nm, value);

We can avoid redundant patching since we have the lock: Only update if the value is not already there. This happens quite often.

-------------

Changes requested by mdoerr (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25764#pullrequestreview-2920990811
PR Review Comment: https://git.openjdk.org/jdk/pull/25764#discussion_r2142655962
PR Review Comment: https://git.openjdk.org/jdk/pull/25764#discussion_r2142641974
PR Review Comment: https://git.openjdk.org/jdk/pull/25764#discussion_r2142654627

From wkemper at openjdk.org  Thu Jun 12 14:29:06 2025
From: wkemper at openjdk.org (William Kemper)
Date: Thu, 12 Jun 2025 14:29:06 GMT
Subject: RFR: Merge openjdk/jdk21u:master
Message-ID: <xQRlJ86Lxh3cX3CXZjYJS6nAfTccQaEt7wp8eJTI6mY=.894785cf-c8c5-4ed6-80db-001527d2f4b6@github.com>

Merges tag jdk-21.0.8+6

-------------

Commit messages:
 - 8357105: C2: compilation fails with "assert(false) failed: empty program detected during loop optimization"

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk21u/pull/198/files
  Stats: 66 lines in 2 files changed: 64 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/shenandoah-jdk21u/pull/198.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk21u.git pull/198/head:pull/198

PR: https://git.openjdk.org/shenandoah-jdk21u/pull/198

From roland at openjdk.org  Thu Jun 12 15:05:35 2025
From: roland at openjdk.org (Roland Westrelin)
Date: Thu, 12 Jun 2025 15:05:35 GMT
Subject: RFR: 8358334: C2/Shenandoah: incorrect execution with Unsafe
In-Reply-To: <7ZHTFi99uOLv_qY4m0bsX8UY9uP2J0NGpfMl6uLcsTE=.0c34fe48-5ee8-407c-b51c-1290099b6761@github.com>
References: <unH3_Dq0hn0MMIDtaPXhWtHErOKanNHyRKdUwCkZ0K8=.349734d3-7333-4cca-8a9a-86dc540fdaac@github.com>
 <7ZHTFi99uOLv_qY4m0bsX8UY9uP2J0NGpfMl6uLcsTE=.0c34fe48-5ee8-407c-b51c-1290099b6761@github.com>
Message-ID: <ajv0eFxFECFbMapA48hifYPt-KdSp9JcVpB9-apiBgc=.52258a06-3e8a-46c1-b46a-401e6ca08051@github.com>

On Wed, 11 Jun 2025 00:18:09 GMT, Cesar Soares Lucas <cslucas at openjdk.org> wrote:

>> When a barrier is expanded, some control is picked as a location for
>> the barrier. The control input of data nodes that depend on that
>> control are updated so the nodes are after the expanded barrier unless
>> the barrier itself depends on some of those nodes.
>> 
>> In this particular failure, a raw memoy `Store` is the input memory to
>> the barrier. That `Store` has an anti-dependent `Load`. All 3 nodes
>> (barrier, `Load` and `Store`) are at the same control. The `Store` is
>> an input to the barrier so it stays before the barrier. The `Load`'s
>> control is updated to be after the barrier which breaks the
>> anti-dependency. The bug is that the logic that sorts nodes that need
>> to be before the barrier and those that can be after ignores
>> anti-dependencies. The fix simply extends that logic to take them into
>> account.
>
> LGTM. Thanks.

@JohnTortugo @earthling-amzn @shipilev thanks for the reviews and testing.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25729#issuecomment-2967202208

From roland at openjdk.org  Thu Jun 12 15:05:36 2025
From: roland at openjdk.org (Roland Westrelin)
Date: Thu, 12 Jun 2025 15:05:36 GMT
Subject: Integrated: 8358334: C2/Shenandoah: incorrect execution with Unsafe
In-Reply-To: <unH3_Dq0hn0MMIDtaPXhWtHErOKanNHyRKdUwCkZ0K8=.349734d3-7333-4cca-8a9a-86dc540fdaac@github.com>
References: <unH3_Dq0hn0MMIDtaPXhWtHErOKanNHyRKdUwCkZ0K8=.349734d3-7333-4cca-8a9a-86dc540fdaac@github.com>
Message-ID: <-a0YpfCwzfGZ3VG1Pqgc6c_L1tk4-DPConFxZUu4Mr0=.dbef3b3e-f6b8-448a-b9de-d1b959acee33@github.com>

On Tue, 10 Jun 2025 14:13:21 GMT, Roland Westrelin <roland at openjdk.org> wrote:

> When a barrier is expanded, some control is picked as a location for
> the barrier. The control input of data nodes that depend on that
> control are updated so the nodes are after the expanded barrier unless
> the barrier itself depends on some of those nodes.
> 
> In this particular failure, a raw memoy `Store` is the input memory to
> the barrier. That `Store` has an anti-dependent `Load`. All 3 nodes
> (barrier, `Load` and `Store`) are at the same control. The `Store` is
> an input to the barrier so it stays before the barrier. The `Load`'s
> control is updated to be after the barrier which breaks the
> anti-dependency. The bug is that the logic that sorts nodes that need
> to be before the barrier and those that can be after ignores
> anti-dependencies. The fix simply extends that logic to take them into
> account.

This pull request has now been integrated.

Changeset: 1fcede05
Author:    Roland Westrelin <roland at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/1fcede053cca360c96606c1034b2a365a4fada82
Stats:     153 lines in 3 files changed: 117 ins; 26 del; 10 mod

8358334: C2/Shenandoah: incorrect execution with Unsafe

Reviewed-by: wkemper, shade

-------------

PR: https://git.openjdk.org/jdk/pull/25729

From wkemper at openjdk.org  Thu Jun 12 18:52:50 2025
From: wkemper at openjdk.org (William Kemper)
Date: Thu, 12 Jun 2025 18:52:50 GMT
Subject: RFR: 8357976: GenShen crash in swap_card_tables: Should be clean
 [v2]
In-Reply-To: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
References: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
Message-ID: <-hSDnHAfYEBYrD639Gd-a7jNOFOlA-XVOEvZqypyzyk=.c64ccff0-b13b-4a5e-b81a-0c1966f32f8e@github.com>

> Degenerated cycles must also clean the `read` card table before swapping it with the `write` card table.

William Kemper has updated the pull request incrementally with one additional commit since the last revision:

  Consolidate read table cleaning

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25735/files
  - new: https://git.openjdk.org/jdk/pull/25735/files/5e2c20a8..9552021c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25735&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25735&range=00-01

  Stats: 20 lines in 3 files changed: 5 ins; 10 del; 5 mod
  Patch: https://git.openjdk.org/jdk/pull/25735.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25735/head:pull/25735

PR: https://git.openjdk.org/jdk/pull/25735

From dlong at openjdk.org  Thu Jun 12 19:54:45 2025
From: dlong at openjdk.org (Dean Long)
Date: Thu, 12 Jun 2025 19:54:45 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v3]
In-Reply-To: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
Message-ID: <cXYQYfOLGgpJUJXn_mfH0sFsyhUHzUlOa7kCZD5sA4A=.537b7c84-4fb4-4c59-b125-d876a50449cf@github.com>

> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
> 
> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
> 
> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
> 
> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
> 
> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.

Dean Long has updated the pull request incrementally with six additional commits since the last revision:

 - more cleanup
 - more TheRealMDoerr suggestions
 - TheRealMDoerr suggestions
 - remove trailing space
 - Fix Shenandoah build
 - more cleanup

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25764/files
  - new: https://git.openjdk.org/jdk/pull/25764/files/0780d156..0950fc5e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25764&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25764&range=01-02

  Stats: 330 lines in 25 files changed: 10 ins; 304 del; 16 mod
  Patch: https://git.openjdk.org/jdk/pull/25764.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25764/head:pull/25764

PR: https://git.openjdk.org/jdk/pull/25764

From dlong at openjdk.org  Thu Jun 12 19:57:28 2025
From: dlong at openjdk.org (Dean Long)
Date: Thu, 12 Jun 2025 19:57:28 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v2]
In-Reply-To: <8oM2Y0kAMRN6wxtjAmpXDWTcHDZ6gPrNM-8PPtukwAA=.dde201dd-8c2a-4a16-96e5-ca92604e6edd@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <8oM2Y0kAMRN6wxtjAmpXDWTcHDZ6gPrNM-8PPtukwAA=.dde201dd-8c2a-4a16-96e5-ca92604e6edd@github.com>
Message-ID: <QmK2HAht4vFeChrAEcBdGS0s3eZFRS2VUPs34gcNO10=.f6aa2937-81e6-482c-9ef2-d83859fe2e39@github.com>

On Thu, 12 Jun 2025 02:01:47 GMT, Dean Long <dlong at openjdk.org> wrote:

>> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
>> 
>> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
>> 
>> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
>> 
>> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
>> 
>> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.
>
> Dean Long has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - ... and stale code
>  - removed stale comment

Thanks @TheRealMDoer for the suggestions, I incorporated all of them, however for shenandoahCodeRoots.cpp I decided to make arm() public, so the caller code doesn't need to know about the magic value 0.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25764#issuecomment-2967999465

From mdoerr at openjdk.org  Thu Jun 12 20:08:31 2025
From: mdoerr at openjdk.org (Martin Doerr)
Date: Thu, 12 Jun 2025 20:08:31 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v2]
In-Reply-To: <QmK2HAht4vFeChrAEcBdGS0s3eZFRS2VUPs34gcNO10=.f6aa2937-81e6-482c-9ef2-d83859fe2e39@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <8oM2Y0kAMRN6wxtjAmpXDWTcHDZ6gPrNM-8PPtukwAA=.dde201dd-8c2a-4a16-96e5-ca92604e6edd@github.com>
 <QmK2HAht4vFeChrAEcBdGS0s3eZFRS2VUPs34gcNO10=.f6aa2937-81e6-482c-9ef2-d83859fe2e39@github.com>
Message-ID: <15r53QUpAANeu3oucJCrmg3BOqTksEQK24cppfHjQow=.b5848d6f-0bfe-43ce-a4d8-29d57d91e873@github.com>

On Thu, 12 Jun 2025 19:54:28 GMT, Dean Long <dlong at openjdk.org> wrote:

> Thanks @TheRealMDoer for the suggestions, I incorporated all of them, however for shenandoahCodeRoots.cpp I decided to make arm() public, so the caller code doesn't need to know about the magic value 0.

Excellent! Thank you! I'll take another look over it and run tests.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25764#issuecomment-2968024418

From kdnilsen at openjdk.org  Thu Jun 12 20:12:50 2025
From: kdnilsen at openjdk.org (Kelvin Nilsen)
Date: Thu, 12 Jun 2025 20:12:50 GMT
Subject: RFR: 8357471: GenShen: Share collector reserves between young and
 old [v4]
In-Reply-To: <ymVpMrOFM1IwZnr-rycrifWPhzhLu5-zMpCL5z48ZDs=.61bdc3f1-d744-4686-a247-4c8d99e014d0@github.com>
References: <ymVpMrOFM1IwZnr-rycrifWPhzhLu5-zMpCL5z48ZDs=.61bdc3f1-d744-4686-a247-4c8d99e014d0@github.com>
Message-ID: <V5AHTUiMKriw_-4VySEn8r5jirj7WNEgCOtUwNjzizM=.8e4134f5-526e-4f32-9cc9-8a462dd698f3@github.com>

> Genshen independently reserves memory to hold evacuations into young and old generations.  We have found that under duress, it is sometimes difficult for mixed evacuations to make progress because the reserves in old are too small and we cannot expand old because young is running so frequently that it does not have the excess memory required to justify expansion of old (and shrinking of young).
> 
> This PR exploits the fact that the reserves in young are often much larger than young requires to carry out its anticipated next GC cycle.  In this case, we can share the young collector reserves with the old generation.  This allows much more effective operation of mixed evacuations when GC is running at or near its full capacity.
> 
> The following spreadsheet snapshots highlight the benefits of this change.  In control with 6G heap size, we perform large numbers of mixed evacuations, but each mixed evacuation has very low productivity (e.g. one region at a time).  This causes excessive delays in reclaiming the garbage from old, which is required to shrink old and expand young.  This is why we see the large number of unproductive GC cycles, many of which degenerate and a few of which upgrade to full GC.  In the experiment with 6G heap size, there are far fewer mixed cycles, but they are each much more productive.  The total number of GC cycles decreases significantly.
> 
> ![image](https://github.com/user-attachments/assets/782f7285-2b26-4f3b-ba3e-58465abb2c3a)
> 
> With 7G heap size, the benefits of this PR manifest as a decrease in mixed evacuations, which also allows us to decrease total GC cycles.  By more quickly reclaiming old garbage, we are able to more quickly expand young, which decreases the number of young GC cycles.  This reduces CPU load.  The impact on response times is not as significant as with the 6G heap size.  We see slight improvement at p50-p99.9, with slight degradation at p99.99 through p100.
> 
> ![image](https://github.com/user-attachments/assets/54fb5eae-2ae8-4679-ac78-c88bc5c16c2f)
> 
> At 8G heap size, the GC is not at all stressed.  We see approximately the same numbers of GC cycles, slight degradation of response times at p50-p99, slight improvement in response times at p99.9-p100.
> 
> ![image](https://github.com/user-attachments/assets/50a48564-7f32-4c48-80e9-78e9a3a3d63c)
> 
> The command line for these comparisons follows:
> 
> 
>             ~/github/jdk.share-collector-reserves/build/linux-x86_64-server-release/images/jdk/bin/java \
>                 -XX:+Unlock...

Kelvin Nilsen has updated the pull request incrementally with one additional commit since the last revision:

  fix whitespace

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25357/files
  - new: https://git.openjdk.org/jdk/pull/25357/files/8ec6ea06..aea2b925

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25357&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25357&range=02-03

  Stats: 2 lines in 2 files changed: 0 ins; 1 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/25357.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25357/head:pull/25357

PR: https://git.openjdk.org/jdk/pull/25357

From wkemper at openjdk.org  Thu Jun 12 20:42:03 2025
From: wkemper at openjdk.org (William Kemper)
Date: Thu, 12 Jun 2025 20:42:03 GMT
Subject: RFR: Merge openjdk/jdk21u:master [v2]
In-Reply-To: <xQRlJ86Lxh3cX3CXZjYJS6nAfTccQaEt7wp8eJTI6mY=.894785cf-c8c5-4ed6-80db-001527d2f4b6@github.com>
References: <xQRlJ86Lxh3cX3CXZjYJS6nAfTccQaEt7wp8eJTI6mY=.894785cf-c8c5-4ed6-80db-001527d2f4b6@github.com>
Message-ID: <rJIyMCNc7IO6f6SLKxPpik8LapEAPV0nr5ep5OE_XSY=.711cd491-992b-4a46-958a-2f3df7f5c267@github.com>

> Merges tag jdk-21.0.8+6

William Kemper has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk21u/pull/198/files
  - new: https://git.openjdk.org/shenandoah-jdk21u/pull/198/files/e62f2f4f..e62f2f4f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk21u&pr=198&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk21u&pr=198&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk21u/pull/198.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk21u.git pull/198/head:pull/198

PR: https://git.openjdk.org/shenandoah-jdk21u/pull/198

From wkemper at openjdk.org  Thu Jun 12 20:42:03 2025
From: wkemper at openjdk.org (William Kemper)
Date: Thu, 12 Jun 2025 20:42:03 GMT
Subject: RFR: Merge openjdk/jdk21u:master
In-Reply-To: <xQRlJ86Lxh3cX3CXZjYJS6nAfTccQaEt7wp8eJTI6mY=.894785cf-c8c5-4ed6-80db-001527d2f4b6@github.com>
References: <xQRlJ86Lxh3cX3CXZjYJS6nAfTccQaEt7wp8eJTI6mY=.894785cf-c8c5-4ed6-80db-001527d2f4b6@github.com>
Message-ID: <tqjNmrZr6l5ssZbsp14ScA6yv7P82zebelz5y6-Go-c=.f3188d73-54c6-453e-a357-d8ee05b63bb7@github.com>

On Thu, 12 Jun 2025 14:23:55 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Merges tag jdk-21.0.8+6

Build failure looks infrastructure related.

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk21u/pull/198#issuecomment-2968096397

From wkemper at openjdk.org  Thu Jun 12 20:42:03 2025
From: wkemper at openjdk.org (William Kemper)
Date: Thu, 12 Jun 2025 20:42:03 GMT
Subject: Integrated: Merge openjdk/jdk21u:master
In-Reply-To: <xQRlJ86Lxh3cX3CXZjYJS6nAfTccQaEt7wp8eJTI6mY=.894785cf-c8c5-4ed6-80db-001527d2f4b6@github.com>
References: <xQRlJ86Lxh3cX3CXZjYJS6nAfTccQaEt7wp8eJTI6mY=.894785cf-c8c5-4ed6-80db-001527d2f4b6@github.com>
Message-ID: <qhr3ZNCy2Vppi9cFMLW_5bR5laobaIxZBezMgzG7t4M=.2b63bf0a-4130-4a91-ad75-b0e697c3b4f7@github.com>

On Thu, 12 Jun 2025 14:23:55 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Merges tag jdk-21.0.8+6

This pull request has now been integrated.

Changeset: 9fb8d5be
Author:    William Kemper <wkemper at openjdk.org>
URL:       https://git.openjdk.org/shenandoah-jdk21u/commit/9fb8d5be3ee1a9a8334d689016bf69069bc87ba2
Stats:     66 lines in 2 files changed: 64 ins; 0 del; 2 mod

Merge

-------------

PR: https://git.openjdk.org/shenandoah-jdk21u/pull/198

From wkemper at openjdk.org  Thu Jun 12 20:42:53 2025
From: wkemper at openjdk.org (William Kemper)
Date: Thu, 12 Jun 2025 20:42:53 GMT
Subject: RFR: 8358102: GenShen: Age tables could be seeded with cumulative
 values
In-Reply-To: <S517jpQ6Y4-hSxX_hHJEkpCVcBRGpb_yuTJOFV0u9X0=.36be3279-d467-4673-8434-b15f23034ed4@github.com>
References: <S517jpQ6Y4-hSxX_hHJEkpCVcBRGpb_yuTJOFV0u9X0=.36be3279-d467-4673-8434-b15f23034ed4@github.com>
Message-ID: <hpraDzJJIXmO5yStjIqIM1zIWQGWZaiz3p9820qs6Zk=.0335f528-5f2b-40e7-a6ad-da47711520eb@github.com>

On Mon, 2 Jun 2025 18:55:37 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Clean backport, low risk.

Test failure looks unrelated.

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk21u/pull/197#issuecomment-2968097290

From wkemper at openjdk.org  Thu Jun 12 20:42:53 2025
From: wkemper at openjdk.org (William Kemper)
Date: Thu, 12 Jun 2025 20:42:53 GMT
Subject: Integrated: 8358102: GenShen: Age tables could be seeded with
 cumulative values
In-Reply-To: <S517jpQ6Y4-hSxX_hHJEkpCVcBRGpb_yuTJOFV0u9X0=.36be3279-d467-4673-8434-b15f23034ed4@github.com>
References: <S517jpQ6Y4-hSxX_hHJEkpCVcBRGpb_yuTJOFV0u9X0=.36be3279-d467-4673-8434-b15f23034ed4@github.com>
Message-ID: <zx4gpn7uXqjoWOyXZTFMxzF8_8HnAIllDMoPqgIo7F0=.c3c9693b-1bc3-4cb3-b458-02ef1231508e@github.com>

On Mon, 2 Jun 2025 18:55:37 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Clean backport, low risk.

This pull request has now been integrated.

Changeset: 7172b510
Author:    William Kemper <wkemper at openjdk.org>
URL:       https://git.openjdk.org/shenandoah-jdk21u/commit/7172b5105781fddf492726bd4291d50780bf2a15
Stats:     1 line in 1 file changed: 0 ins; 0 del; 1 mod

8358102: GenShen: Age tables could be seeded with cumulative values

Backport-of: 99a4b22ae7dc2755df1780cc7d74c5d6e3cd4cd4

-------------

PR: https://git.openjdk.org/shenandoah-jdk21u/pull/197

From wkemper at openjdk.org  Thu Jun 12 22:10:12 2025
From: wkemper at openjdk.org (William Kemper)
Date: Thu, 12 Jun 2025 22:10:12 GMT
Subject: RFR: 8357976: GenShen crash in swap_card_tables: Should be clean
 [v3]
In-Reply-To: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
References: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
Message-ID: <dpo3e1f5q1xe3MxkRyGoYs26jykQl7qg8YYtuUTl8oA=.0ba67ed6-ba73-4b14-b949-aae6003de160@github.com>

> Degenerated cycles must also clean the `read` card table before swapping it with the `write` card table.

William Kemper has updated the pull request incrementally with one additional commit since the last revision:

  Revert "Consolidate read table cleaning"
  
  This reverts commit 9552021cbeec699e7b04db81fa68819c23b7dab7.

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25735/files
  - new: https://git.openjdk.org/jdk/pull/25735/files/9552021c..a313cf8d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25735&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25735&range=01-02

  Stats: 20 lines in 3 files changed: 10 ins; 5 del; 5 mod
  Patch: https://git.openjdk.org/jdk/pull/25735.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25735/head:pull/25735

PR: https://git.openjdk.org/jdk/pull/25735

From wkemper at openjdk.org  Thu Jun 12 22:47:28 2025
From: wkemper at openjdk.org (William Kemper)
Date: Thu, 12 Jun 2025 22:47:28 GMT
Subject: RFR: 8357976: GenShen crash in swap_card_tables: Should be clean
 [v3]
In-Reply-To: <dpo3e1f5q1xe3MxkRyGoYs26jykQl7qg8YYtuUTl8oA=.0ba67ed6-ba73-4b14-b949-aae6003de160@github.com>
References: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
 <dpo3e1f5q1xe3MxkRyGoYs26jykQl7qg8YYtuUTl8oA=.0ba67ed6-ba73-4b14-b949-aae6003de160@github.com>
Message-ID: <GHjpKb3XaH9ordY5cWVGnqEwjwrXs_pPfgoxnckwNNk=.5e985710-7a3f-4c21-93a0-b14fecf8a845@github.com>

On Thu, 12 Jun 2025 22:10:12 GMT, William Kemper <wkemper at openjdk.org> wrote:

>> Degenerated cycles must also clean the `read` card table before swapping it with the `write` card table.
>
> William Kemper has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Revert "Consolidate read table cleaning"
>   
>   This reverts commit 9552021cbeec699e7b04db81fa68819c23b7dab7.

@pengxiaolong - We don't want to clean the read table during init-mark because that's a safepoint. We can safely clean the read table concurrently because only the GC thread has access to it.

@ysramakrishna - The refactoring you suggest is not so simple, alas. We have to be very careful about the ordering of cleaning the `read` table, resetting the mark bitmap and swapping the card tables. Genshen does not clean the `read` table at the end of a concurrent cycle (we _could_ do this, but we'd still need to do the same in a degenerated cycle). The complexity comes from swapping the card tables in a concurrent cycle. We must not let a subsequent degenerated cycle swap them a second time. The degenerated cycle can only clean the `read` table if there was no active concurrent cycle (lest it throw away critical remembered set data). 

However, the degenerated cycle must also clear the mark bitmaps if the concurrent cycle degenerated during the root scan (the degenerated cycle will rescan the roots). Of course, we cannot clear the mark bitmaps if the concurrent cycle degenerated during the mark phase. So, for the degenerated cycle, clearing the mark bitmaps and cleaning the read table need to happen in two different cases and it doesn't work if they're combined into the same method (and I don't think adding a method parameter to sometimes clear the mark bitmap and sometimes the read table will make the code any easier to understand).

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25735#issuecomment-2968354749

From wkemper at openjdk.org  Thu Jun 12 23:46:36 2025
From: wkemper at openjdk.org (William Kemper)
Date: Thu, 12 Jun 2025 23:46:36 GMT
Subject: RFR: 8359394: Shenandoah: GC cause cleanup
Message-ID: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>

We can remove `GCCause::_no_cause_specified` and need to add a case for `_shenandoah_humongous_allocation_failure` in `GCCause::to_string`. We are also missing `_shenandoah_humongous_allocation_failure` in the `SA` analog.

-------------

Commit messages:
 - Fix typo
 - Clean up/fix gc causes for Shenandoah

Changes: https://git.openjdk.org/jdk/pull/25789/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25789&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8359394
  Stats: 18 lines in 5 files changed: 5 ins; 6 del; 7 mod
  Patch: https://git.openjdk.org/jdk/pull/25789.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25789/head:pull/25789

PR: https://git.openjdk.org/jdk/pull/25789

From wkemper at openjdk.org  Fri Jun 13 00:15:29 2025
From: wkemper at openjdk.org (William Kemper)
Date: Fri, 13 Jun 2025 00:15:29 GMT
Subject: RFR: 8359394: Shenandoah: GC cause cleanup
In-Reply-To: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>
References: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>
Message-ID: <p9BzwURqdvou-U1L4pPs5O-kir0JqOJcpWEoKMsOF9g=.e3e7f924-60bd-456a-99ac-cae5c9226e6f@github.com>

On Thu, 12 Jun 2025 23:42:41 GMT, William Kemper <wkemper at openjdk.org> wrote:

> We can remove `GCCause::_no_cause_specified` and need to add a case for `_shenandoah_humongous_allocation_failure` in `GCCause::to_string`. We are also missing `_shenandoah_humongous_allocation_failure` in the `SA` analog.

src/hotspot/share/gc/shared/gcCause.cpp line 92:

> 90:       return "Diagnostic Command";
> 91: 
> 92:     case _shenandoah_stop_vm:

Just reordered this case to match enum's declaration order.

src/hotspot/share/gc/shared/gcCause.hpp line 118:

> 116:   inline static bool is_allocation_failure_gc(GCCause::Cause cause) {
> 117:     // _allocation_failure is the generic cause a collection for allocation failure
> 118:     return cause == GCCause::_allocation_failure;

Shenandoah does not use this method. Nobody else needs to know about this Shenandoah specific value.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/25789#discussion_r2143900441
PR Review Comment: https://git.openjdk.org/jdk/pull/25789#discussion_r2143904488

From shade at openjdk.org  Fri Jun 13 09:45:29 2025
From: shade at openjdk.org (Aleksey Shipilev)
Date: Fri, 13 Jun 2025 09:45:29 GMT
Subject: RFR: 8359394: Shenandoah: GC cause cleanup
In-Reply-To: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>
References: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>
Message-ID: <yX3ItHkBc8Rt7jI6Iu8bQMODtI-SrtMZ4ZbA4MGqvpc=.1bb654f5-cadb-4447-8769-0b459ed1ef91@github.com>

On Thu, 12 Jun 2025 23:42:41 GMT, William Kemper <wkemper at openjdk.org> wrote:

> We can remove `GCCause::_no_cause_specified` and need to add a case for `_shenandoah_humongous_allocation_failure` in `GCCause::to_string`. We are also missing `_shenandoah_humongous_allocation_failure` in the `SA` analog.

Shenandoah parts look good, but we should avoid changing shared code unnecessarily.

Changes requested by shade (Reviewer).

src/hotspot/share/gc/shared/gcCause.hpp line 58:

> 56:     /* implementation independent, but reserved for GC use */
> 57:     _no_gc,
> 58:     _no_cause_specified,

Code history shows this enum was there since the beginning of OpenJDK. So it is better to leave it alone. It is also less confusing to have only Shenandoah-specific changes in RFE that starts with "Shenandoah: ..."

-------------

Changes requested by shade (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25789#pullrequestreview-2924090662
PR Review: https://git.openjdk.org/jdk/pull/25789#pullrequestreview-2924091681
PR Review Comment: https://git.openjdk.org/jdk/pull/25789#discussion_r2144632935

From mdoerr at openjdk.org  Fri Jun 13 11:57:35 2025
From: mdoerr at openjdk.org (Martin Doerr)
Date: Fri, 13 Jun 2025 11:57:35 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v3]
In-Reply-To: <cXYQYfOLGgpJUJXn_mfH0sFsyhUHzUlOa7kCZD5sA4A=.537b7c84-4fb4-4c59-b125-d876a50449cf@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <cXYQYfOLGgpJUJXn_mfH0sFsyhUHzUlOa7kCZD5sA4A=.537b7c84-4fb4-4c59-b125-d876a50449cf@github.com>
Message-ID: <0jwlIB4VebRh3dORUSPdbmmE4YWS1Z6t_Ax8ni0_tpg=.f9dd6d19-1c97-43d7-acb2-ad575b61d433@github.com>

On Thu, 12 Jun 2025 19:54:45 GMT, Dean Long <dlong at openjdk.org> wrote:

>> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
>> 
>> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
>> 
>> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
>> 
>> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
>> 
>> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.
>
> Dean Long has updated the pull request incrementally with six additional commits since the last revision:
> 
>  - more cleanup
>  - more TheRealMDoerr suggestions
>  - TheRealMDoerr suggestions
>  - remove trailing space
>  - Fix Shenandoah build
>  - more cleanup

LGTM, now. I think `is_sigill_not_entrant` should also be removed completely: https://github.com/TheRealMDoerr/jdk/commit/f61f54a40ad0b952ba8c0a668675b3f315f83a95
I've run tests on some platforms, but will run on more.
@offamitkumar, @RealFYang, @bulasevich: You may also want to check your platforms.
@fisk: You may want to take a look at the nmethod entry barrier changes.

-------------

PR Review: https://git.openjdk.org/jdk/pull/25764#pullrequestreview-2924552667

From andrew at openjdk.org  Fri Jun 13 18:09:06 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 18:09:06 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <CXg6bpyoffX6H73H9bWEe6f4dJRRmeFBWL2XHrmM87U=.950ffdd6-6f54-42a0-ac80-2b15f3c15c3b@github.com>

Merge jdk8u362-b06

-------------

Commit messages:
 - Merge jdk8u362-b06
 - 8275887: jarsigner prints invalid digest/signature algorithm warnings if keysize is weak/disabled
 - 8296108: (tz) Update Timezone Data to 2022f

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/36/files
  Stats: 2475 lines in 45 files changed: 993 ins; 1277 del; 205 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/36.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/36/head:pull/36

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/36

From andrew at openjdk.org  Fri Jun 13 18:09:06 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 18:09:06 GMT
Subject: RFR: Merge jdk8u:master
In-Reply-To: <CXg6bpyoffX6H73H9bWEe6f4dJRRmeFBWL2XHrmM87U=.950ffdd6-6f54-42a0-ac80-2b15f3c15c3b@github.com>
References: <CXg6bpyoffX6H73H9bWEe6f4dJRRmeFBWL2XHrmM87U=.950ffdd6-6f54-42a0-ac80-2b15f3c15c3b@github.com>
Message-ID: <6NwedsZ5FbUEQVHOkKTxohCgOI4FZ8iI0iXTFzG1ZaM=.04fad37a-1be3-4bf9-871b-2d0819d3292a@github.com>

On Fri, 13 Jun 2025 18:05:25 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u362-b06

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk8u/pull/36#issuecomment-2971153954

From andrew at openjdk.org  Fri Jun 13 18:15:23 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 18:15:23 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 3 new changesets
Message-ID: <9eb0a1ad-9e05-4dd5-ba3f-c90545a94306@openjdk.org>

Changeset: 7297bdfc
Branch: master
Author:    Dmitry Cherepanov <dcherepanov at openjdk.org>
Date:      2022-11-30 16:25:28 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/7297bdfcaeb55da8c14560ff352407d114a38bd7

8296108: (tz) Update Timezone Data to 2022f

Reviewed-by: andrew
Backport-of: 9d3b4ef2ad658afb5379796b7224458c12c81f5d

! jdk/make/data/tzdata/VERSION
! jdk/make/data/tzdata/africa
! jdk/make/data/tzdata/antarctica
! jdk/make/data/tzdata/asia
! jdk/make/data/tzdata/australasia
! jdk/make/data/tzdata/backward
! jdk/make/data/tzdata/etcetera
! jdk/make/data/tzdata/europe
! jdk/make/data/tzdata/northamerica
! jdk/make/data/tzdata/southamerica
! jdk/make/data/tzdata/zone.tab
! jdk/src/share/classes/sun/util/resources/TimeZoneNames.java
! jdk/src/share/classes/sun/util/resources/de/TimeZoneNames_de.java
! jdk/src/share/classes/sun/util/resources/es/TimeZoneNames_es.java
! jdk/src/share/classes/sun/util/resources/fr/TimeZoneNames_fr.java
! jdk/src/share/classes/sun/util/resources/it/TimeZoneNames_it.java
! jdk/src/share/classes/sun/util/resources/ja/TimeZoneNames_ja.java
! jdk/src/share/classes/sun/util/resources/ko/TimeZoneNames_ko.java
! jdk/src/share/classes/sun/util/resources/pt/TimeZoneNames_pt_BR.java
! jdk/src/share/classes/sun/util/resources/sv/TimeZoneNames_sv.java
! jdk/src/share/classes/sun/util/resources/zh/TimeZoneNames_zh_CN.java
! jdk/src/share/classes/sun/util/resources/zh/TimeZoneNames_zh_TW.java
! jdk/test/java/util/TimeZone/TimeZoneData/VERSION
! jdk/test/java/util/TimeZone/TimeZoneData/aliases.txt
! jdk/test/java/util/TimeZone/TimeZoneData/displaynames.txt
! jdk/test/sun/util/calendar/zi/tzdata/VERSION
! jdk/test/sun/util/calendar/zi/tzdata/africa
! jdk/test/sun/util/calendar/zi/tzdata/antarctica
! jdk/test/sun/util/calendar/zi/tzdata/asia
! jdk/test/sun/util/calendar/zi/tzdata/australasia
! jdk/test/sun/util/calendar/zi/tzdata/backward
! jdk/test/sun/util/calendar/zi/tzdata/etcetera
! jdk/test/sun/util/calendar/zi/tzdata/europe
! jdk/test/sun/util/calendar/zi/tzdata/northamerica
! jdk/test/sun/util/calendar/zi/tzdata/southamerica
! jdk/test/sun/util/calendar/zi/tzdata/zone.tab

Changeset: 53620b38
Branch: master
Author:    Alexey Bakhtin <abakhtin at openjdk.org>
Date:      2022-12-01 06:17:19 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/53620b38d3d46344b5d5e9deb017a234828ead28

8275887: jarsigner prints invalid digest/signature algorithm warnings if keysize is weak/disabled

Reviewed-by: phh, andrew
Backport-of: 03f8c0fb9363dc1bb07bed1ae0359c029caa0130

! jdk/src/share/classes/sun/security/pkcs/SignerInfo.java
! jdk/src/share/classes/sun/security/provider/certpath/AlgorithmChecker.java
! jdk/src/share/classes/sun/security/provider/certpath/DistributionPointFetcher.java
! jdk/src/share/classes/sun/security/tools/jarsigner/Main.java
! jdk/src/share/classes/sun/security/util/DisabledAlgorithmConstraints.java
! jdk/src/share/classes/sun/security/util/JarConstraintsParameters.java
! jdk/src/share/classes/sun/security/util/ManifestEntryVerifier.java
! jdk/src/share/classes/sun/security/util/SignatureFileVerifier.java
! jdk/test/sun/security/tools/jarsigner/TimestampCheck.java

Changeset: 165b824d
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 23:14:37 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/165b824d3442545c17f29a173d1f54b368a24013

Merge jdk8u362-b06

Added tag jdk8u362-b06 for changeset 53620b38d3d



From andrew at openjdk.org  Fri Jun 13 18:15:33 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 18:15:33 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u362-b06 for changeset
 53620b38
Message-ID: <878780bc-5ca1-4e9a-823a-56821c61c63f@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-12-12 14:17:34 +0000

Added tag jdk8u362-b06 for changeset 53620b38d3d
Changeset: 53620b38
Author:    Alexey Bakhtin <abakhtin at openjdk.org>
Date:      2022-12-01 06:17:19 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/53620b38d3d46344b5d5e9deb017a234828ead28


From andrew at openjdk.org  Fri Jun 13 18:15:35 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 18:15:35 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u362-b06 for
 changeset 165b824d
Message-ID: <461caeca-7fcb-4841-90f3-9baf03785a9c@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-10 00:43:39 +0000

Added tag shenandoah8u362-b06 for changeset 165b824d344
Changeset: 165b824d
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-07 23:14:37 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/165b824d3442545c17f29a173d1f54b368a24013


From andrew at openjdk.org  Fri Jun 13 18:17:18 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 18:17:18 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <CXg6bpyoffX6H73H9bWEe6f4dJRRmeFBWL2XHrmM87U=.950ffdd6-6f54-42a0-ac80-2b15f3c15c3b@github.com>
References: <CXg6bpyoffX6H73H9bWEe6f4dJRRmeFBWL2XHrmM87U=.950ffdd6-6f54-42a0-ac80-2b15f3c15c3b@github.com>
Message-ID: <P4pD7PNIHV7CZvp-SXPaaGs8UbxSgl8_MhVhxpPdWJQ=.64244e96-5a07-4c1e-9210-0db5fa1db54c@github.com>

> Merge jdk8u362-b06

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/36/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/36/files/165b824d..165b824d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=36&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=36&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/36.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/36/head:pull/36

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/36

From iris at openjdk.org  Fri Jun 13 18:17:18 2025
From: iris at openjdk.org (Iris Clark)
Date: Fri, 13 Jun 2025 18:17:18 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <CXg6bpyoffX6H73H9bWEe6f4dJRRmeFBWL2XHrmM87U=.950ffdd6-6f54-42a0-ac80-2b15f3c15c3b@github.com>
References: <CXg6bpyoffX6H73H9bWEe6f4dJRRmeFBWL2XHrmM87U=.950ffdd6-6f54-42a0-ac80-2b15f3c15c3b@github.com>
Message-ID: <2AikjEKol7w14RGVtGLjAtGqCJcd4Ll1xrl40bXoSoE=.94643e6b-adc6-46aa-982d-c5f57dc83e7f@github.com>

On Fri, 13 Jun 2025 18:05:25 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u362-b06

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/36

From dlong at openjdk.org  Fri Jun 13 19:18:19 2025
From: dlong at openjdk.org (Dean Long)
Date: Fri, 13 Jun 2025 19:18:19 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
Message-ID: <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>

> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
> 
> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
> 
> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
> 
> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
> 
> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.

Dean Long has updated the pull request incrementally with one additional commit since the last revision:

  remove is_sigill_not_entrant

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25764/files
  - new: https://git.openjdk.org/jdk/pull/25764/files/0950fc5e..c1ebde09

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25764&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25764&range=02-03

  Stats: 23 lines in 6 files changed: 0 ins; 22 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/25764.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25764/head:pull/25764

PR: https://git.openjdk.org/jdk/pull/25764

From andrew at openjdk.org  Fri Jun 13 20:11:09 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 20:11:09 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 4 new changesets
Message-ID: <a46daa0f-e7bd-41a9-a96d-caa0afd7fe69@openjdk.org>

Changeset: 518047d8
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-12-22 00:57:38 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/518047d8781988191b982b33839c4b4ea9f280e1

8296715: CLDR v42 update for tzdata 2022f

Reviewed-by: dcherepanov, sgehwolf
Backport-of: da9de488990ff47fe06343439f2180ec1b2a3061

! jdk/src/share/classes/sun/util/cldr/resources/21_0_1/common/supplemental/metaZones.xml

Changeset: c961cb9f
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-12-22 01:07:55 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c961cb9f676cbb05e8fa28b7ca9d41b02fc83d3d

8297804: (tz) Update Timezone Data to 2022g

Reviewed-by: dcherepanov, sgehwolf
Backport-of: ce896731d38866c2bf99cd49525062e150d94160

! jdk/make/data/tzdata/VERSION
! jdk/make/data/tzdata/africa
! jdk/make/data/tzdata/asia
! jdk/make/data/tzdata/backward
! jdk/make/data/tzdata/europe
! jdk/make/data/tzdata/iso3166.tab
! jdk/make/data/tzdata/northamerica
! jdk/make/data/tzdata/southamerica
! jdk/make/data/tzdata/zone.tab
! jdk/src/share/classes/sun/util/cldr/resources/21_0_1/common/main/root.xml
! jdk/src/share/classes/sun/util/cldr/resources/21_0_1/common/supplemental/metaZones.xml
! jdk/src/share/classes/sun/util/resources/TimeZoneNames.java
! jdk/src/share/classes/sun/util/resources/de/TimeZoneNames_de.java
! jdk/src/share/classes/sun/util/resources/es/TimeZoneNames_es.java
! jdk/src/share/classes/sun/util/resources/fr/TimeZoneNames_fr.java
! jdk/src/share/classes/sun/util/resources/it/TimeZoneNames_it.java
! jdk/src/share/classes/sun/util/resources/ja/TimeZoneNames_ja.java
! jdk/src/share/classes/sun/util/resources/ko/TimeZoneNames_ko.java
! jdk/src/share/classes/sun/util/resources/pt/TimeZoneNames_pt_BR.java
! jdk/src/share/classes/sun/util/resources/sv/TimeZoneNames_sv.java
! jdk/src/share/classes/sun/util/resources/zh/TimeZoneNames_zh_CN.java
! jdk/src/share/classes/sun/util/resources/zh/TimeZoneNames_zh_TW.java
! jdk/test/java/util/TimeZone/TimeZoneData/VERSION
! jdk/test/java/util/TimeZone/TimeZoneData/aliases.txt
! jdk/test/java/util/TimeZone/TimeZoneData/displaynames.txt
! jdk/test/sun/util/calendar/zi/tzdata/VERSION
! jdk/test/sun/util/calendar/zi/tzdata/africa
! jdk/test/sun/util/calendar/zi/tzdata/asia
! jdk/test/sun/util/calendar/zi/tzdata/backward
! jdk/test/sun/util/calendar/zi/tzdata/europe
! jdk/test/sun/util/calendar/zi/tzdata/iso3166.tab
! jdk/test/sun/util/calendar/zi/tzdata/northamerica
! jdk/test/sun/util/calendar/zi/tzdata/southamerica
! jdk/test/sun/util/calendar/zi/tzdata/zone.tab

Changeset: ebc5e190
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-12-23 17:55:05 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ebc5e190ac7a3b0c143451105d9f9b7d9e780a4b

8280890: Cannot use '-Djava.system.class.loader' with class loader in signed JAR

Reviewed-by: andrew
Backport-of: a0f6f2409ea61ff9ed9dc2e2b46e309c751d456d

! jdk/src/share/classes/sun/security/util/DisabledAlgorithmConstraints.java
+ jdk/test/java/security/SignedJar/CustomClassLoader.java
+ jdk/test/java/security/SignedJar/SignedJarWithCustomClassLoader.java

Changeset: 3393ce98
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-13 19:13:38 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3393ce98277b6d7572541bf2c4efb29c7b94b46f

Merge jdk8u362-b07

Added tag jdk8u362-b07 for changeset ebc5e190ac7



From andrew at openjdk.org  Fri Jun 13 20:11:19 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 20:11:19 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u362-b07 for changeset
 ebc5e190
Message-ID: <77221e1c-0e60-4de6-9987-0b1f48681223@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-12-29 00:48:44 +0000

Added tag jdk8u362-b07 for changeset ebc5e190ac7
Changeset: ebc5e190
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-12-23 17:55:05 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ebc5e190ac7a3b0c143451105d9f9b7d9e780a4b


From andrew at openjdk.org  Fri Jun 13 20:11:23 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 20:11:23 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u362-b07 for
 changeset 3393ce98
Message-ID: <7cc34340-a39f-4e5a-9467-3b9b2bc9866b@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-13 20:51:30 +0000

Added tag shenandoah8u362-b07 for changeset 3393ce98277
Changeset: 3393ce98
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-13 19:13:38 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3393ce98277b6d7572541bf2c4efb29c7b94b46f


From ysr at openjdk.org  Fri Jun 13 20:52:28 2025
From: ysr at openjdk.org (Y. Srinivas Ramakrishna)
Date: Fri, 13 Jun 2025 20:52:28 GMT
Subject: RFR: 8359394: Shenandoah: GC cause cleanup
In-Reply-To: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>
References: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>
Message-ID: <d2iYDGY5VtLvwbwWaz2klBw7uRgMaf829WpdFFqweDc=.bd1c05f3-7ac3-4fe0-9ac8-a336abaefe34@github.com>

On Thu, 12 Jun 2025 23:42:41 GMT, William Kemper <wkemper at openjdk.org> wrote:

> We can remove `GCCause::_no_cause_specified` and need to add a case for `_shenandoah_humongous_allocation_failure` in `GCCause::to_string`. We are also missing `_shenandoah_humongous_allocation_failure` in the `SA` analog.

Reviewed -- would be good to go from my standpoint after separating into a separate ticket as suggested by Aleksey the collapse of `no_cause_specified` into its putative synonym `_no_gc`.

Approving in advance, subject to that change, and re-review by Aleksey.

src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/shared/GCCause.java line 42:

> 40: 
> 41:   _no_gc ("No GC"),
> 42:   _no_cause_specified ("Unknown GCCause"),

I agree that "no cause specified" and "no gc" almost sound like synonyms, and any uses of one could be replaced with the other. However, with @shipilev , I agree that may be you split the changes to this kind of shared code into a separate ticket, in keeping with hotspot dev practices.

-------------

Marked as reviewed by ysr (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25789#pullrequestreview-2926250505
PR Review Comment: https://git.openjdk.org/jdk/pull/25789#discussion_r2146013368

From andrew at openjdk.org  Fri Jun 13 20:52:50 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 20:52:50 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <nVbd8UTRubBWXR_HmTmEwoDt7dLF2OKgsquwwW8kMws=.2b51bea8-54a3-41e8-8e69-3a812a4f3acb@github.com>

Merge jdk8u362-b08

-------------

Commit messages:
 - Merge jdk8u362-b08
 - 8299439: java/text/Format/NumberFormat/CurrencyFormat.java fails for hr_HR
 - 8296239: ISO 4217 Amendment 174 Update
 - 8294307: ISO 4217 Amendment 173 Update
 - 8289549: ISO 4217 Amendment 172 Update
 - 8283277: ISO 4217 Amendment 171 Update
 - 8295723: security/infra/wycheproof/RunWycheproof.java fails with Assertion Error
 - 8295687: Better BMP bounds
 - 8293742: Better Banking of Sounds
 - 8293734: Improve BMP image handling
 - ... and 7 more: https://git.openjdk.org/shenandoah-jdk8u/compare/3393ce98...e0ea7202

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=38&range=00.0
 - jdk8u:master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=38&range=00.1

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/38/files
  Stats: 424 lines in 40 files changed: 193 ins; 108 del; 123 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/38.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/38/head:pull/38

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/38

From andrew at openjdk.org  Fri Jun 13 20:52:50 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 20:52:50 GMT
Subject: RFR: Merge jdk8u:master
In-Reply-To: <nVbd8UTRubBWXR_HmTmEwoDt7dLF2OKgsquwwW8kMws=.2b51bea8-54a3-41e8-8e69-3a812a4f3acb@github.com>
References: <nVbd8UTRubBWXR_HmTmEwoDt7dLF2OKgsquwwW8kMws=.2b51bea8-54a3-41e8-8e69-3a812a4f3acb@github.com>
Message-ID: <q0pQmLZ6m1SvhT57rLcyzxNrR24uZRNwsadKCkXYMmg=.69fcba00-c6ab-438e-9012-5cd63449eaa1@github.com>

On Fri, 13 Jun 2025 20:48:09 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u362-b08

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk8u/pull/38#issuecomment-2971649174

From andrew at openjdk.org  Fri Jun 13 21:12:55 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 21:12:55 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 17 new changesets
Message-ID: <c84b2dca-79cc-44bb-a32f-1571aa5df633@openjdk.org>

Changeset: 259a33e4
Branch: master
Author:    Paul Hohensee <phh at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-13 03:18:49 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/259a33e4e11236f26ecebb4239771aafe59a0229

8285021: Improve CORBA communication

Co-authored-by: Joshua Cao <joshcao at amazon.com>
Reviewed-by: mbalao, bae, andrew

! corba/src/share/classes/com/sun/corba/se/impl/orbutil/ORBConstants.java
! corba/src/share/classes/com/sun/tools/corba/se/idl/toJavaPortable/Stub.java

Changeset: 8d0c25d3
Branch: master
Author:    Martin Balao <mbalao at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-13 03:51:44 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/8d0c25d3c43bd33173dc7f66fbc4f3bd3d55d341

8286496: Improve Thread labels

Reviewed-by: andrew
Backport-of: e733e55de88e63e129f15edefc602c050339b38a

! hotspot/src/share/vm/jfr/recorder/checkpoint/jfrCheckpointManager.cpp
! hotspot/src/share/vm/jfr/recorder/storage/jfrBuffer.cpp
! hotspot/src/share/vm/jfr/recorder/storage/jfrBuffer.hpp
! hotspot/src/share/vm/jfr/recorder/storage/jfrMemorySpace.hpp
! hotspot/src/share/vm/jfr/writers/jfrWriterHost.inline.hpp
! hotspot/src/share/vm/prims/jni.cpp
! hotspot/src/share/vm/utilities/macros.hpp

Changeset: d2f3eda7
Branch: master
Author:    Yuri Nesterenko <yan at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-10-28 09:52:29 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d2f3eda788f83813284358a7dfcb6f8dbf6728e7

8288516: Enhance font creation

Reviewed-by: mbalao, andrew
Backport-of: 4c7b057380d7656c8c275b526d1918de6a625cc4

! jdk/src/windows/native/sun/font/fontpath.c
! jdk/src/windows/native/sun/font/lcdglyph.c
! jdk/src/windows/native/sun/windows/awt_Font.cpp
! jdk/src/windows/native/sun/windows/awt_PrintJob.cpp

Changeset: 0f2b98ef
Branch: master
Author:    Alexei Voitylov <avoitylov at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-12-07 11:55:43 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0f2b98efc8068abb65db3ce8c90209bbdf107662

8289350: Better media supports

Reviewed-by: mbalao, andrew
Backport-of: 8278c12ceff28681a8e8cde8dd49ee9a79eaf25e

! hotspot/src/os_cpu/aix_ppc/vm/os_aix_ppc.cpp
! hotspot/src/os_cpu/bsd_x86/vm/os_bsd_x86.cpp
! hotspot/src/os_cpu/linux_aarch64/vm/os_linux_aarch64.cpp
! hotspot/src/os_cpu/linux_ppc/vm/os_linux_ppc.cpp
! hotspot/src/os_cpu/linux_sparc/vm/os_linux_sparc.cpp
! hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp
! hotspot/src/os_cpu/solaris_sparc/vm/os_solaris_sparc.cpp
! hotspot/src/os_cpu/solaris_x86/vm/os_solaris_x86.cpp

Changeset: c95512d5
Branch: master
Author:    Martin Balao <mbalao at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-10-07 23:30:07 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c95512d5029fd54ec7ef879438b2419325cd1c02

8293554: Enhanced DH Key Exchanges

Reviewed-by: andrew
Backport-of: ca126c9025ad975d9086d5f967d35a76425c13ca

! jdk/src/share/classes/com/sun/crypto/provider/DHKeyPairGenerator.java
! jdk/src/share/classes/com/sun/crypto/provider/DHParameterGenerator.java
! jdk/src/share/classes/sun/security/provider/ParameterCache.java
! jdk/src/share/classes/sun/security/ssl/PredefinedDHParameterSpecs.java
! jdk/src/share/classes/sun/security/util/SecurityProviderConstants.java

Changeset: 8633abf2
Branch: master
Author:    Yuri Nesterenko <yan at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-11-01 13:35:47 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/8633abf2635b0fe52f1549eaa2df3c104cce8cb5

8293598: Enhance InetAddress address handling

Reviewed-by: mbalao, andrew
Backport-of: a2668f58ccc3b7c7d74e2903128b08d97aac5798

! jdk/src/share/classes/java/net/InetAddress.java
! jdk/src/share/classes/sun/net/util/IPAddressUtil.java

Changeset: 26dd9f08
Branch: master
Author:    Yuri Nesterenko <yan at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-10-28 13:47:05 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/26dd9f0814af3abc608bff9143585eb8996a9e30

8293717: Objective view of ObjectView

Reviewed-by: mbalao, andrew
Backport-of: fb692840530fa07174f9ad5c9f77d593e503a155

! jdk/src/share/classes/javax/swing/text/html/ObjectView.java

Changeset: 4f5099ee
Branch: master
Author:    Rui Li <ruili at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-11-23 23:16:17 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/4f5099ee2b9531288426deecea5eacca4b2d4959

8293734: Improve BMP image handling

Reviewed-by: mbalao, andrew
Backport-of: 40959ac32b81c333f04628be227107762b78a7da

! jdk/src/share/classes/com/sun/imageio/plugins/bmp/BMPImageReader.java

Changeset: 00dbe881
Branch: master
Author:    Alexei Voitylov <avoitylov at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-11-24 20:39:50 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/00dbe881f5fb7b74c93762ddd06a33a716f786ce

8293742: Better Banking of Sounds

Reviewed-by: mbalao, andrew
Backport-of: f1de79f38fcff10ccaf232f79df0a94e84751ff7

! jdk/src/share/classes/com/sun/media/sound/JARSoundbankReader.java

Changeset: 36f0634c
Branch: master
Author:    Alexei Voitylov <avoitylov at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-11-24 12:57:55 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/36f0634c39f042b07075287a760baf2300ceac2b

8295687: Better BMP bounds

Reviewed-by: mbalao, andrew
Backport-of: 4df2fd2d1ca8ed73de6ac8b2f6a51ff93e3dac6d

! jdk/src/share/classes/com/sun/imageio/plugins/bmp/BMPImageReader.java

Changeset: 957b5f50
Branch: master
Author:    Martin Balao <mbalao at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2022-11-10 23:34:18 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/957b5f50d76117369ebfd67dddbeadb27685658a

8295723: security/infra/wycheproof/RunWycheproof.java fails with Assertion Error

Reviewed-by: andrew
Backport-of: e94ca7d3fc9b5946d5b808f98e334529054c4f39

! jdk/src/share/classes/com/sun/crypto/provider/DHKeyPairGenerator.java
! jdk/src/share/classes/sun/security/provider/ParameterCache.java
! jdk/src/share/classes/sun/security/ssl/PredefinedDHParameterSpecs.java
+ jdk/src/share/classes/sun/security/util/SafeDHParameterSpec.java
! jdk/src/share/classes/sun/security/util/SecurityProviderConstants.java

Changeset: 40ffc346
Branch: master
Author:    Dmitry Cherepanov <dcherepanov at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-05 07:48:45 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/40ffc346405827dff3684cf518aa0073a21b5805

8283277: ISO 4217 Amendment 171 Update

Reviewed-by: phh, andrew
Backport-of: c4dc58e12e197562dce90c0027aa74c29047cea6

! jdk/src/share/classes/java/util/CurrencyData.properties
! jdk/src/share/classes/sun/util/resources/CurrencyNames.properties
! jdk/test/java/util/Currency/ValidateISO4217.java
! jdk/test/java/util/Currency/tablea1.txt
! jdk/test/sun/text/resources/LocaleData
! jdk/test/sun/text/resources/LocaleDataTest.java

Changeset: 7dd12ae0
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-10 02:47:21 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/7dd12ae02fdcc373f6dfae3956e024b236ea007e

8289549: ISO 4217 Amendment 172 Update

Reviewed-by: dcherepanov
Backport-of: 03a5c254d36a51d478b3c1042f0fb6f2c7453dc6

! jdk/src/share/classes/java/util/CurrencyData.properties
! jdk/test/java/util/Currency/tablea1.txt

Changeset: 6389fde8
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-10 04:30:28 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/6389fde845f5e0c025ba60868fb90fd5a2c12b7a

8294307: ISO 4217 Amendment 173 Update

Reviewed-by: dcherepanov
Backport-of: e3eccbcbc2e27921c058d43b81fb113d10be2dab

! jdk/src/share/classes/java/util/CurrencyData.properties
! jdk/test/java/util/Currency/tablea1.txt

Changeset: 602d1d47
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-10 18:56:11 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/602d1d477625a8583a504216698a3dec1cb182e9

8296239: ISO 4217 Amendment 174 Update

Reviewed-by: dcherepanov
Backport-of: ff60b348813fd7e32bdda322f345f90311a60207

! jdk/src/share/classes/java/util/CurrencyData.properties
! jdk/test/java/util/Currency/ValidateISO4217.java
! jdk/test/java/util/Currency/tablea1.txt

Changeset: 056d5a79
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-12 17:44:28 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/056d5a79994cbaa67f901f3d89f5c140d4aa6f11

8299439: java/text/Format/NumberFormat/CurrencyFormat.java fails for hr_HR
8299483: ProblemList java/text/Format/NumberFormat/CurrencyFormat.java

Reviewed-by: dcherepanov, sgehwolf
Backport-of: 80eecc50e663155f04dcec1797efb4be4b8ee7b2

! jdk/src/share/classes/sun/util/resources/hr/CurrencyNames_hr_HR.properties
! jdk/test/java/text/Format/NumberFormat/CurrencySymbols.properties

Changeset: e0ea7202
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-13 21:08:53 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/e0ea72026ac1db9a8fea1595c9dcee15ee9da6ce

Merge jdk8u362-b08

Added tag jdk8u362-b08 for changeset 056d5a79994

! hotspot/src/share/vm/prims/jni.cpp
! hotspot/src/share/vm/utilities/macros.hpp
! hotspot/src/share/vm/prims/jni.cpp
! hotspot/src/share/vm/utilities/macros.hpp


From andrew at openjdk.org  Fri Jun 13 21:13:05 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 21:13:05 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u362-b08 for changeset
 056d5a79
Message-ID: <4529ae9e-3565-4046-8cbd-8c8e3a98dd48@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-13 06:02:14 +0000

Added tag jdk8u362-b08 for changeset 056d5a79994
Changeset: 056d5a79
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-12 17:44:28 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/056d5a79994cbaa67f901f3d89f5c140d4aa6f11


From andrew at openjdk.org  Fri Jun 13 21:13:09 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 21:13:09 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u362-b08 for
 changeset e0ea7202
Message-ID: <573ba35e-a66a-40ad-8b1f-695a22aaf5b9@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-13 21:34:55 +0000

Added tag shenandoah8u362-b08 for changeset e0ea72026ac
Changeset: e0ea7202
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-13 21:08:53 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/e0ea72026ac1db9a8fea1595c9dcee15ee9da6ce


From andrew at openjdk.org  Fri Jun 13 21:14:14 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 21:14:14 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <nVbd8UTRubBWXR_HmTmEwoDt7dLF2OKgsquwwW8kMws=.2b51bea8-54a3-41e8-8e69-3a812a4f3acb@github.com>
References: <nVbd8UTRubBWXR_HmTmEwoDt7dLF2OKgsquwwW8kMws=.2b51bea8-54a3-41e8-8e69-3a812a4f3acb@github.com>
Message-ID: <VAmXIRdmDPUwOARoccz2xfTQlkrEsXf6CJZp6ggyUdI=.8ebcbc27-ca9f-4b92-920e-d528b775f36a@github.com>

> Merge jdk8u362-b08

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/38/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/38/files/e0ea7202..e0ea7202

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=38&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=38&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/38.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/38/head:pull/38

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/38

From iris at openjdk.org  Fri Jun 13 21:14:14 2025
From: iris at openjdk.org (Iris Clark)
Date: Fri, 13 Jun 2025 21:14:14 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <nVbd8UTRubBWXR_HmTmEwoDt7dLF2OKgsquwwW8kMws=.2b51bea8-54a3-41e8-8e69-3a812a4f3acb@github.com>
References: <nVbd8UTRubBWXR_HmTmEwoDt7dLF2OKgsquwwW8kMws=.2b51bea8-54a3-41e8-8e69-3a812a4f3acb@github.com>
Message-ID: <aIEev_4CfRiTOqpS7aknBPr6hwi_jWDCXiz_NBmXgc8=.e5510a3d-dd04-4591-aea7-7240b6c8509d@github.com>

On Fri, 13 Jun 2025 20:48:09 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u362-b08

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/38

From andrew at openjdk.org  Fri Jun 13 21:49:16 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 21:49:16 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 3 new changesets
Message-ID: <d18e50d7-0823-4d47-9c87-1487c0cd92bf@openjdk.org>

Changeset: dfd2fe8e
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-16 19:34:47 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/dfd2fe8ef599c609d5bfe95519728720b9b92539

8300178: JDK-8286496 causes build failure on older GCC

Reviewed-by: sgehwolf

! hotspot/src/share/vm/jfr/writers/jfrWriterHost.inline.hpp

Changeset: 36321be7
Branch: master
Author:    Simon Tooke <stooke at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-16 19:41:13 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/36321be7840c8e044340b8c162a75dce3ae7698f

8300178: JDK-8288516 causes build failure on Windows + VS2010

Reviewed-by: andrew

! jdk/src/windows/native/sun/font/lcdglyph.c

Changeset: dcc3a4b0
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-13 22:11:43 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/dcc3a4b01216217394476fce4794c526f343505f

Merge jdk8u362-b09

Added tag jdk8u362-b09 for changeset 36321be7840



From andrew at openjdk.org  Fri Jun 13 21:49:25 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 21:49:25 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u362-b09 for changeset
 36321be7
Message-ID: <e3c035e2-e665-481e-9399-eee841986f56@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-16 19:44:56 +0000

Added tag jdk8u362-b09 for changeset 36321be7840
Changeset: 36321be7
Author:    Simon Tooke <stooke at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-16 19:41:13 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/36321be7840c8e044340b8c162a75dce3ae7698f


From andrew at openjdk.org  Fri Jun 13 21:49:28 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 21:49:28 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u362-b09 for
 changeset dcc3a4b0
Message-ID: <bb3f86d8-ad77-4649-b99d-0db6d48eb4af@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-13 22:16:37 +0000

Added tag shenandoah8u362-b09 for changeset dcc3a4b0121
Changeset: dcc3a4b0
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-13 22:11:43 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/dcc3a4b01216217394476fce4794c526f343505f


From andrew at openjdk.org  Fri Jun 13 21:49:33 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 21:49:33 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u362-ga for changeset
 36321be7
Message-ID: <35f9f391-735e-4b98-886c-e5c9c4282327@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-18 15:48:10 +0000

Added tag jdk8u362-ga for changeset 36321be7840
Changeset: 36321be7
Author:    Simon Tooke <stooke at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-16 19:41:13 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/36321be7840c8e044340b8c162a75dce3ae7698f


From andrew at openjdk.org  Fri Jun 13 21:49:39 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 13 Jun 2025 21:49:39 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u362-ga for
 changeset dcc3a4b0
Message-ID: <7d0e4723-ac48-477b-b22a-8f08089084cc@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-13 22:16:48 +0000

Added tag shenandoah8u362-ga for changeset dcc3a4b0121
Changeset: dcc3a4b0
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-13 22:11:43 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/dcc3a4b01216217394476fce4794c526f343505f


From andrew at openjdk.org  Sat Jun 14 00:26:03 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 14 Jun 2025 00:26:03 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <jpuClYNm11WQDE7yr5TqU79saR1IsjvC3A-1FGKoa_Q=.30139631-9e55-4ce2-97f7-64169ee8bf6f@github.com>

Merge jdk8u372-b01

-------------

Commit messages:
 - Merge jdk8u372-b01
 - 8075964: Test java/awt/Mouse/TitleBarDoubleClick/TitleBarDoubleClick.html fails intermittently with timeout error
 - 8239827: The test OpenByUNCPathNameTest.java should be changed to be manual
 - 8042098: [TESTBUG] Test sun/java2d/AcceleratedXORModeTest.java fails on Windows
 - 7001973: java/awt/Graphics2D/CopyAreaOOB.java fails
 - 8039888: [TEST_BUG] keyboard garbage after javax/swing/plaf/windows/WindowsRootPaneUI/WrongAltProcessing/WrongAltProcessing.java
 - 8196467: javax/swing/JInternalFrame/Test6325652.java fails
 - 8159135: [PIT] javax/swing/JMenuItem/8152981/MenuItemIconTest.java always fail
 - 8293767: AWT test TestSinhalaChar.java has old SCCS markings
 - 8301122: [8u] Fix unreliable vs2010 download link
 - ... and 68 more: https://git.openjdk.org/shenandoah-jdk8u/compare/dcc3a4b0...59178cdb

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=40&range=00.0
 - jdk8u:master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=40&range=00.1

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/40/files
  Stats: 13987 lines in 151 files changed: 11034 ins; 2569 del; 384 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/40.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/40/head:pull/40

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/40

From andrew at openjdk.org  Sat Jun 14 00:26:03 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 14 Jun 2025 00:26:03 GMT
Subject: RFR: Merge jdk8u:master
In-Reply-To: <jpuClYNm11WQDE7yr5TqU79saR1IsjvC3A-1FGKoa_Q=.30139631-9e55-4ce2-97f7-64169ee8bf6f@github.com>
References: <jpuClYNm11WQDE7yr5TqU79saR1IsjvC3A-1FGKoa_Q=.30139631-9e55-4ce2-97f7-64169ee8bf6f@github.com>
Message-ID: <8UIccZAdrgLL5RcPXVoSk6H9f_VlTkbaVevAGNGmZHA=.ff9ffa94-76a8-4bd9-b9de-7b9ab63d6352@github.com>

On Sat, 14 Jun 2025 00:20:51 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u372-b01

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk8u/pull/40#issuecomment-2972023991

From iris at openjdk.org  Sat Jun 14 01:23:00 2025
From: iris at openjdk.org (Iris Clark)
Date: Sat, 14 Jun 2025 01:23:00 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <jpuClYNm11WQDE7yr5TqU79saR1IsjvC3A-1FGKoa_Q=.30139631-9e55-4ce2-97f7-64169ee8bf6f@github.com>
References: <jpuClYNm11WQDE7yr5TqU79saR1IsjvC3A-1FGKoa_Q=.30139631-9e55-4ce2-97f7-64169ee8bf6f@github.com>
Message-ID: <IUdzoFjuUOHBl3dG_UwXOrdsdgm8T9AFzzwcFNqdBjk=.0998f6b7-c1fc-4ae3-9df2-d6231fec366f@github.com>

On Sat, 14 Jun 2025 00:20:51 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u372-b01

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/40

From andrew at openjdk.org  Sat Jun 14 01:23:00 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 14 Jun 2025 01:23:00 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <jpuClYNm11WQDE7yr5TqU79saR1IsjvC3A-1FGKoa_Q=.30139631-9e55-4ce2-97f7-64169ee8bf6f@github.com>
References: <jpuClYNm11WQDE7yr5TqU79saR1IsjvC3A-1FGKoa_Q=.30139631-9e55-4ce2-97f7-64169ee8bf6f@github.com>
Message-ID: <QR_3Z5j2hXlD1qfKfTO_jylbLTw7HaFBNwhtCsKqU-8=.13bd9e2f-515a-45e8-8597-110dbafc0018@github.com>

> Merge jdk8u372-b01

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/40/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/40/files/59178cdb..59178cdb

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=40&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=40&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/40.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/40/head:pull/40

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/40

From andrew at openjdk.org  Sat Jun 14 01:26:46 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 14 Jun 2025 01:26:46 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 78 new changesets
Message-ID: <ec2e57cb-0aff-483e-8a14-043b4f8f0270@openjdk.org>

Changeset: 3b1bbef3
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-11-30 14:54:29 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3b1bbef37be666017bd86b725e1e218dd11f5da6

8297739: Bump update version of OpenJDK: 8u372

Reviewed-by: sgehwolf

! .jcheck/conf
! common/autoconf/version-numbers

Changeset: 7eb2803b
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-11-30 20:08:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/7eb2803b5b3c769827cf02cc40a15b13b74bf588

8230305: Cgroups v2: Container awareness
8216366: Add rationale to PER_CPU_SHARES define
8229202: Docker reporting causes secondary crashes in error handling
8232207: Linux os::available_memory re-reads cgroup configuration on every invocation
8254997: Remove unimplemented OSContainer::read_memory_limit_in_bytes

Implement Cgroups v2 container awareness in hotspot

Reviewed-by: sgehwolf, andrew
Backport-of: d462a6b5c9bd3dae5257cca42ea38c19cb742e3c

+ hotspot/src/os/linux/vm/cgroupSubsystem_linux.cpp
+ hotspot/src/os/linux/vm/cgroupSubsystem_linux.hpp
+ hotspot/src/os/linux/vm/cgroupV1Subsystem_linux.cpp
+ hotspot/src/os/linux/vm/cgroupV1Subsystem_linux.hpp
+ hotspot/src/os/linux/vm/cgroupV2Subsystem_linux.cpp
+ hotspot/src/os/linux/vm/cgroupV2Subsystem_linux.hpp
! hotspot/src/os/linux/vm/osContainer_linux.cpp
! hotspot/src/os/linux/vm/osContainer_linux.hpp
! hotspot/src/os/linux/vm/os_linux.hpp
! hotspot/test/runtime/containers/docker/TestCPUAwareness.java

Changeset: e9acfceb
Branch: master
Author:    Alexey Pavlyutkin <apavlyutkin at azul.com>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2022-12-01 10:24:58 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/e9acfceb354b49a00388a46f7f3172b2d90f0680

8295322: Tests for JDK-8271459 were not backported to 11u

Reviewed-by: phh
Backport-of: 70ddb1b025ce3b8eed4d8ad5af1b1fa4d0e0b015

+ hotspot/test/compiler/c2/TestNegativeStringBuilderCapacity.java

Changeset: 7b548500
Branch: master
Author:    Alexey Pavlyutkin <apavlyutkin at azul.com>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2022-12-01 10:25:56 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/7b5485004616b596e38f1205be76b91aa426ef65

8297329: [8u] hotspot needs to recognise VS2019

Reviewed-by: phh

! hotspot/make/windows/makefiles/compile.make
! hotspot/make/windows/makefiles/sanity.make
! hotspot/make/windows/makefiles/vm.make

Changeset: 918a2ab7
Branch: master
Author:    Alexey Pavlyutkin <apavlyutkin at azul.com>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2022-12-01 10:43:27 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/918a2ab7c505aa5b22b26558b92ef4d7d6d6aeb9

8241087: Build failure with VS 2019 (16.5.0) due to C2039 and C2873

Backport-of: 7166e13838a545b1e75307defc2cfa173dc38d20

! jdk/src/windows/native/sun/windows/awt_DCHolder.cpp
! jdk/src/windows/native/sun/windows/awt_DnDDT.cpp
! jdk/src/windows/native/sun/windows/awt_ole.h

Changeset: 1ec79849
Branch: master
Author:    Alexey Pavlyutkin <apavlyutkin at azul.com>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2022-12-01 11:00:09 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1ec79849c25aed9fa7f71c6316da62d1441abbaa

8242468: VS2019 build missing vcruntime140_1.dll

Reviewed-by: phh
Backport-of: 2548ed31aeb255a61644885c501667a74f90ebc7

! common/autoconf/basics.m4
! common/autoconf/generated-configure.sh
! common/autoconf/spec.gmk.in
! common/autoconf/toolchain_windows.m4
! jdk/make/CopyFiles.gmk
! jdk/make/lib/CoreLibraries.gmk
! jdk/src/windows/bin/java_md.c
! make/devkit/createWindowsDevkit2019.sh

Changeset: fcd3c9ce
Branch: master
Author:    Alexey Pavlyutkin <apavlyutkin at azul.com>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2022-12-01 13:16:30 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/fcd3c9ce6b503e63f2a898467d65893a7c703734

8247676: vcruntime140_1.dll is not needed on 32-bit Windows

Reviewed-by: phh
Backport-of: 78ba1e5a5f69909ddf073cb014784127b09dd47d

! common/autoconf/generated-configure.sh
! common/autoconf/toolchain_windows.m4

Changeset: 8356d04a
Branch: master
Author:    Roman Marchenko <rmarchenko at openjdk.org>
Committer: Andrew Brygin <bae at openjdk.org>
Date:      2022-12-01 15:25:12 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/8356d04acbbb3c31c4baea034fce2f7bc0691847

8295982: Failure in sun/security/tools/keytool/WeakAlg.java - ks: The process cannot access the file because it is being used by another process

Reviewed-by: dcherepanov

! jdk/test/sun/security/tools/keytool/WeakAlg.java

Changeset: 77403ed2
Branch: master
Author:    Victor Rudometov <vrudomet at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-12-01 18:03:20 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/77403ed2500d1560ca71e5db1dbe49401697f7f7

8286624: Regression Test CoordinateTruncationBug.java fails on OL8.3

Backport-of: 7964440dd3274b84713c0debe1846092bb6d6d68

+ jdk/test/sun/java2d/SunGraphics2D/CoordinateTruncationBug.java

Changeset: 55101454
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-12-02 08:19:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/5510145420117f1f3c4a933021c3675cd2a99051

8226236: win32: gc/metaspace/TestCapacityUntilGCWrapAround.java fails

Backport-of: 038f58d4f0782f885547d2b052a47fdf2229cfe3

! hotspot/src/share/vm/memory/metaspace.cpp

Changeset: c9007cd4
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-05 04:14:16 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c9007cd44db764fbd791218c6f38491f38af70c2

8231111: Cgroups v2: Rework Metrics in java.base so as to recognize unified hierarchy
8275713: TestDockerMemoryMetrics test fails on recent runc
8228585: jdk/internal/platform/cgroup/TestCgroupMetrics.java - NumberFormatException because of large long values (memory limit_in_bytes)

Reviewed-by: sgehwolf, andrew
Backport-of: 4def210a22faaec6b47912dd314e6365ea48d28f

! jdk/make/lib/CoreLibraries.gmk
! jdk/make/mapfiles/libjava/mapfile-linux
+ jdk/src/linux/classes/jdk/internal/platform/CgroupInfo.java
+ jdk/src/linux/classes/jdk/internal/platform/CgroupMetrics.java
+ jdk/src/linux/classes/jdk/internal/platform/CgroupSubsystem.java
+ jdk/src/linux/classes/jdk/internal/platform/CgroupSubsystemController.java
+ jdk/src/linux/classes/jdk/internal/platform/CgroupSubsystemFactory.java
+ jdk/src/linux/classes/jdk/internal/platform/CgroupUtil.java
+ jdk/src/linux/classes/jdk/internal/platform/CgroupV1Metrics.java
+ jdk/src/linux/classes/jdk/internal/platform/CgroupV1MetricsImpl.java
+ jdk/src/linux/classes/jdk/internal/platform/cgroupv1/CgroupV1MemorySubSystemController.java
+ jdk/src/linux/classes/jdk/internal/platform/cgroupv1/CgroupV1Subsystem.java
+ jdk/src/linux/classes/jdk/internal/platform/cgroupv1/CgroupV1SubsystemController.java
- jdk/src/linux/classes/jdk/internal/platform/cgroupv1/Metrics.java
- jdk/src/linux/classes/jdk/internal/platform/cgroupv1/SubSystem.java
+ jdk/src/linux/classes/jdk/internal/platform/cgroupv2/CgroupV2Subsystem.java
+ jdk/src/linux/classes/jdk/internal/platform/cgroupv2/CgroupV2SubsystemController.java
+ jdk/src/linux/native/jdk/internal/platform/cgroupv1/CgroupMetrics.c
- jdk/src/linux/native/jdk/internal/platform/cgroupv1/Metrics.c
! jdk/src/share/classes/jdk/internal/platform/Metrics.java
! jdk/src/share/classes/sun/launcher/LauncherHelper.java
! jdk/src/solaris/classes/sun/management/OperatingSystemImpl.java
! jdk/test/jdk/internal/platform/cgroup/TestCgroupMetrics.java
+ jdk/test/jdk/internal/platform/cgroup/TestCgroupSubsystemController.java
! jdk/test/jdk/internal/platform/docker/MetricsCpuTester.java
! jdk/test/jdk/internal/platform/docker/MetricsMemoryTester.java
! jdk/test/jdk/internal/platform/docker/TestDockerCpuMetrics.java
! jdk/test/jdk/internal/platform/docker/TestDockerMemoryMetrics.java
! jdk/test/lib/jdk/test/lib/containers/cgroup/CPUSetsReader.java
+ jdk/test/lib/jdk/test/lib/containers/cgroup/CgroupMetricsTester.java
! jdk/test/lib/jdk/test/lib/containers/cgroup/MetricsTester.java
+ jdk/test/lib/jdk/test/lib/containers/cgroup/MetricsTesterCgroupV1.java
+ jdk/test/lib/jdk/test/lib/containers/cgroup/MetricsTesterCgroupV2.java

Changeset: 21a12369
Branch: master
Author:    Ao Qi <aoqi at openjdk.org>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-12-05 13:51:02 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/21a123695dc17bd7618e9059ec9453bdec5318b0

8296480: java/security/cert/pkix/policyChanges/TestPolicy.java is failing

Backport-of: b6ea69c06aca7f013e26596cebd039960c5b4d34

! jdk/test/java/security/cert/pkix/policyChanges/TestPolicy.java

Changeset: 4388fa8e
Branch: master
Author:    Ao Qi <aoqi at openjdk.org>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-12-05 13:53:20 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/4388fa8e9d00248dce0e1af7fa90e55eb74b43d6

8296485: BuildEEBasicConstraints.java test fails with SunCertPathBuilderException

Reviewed-by: phh
Backport-of: 520db1eeb18797c782ddfad90467e19bbdd424ac

! jdk/test/java/security/cert/CertPathBuilder/targetConstraints/BuildEEBasicConstraints.java

Changeset: a983a003
Branch: master
Author:    Joshua Cao <joshcao at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-12-05 18:22:38 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/a983a003976a98ca4d2041b2550d789792b71801

6829250: Reg test: java/awt/Toolkit/ScreenInsetsTest/ScreenInsetsTest.java fails in Windows

Reviewed-by: phh
Backport-of: f56396f1689ea7e13dea78dcb1d14dcce94da898

! jdk/test/java/awt/Toolkit/ScreenInsetsTest/ScreenInsetsTest.java

Changeset: 72269ee9
Branch: master
Author:    Victor Rudometov <vrudomet at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-12-05 18:45:15 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/72269ee95f2aaea02bf818b4e84cecc5ad23be38

8296632: Write a test to verify the content change of TextArea sends TextEvent

Backport-of: 14592778b19af792f7394be381c3e23bf216372d

+ jdk/test/java/awt/event/ComponentEvent/TextAreaTextEventTest.java

Changeset: 2abc2062
Branch: master
Author:    Ben Taylor <btaylor at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-12-05 23:16:17 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/2abc2062b6706d7cdd01a9d95c46de3a63e9c763

8257620: Do not use objc_msgSend_stret to get macOS version

Reviewed-by: akozlov, phh, omikhaltcova
Backport-of: d4c7db5060978302382549246f9ad6831f19377d

! jdk/src/solaris/native/java/lang/java_props_macosx.c

Changeset: d13b8131
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2022-12-06 03:29:04 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d13b8131bf6612de0a83d6e4721d554a74c2f664

8284690: [macos] VoiceOver : Getting java.lang.IllegalArgumentException: Invalid location on Editable JComboBox

Backport-of: ebfa27b9f06aee8ceceabc564a78a351903ce9a1

! jdk/src/macosx/classes/sun/lwawt/macosx/CAccessibleText.java

Changeset: da681cf9
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2022-12-06 03:36:02 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/da681cf9103486eb33319349fa800e79241aea44

8296496: Overzealous check in sizecalc.h prevents large memory allocation

Backport-of: 84e12244a4ff82b3307a5ffe6fbe9dded7b08d86

! jdk/src/share/native/common/sizecalc.h

Changeset: 2ad48cb3
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-06 05:29:01 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/2ad48cb3ca0e79346d74dccb5c172a7f017c5c6d

8294767: 8u contains two copies of test/../FileUtils.java, one uses JDK9+ features

Reviewed-by: sgehwolf, andrew

- jdk/test/lib/jdk/test/lib/util/FileUtils.java

Changeset: 3f44b9bf
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2022-12-06 05:44:47 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3f44b9bfdd447c3cca889631e529ab57a1310e95

8296957: One more cast in SAFE_SIZE_NEW_ARRAY2

Backport-of: fb6c992f325981c42c7f75109a6c9db7ca8715d8

! jdk/src/share/native/common/sizecalc.h

Changeset: 40e7b68f
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-12-06 17:55:49 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/40e7b68f2ed4bcba5c270856eadc15720a9d354e

8295952: Problemlist existing compiler/rtm tests also on x86

Reviewed-by: sgehwolf
Backport-of: 3f2f128af6ec2f9097af7758bfd41aeaa4354d40

! hotspot/test/ProblemList.txt

Changeset: 633acfab
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-07 02:10:48 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/633acfabf29e73b9f9cffedd2604c6fa652b9ebe

8253714: [cgroups v2] Soft memory limit incorrectly using memory.high

The early implementation of cgroups v2 support was done with
crun 0.8 and it contained a bug which set memory.high over
memory.low when --memory-reservation was being used as a CLI
option.

This bug has been fixed in later crun versions, starting with
crun 0.11. Use memory.low in OpenJDK as well.

Reviewed-by: andrew
Backport-of: ff6843ca4842498791061f924c545fa9469cc1dc

! hotspot/src/os/linux/vm/cgroupV2Subsystem_linux.cpp
! jdk/src/linux/classes/jdk/internal/platform/cgroupv2/CgroupV2Subsystem.java
! jdk/test/lib/jdk/test/lib/containers/cgroup/MetricsTesterCgroupV2.java

Changeset: 97d00caf
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-12-07 15:03:28 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/97d00caf3d79f534da431d373dfbae8e93f735cd

8253727: [cgroups v2] Memory and swap limits reported incorrectly

Account for interface files for swap and memory being reported independently.
The cgroup v1-like value is now reported by adding the memory.max value to
the memory.swap.max value, and memory.current and memory.swap.current
respectively.

Reviewed-by: andrew
Backport-of: 3e96721cd9d1e1f46711e70dfc22064bab212b64

! hotspot/src/os/linux/vm/cgroupV2Subsystem_linux.cpp
! jdk/src/linux/classes/jdk/internal/platform/cgroupv2/CgroupV2Subsystem.java
! jdk/test/lib/jdk/test/lib/containers/cgroup/MetricsTesterCgroupV2.java

Changeset: 362cf762
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-08 20:20:54 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/362cf7628b73f4112bee464cea52a8a29e6671ce

8237479: 8230305 causes slowdebug build failure

Declare methods as pure virtual.

Reviewed-by: sgehwolf, andrew
Backport-of: 4ca06995855b5c974321d7b3622d661b8d27ba76

! hotspot/src/os/linux/vm/cgroupSubsystem_linux.hpp

Changeset: c84a5b28
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-12-12 09:42:32 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c84a5b2857aacff54ad0bf31d4bdd3747451d92f

8298307: Enable hotspot/tier1 for 32-bit builds in GHA for 8u

Reviewed-by: sgehwolf

! .github/workflows/submit.yml

Changeset: 989d68f1
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-12 14:09:53 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/989d68f1e1d046829d0b19aadb3453febd0566db

8239785: Cgroups: Incorrect detection logic on old systems in hotspot

Return NULL subsystem if no cgroup controllers are mounted.

Reviewed-by: sgehwolf
Backport-of: add18914fb1294999877b563c734a25b4c17b922

! hotspot/src/os/linux/vm/cgroupSubsystem_linux.cpp
! hotspot/src/os/linux/vm/cgroupSubsystem_linux.hpp
! hotspot/src/share/vm/prims/whitebox.cpp
! hotspot/src/share/vm/prims/whitebox.hpp
+ hotspot/test/runtime/containers/cgroup/CgroupSubsystemFactory.java
! hotspot/test/testlibrary/com/oracle/java/testlibrary/Utils.java
! hotspot/test/testlibrary/whitebox/sun/hotspot/WhiteBox.java

Changeset: 4ab80ff5
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-12 20:07:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/4ab80ff59d51d15432ea2378ae8138d10dccd934

8244500: jtreg test error in test/hotspot/jtreg/containers/docker/TestMemoryAwareness.java

When the kernel doesn't support swap limits, expect host values instead.

Reviewed-by: sgehwolf
Backport-of: fb5132254d834ba01a4b65ce64143843e83c674e

! hotspot/test/runtime/containers/docker/CheckOperatingSystemMXBean.java

Changeset: 9cd39a40
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-13 11:11:35 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/9cd39a4018c2126f4cccde07be9482c7a03ce663

8240189: [TESTBUG] Some cgroup tests are failing after JDK-8231111

Reviewed-by: sgehwolf
Backport-of: c92adf41587767e9c5c8e116cfaeb375d36928aa

! jdk/test/jdk/internal/platform/docker/MetricsCpuTester.java
! jdk/test/jdk/internal/platform/docker/MetricsMemoryTester.java
! jdk/test/lib/jdk/test/lib/containers/cgroup/CgroupMetricsTester.java
! jdk/test/lib/jdk/test/lib/containers/cgroup/MetricsTesterCgroupV1.java
! jdk/test/lib/jdk/test/lib/containers/cgroup/MetricsTesterCgroupV2.java

Changeset: a318e006
Branch: master
Author:    Ao Qi <aoqi at openjdk.org>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-12-13 14:51:50 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/a318e0067c7bceae124c39794400685b956e37d2

8072770: [TESTBUG] Some Introspector tests fail with a Java heap bigger than 4GB

Backport-of: 137f13474383d72a0d2e392bc2f8926ad69d3da6

! jdk/test/java/beans/Introspector/7064279/Test7064279.java
! jdk/test/java/beans/Introspector/Test7172865.java
! jdk/test/java/beans/Introspector/Test7195106.java

Changeset: b0826174
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-13 15:45:35 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/b0826174b78d2acf758b1df8c3233a4885eb1715

8239559: Cgroups: Incorrect detection logic on some systems

Adjust heuristic with cgroup mounts according to mountinfo

Reviewed-by: sgehwolf
Backport-of: 53ee0c4963007b86db7979312b81f990e6ce271a

! jdk/src/linux/classes/jdk/internal/platform/CgroupSubsystemFactory.java
+ jdk/test/jdk/internal/platform/cgroup/TestCgroupSubsystemFactory.java
! jdk/test/lib/testlibrary/jdk/testlibrary/Utils.java

Changeset: c7599bd2
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-13 19:30:15 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c7599bd217bf4ba638456d9c58c69b33b405199b

8197408: Bad pointer comparison and small cleanup in os_linux.cpp

Reviewed-by: sgehwolf
Backport-of: 5287d9a366791793b644d765ece783496b011119

! hotspot/src/os/linux/vm/os_linux.cpp
+ hotspot/test/runtime/containers/cgroup/PlainRead.java

Changeset: 537ff942
Branch: master
Author:    Leslie Zhai <lzhai at openjdk.org>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-12-14 10:05:07 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/537ff942252e33831446d285800e5765a84bc19c

8196196: Headful tests should not be run in headless mode

Reviewed-by: sgehwolf
Backport-of: 7578044e7107c1914d85894cef5eb712c223252a

! jdk/test/java/awt/FileDialog/FileDialogMemoryLeak/FileDialogLeakTest.java
! jdk/test/java/awt/Gtk/GtkVersionTest/GtkVersionTest.java
! jdk/test/java/awt/JAWT/JAWT.sh
! jdk/test/java/awt/Toolkit/BadDisplayTest/BadDisplayTest.java
! jdk/test/java/awt/Toolkit/DesktopProperties/rfe4758438.java
! jdk/test/java/awt/TrayIcon/SystemTrayInstance/SystemTrayInstanceTest.java
! jdk/test/java/awt/print/PrinterJob/PrintCrashTest.java
! jdk/test/javax/swing/GroupLayout/7071166/bug7071166.java
! jdk/test/javax/swing/JComboBox/6632953/bug6632953.java
! jdk/test/javax/swing/JComboBox/7082443/bug7082443.java
! jdk/test/javax/swing/JFileChooser/6489130/bug6489130.java
! jdk/test/javax/swing/JFileChooser/8080628/bug8080628.java
! jdk/test/javax/swing/Security/6657138/bug6657138.java
! jdk/test/javax/swing/plaf/metal/MetalUtils/bug6190373.java

Changeset: 5b01ebb6
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-15 09:56:25 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/5b01ebb6aaaa36cc54f14a260dec5a68077aa9e8

8278951: containers/cgroup/PlainRead.java fails on Ubuntu 21.10

Reviewed-by: sgehwolf
Backport-of: 35172cdaf38d83cd3ed57a5436bf985dde2d802b

! hotspot/src/os/linux/vm/cgroupSubsystem_linux.hpp
! hotspot/src/os/linux/vm/cgroupV2Subsystem_linux.cpp

Changeset: d9db01cc
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-15 10:54:24 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d9db01ccc6253429b62aff71dea54be38be121c5

8252359: HotSpot Not Identifying it is Running in a Container

Backport-of: 76f0588aaf265439a589cceb924e3ea9d3fda8f1

! hotspot/src/os/linux/vm/cgroupSubsystem_linux.cpp
! hotspot/test/runtime/containers/cgroup/CgroupSubsystemFactory.java

Changeset: 2bee6454
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-15 13:46:36 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/2bee6454e81edc18c66f28504dd5502adedf24ab

8253435: Cgroup: 'stomping of _mount_path' crash if manually mounted cpusets exist

Reviewed-by: sgehwolf
Backport-of: 0054c15f60cce6470be05d29bfacbdb74cfb7bc9

! hotspot/src/os/linux/vm/cgroupSubsystem_linux.cpp
! hotspot/test/runtime/containers/cgroup/CgroupSubsystemFactory.java

Changeset: d2df91dc
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-15 14:58:16 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d2df91dc5cbb83052c9e9f1a1460abf1c9900423

8245543: Cgroups: Incorrect detection logic on some systems (still reproducible)

Reviewed-by: sgehwolf
Backport-of: 2bbf8a2a964a64d88298a3dd184459af506e58ed

! hotspot/src/os/linux/vm/cgroupSubsystem_linux.cpp
! hotspot/test/runtime/containers/cgroup/CgroupSubsystemFactory.java
! jdk/src/linux/classes/jdk/internal/platform/CgroupSubsystemFactory.java
! jdk/test/jdk/internal/platform/cgroup/TestCgroupSubsystemFactory.java

Changeset: 4dfc7421
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-15 18:01:19 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/4dfc7421e8b934f503837659396e21cb4e29e694

8253939: [TESTBUG] Increase coverage of the cgroups detection code

Reviewed-by: sgehwolf
Backport-of: 42fc15899115ca61151bbee96b5580d4e4252beb

! hotspot/test/runtime/containers/cgroup/CgroupSubsystemFactory.java
! jdk/test/jdk/internal/platform/cgroup/TestCgroupSubsystemFactory.java

Changeset: b2619cf5
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-15 18:22:37 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/b2619cf5338fcc536aaa161e44f352e3578513ea

8253797: [cgroups v2] Account for the fact that swap accounting is disabled on some systems

Backport-of: 669361117d30c9904813b6f728714f8d6abe8484

! jdk/src/linux/classes/jdk/internal/platform/cgroupv2/CgroupV2Subsystem.java
! jdk/test/lib/jdk/test/lib/containers/cgroup/MetricsTesterCgroupV2.java

Changeset: 1b04ffe9
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-16 10:07:48 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1b04ffe97c7be3bdcd506e1f69c3eaf4fdd029d0

8254001: [Metrics] Enhance parsing of cgroup interface files for version detection

Reviewed-by: sgehwolf
Backport-of: a50725db2ab621e1a17cb5505f78e4bc73972a27

! jdk/src/linux/classes/jdk/internal/platform/CgroupInfo.java
! jdk/src/linux/classes/jdk/internal/platform/CgroupSubsystemFactory.java
! jdk/src/linux/classes/jdk/internal/platform/cgroupv1/CgroupV1Subsystem.java
! jdk/src/linux/classes/jdk/internal/platform/cgroupv2/CgroupV2Subsystem.java
! jdk/test/jdk/internal/platform/cgroup/TestCgroupSubsystemFactory.java

Changeset: d7b14be2
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-16 10:44:50 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d7b14be2b944d528679cdc447357dfda82fe3238

8262379: Add regression test for JDK-8257746

Reviewed-by: sgehwolf
Backport-of: 4c9adce20d114a3df629fa8c72d88795039ae69a

! jdk/test/jdk/internal/platform/cgroup/TestCgroupSubsystemFactory.java

Changeset: d039c8de
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-16 11:34:19 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d039c8de57bc9ed2263538189547082aee05e599

8291570: [TESTBUG] Part of JDK-8250984 absent from 11u

Reviewed-by: andrew
Backport-of: 2f0f34ce4cbe0f51a1bcc3145eb4d7ade9287d5d

! hotspot/test/runtime/containers/cgroup/PlainRead.java

Changeset: 0662db27
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-16 14:30:24 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0662db27bf72d15b2fdd7ed21ea675d40531aef5

8252957: Wrong comment in CgroupV1Subsystem::cpu_quota

The comment is wrong. The 'us' in 'cpu.cfs_quota_us' stands for
microseconds, which is read verbatim. Similarly for cgroups v2
all units in 'cpu.max' are in microseconds.

Backport-of: 5166094647f8bfae32ef4bbde2e40f68e073b595

! hotspot/src/os/linux/vm/cgroupV1Subsystem_linux.cpp
! hotspot/src/os/linux/vm/cgroupV2Subsystem_linux.cpp

Changeset: 99ff02e4
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-16 16:57:19 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/99ff02e404778c69cc7c6d3bd532c0326202d91f

8266391: Replace use of reflection in jdk.internal.platform.Metrics

Reviewed-by: sgehwolf
Backport-of: 3544a9d0e4a071ad9c82aa17ab113e0101b4020b

+ jdk/src/linux/classes/jdk/internal/platform/SystemMetrics.java
+ jdk/src/macosx/classes/jdk/internal/platform/SystemMetrics.java
! jdk/src/share/classes/jdk/internal/platform/Metrics.java
+ jdk/src/unix/classes/jdk/internal/platform/SystemMetrics.java
+ jdk/src/windows/classes/jdk/internal/platform/SystemMetrics.java

Changeset: d6101df2
Branch: master
Author:    Paul Hohensee <phh at openjdk.org>
Date:      2022-12-18 16:43:41 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d6101df29c7069326d26628f131f0ef8882ad68b

8254717: isAssignableFrom checks in KeyFactorySpi.engineGetKeySpec appear to be backwards

Reviewed-by: andrew
Backport-of: a777e82cd81fb5f02b09c4917b2a44f94c603939

! jdk/src/share/classes/com/sun/crypto/provider/DESKeyFactory.java
! jdk/src/share/classes/com/sun/crypto/provider/DESedeKeyFactory.java
! jdk/src/share/classes/com/sun/crypto/provider/DHKeyFactory.java
! jdk/src/share/classes/sun/security/ec/ECKeyFactory.java
! jdk/src/share/classes/sun/security/pkcs11/P11DHKeyFactory.java
! jdk/src/share/classes/sun/security/pkcs11/P11DSAKeyFactory.java
! jdk/src/share/classes/sun/security/pkcs11/P11ECKeyFactory.java
! jdk/src/share/classes/sun/security/pkcs11/P11KeyFactory.java
! jdk/src/share/classes/sun/security/pkcs11/P11RSAKeyFactory.java
! jdk/src/share/classes/sun/security/pkcs11/P11SecretKeyFactory.java
! jdk/src/share/classes/sun/security/provider/DSAKeyFactory.java
! jdk/src/share/classes/sun/security/rsa/RSAKeyFactory.java
+ jdk/test/java/security/KeyFactory/KeyFactoryGetKeySpecForInvalidSpec.java
! jdk/test/sun/security/rsa/TestKeyFactory.java
! jdk/test/sun/security/rsa/pss/TestPSSKeySupport.java

Changeset: 9f76da9c
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-19 09:20:32 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/9f76da9cab5d58aeaaf52e99364616a1e96993bf

8284756: [11u] Remove unused isUseContainerSupport in CgroupV1Subsystem

The actual native method in use is in CgroupsMetrics after JDK-8231111

Backport-of: 8482b376d6630649728929158233984b11d0e2f7

! jdk/src/linux/classes/jdk/internal/platform/cgroupv1/CgroupV1Subsystem.java

Changeset: 06546d78
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-19 11:12:23 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/06546d786ae8cc3e445044ef940cb713494a5a95

8284102: [TESTBUG] [11u] Retroactively add regression test for JDK-8272124

Reviewed-by: sgehwolf
Backport-of: 245e2f2da0302c9354255219248c2f6793947a6a

! jdk/test/jdk/internal/platform/cgroup/TestCgroupSubsystemFactory.java

Changeset: 78cdc41a
Branch: master
Author:    Vyom Tewari <vtewari at openjdk.org>
Committer: Kumar Srinivasan <ksrini at openjdk.org>
Date:      2022-12-19 15:46:17 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/78cdc41a2dcbe93ba594728bd5115c08be43686e

8234484: Add ability to configure third port for remote JMX

Reviewed-by: ksrini
Backport-of: f129cc43283a18cb5afdd1416b09691a636a7758

! jdk/src/share/classes/sun/management/AgentConfigurationError.java
! jdk/src/share/classes/sun/management/jmxremote/ConnectorBootstrap.java
! jdk/src/share/lib/management/management.properties

Changeset: b4ef3d33
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2022-12-19 16:30:48 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/b4ef3d338a67baae34933c76aaea94fb0a12b631

8292083: Detected container memory limit may exceed physical machine memory

Reviewed-by: sgehwolf
Backport-of: f694f8a7671002559e7d23fdb65d5e9c768f9c03

! hotspot/src/os/linux/vm/cgroupSubsystem_linux.cpp
! hotspot/src/os/linux/vm/cgroupV1Subsystem_linux.cpp
! hotspot/src/os/linux/vm/cgroupV1Subsystem_linux.hpp
! hotspot/src/os/linux/vm/osContainer_linux.cpp
! hotspot/src/os/linux/vm/os_linux.cpp
! hotspot/src/os/linux/vm/os_linux.hpp
! hotspot/test/runtime/containers/docker/TestMemoryAwareness.java

Changeset: b4a745d2
Branch: master
Author:    Kurashige Taizo <kurashige.taizo at fujitsu.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2022-12-23 09:46:29 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/b4a745d2f8b7ba78c51b4a4ec837cd636a93fa51

8284977: MetricsTesterCgroupV2.getLongValueEntryFromFile fails when named value doesn't exist

Backport-of: 444a0d98ac06ab043e3b11281234fd515abff302

! jdk/test/lib/jdk/test/lib/containers/cgroup/MetricsTesterCgroupV2.java

Changeset: 47090d6f
Branch: master
Author:    Alexey Pavlyutkin <apavlyutkin at azul.com>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2022-12-23 13:15:25 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/47090d6f9572adec1f31260702ff0039a7a70ee4

8297996: [8u] generated images are broken due to renaming of MSVC runtime DLL's

Reviewed-by: phh

! common/autoconf/basics_windows.m4
! common/autoconf/generated-configure.sh
! jdk/make/Images.gmk

Changeset: c5751e60
Branch: master
Author:    Dan Lutker <lutkerd at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-12-27 20:28:27 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c5751e60a8f2a9e5f959b1fbc7fb2d91cd20ece4

8229182: [TESTBUG] runtime/containers/docker/TestMemoryAwareness.java test fails on SLES12

Reviewed-by: phh
Backport-of: a41b9a71acdf69b78104677a1ca899ff36293a60

! hotspot/test/runtime/containers/docker/TestMemoryAwareness.java
! hotspot/test/testlibrary/com/oracle/java/testlibrary/DockerRunOptions.java
! hotspot/test/testlibrary/com/oracle/java/testlibrary/DockerTestUtils.java

Changeset: 7ad517dd
Branch: master
Author:    Dmitry Cherepanov <dcherepanov at openjdk.org>
Date:      2023-01-05 07:48:45 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/7ad517dd8fdc142827062876da334f53ceb65749

8283277: ISO 4217 Amendment 171 Update

Reviewed-by: phh, andrew
Backport-of: c4dc58e12e197562dce90c0027aa74c29047cea6

! jdk/src/share/classes/java/util/CurrencyData.properties
! jdk/src/share/classes/sun/util/resources/CurrencyNames.properties
! jdk/test/java/util/Currency/ValidateISO4217.java
! jdk/test/java/util/Currency/tablea1.txt
! jdk/test/sun/text/resources/LocaleData
! jdk/test/sun/text/resources/LocaleDataTest.java

Changeset: 0f698dae
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-01-09 16:14:56 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0f698dae3bfee354de3c9bea32f881b4d7d5c73e

8299548: Fix hotspot/test/runtime/Metaspace/MaxMetaspaceSizeTest.java in 8u

Reviewed-by: phh

! hotspot/test/runtime/Metaspace/MaxMetaspaceSizeTest.java

Changeset: 65fcf619
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2023-01-09 20:36:07 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/65fcf61916526f929c1cc2c1d2971451676fc9e9

8293472: Incorrect container resource limit detection if manual cgroup fs mounts present

Reviewed-by: sgehwolf
Backport-of: 8f3bbe950fb5a3d9f6cae122209df01df0f342f0

! hotspot/src/os/linux/vm/cgroupSubsystem_linux.cpp
! hotspot/src/os/linux/vm/cgroupSubsystem_linux.hpp
! hotspot/test/runtime/containers/cgroup/CgroupSubsystemFactory.java
! hotspot/test/runtime/containers/docker/TestCPUAwareness.java
! hotspot/test/runtime/containers/docker/TestMemoryAwareness.java

Changeset: ca685797
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-10 02:47:21 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ca6857979dbc90b9f9ecbbea6b55727bc4540a97

8289549: ISO 4217 Amendment 172 Update

Reviewed-by: dcherepanov
Backport-of: 03a5c254d36a51d478b3c1042f0fb6f2c7453dc6

! jdk/src/share/classes/java/util/CurrencyData.properties
! jdk/test/java/util/Currency/tablea1.txt

Changeset: 7c51dae1
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-10 04:30:28 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/7c51dae174c4df694b3d9cb072f03ea455066bfd

8294307: ISO 4217 Amendment 173 Update

Reviewed-by: dcherepanov
Backport-of: e3eccbcbc2e27921c058d43b81fb113d10be2dab

! jdk/src/share/classes/java/util/CurrencyData.properties
! jdk/test/java/util/Currency/tablea1.txt

Changeset: 1694a3aa
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-10 18:56:11 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1694a3aa8fd28739889cca0356e1ec4b4db4b8fb

8296239: ISO 4217 Amendment 174 Update

Reviewed-by: dcherepanov
Backport-of: ff60b348813fd7e32bdda322f345f90311a60207

! jdk/src/share/classes/java/util/CurrencyData.properties
! jdk/test/java/util/Currency/ValidateISO4217.java
! jdk/test/java/util/Currency/tablea1.txt

Changeset: 5a3fc18e
Branch: master
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-01-11 13:09:55 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/5a3fc18e92f3b34ad604b4cb269c08a96c021560

8299804: Fix non-portable code in hotspot shell tests in 8u

Reviewed-by: phh, sgehwolf

! hotspot/test/compiler/criticalnatives/argumentcorruption/Test8167409.sh
! hotspot/test/compiler/floatingpoint/8165673/TestFloatJNIArgs.sh
! hotspot/test/compiler/floatingpoint/8207838/TestFloatSyncJNIArgs.sh
! hotspot/test/runtime/7107135/Test7107135.sh
! hotspot/test/runtime/jni/CallWithJNIWeak/test.sh
! hotspot/test/runtime/jni/ReturnJNIWeak/test.sh

Changeset: 9d954b9f
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-01-11 17:32:50 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/9d954b9ff20185366d394c0971b01fbea70c745f

8289695: [TESTBUG] TestMemoryAwareness.java fails on cgroups v2 and crun

Reviewed-by: andrew
Backport-of: ac6be165196457a26d837760b5f5030fe010d633

! hotspot/test/runtime/containers/docker/TestMemoryAwareness.java

Changeset: a5c3ebe6
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-12 17:44:28 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/a5c3ebe614d5d1595098bb402ae94e6ba5265171

8299439: java/text/Format/NumberFormat/CurrencyFormat.java fails for hr_HR
8299483: ProblemList java/text/Format/NumberFormat/CurrencyFormat.java

Reviewed-by: dcherepanov, sgehwolf
Backport-of: 80eecc50e663155f04dcec1797efb4be4b8ee7b2

! jdk/src/share/classes/sun/util/resources/hr/CurrencyNames_hr_HR.properties
! jdk/test/java/text/Format/NumberFormat/CurrencySymbols.properties

Changeset: 014f21f0
Branch: master
Author:    Leslie Zhai <lzhai at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-01-17 15:40:08 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/014f21f0232b135c978774b8f256edad035ada00

8203485: [freetype] text rotated on 180 degrees is too narrow

Reviewed-by: serb
Backport-of: db67279f08b2db148958a4faafd19a0d50ff8742

! jdk/src/share/native/sun/font/freetypeScaler.c
+ jdk/test/java/awt/font/Rotate/RotatedTextTest.java

Changeset: ddb9a5c4
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-18 15:46:44 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ddb9a5c4625839bdc985ed8d84d216626ef6db55

Merge


Changeset: da57ed1b
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-18 17:38:39 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/da57ed1b0d541803b5e4c0237449b86c9c26e342

Merge


Changeset: a318e48e
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-01-18 18:31:25 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/a318e48e205acd2e15c50afb9c70c4106ed72463

8300014: Some backports placed the tests in the wrong location

Reviewed-by: sgehwolf, phh

= jdk/test/java/awt/print/RemotePrinterStatusRefresh/RemotePrinterStatusRefresh.java
- jdk/test/jdk/java/awt/font/Rotate/RotatedItalicsTest.java

Changeset: 55254644
Branch: master
Author:    Roman Marchenko <rmarchenko at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-01-19 12:55:41 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/55254644f78cc8c67cf6b8bc46cf10676da5fe5e

8065422: Trailing dot in hostname causes TLS handshake to fail with SNI disabled

Reviewed-by: yan, andrew
Backport-of: a95ee5ada230a0177517efd3a417f319066169dd

! jdk/src/share/classes/sun/security/ssl/Utilities.java
! jdk/src/share/classes/sun/security/ssl/X509TrustManagerImpl.java
+ jdk/test/javax/net/ssl/ServerName/EndingDotHostname.java
+ jdk/test/javax/net/ssl/templates/SSLExampleCert.java

Changeset: 8d2f7e0c
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2023-01-19 14:34:12 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/8d2f7e0ccb2bf6c3d5bccb35aef39236e5c157d3

8292541: [Metrics] Reported memory limit may exceed physical machine memory
8300119: CgroupMetrics.getTotalMemorySize0() can report invalid results on 32 bit systems

Reviewed-by: sgehwolf
Backport-of: 9a0d1e7ce86368cdcade713a9e220604f7d77ecf

! hotspot/test/runtime/containers/docker/TestMemoryAwareness.java
! jdk/make/mapfiles/libjava/mapfile-linux
! jdk/src/linux/classes/jdk/internal/platform/CgroupMetrics.java
! jdk/src/linux/native/jdk/internal/platform/cgroupv1/CgroupMetrics.c

Changeset: 75fd39f0
Branch: master
Author:    Roman Marchenko <rmarchenko at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-01-19 15:41:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/75fd39f05e4c090192a5eca1fbdf2b6d1993fc4a

8282398: EndingDotHostname.java test fails because SSL cert expired

Reviewed-by: yan, andrew
Backport-of: afd4bcbc1d1b2a8a1c29005878c8e06c662a1f6e

! jdk/test/javax/net/ssl/ServerName/EndingDotHostname.java
! jdk/test/javax/net/ssl/templates/SSLExampleCert.java

Changeset: a5bd9018
Branch: master
Author:    Jonathan Dowland <jdowland at openjdk.org>
Date:      2023-01-24 10:41:06 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/a5bd9018d5671f2399272b680e83239154443b11

8293540: [Metrics] Incorrectly detected resource limits with additional cgroup fs mounts

Reviewed-by: sgehwolf
Backport-of: 6d83482a6b5f1898514fd450d8143dbfef57e362

! hotspot/test/runtime/containers/docker/TestMemoryAwareness.java
! jdk/src/linux/classes/jdk/internal/platform/CgroupSubsystemFactory.java
! jdk/test/jdk/internal/platform/cgroup/TestCgroupSubsystemFactory.java
+ jdk/test/jdk/internal/platform/docker/TestDockerBasic.java
! jdk/test/jdk/internal/platform/docker/TestDockerCpuMetrics.java
! jdk/test/jdk/internal/platform/docker/TestDockerMemoryMetrics.java

Changeset: d0cbcc51
Branch: master
Author:    Zdenek Zambersky <zzambers at openjdk.org>
Date:      2023-01-27 14:02:27 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d0cbcc5101f166b0469b889ef6f05b2925f0760c

8301122: [8u] Fix unreliable vs2010 download link

Reviewed-by: phh

! make/conf/test-dependencies

Changeset: 8192d03b
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-01-27 19:37:09 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/8192d03b0fad34f745addde9408f4aa301dbebef

8293767: AWT test TestSinhalaChar.java has old SCCS markings

Backport-of: 141d5f5deec488531e410af875c781f4b70490da

! jdk/test/java/awt/font/TextLayout/TestSinhalaChar.java

Changeset: c3c871ee
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-01-27 19:41:44 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c3c871eeb1767ad68c26cdf4473cf354149b492a

8159135: [PIT] javax/swing/JMenuItem/8152981/MenuItemIconTest.java always fail

Backport-of: a222aedf0fa1961e902db35cbe4145623c6af999

! jdk/test/javax/swing/JMenuItem/8152981/MenuItemIconTest.java

Changeset: 5274069b
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-01-27 19:48:48 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/5274069b5258c91cf258f3554a6c131775ec99c6

8196467: javax/swing/JInternalFrame/Test6325652.java fails

Backport-of: be762d7ac85910bffd7fd8e91e04d81961c35966

! jdk/test/javax/swing/JInternalFrame/Test6325652.java

Changeset: 92c9aed6
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-01-27 20:09:37 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/92c9aed66cde03c3b4f3188b2ec64ea531316bbd

8039888: [TEST_BUG] keyboard garbage after javax/swing/plaf/windows/WindowsRootPaneUI/WrongAltProcessing/WrongAltProcessing.java

Backport-of: cd8cd68e09370fbf0c3509deaee381417dd12533

! jdk/test/javax/swing/plaf/windows/WindowsRootPaneUI/WrongAltProcessing/WrongAltProcessing.java

Changeset: 85050ef8
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-01-27 20:13:10 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/85050ef8db4209158e6bb37628eae326dbdcac20

7001973: java/awt/Graphics2D/CopyAreaOOB.java fails

Backport-of: 22b7295e75d3bc7ba2c2cd7b871bb2bb5bf290eb

! jdk/test/sun/java2d/OpenGL/CopyAreaOOB.java

Changeset: dd8dd7b2
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-01-27 20:17:10 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/dd8dd7b20846d18865cdfb3e26c15c8f153b1a09

8042098: [TESTBUG] Test sun/java2d/AcceleratedXORModeTest.java fails on Windows

Backport-of: b5769155b4bf453d65c43921dbcae4d115f17df7

! jdk/test/sun/java2d/AcceleratedXORModeTest.java

Changeset: 456d7aca
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-01-27 20:21:30 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/456d7aca8cc4ccc7fe9330bca92dda0b4ba0d8c0

8239827: The test OpenByUNCPathNameTest.java should be changed to be manual

Backport-of: 7cc3ba5f9b188e5dd298dbcde3934d08b6101032

! jdk/test/java/awt/Desktop/OpenByUNCPathNameTest/OpenByUNCPathNameTest.java

Changeset: f1426189
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-01-27 20:25:19 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f14261896825ca5aa14099576a10183f4476508d

8075964: Test java/awt/Mouse/TitleBarDoubleClick/TitleBarDoubleClick.html fails intermittently with timeout error

Backport-of: b0fddb9f8045cca10b4e757d8d187af7fb117405

! jdk/test/java/awt/Mouse/TitleBarDoubleClick/TitleBarDoubleClick.java

Changeset: 59178cdb
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-13 22:52:13 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/59178cdb956843e650c5a3540cf96d52954ad44d

Merge jdk8u372-b01

Added tag jdk8u372-b01 for changeset f14261896825ca5aa14099576a10183f4476508d

! .jcheck/conf
! hotspot/make/windows/makefiles/vm.make
! .jcheck/conf
! hotspot/make/windows/makefiles/vm.make


From andrew at openjdk.org  Sat Jun 14 01:27:07 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 14 Jun 2025 01:27:07 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u372-b01 for changeset
 f1426189
Message-ID: <24861529-fd1c-4209-a73b-45123ccf555c@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-30 14:31:06 +0000

Added tag jdk8u372-b01 for changeset f14261896825ca5aa14099576a10183f4476508d
Changeset: f1426189
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-01-27 20:25:19 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f14261896825ca5aa14099576a10183f4476508d


From andrew at openjdk.org  Sat Jun 14 01:27:26 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 14 Jun 2025 01:27:26 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u372-b01 for
 changeset 59178cdb
Message-ID: <fc29b5c4-993c-4ea1-87a7-f65cc827a8db@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-14 01:17:44 +0000

Added tag shenandoah8u372-b01 for changeset 59178cdb956
Changeset: 59178cdb
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-13 22:52:13 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/59178cdb956843e650c5a3540cf96d52954ad44d


From mdoerr at openjdk.org  Sat Jun 14 11:10:38 2025
From: mdoerr at openjdk.org (Martin Doerr)
Date: Sat, 14 Jun 2025 11:10:38 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
Message-ID: <0-Re4fyQGaSyOl-bYm1h9LT5a0TKKrgJCHquooXOIkQ=.d6044248-6188-4705-b564-90fa3d2d7762@github.com>

On Fri, 13 Jun 2025 19:18:19 GMT, Dean Long <dlong at openjdk.org> wrote:

>> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
>> 
>> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
>> 
>> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
>> 
>> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
>> 
>> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.
>
> Dean Long has updated the pull request incrementally with one additional commit since the last revision:
> 
>   remove is_sigill_not_entrant

Tests look good on our side. I'm only a bit concerned that the lock may become a bottleneck when many Java threads need to patch all nmethods. Especially with ZGC which does that more often. I think we should check performance.

-------------

Marked as reviewed by mdoerr (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25764#pullrequestreview-2928005394

From andrew at openjdk.org  Sat Jun 14 15:30:48 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 14 Jun 2025 15:30:48 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <aOiP6jrxBBALoYcGbq--dRqOO5KWPKLvIKsTNwXJoSo=.30600cab-7e20-469f-a59c-055f9515b00f@github.com>

Merge jdk8u372-b02

-------------

Commit messages:
 - Merge jdk8u372-b02
 - 7124381: DragSourceListener.dragDropEnd() never been called on completion of dnd operation
 - 8301550: [8u] Enable additional linux build testing in GitHub
 - 8177560: @headful key can be removed from the tests for JavaSound
 - 8280048: Missing comma in copyright header
 - 8233570: [TESTBUG] HTMLEditorKit test bug5043626.java is failing on macos
 - 8287741: Fix of JDK-8287107 (unused cgv1 freezer controller) was incomplete
 - 8301332: [8u] Fix writing of test files after the cgroups v2 backport
 - 8287107: CgroupSubsystemFactory.setCgroupV2Path asserts with freezer controller
 - 8275650: Problemlist java/io/File/createTempFile/SpecialTempFile.java for Windows 11
 - ... and 1 more: https://git.openjdk.org/shenandoah-jdk8u/compare/59178cdb...2efa0723

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/41/files
  Stats: 474 lines in 24 files changed: 229 ins; 108 del; 137 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/41.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/41/head:pull/41

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/41

From andrew at openjdk.org  Sat Jun 14 15:30:48 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Sat, 14 Jun 2025 15:30:48 GMT
Subject: RFR: Merge jdk8u:master
In-Reply-To: <aOiP6jrxBBALoYcGbq--dRqOO5KWPKLvIKsTNwXJoSo=.30600cab-7e20-469f-a59c-055f9515b00f@github.com>
References: <aOiP6jrxBBALoYcGbq--dRqOO5KWPKLvIKsTNwXJoSo=.30600cab-7e20-469f-a59c-055f9515b00f@github.com>
Message-ID: <x13ur7S9VgTNt--gtTt2wlEr5X6oHhZVEdnSFGYqEak=.e53d37c0-2fb0-47a3-bb97-44237e70f8b1@github.com>

On Sat, 14 Jun 2025 15:26:24 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u372-b02

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

PR Comment: https://git.openjdk.org/shenandoah-jdk8u/pull/41#issuecomment-2972832126

From andrew at openjdk.org  Mon Jun 16 00:07:23 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 00:07:23 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 11 new changesets
Message-ID: <b3b7450a-82d2-4475-8cb8-7d206c317ea2@openjdk.org>

Changeset: ab678bc8
Branch: master
Author:    Nagata, Haruhito <nagata.haruhito at jp.fujitsu.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-01-30 03:19:03 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ab678bc8e8b2c55e01151d8349eb086dfcbc3e44

8283606: Tests may fail with zh locale on MacOS

Reviewed-by: sgehwolf
Backport-of: 7d545084f45af44386cb38172fd783f889a8c4e7

! hotspot/test/runtime/classFileParserBug/TestEmptyBootstrapMethodsAttr.java
! langtools/test/tools/javadoc/6964914/TestStdDoclet.java
! langtools/test/tools/javadoc/6964914/TestUserDoclet.java
! langtools/test/tools/javah/T6893943.java

Changeset: b057084f
Branch: master
Author:    Takakuri <k.takakuri at fujitsu.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-01-30 03:19:38 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/b057084f8f44a6f81059ffa960304526c490aaad

8275650: Problemlist java/io/File/createTempFile/SpecialTempFile.java for Windows 11

Reviewed-by: phh, sgehwolf
Backport-of: 32895ac60949ccceb0a3d25c73ec5e3a00c29593

! jdk/test/ProblemList.txt

Changeset: 36f6f17a
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-01-30 15:59:28 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/36f6f17a9c2ad27a50159c2bf93b7e1fe067d3a8

8287107: CgroupSubsystemFactory.setCgroupV2Path asserts with freezer controller

Reviewed-by: phh, andrew
Backport-of: 704b9a66bba0dc8adb62be80fd62864b9c687c3f

! hotspot/test/runtime/containers/cgroup/CgroupSubsystemFactory.java
! jdk/src/linux/classes/jdk/internal/platform/CgroupSubsystemFactory.java
! jdk/test/jdk/internal/platform/cgroup/TestCgroupSubsystemFactory.java

Changeset: b4ee9f86
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-01-30 17:12:51 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/b4ee9f86a159a3b1969b31e1e77f438b8833cc40

8301332: [8u] Fix writing of test files after the cgroups v2 backport

Reviewed-by: andrew

! hotspot/test/runtime/containers/cgroup/CgroupSubsystemFactory.java
! jdk/test/jdk/internal/platform/cgroup/TestCgroupSubsystemController.java
! jdk/test/jdk/internal/platform/cgroup/TestCgroupSubsystemFactory.java

Changeset: 563f7b5d
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-01-30 17:16:50 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/563f7b5df2f5758e009a38ae373dbd1084ec81b2

8287741: Fix of JDK-8287107 (unused cgv1 freezer controller) was incomplete

Backport-of: 8d28734ede0ed3922c92451a172d1fa676e484e9

! hotspot/src/os/linux/vm/cgroupSubsystem_linux.cpp

Changeset: 604e5829
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-01-30 19:07:58 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/604e582943f1aa66cce34c2baa0f5516d2d69162

8233570: [TESTBUG] HTMLEditorKit test bug5043626.java is failing on macos

Backport-of: a5b42ec8b29249814dda28e751ee363869e98da0

! jdk/test/javax/swing/text/html/HTMLEditorKit/5043626/bug5043626.java

Changeset: 65b3bd91
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-01-30 19:14:51 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/65b3bd9162c7cd03c7348b45c24e57c8f0087a10

8280048: Missing comma in copyright header

Backport-of: 9a18190a4f8e31801d1442d97f247f074a3fd5c0

! jdk/test/sun/java2d/OpenGL/CopyAreaOOB.java

Changeset: 165ce6aa
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-01-30 19:18:56 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/165ce6aa0bab08e9fbad3ac2495295278d3cf5c6

8177560: @headful key can be removed from the tests for JavaSound

Backport-of: 0b9c38fa6ec2a64d00d244cbe161feb29963ab11

! jdk/test/javax/sound/midi/Devices/InitializationHang.java
! jdk/test/javax/sound/midi/Sequencer/SeqRecordDoesNotCopy.java
! jdk/test/javax/sound/midi/Sequencer/SeqRecordsRealTimeEvents.java
! jdk/test/javax/sound/midi/Sequencer/SeqStartRecording.java
! jdk/test/javax/sound/midi/Synthesizer/bug4685396.java
! jdk/test/javax/sound/sampled/Clip/ClipCloseLoss.java
! jdk/test/javax/sound/sampled/Clip/bug5070081.java
! jdk/test/javax/sound/sampled/DataLine/LongFramePosition.java
! jdk/test/javax/sound/sampled/DirectAudio/bug6372428.java

Changeset: 57bc2093
Branch: master
Author:    Zdenek Zambersky <zzambers at openjdk.org>
Date:      2023-02-01 16:18:45 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/57bc2093d3a0fb1c257a0b45b1076a4b32349f74

8301550: [8u] Enable additional linux build testing in GitHub

Reviewed-by: andrew

! .github/workflows/submit.yml

Changeset: 784f71f2
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-02-01 21:09:42 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/784f71f218bdb0e885a03fae35105d2fc96d56ec

7124381: DragSourceListener.dragDropEnd() never been called on completion of dnd operation

Backport-of: af802cb54114616dc74217ac91a65ecdb15d144f

- jdk/test/java/awt/dnd/Button2DragTest/Button2DragTest.html
! jdk/test/java/awt/dnd/Button2DragTest/Button2DragTest.java

Changeset: 2efa0723
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-14 02:20:28 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/2efa0723a4ac734e530557ae49bd2eb031bb80b0

Merge jdk8u372-b02

Added tag jdk8u372-b02 for changeset 784f71f218b



From andrew at openjdk.org  Mon Jun 16 00:07:32 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 00:07:32 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u372-b02 for changeset
 784f71f2
Message-ID: <1b1a6e0d-108f-467c-a9d7-2dbe3fa386a4@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-02-06 15:44:08 +0000

Added tag jdk8u372-b02 for changeset 784f71f218b
Changeset: 784f71f2
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-02-01 21:09:42 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/784f71f218bdb0e885a03fae35105d2fc96d56ec


From andrew at openjdk.org  Mon Jun 16 00:07:34 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 00:07:34 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u372-b02 for
 changeset 2efa0723
Message-ID: <c4a8bf6b-2788-49a4-95c3-79535244975a@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-14 16:24:59 +0000

Added tag shenandoah8u372-b02 for changeset 2efa0723a4a
Changeset: 2efa0723
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-14 02:20:28 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/2efa0723a4ac734e530557ae49bd2eb031bb80b0


From andrew at openjdk.org  Mon Jun 16 00:08:00 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 00:08:00 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <aOiP6jrxBBALoYcGbq--dRqOO5KWPKLvIKsTNwXJoSo=.30600cab-7e20-469f-a59c-055f9515b00f@github.com>
References: <aOiP6jrxBBALoYcGbq--dRqOO5KWPKLvIKsTNwXJoSo=.30600cab-7e20-469f-a59c-055f9515b00f@github.com>
Message-ID: <b_cEanrwJyU0Grr0sbobWAIOhyORl3sN-8gsv1pJELY=.ae1aedef-255f-4444-8948-f873fc5df184@github.com>

> Merge jdk8u372-b02

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/41/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/41/files/2efa0723..2efa0723

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=41&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=41&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/41.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/41/head:pull/41

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/41

From iris at openjdk.org  Mon Jun 16 00:08:00 2025
From: iris at openjdk.org (Iris Clark)
Date: Mon, 16 Jun 2025 00:08:00 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <aOiP6jrxBBALoYcGbq--dRqOO5KWPKLvIKsTNwXJoSo=.30600cab-7e20-469f-a59c-055f9515b00f@github.com>
References: <aOiP6jrxBBALoYcGbq--dRqOO5KWPKLvIKsTNwXJoSo=.30600cab-7e20-469f-a59c-055f9515b00f@github.com>
Message-ID: <AsMlxNVIsg_eXxV4c_4eg6AVkxTpHuoDiLnqlFwbLhc=.6f23b87e-3ca5-46d3-a69d-3c3451a51727@github.com>

On Sat, 14 Jun 2025 15:26:24 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u372-b02

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/41

From andrew at openjdk.org  Mon Jun 16 00:56:44 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 00:56:44 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <eYdnUwKKfgM-2wE1LtFoXS7CF0oRuwqjYlyuE8LP7T4=.1bf2fe48-6897-4c4e-a52d-928a8adf7614@github.com>

Merge jdk8u372-b02

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

Commit messages:
 - Merge jdk8u372-b03
 - 8156581: Cleanup of ProblemList.txt
 - 8205959: Do not restart close if errno is EINTR
 - 8298027: Remove SCCS id's from awt jtreg tests
 - 8301620: [8u] some shell tests are passed but have unexpected operator errors
 - 8287109: Distrust.java failed with CertificateExpiredException

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/42/files
  Stats: 195 lines in 10 files changed: 21 ins; 158 del; 16 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/42.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/42/head:pull/42

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/42

From eosterlund at openjdk.org  Mon Jun 16 00:59:31 2025
From: eosterlund at openjdk.org (Erik =?UTF-8?B?w5ZzdGVybHVuZA==?=)
Date: Mon, 16 Jun 2025 00:59:31 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
Message-ID: <ENAa5ub1BOWT5p9ag_BQ4j8NYmjODwJKwGoobXt4j0Y=.b597446f-e654-4083-bf6a-29c3eee0560c@github.com>

On Fri, 13 Jun 2025 19:18:19 GMT, Dean Long <dlong at openjdk.org> wrote:

>> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
>> 
>> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
>> 
>> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
>> 
>> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
>> 
>> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.
>
> Dean Long has updated the pull request incrementally with one additional commit since the last revision:
> 
>   remove is_sigill_not_entrant

Thanks for doing this! I have been wanting something like this for a while too and it looks great. I have some comments though...

src/hotspot/share/gc/z/zBarrierSetNMethod.cpp line 109:

> 107: }
> 108: 
> 109: void ZBarrierSetNMethod::arm_with(nmethod* nm, int value) {

I don't usually comment on names, but could we call this guard_with instead? We tried to stop saying "arm" about things used also for disarming and we have (hopefully) been consistent about calling that "guard" instead.

src/hotspot/share/gc/z/zBarrierSetNMethod.cpp line 114:

> 112:   // Preserve the sticky bit
> 113:   if (is_not_entrant(nm)) {
> 114:     value |= not_entrant;

Is it possible to have a race where another thread sets an nmethod to not entrant and the thread calling this making the nmethod entry barrier not entrant?

If this was called to disarm a method and then enter it, it seems a bit sneaky in that case that we pass the nmethod entry barrier even though we under the lock see that it is not entrant. Probably okay but still feels like it might be more robust if the thread setting an nmethod to not entrant is always the one that arms the nmethod entry barrier.

-------------

PR Review: https://git.openjdk.org/jdk/pull/25764#pullrequestreview-2930412450
PR Review Comment: https://git.openjdk.org/jdk/pull/25764#discussion_r2148888954
PR Review Comment: https://git.openjdk.org/jdk/pull/25764#discussion_r2148891702

From andrew at openjdk.org  Mon Jun 16 01:14:22 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 01:14:22 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u372-b03 for changeset
 11a96a79
Message-ID: <d6227dd7-27eb-46da-b599-ab12822bdd68@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-02-13 15:20:44 +0000

Added tag jdk8u372-b03 for changeset 11a96a7907a0e6692cbf056be6e7ad4dd83e3460
Changeset: 11a96a79
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-02-12 07:24:33 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/11a96a7907a0e6692cbf056be6e7ad4dd83e3460


From andrew at openjdk.org  Mon Jun 16 01:14:25 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 01:14:25 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u372-b03 for
 changeset e096f4f6
Message-ID: <7bed9480-bda4-4163-b560-c9de5eefe71f@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 01:51:11 +0000

Added tag shenandoah8u372-b03 for changeset e096f4f60bf
Changeset: e096f4f6
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 01:05:16 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/e096f4f60bf66a3a26715e19cc3d1452fbf70cde


From andrew at openjdk.org  Mon Jun 16 01:14:13 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 01:14:13 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 6 new changesets
Message-ID: <3c10d1f0-34c1-4b83-b79f-4fcec70bed60@openjdk.org>

Changeset: 8c42e201
Branch: master
Author:    Ao Qi <aoqi at openjdk.org>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-02-08 09:26:55 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/8c42e201befb10a2600a20f3f00e88f687068325

8287109: Distrust.java failed with CertificateExpiredException

Reviewed-by: sgehwolf
Backport-of: 5b7d066ca5cb68e07a704d3ce13283761c1cf3ad

! jdk/test/sun/security/ssl/X509TrustManagerImpl/Symantec/Distrust.java
- jdk/test/sun/security/ssl/X509TrustManagerImpl/Symantec/appleistca2g1-chain.pem
- jdk/test/sun/security/ssl/X509TrustManagerImpl/Symantec/geotrustglobalca-chain.pem

Changeset: fbaabf36
Branch: master
Author:    Ao Qi <aoqi at openjdk.org>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-02-08 09:27:46 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/fbaabf366e48edfd7e2749555544f6ea19f70b03

8301620: [8u] some shell tests are passed but have unexpected operator errors

Reviewed-by: sgehwolf

! hotspot/test/runtime/6929067/Test6929067.sh
! hotspot/test/runtime/jsig/Test8017498.sh
! jdk/test/jdk/tools/launcher/JliLaunchTest.sh

Changeset: b71f59bd
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-02-11 00:14:11 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/b71f59bd6065c03e7b3a2de3ce6cde42641b1a9d

8298027: Remove SCCS id's from awt jtreg tests

Reviewed-by: phh, andrew
Backport-of: ba2d28e911f4f523334f98fd0186680acafb6f0a

! jdk/test/java/awt/font/TextLayout/TestOldHangul.java
! jdk/test/java/awt/font/TextLayout/TestTibetan.java

Changeset: fd41600d
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-02-11 14:48:53 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/fd41600df61d7dc835009cde9dd9b5f9567e09b1

8205959: Do not restart close if errno is EINTR

Reviewed-by: serb
Backport-of: 45c5c6fda477c04eca1c8fdf9bdff7eab0535751

! jdk/src/solaris/native/java/net/linux_close.c

Changeset: 11a96a79
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-02-12 07:24:33 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/11a96a7907a0e6692cbf056be6e7ad4dd83e3460

8156581: Cleanup of ProblemList.txt
8156579: Two JavaBeans tests failed

Reviewed-by: sgehwolf, andrew
Backport-of: 65713ca08e5fde04a22b25314976ca364916d409

! jdk/test/ProblemList.txt

Changeset: e096f4f6
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 01:05:16 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/e096f4f60bf66a3a26715e19cc3d1452fbf70cde

Merge jdk8u372-b03

Added tag jdk8u372-b03 for changeset 11a96a7907a0e6692cbf056be6e7ad4dd83e3460



From andrew at openjdk.org  Mon Jun 16 01:15:49 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 01:15:49 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <eYdnUwKKfgM-2wE1LtFoXS7CF0oRuwqjYlyuE8LP7T4=.1bf2fe48-6897-4c4e-a52d-928a8adf7614@github.com>
References: <eYdnUwKKfgM-2wE1LtFoXS7CF0oRuwqjYlyuE8LP7T4=.1bf2fe48-6897-4c4e-a52d-928a8adf7614@github.com>
Message-ID: <qYMz001jVgUGUt1ys_te7Mu10JYpSRRB2NNbx_uIG-o=.978741ee-d894-4b78-89a0-d0254ac86551@github.com>

> Merge jdk8u372-b02
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/42/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/42/files/e096f4f6..e096f4f6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=42&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=42&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/42.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/42/head:pull/42

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/42

From iris at openjdk.org  Mon Jun 16 01:15:49 2025
From: iris at openjdk.org (Iris Clark)
Date: Mon, 16 Jun 2025 01:15:49 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <eYdnUwKKfgM-2wE1LtFoXS7CF0oRuwqjYlyuE8LP7T4=.1bf2fe48-6897-4c4e-a52d-928a8adf7614@github.com>
References: <eYdnUwKKfgM-2wE1LtFoXS7CF0oRuwqjYlyuE8LP7T4=.1bf2fe48-6897-4c4e-a52d-928a8adf7614@github.com>
Message-ID: <Gh2YpYBVqV7B3fcYpfpfWQOW8sIcv2T0MYGokYusNi4=.5437fbff-fe52-4786-aa75-fb8a45183c01@github.com>

On Mon, 16 Jun 2025 00:52:27 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u372-b02
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/42

From andrew at openjdk.org  Mon Jun 16 01:41:51 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 01:41:51 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <J2xGwq19GW0biMLCCr0ojhT2LCOga_ActtglzhA7tj4=.81509312-aa37-43db-a3ed-9e413b89c952@github.com>

Merge jdk8u372-b04

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

Commit messages:
 - Merge jdk8u372-b04
 - 8275535: Retrying a failed authentication on multiple LDAP servers can lead to users blocked
 - 8301246: NPE in FcFontManager.getDefaultPlatformFont() on Linux without installed fontconfig
 - 8301143: [TESTBUG] jfr/event/sampling/TestNative was backported to JDK8u without proper native wrapper
 - 8270317: Large Allocation in CipherSuite
 - 8301760: Fix possible leak in SpNegoContext dispose
 - 8287463: JFR: Disable TestDevNull.java on Windows
 - 8282947: JFR: Dump on shutdown live-locks in some conditions
 - 8142540: [TEST_BUG] Test sun/awt/dnd/8024061/bug8024061.java fails on ubuntu
 - 8137101: [TEST_BUG] javax/swing/plaf/basic/BasicHTML/4251579/bug4251579.java failure due to timing
 - ... and 3 more: https://git.openjdk.org/shenandoah-jdk8u/compare/e096f4f6...602e2d7a

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/43/files
  Stats: 739 lines in 16 files changed: 366 ins; 103 del; 270 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/43.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/43/head:pull/43

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/43

From andrew at openjdk.org  Mon Jun 16 01:46:35 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 01:46:35 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 13 new changesets
Message-ID: <06633710-aeae-4b3d-9c8f-c003d60ca61c@openjdk.org>

Changeset: 89953562
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-02-13 02:41:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/89953562e5bca442b30e8fbbe228697bcc7ad961

6734341: REGTEST fails: SelectionAutoscrollTest.html

Reviewed-by: andrew
Backport-of: 3dc3d0c3e52d91bb3a205e6f8c6b1e79d9aa1928

- jdk/test/java/awt/TextArea/UsingWithMouse/SelectionAutoscrollTest.html
! jdk/test/java/awt/TextArea/UsingWithMouse/SelectionAutoscrollTest.java

Changeset: 3af19d3c
Branch: master
Author:    Roman Marchenko <rmarchenko at openjdk.org>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2023-02-13 06:31:12 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3af19d3c08d952be63c2c80f5f18aaf5e278907f

8282511: Use fixed certificate validation date in SSLExampleCert template
8299445: EndingDotHostname.java fails because of compilation errors

Reviewed-by: yan, andrew
Backport-of: 268fa693188b685de6289927ee5a1e99473a50f6

! jdk/test/javax/net/ssl/ServerName/EndingDotHostname.java
! jdk/test/javax/net/ssl/templates/SSLExampleCert.java

Changeset: 29a1b794
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-02-13 08:13:56 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/29a1b794b80c1563fd1674b26f2f278ca382137a

7124238: [macosx] Font in BasicHTML document is bigger than it should be

Reviewed-by: andrew
Backport-of: 8ccf075f78b5645dd186d11637bd11d7e6938b86

+ jdk/test/javax/swing/plaf/basic/BasicHTML/4960629/bug4960629.java

Changeset: cbde7449
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-02-13 08:30:26 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/cbde7449bd8f027f258b08fbfe786222fa3ed7fe

8137101: [TEST_BUG] javax/swing/plaf/basic/BasicHTML/4251579/bug4251579.java failure due to timing

Reviewed-by: andrew
Backport-of: 4940e2e8d85f2eef88c6132923b165253c13aa73

! jdk/test/javax/swing/plaf/basic/BasicHTML/4251579/bug4251579.java

Changeset: c183dc59
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-02-13 08:36:53 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c183dc59f9027f7fb5253e68fa4ac8df57a9d267

8142540: [TEST_BUG] Test sun/awt/dnd/8024061/bug8024061.java fails on ubuntu

Reviewed-by: andrew
Backport-of: 84dd5699d5571e586b2763da34d2a76851695854

! jdk/test/sun/awt/dnd/8024061/bug8024061.java

Changeset: ec53e001
Branch: master
Author:    Ji?? Van?k <jvanek at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-02-15 15:38:45 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ec53e00169fabf8f53ca4a5bdd4c92f7b1f10a00

8282947: JFR: Dump on shutdown live-locks in some conditions

Reviewed-by: phh
Backport-of: 63eb0b7e8606dd9cd145e92eeeb744ff5b7be569

! jdk/src/share/classes/jdk/jfr/internal/ChunksChannel.java
! jdk/src/share/classes/jdk/jfr/internal/PlatformRecording.java
+ jdk/test/jdk/jfr/api/recording/dump/TestDumpDevNull.java

Changeset: 71108a5c
Branch: master
Author:    Ji?? Van?k <jvanek at openjdk.org>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-02-15 17:14:01 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/71108a5c86ab709bb4f3fe1f7ad4f72a554b3830

8287463: JFR: Disable TestDevNull.java on Windows

Reviewed-by: sgehwolf
Backport-of: 0df4748216ab71937cfcfb86a2d66f3568bced1e

! jdk/test/jdk/jfr/api/recording/dump/TestDumpDevNull.java

Changeset: 713c020d
Branch: master
Author:    Yuri Nesterenko <yan at openjdk.org>
Date:      2023-02-16 06:38:22 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/713c020dc6d3e28a3d732aee5914f68bd5f67a11

8301760: Fix possible leak in SpNegoContext dispose

Reviewed-by: phh
Backport-of: 3f3356bcbd2b2fbc545263dc70a48ee931a4e56b

! jdk/src/share/classes/sun/security/jgss/spnego/SpNegoContext.java

Changeset: aed31d98
Branch: master
Author:    Paul Hohensee <phh at openjdk.org>
Date:      2023-02-16 13:34:11 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/aed31d98c375742bb986e06e19b056cb049a2a38

8270317: Large Allocation in CipherSuite

Reviewed-by: simonis, mbalao
Backport-of: e627caec84c169c99c04e0d355c29b806a0266ed

! jdk/src/share/classes/sun/security/ssl/CipherSuite.java

Changeset: b3e23801
Branch: master
Author:    Ji?? Van?k <jvanek at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-02-16 15:01:56 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/b3e2380183b33a3b1131ad7a5f118e876914f810

8301143: [TESTBUG] jfr/event/sampling/TestNative was backported to JDK8u without proper native wrapper

Reviewed-by: sgehwolf, phh

! jdk/test/jdk/jfr/event/sampling/TestNative.java
+ jdk/test/jdk/jfr/event/sampling/TestNative.sh

Changeset: ca0a6be2
Branch: master
Author:    Alexander Scherbatiy <alexsch at openjdk.org>
Date:      2023-02-17 08:58:26 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ca0a6be2d76ce755ccfcce0d45a8943b11868067

8301246: NPE in FcFontManager.getDefaultPlatformFont() on Linux without installed fontconfig

Reviewed-by: serb

! jdk/src/solaris/classes/sun/awt/FcFontManager.java

Changeset: b51619d2
Branch: master
Author:    Alexey Bakhtin <abakhtin at openjdk.org>
Date:      2023-02-17 11:26:58 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/b51619d24e0643aa0afdba87ac20b371dbb594e8

8275535: Retrying a failed authentication on multiple LDAP servers can lead to users blocked

Reviewed-by: phh
Backport-of: 3be394e1606dd17c2c14ce806c796f5eb2b1ad6e

! jdk/src/share/classes/com/sun/jndi/ldap/LdapCtxFactory.java

Changeset: 602e2d7a
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 02:12:21 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/602e2d7acfcd4f976dcfb50a4a975d25a6dc198f

Merge jdk8u372-b04

Added tag jdk8u372-b04 for changeset b51619d24e0



From andrew at openjdk.org  Mon Jun 16 01:46:45 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 01:46:45 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u382-b00 for changeset
 b51619d2
Message-ID: <7cd9bf8d-da47-46be-b5ae-4485bf4620c1@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-03-01 16:07:57 +0000

Added tag jdk8u382-b00 for changeset b51619d24e0
Changeset: b51619d2
Author:    Alexey Bakhtin <abakhtin at openjdk.org>
Date:      2023-02-17 11:26:58 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/b51619d24e0643aa0afdba87ac20b371dbb594e8


From andrew at openjdk.org  Mon Jun 16 01:46:48 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 01:46:48 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u382-b00 for
 changeset 602e2d7a
Message-ID: <f27effb6-09bd-4503-b4b3-1029e9fdbcd1@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 02:36:22 +0000

Added tag shenandoah8u382-b00 for changeset 602e2d7acfc
Changeset: 602e2d7a
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 02:12:21 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/602e2d7acfcd4f976dcfb50a4a975d25a6dc198f


From andrew at openjdk.org  Mon Jun 16 01:46:53 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 01:46:53 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u372-b04 for changeset
 b51619d2
Message-ID: <c87b3923-7f2b-4f85-848b-8bf8d772020f@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-02-20 22:50:42 +0000

Added tag jdk8u372-b04 for changeset b51619d24e0
Changeset: b51619d2
Author:    Alexey Bakhtin <abakhtin at openjdk.org>
Date:      2023-02-17 11:26:58 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/b51619d24e0643aa0afdba87ac20b371dbb594e8


From andrew at openjdk.org  Mon Jun 16 01:47:00 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 01:47:00 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u372-b04 for
 changeset 602e2d7a
Message-ID: <94b45b6b-43c1-4e10-b550-638bce73bc0d@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 02:36:08 +0000

Added tag shenandoah8u372-b04 for changeset 602e2d7acfc
Changeset: 602e2d7a
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 02:12:21 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/602e2d7acfcd4f976dcfb50a4a975d25a6dc198f


From andrew at openjdk.org  Mon Jun 16 01:47:46 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 01:47:46 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <J2xGwq19GW0biMLCCr0ojhT2LCOga_ActtglzhA7tj4=.81509312-aa37-43db-a3ed-9e413b89c952@github.com>
References: <J2xGwq19GW0biMLCCr0ojhT2LCOga_ActtglzhA7tj4=.81509312-aa37-43db-a3ed-9e413b89c952@github.com>
Message-ID: <c-svla9Xx1eXMzyvnlAYYG9nNr5A7cOjMNLj6NWsvaM=.38c249fa-562c-448e-a0d6-7c3b88f99d2f@github.com>

> Merge jdk8u372-b04
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/43/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/43/files/602e2d7a..602e2d7a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=43&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=43&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/43.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/43/head:pull/43

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/43

From iris at openjdk.org  Mon Jun 16 01:47:46 2025
From: iris at openjdk.org (Iris Clark)
Date: Mon, 16 Jun 2025 01:47:46 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <J2xGwq19GW0biMLCCr0ojhT2LCOga_ActtglzhA7tj4=.81509312-aa37-43db-a3ed-9e413b89c952@github.com>
References: <J2xGwq19GW0biMLCCr0ojhT2LCOga_ActtglzhA7tj4=.81509312-aa37-43db-a3ed-9e413b89c952@github.com>
Message-ID: <AVPC2ADx4UdNXi3Q1jTVVlo8A4UBMnyLEkNHhJjzQaw=.6663b6a1-b2c7-49cd-9403-bbd1de588bbc@github.com>

On Mon, 16 Jun 2025 01:38:21 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u372-b04
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/43

From andrew at openjdk.org  Mon Jun 16 02:08:45 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 02:08:45 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <6FOl9JtoCrsgmkbojD8OOcLkVan9E3XasRUIvScPdEQ=.381c90cf-8850-448a-a667-647b04d08247@github.com>

Merge jdk8u372-b05

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

Commit messages:
 - Merge jdk8u372-b05
 - 8245654: Add Certigna Root CA
 - 8248899: security/infra/java/security/cert/CertPathValidator/certification/QuoVadisCA.java fails, Certificate has been revoked
 - 8243543: jtreg test security/infra/java/security/cert/CertPathValidator/certification/BuypassCA.java fails
 - 8303408: [AIX] Broken jdk8u build after JDK-8266391

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/44/files
  Stats: 887 lines in 6 files changed: 342 ins; 37 del; 508 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/44.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/44/head:pull/44

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/44

From andrew at openjdk.org  Mon Jun 16 02:12:44 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 02:12:44 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 5 new changesets
Message-ID: <458c1ea2-8bc0-47a5-9169-46427193562f@openjdk.org>

Changeset: 4a837299
Branch: master
Author:    Deepa Kumari <dpakri181 at gmail.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-03-03 10:34:21 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/4a837299c68071be563e376efe6f12852bc130e7

8303408: [AIX] Broken jdk8u build after JDK-8266391

Reviewed-by: phh, sgehwolf

= jdk/src/aix/classes/jdk/internal/platform/SystemMetrics.java

Changeset: 7c0d5b49
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-03-03 17:29:32 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/7c0d5b49c05b5990776584de9b3d9f53b8b55e94

8243543: jtreg test security/infra/java/security/cert/CertPathValidator/certification/BuypassCA.java fails

Reviewed-by: phh, andrew
Backport-of: 45abbeed2f4f2899a3c1595b0cd8e573990a16fa

! jdk/test/security/infra/java/security/cert/CertPathValidator/certification/BuypassCA.java

Changeset: 3b80e877
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-03-03 17:31:14 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3b80e87798b41453738354aa4be030d420a0562a

8248899: security/infra/java/security/cert/CertPathValidator/certification/QuoVadisCA.java fails, Certificate has been revoked

Reviewed-by: phh, andrew
Backport-of: d6bb846159be7e46fba0c3ca2915617f945e0b42

! jdk/test/security/infra/java/security/cert/CertPathValidator/certification/QuoVadisCA.java

Changeset: 5806429f
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-03-03 17:32:53 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/5806429f7ac582c400896a7ac61e147e93ddeac8

8245654: Add Certigna Root CA

Reviewed-by: phh, andrew
Backport-of: c8ee076241cc7d83f423683d97ec37f9e0d6ebaa

+ jdk/make/data/cacerts/certignaca
+ jdk/test/security/infra/java/security/cert/CertPathValidator/certification/CertignaCA.java
! jdk/test/sun/security/lib/cacerts/VerifyCACerts.java

Changeset: c3bf9fe3
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 02:44:09 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c3bf9fe330d12b9b31dc9ebf2040bf40df6de1e6

Merge jdk8u372-b05

Added tag jdk8u372-b05 for changeset 5806429f7ac



From andrew at openjdk.org  Mon Jun 16 02:12:53 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 02:12:53 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u372-b05 for changeset
 5806429f
Message-ID: <4c376bd0-5818-4ddc-89d4-e09170f108a0@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-03-07 01:43:33 +0000

Added tag jdk8u372-b05 for changeset 5806429f7ac
Changeset: 5806429f
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-03-03 17:32:53 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/5806429f7ac582c400896a7ac61e147e93ddeac8


From andrew at openjdk.org  Mon Jun 16 02:12:57 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 02:12:57 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u372-b05 for
 changeset c3bf9fe3
Message-ID: <33de8828-54ab-4d4a-80d0-533de3a1de9d@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 03:03:18 +0000

Added tag shenandoah8u372-b05 for changeset c3bf9fe330d
Changeset: c3bf9fe3
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 02:44:09 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c3bf9fe330d12b9b31dc9ebf2040bf40df6de1e6


From andrew at openjdk.org  Mon Jun 16 02:13:55 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 02:13:55 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <6FOl9JtoCrsgmkbojD8OOcLkVan9E3XasRUIvScPdEQ=.381c90cf-8850-448a-a667-647b04d08247@github.com>
References: <6FOl9JtoCrsgmkbojD8OOcLkVan9E3XasRUIvScPdEQ=.381c90cf-8850-448a-a667-647b04d08247@github.com>
Message-ID: <dJgDd8KwU4ow9yT93eZDANIInGHT1F9MHTaU0GMrbo0=.c104dc82-141d-404d-b608-7989ebf152ad@github.com>

> Merge jdk8u372-b05
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/44/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/44/files/c3bf9fe3..c3bf9fe3

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=44&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=44&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/44.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/44/head:pull/44

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/44

From iris at openjdk.org  Mon Jun 16 02:13:55 2025
From: iris at openjdk.org (Iris Clark)
Date: Mon, 16 Jun 2025 02:13:55 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <6FOl9JtoCrsgmkbojD8OOcLkVan9E3XasRUIvScPdEQ=.381c90cf-8850-448a-a667-647b04d08247@github.com>
References: <6FOl9JtoCrsgmkbojD8OOcLkVan9E3XasRUIvScPdEQ=.381c90cf-8850-448a-a667-647b04d08247@github.com>
Message-ID: <yXZCj_YW-cXAPVVDnJNwZMrAZpermkVOmerh5PaoqEw=.27d71ffe-eb09-4840-9625-0d384c2196b9@github.com>

On Mon, 16 Jun 2025 02:04:25 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u372-b05
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/44

From serge.korotkov at gmail.com  Mon Jun 16 03:56:11 2025
From: serge.korotkov at gmail.com (Sergey Korotkov)
Date: Mon, 16 Jun 2025 10:56:11 +0700
Subject: C2 Jit compiler fails accessing off-heap memory via Unsafe with
 ShenandoahGC
In-Reply-To: <87plfm6t0d.fsf@redhat.com>
References: <136180f2-df08-444b-8d80-63a10296a85f@gmail.com>
 <87plfm6t0d.fsf@redhat.com>
Message-ID: <49fb15af-4525-4df9-b895-e3ae82b30560@gmail.com>

Hello Roland,

Thanks much for an amazingly fast fix!

Are there any chances to get it backported to jdk 17 and 21?

Our product (Apache Ignite) heavily relies on off-heap memory operations 
via Unsafe.  I already applied the work around in our code but still not 
100% sure that problem wouldn't hit in some other place.

I can drive the backport if you would help with steps which needed the 
JBS user account.

WBR,
--
   Sergey



On 6/2/25 22:52, Roland Westrelin wrote:
> 
> Hi Sergey,
> 
> Thanks for the bug report. I created
> https://bugs.openjdk.org/browse/JDK-8358334 to track that one. I'm
> having a look.
> 
> Roland.
> 


From stefank at openjdk.org  Mon Jun 16 07:54:30 2025
From: stefank at openjdk.org (Stefan Karlsson)
Date: Mon, 16 Jun 2025 07:54:30 GMT
Subject: RFR: 8359394: Shenandoah: GC cause cleanup
In-Reply-To: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>
References: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>
Message-ID: <JsnkRZTMVaOtyBbLr1Nb9dlXmaChJVpKxBvatGtb7mg=.1543b4bd-d6bf-458b-bea3-f8dda0031a1e@github.com>

On Thu, 12 Jun 2025 23:42:41 GMT, William Kemper <wkemper at openjdk.org> wrote:

> We can remove `GCCause::_no_cause_specified` and need to add a case for `_shenandoah_humongous_allocation_failure` in `GCCause::to_string`. We are also missing `_shenandoah_humongous_allocation_failure` in the `SA` analog.

I'm OK with the shared GC changes if you change the title of JBS issue or split it out the shared parts into a separate issue.

-------------

PR Review: https://git.openjdk.org/jdk/pull/25789#pullrequestreview-2930994011

From amitkumar at openjdk.org  Mon Jun 16 08:29:34 2025
From: amitkumar at openjdk.org (Amit Kumar)
Date: Mon, 16 Jun 2025 08:29:34 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
Message-ID: <TIjZO_0VNfCRPgMPKQxrsKoYQ1sUMqC85VMA9dZAvWk=.211ee6de-1b89-4aeb-93d8-cb41e13cc011@github.com>

On Fri, 13 Jun 2025 19:18:19 GMT, Dean Long <dlong at openjdk.org> wrote:

>> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
>> 
>> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
>> 
>> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
>> 
>> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
>> 
>> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.
>
> Dean Long has updated the pull request incrementally with one additional commit since the last revision:
> 
>   remove is_sigill_not_entrant

Just FYI, s390 build is broken with this change: 


#
# A fatal error has been detected by the Java Runtime Environment:
#
#  Internal Error (/home/amit/jdk/src/hotspot/share/gc/shared/barrierSetNMethod.cpp:196), pid=1779086, tid=1779117
#  assert(!nm->is_osr_method() || may_enter) failed: OSR nmethods should always be entrant after migration
#
# JRE version: OpenJDK Runtime Environment (26.0) (fastdebug build 26-internal-adhoc.amit.jdk)
# Java VM: OpenJDK 64-Bit Server VM (fastdebug 26-internal-adhoc.amit.jdk, mixed mode, tiered, compressed oops, compressed class ptrs, g1 gc, linux-s390x)
# Problematic frame:
# V  [libjvm.so+0x40b196]  BarrierSetNMethod::nmethod_stub_entry_barrier(unsigned char**)+0x15e
#
# Core dump will be written. Default location: Core dumps may be processed with "/lib/systemd/systemd-coredump %P %u %g %s %t 9223372036854775808 %h %d" (or dumping to /home/amit/jdk/make/core.1779086)
#
# If you would like to submit a bug report, please visit:
#   https://bugreport.java.com/bugreport/crash.jsp
#


stack trace: 

Stack: [0x000003ff9e580000,0x000003ff9e680000],  sp=0x000003ff9e67b068,  free space=1004k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V  [libjvm.so+0x40b196]  BarrierSetNMethod::nmethod_stub_entry_barrier(unsigned char**)+0x15e  (barrierSetNMethod.cpp:196)
v  ~StubRoutines::method_entry_barrier 0x000003ff9050cd18
J 282% c2 sun.nio.fs.UnixPath.initOffsets()V java.base (189 bytes) @ 0x000003ff90c4f0c8 [0x000003ff90c4f080+0x0000000000000048]
j  sun.nio.fs.UnixPath.getFileName()Lsun/nio/fs/UnixPath;+1 java.base
j  sun.nio.fs.UnixFileSystemProvider.isHidden(Ljava/nio/file/Path;)Z+6 java.base
j  java.nio.file.Files.isHidden(Ljava/nio/file/Path;)Z+5 java.base
j  jdk.internal.module.ModulePath.isHidden(Ljava/nio/file/Path;)Z+1 java.base
j  jdk.internal.module.ModulePath.lambda$explodedPackages$0(Ljava/nio/file/Path;Ljava/nio/file/attribute/BasicFileAttributes;)Z+11 java.base
j  jdk.internal.module.ModulePath$$Lambda+0x00000000a105cbe0.test(Ljava/lang/Object;Ljava/lang/Object;)Z+12 java.base
j  java.nio.file.Files.lambda$find$0(Ljava/util/function/BiPredicate;Ljava/nio/file/FileTreeWalker$Event;)Z+9 java.base
j  java.nio.file.Files$$Lambda+0x00000000a10646c0.test(Ljava/lang/Object;)Z+8 java.base
....

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25764#issuecomment-2975564797

From andrew at openjdk.org  Mon Jun 16 13:30:52 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 13:30:52 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <C8viiJQuTCcRHHAvcsOBc4-7crpLMuPWexe4k4gFiTQ=.20de8736-371b-4800-b2f2-930523469e89@github.com>

Merge jdk8u372-b06

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

Commit messages:
 - Merge jdk8u372-b06
 - 8304053: Revert os specific stubs for SystemMetrics
 - 8303828: [Solaris] Broken jdk8u build after JDK-8266391

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/45/files
  Stats: 67 lines in 4 files changed: 4 ins; 62 del; 1 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/45.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/45/head:pull/45

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/45

From sroy at openjdk.org  Mon Jun 16 13:53:07 2025
From: sroy at openjdk.org (Suchismith Roy)
Date: Mon, 16 Jun 2025 13:53:07 GMT
Subject: RFR: JDK-8349077 : Rename GenerationCounters::update_all
Message-ID: <nBuldyLzGPSPj7mdsnrrtyrx4Rol52jQW-67Sn0zQLc=.227796c6-6e1b-4540-9ac4-9bdb2a80c7c7@github.com>

JBS Issue : [JDK-8349077](https://bugs.openjdk.org/browse/JDK-8349077)

we found the method names `update_all` of the class `GenerationCounters` and its subclasses are not so good. It is better to rename it to something like `update_capacity` (such as `ZGenerationCounters::update_capacity`).

-------------

Commit messages:
 -  copyright
 - update capacity

Changes: https://git.openjdk.org/jdk/pull/25831/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25831&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8349077
  Stats: 46 lines in 16 files changed: 0 ins; 0 del; 46 mod
  Patch: https://git.openjdk.org/jdk/pull/25831.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25831/head:pull/25831

PR: https://git.openjdk.org/jdk/pull/25831

From mdoerr at openjdk.org  Mon Jun 16 13:59:29 2025
From: mdoerr at openjdk.org (Martin Doerr)
Date: Mon, 16 Jun 2025 13:59:29 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <TIjZO_0VNfCRPgMPKQxrsKoYQ1sUMqC85VMA9dZAvWk=.211ee6de-1b89-4aeb-93d8-cb41e13cc011@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
 <TIjZO_0VNfCRPgMPKQxrsKoYQ1sUMqC85VMA9dZAvWk=.211ee6de-1b89-4aeb-93d8-cb41e13cc011@github.com>
Message-ID: <eKflnYAqlB11rSLWSuw6ZAeIzNQjESuZ_TBG1Le2dS4=.78600187-5347-45b7-855c-03ac92941117@github.com>

On Mon, 16 Jun 2025 08:26:38 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

>> Dean Long has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   remove is_sigill_not_entrant
>
> Just FYI, s390 build is broken with this change: 
> 
> 
> #
> # A fatal error has been detected by the Java Runtime Environment:
> #
> #  Internal Error (/home/amit/jdk/src/hotspot/share/gc/shared/barrierSetNMethod.cpp:196), pid=1779086, tid=1779117
> #  assert(!nm->is_osr_method() || may_enter) failed: OSR nmethods should always be entrant after migration
> #
> # JRE version: OpenJDK Runtime Environment (26.0) (fastdebug build 26-internal-adhoc.amit.jdk)
> # Java VM: OpenJDK 64-Bit Server VM (fastdebug 26-internal-adhoc.amit.jdk, mixed mode, tiered, compressed oops, compressed class ptrs, g1 gc, linux-s390x)
> # Problematic frame:
> # V  [libjvm.so+0x40b196]  BarrierSetNMethod::nmethod_stub_entry_barrier(unsigned char**)+0x15e
> #
> # Core dump will be written. Default location: Core dumps may be processed with "/lib/systemd/systemd-coredump %P %u %g %s %t 9223372036854775808 %h %d" (or dumping to /home/amit/jdk/make/core.1779086)
> #
> # If you would like to submit a bug report, please visit:
> #   https://bugreport.java.com/bugreport/crash.jsp
> #
> 
> 
> stack trace: 
> 
> Stack: [0x000003ff9e580000,0x000003ff9e680000],  sp=0x000003ff9e67b068,  free space=1004k
> Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
> V  [libjvm.so+0x40b196]  BarrierSetNMethod::nmethod_stub_entry_barrier(unsigned char**)+0x15e  (barrierSetNMethod.cpp:196)
> v  ~StubRoutines::method_entry_barrier 0x000003ff9050cd18
> J 282% c2 sun.nio.fs.UnixPath.initOffsets()V java.base (189 bytes) @ 0x000003ff90c4f0c8 [0x000003ff90c4f080+0x0000000000000048]
> j  sun.nio.fs.UnixPath.getFileName()Lsun/nio/fs/UnixPath;+1 java.base
> j  sun.nio.fs.UnixFileSystemProvider.isHidden(Ljava/nio/file/Path;)Z+6 java.base
> j  java.nio.file.Files.isHidden(Ljava/nio/file/Path;)Z+5 java.base
> j  jdk.internal.module.ModulePath.isHidden(Ljava/nio/file/Path;)Z+1 java.base
> j  jdk.internal.module.ModulePath.lambda$explodedPackages$0(Ljava/nio/file/Path;Ljava/nio/file/attribute/BasicFileAttributes;)Z+11 java.base
> j  jdk.internal.module.ModulePath$$Lambda+0x00000000a105cbe0.test(Ljava/lang/Object;Ljava/lang/Object;)Z+12 java.base
> j  java.nio.file.Files.lambda$find$0(Ljava/util/function/BiPredicate;Ljava/nio/file/FileTreeWalker$Event;)Z+9 java.base
> j  java.nio.file.Files$$Lambda+0x00000000a10646c0.test(Ljava/lang/Object;)Z+8 java.base
> ....

@offamitkumar: The problem is probably the initialization to -1: [`z_cfi(Z_R0_scratch, /* to be patched */ -1);`.](https://github.com/openjdk/jdk/blob/9d060574e5dbd13e634f00d749d0108ceff1fae8/src/hotspot/cpu/s390/gc/shared/barrierSetAssembler_s390.cpp#L183)
Should be 0.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25764#issuecomment-2976308103

From mdoerr at openjdk.org  Mon Jun 16 13:59:30 2025
From: mdoerr at openjdk.org (Martin Doerr)
Date: Mon, 16 Jun 2025 13:59:30 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
Message-ID: <SHo1MHmCagVN25GGMf9dy8DXeRuxBxtN924XLZ-hUBw=.b40304b3-67e1-4cd6-b5d8-45f15aee0c94@github.com>

On Fri, 13 Jun 2025 19:18:19 GMT, Dean Long <dlong at openjdk.org> wrote:

>> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
>> 
>> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
>> 
>> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
>> 
>> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
>> 
>> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.
>
> Dean Long has updated the pull request incrementally with one additional commit since the last revision:
> 
>   remove is_sigill_not_entrant

Seems like arm32 has the same issue: https://github.com/openjdk/jdk/blob/9d060574e5dbd13e634f00d749d0108ceff1fae8/src/hotspot/cpu/arm/gc/shared/barrierSetAssembler_arm.cpp#L199
The init value shouldn't have the sticky bit set.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25764#issuecomment-2976766766

From sroy at openjdk.org  Mon Jun 16 14:04:34 2025
From: sroy at openjdk.org (Suchismith Roy)
Date: Mon, 16 Jun 2025 14:04:34 GMT
Subject: Withdrawn: JDK-8349077 : Rename GenerationCounters::update_all
In-Reply-To: <nBuldyLzGPSPj7mdsnrrtyrx4Rol52jQW-67Sn0zQLc=.227796c6-6e1b-4540-9ac4-9bdb2a80c7c7@github.com>
References: <nBuldyLzGPSPj7mdsnrrtyrx4Rol52jQW-67Sn0zQLc=.227796c6-6e1b-4540-9ac4-9bdb2a80c7c7@github.com>
Message-ID: <WuP1dIKU9hvpeGLdOfWDHRHIZHkBqUQCyeAY62gNRR8=.dfe66b31-bfca-4531-aa2c-9375e3795188@github.com>

On Mon, 16 Jun 2025 13:31:00 GMT, Suchismith Roy <sroy at openjdk.org> wrote:

> JBS Issue : [JDK-8349077](https://bugs.openjdk.org/browse/JDK-8349077)
> 
> we found the method names `update_all` of the class `GenerationCounters` and its subclasses are not so good. It is better to rename it to something like `update_capacity` (such as `ZGenerationCounters::update_capacity`).

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/jdk/pull/25831

From amitkumar at openjdk.org  Mon Jun 16 15:07:29 2025
From: amitkumar at openjdk.org (Amit Kumar)
Date: Mon, 16 Jun 2025 15:07:29 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <TIjZO_0VNfCRPgMPKQxrsKoYQ1sUMqC85VMA9dZAvWk=.211ee6de-1b89-4aeb-93d8-cb41e13cc011@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
 <TIjZO_0VNfCRPgMPKQxrsKoYQ1sUMqC85VMA9dZAvWk=.211ee6de-1b89-4aeb-93d8-cb41e13cc011@github.com>
Message-ID: <a6qUUAt1FkBiLSeMP3t79yKOPDge6Zv5Z_pLF0sD_IU=.e120976d-ac33-44ca-92be-289f1bce8fed@github.com>

On Mon, 16 Jun 2025 08:26:38 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

>> Dean Long has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   remove is_sigill_not_entrant
>
> Just FYI, s390 build is broken with this change: 
> 
> 
> #
> # A fatal error has been detected by the Java Runtime Environment:
> #
> #  Internal Error (/home/amit/jdk/src/hotspot/share/gc/shared/barrierSetNMethod.cpp:196), pid=1779086, tid=1779117
> #  assert(!nm->is_osr_method() || may_enter) failed: OSR nmethods should always be entrant after migration
> #
> # JRE version: OpenJDK Runtime Environment (26.0) (fastdebug build 26-internal-adhoc.amit.jdk)
> # Java VM: OpenJDK 64-Bit Server VM (fastdebug 26-internal-adhoc.amit.jdk, mixed mode, tiered, compressed oops, compressed class ptrs, g1 gc, linux-s390x)
> # Problematic frame:
> # V  [libjvm.so+0x40b196]  BarrierSetNMethod::nmethod_stub_entry_barrier(unsigned char**)+0x15e
> #
> # Core dump will be written. Default location: Core dumps may be processed with "/lib/systemd/systemd-coredump %P %u %g %s %t 9223372036854775808 %h %d" (or dumping to /home/amit/jdk/make/core.1779086)
> #
> # If you would like to submit a bug report, please visit:
> #   https://bugreport.java.com/bugreport/crash.jsp
> #
> 
> 
> stack trace: 
> 
> Stack: [0x000003ff9e580000,0x000003ff9e680000],  sp=0x000003ff9e67b068,  free space=1004k
> Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
> V  [libjvm.so+0x40b196]  BarrierSetNMethod::nmethod_stub_entry_barrier(unsigned char**)+0x15e  (barrierSetNMethod.cpp:196)
> v  ~StubRoutines::method_entry_barrier 0x000003ff9050cd18
> J 282% c2 sun.nio.fs.UnixPath.initOffsets()V java.base (189 bytes) @ 0x000003ff90c4f0c8 [0x000003ff90c4f080+0x0000000000000048]
> j  sun.nio.fs.UnixPath.getFileName()Lsun/nio/fs/UnixPath;+1 java.base
> j  sun.nio.fs.UnixFileSystemProvider.isHidden(Ljava/nio/file/Path;)Z+6 java.base
> j  java.nio.file.Files.isHidden(Ljava/nio/file/Path;)Z+5 java.base
> j  jdk.internal.module.ModulePath.isHidden(Ljava/nio/file/Path;)Z+1 java.base
> j  jdk.internal.module.ModulePath.lambda$explodedPackages$0(Ljava/nio/file/Path;Ljava/nio/file/attribute/BasicFileAttributes;)Z+11 java.base
> j  jdk.internal.module.ModulePath$$Lambda+0x00000000a105cbe0.test(Ljava/lang/Object;Ljava/lang/Object;)Z+12 java.base
> j  java.nio.file.Files.lambda$find$0(Ljava/util/function/BiPredicate;Ljava/nio/file/FileTreeWalker$Event;)Z+9 java.base
> j  java.nio.file.Files$$Lambda+0x00000000a10646c0.test(Ljava/lang/Object;)Z+8 java.base
> ....

> @offamitkumar: The problem is probably the initialization to -1: [`z_cfi(Z_R0_scratch, /* to be patched */ -1);`.](https://github.com/openjdk/jdk/blob/9d060574e5dbd13e634f00d749d0108ceff1fae8/src/hotspot/cpu/s390/gc/shared/barrierSetAssembler_s390.cpp#L183) Should be 0.

Thank you Martin for the suggestion. 

@dean-long would you please add this diff, fixing s390x build. I ran tier1 test with fastdebug, test are clean; 


diff --git a/src/hotspot/cpu/s390/gc/shared/barrierSetAssembler_s390.cpp b/src/hotspot/cpu/s390/gc/shared/barrierSetAssembler_s390.cpp
index e78906708af..2d663061aec 100644
--- a/src/hotspot/cpu/s390/gc/shared/barrierSetAssembler_s390.cpp
+++ b/src/hotspot/cpu/s390/gc/shared/barrierSetAssembler_s390.cpp
@@ -180,7 +180,7 @@ void BarrierSetAssembler::nmethod_entry_barrier(MacroAssembler* masm) {
     __ z_lg(Z_R0_scratch, in_bytes(bs_nm->thread_disarmed_guard_value_offset()), Z_thread); // 6 bytes
 
     // Compare to current patched value:
-    __ z_cfi(Z_R0_scratch, /* to be patched */ -1); // 6 bytes (2 + 4 byte imm val)
+    __ z_cfi(Z_R0_scratch, /* to be patched */ 0); // 6 bytes (2 + 4 byte imm val)
 
     // Conditional Jump
     __ z_larl(Z_R14, (Assembler::instr_len((unsigned long)LARL_ZOPC) + Assembler::instr_len((unsigned long)BCR_ZOPC)) / 2); // 6 bytes
diff --git a/src/hotspot/cpu/s390/stubGenerator_s390.cpp b/src/hotspot/cpu/s390/stubGenerator_s390.cpp
index d3f6540a3ea..bb1d9ce6037 100644
--- a/src/hotspot/cpu/s390/stubGenerator_s390.cpp
+++ b/src/hotspot/cpu/s390/stubGenerator_s390.cpp
@@ -3197,7 +3197,7 @@ class StubGenerator: public StubCodeGenerator {
 
     // VM-Call: BarrierSetNMethod::nmethod_stub_entry_barrier(address* return_address_ptr)
     __ call_VM_leaf(CAST_FROM_FN_PTR(address, BarrierSetNMethod::nmethod_stub_entry_barrier));
-    __ z_ltr(Z_R0_scratch, Z_RET);
+    __ z_ltr(Z_RET, Z_RET);
 
     // VM-Call Epilogue
     __ restore_volatile_regs(Z_SP, frame::z_abi_160_size, true, false);

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25764#issuecomment-2977015369

From sroy at openjdk.org  Mon Jun 16 15:09:40 2025
From: sroy at openjdk.org (Suchismith Roy)
Date: Mon, 16 Jun 2025 15:09:40 GMT
Subject: RFR: JDK-8349077 : Rename GenerationCounters::update_all
Message-ID: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>

JBS Issue : [JDK-8349077](https://bugs.openjdk.org/browse/JDK-8349077)

we found the method names update_all of the class GenerationCounters and its subclasses are not so good. It is better to rename it to something like update_capacity (such as ZGenerationCounters::update_capacity).



Update_capacity exists, since update_all updates the size and used , I found update_memory_state as a better name for this method.

-------------

Commit messages:
 - update_capacity exists

Changes: https://git.openjdk.org/jdk/pull/25833/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25833&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8349077
  Stats: 45 lines in 15 files changed: 0 ins; 0 del; 45 mod
  Patch: https://git.openjdk.org/jdk/pull/25833.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25833/head:pull/25833

PR: https://git.openjdk.org/jdk/pull/25833

From rwestrel at redhat.com  Mon Jun 16 15:13:55 2025
From: rwestrel at redhat.com (Roland Westrelin)
Date: Mon, 16 Jun 2025 17:13:55 +0200
Subject: C2 Jit compiler fails accessing off-heap memory via Unsafe with
 ShenandoahGC
In-Reply-To: <49fb15af-4525-4df9-b895-e3ae82b30560@gmail.com>
References: <136180f2-df08-444b-8d80-63a10296a85f@gmail.com>
 <87plfm6t0d.fsf@redhat.com>
 <49fb15af-4525-4df9-b895-e3ae82b30560@gmail.com>
Message-ID: <87y0troh1o.fsf@redhat.com>


Hi Sergey,

> Are there any chances to get it backported to jdk 17 and 21?

I intend to backport it to 25, 21 and 17.

> Our product (Apache Ignite) heavily relies on off-heap memory operations 
> via Unsafe.  I already applied the work around in our code but still not 
> 100% sure that problem wouldn't hit in some other place.

So the bug could affect end users of Apache Ignite? That's useful to
know and I'll use that to motivate the backports.

Roland.


From ayang at openjdk.org  Mon Jun 16 15:47:28 2025
From: ayang at openjdk.org (Albert Mingkun Yang)
Date: Mon, 16 Jun 2025 15:47:28 GMT
Subject: RFR: JDK-8349077 : Rename GenerationCounters::update_all
In-Reply-To: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
References: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
Message-ID: <PSAFnFHWw74BD-uP56umBijHt_2SYAWh0faSZMrAt6c=.e09b1cfc-9906-4571-8a84-a2f521149589@github.com>

On Mon, 16 Jun 2025 14:39:26 GMT, Suchismith Roy <sroy at openjdk.org> wrote:

> JBS Issue : [JDK-8349077](https://bugs.openjdk.org/browse/JDK-8349077)
> 
> we found the method names update_all of the class GenerationCounters and its subclasses are not so good. It is better to rename it to something like update_capacity (such as ZGenerationCounters::update_capacity).
> 
> 
> 
> Update_capacity exists, since update_all updates the size and used , I found update_memory_state as a better name for this method.

I believe the ticket was only about this method, which handles only capacity.


void GenerationCounters::update_all(size_t curr_capacity) {
  _current_size->set_value(curr_capacity);
}


However, in the patch, this method is renamed as well. Not sure if this is intentional.


void HSpaceCounters::update_all(size_t capacity, size_t used) {
  update_capacity(capacity);
  update_used(used);
}

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25833#issuecomment-2977143602

From yzheng at openjdk.org  Mon Jun 16 16:14:28 2025
From: yzheng at openjdk.org (Yudi Zheng)
Date: Mon, 16 Jun 2025 16:14:28 GMT
Subject: RFR: JDK-8349077 : Rename GenerationCounters::update_all
In-Reply-To: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
References: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
Message-ID: <_dbY3cVxby--JIeliaIXLOB8jKH4oPX97JRvj3AqqhM=.30829434-40eb-4113-bce2-de119f26a27b@github.com>

On Mon, 16 Jun 2025 14:39:26 GMT, Suchismith Roy <sroy at openjdk.org> wrote:

> JBS Issue : [JDK-8349077](https://bugs.openjdk.org/browse/JDK-8349077)
> 
> we found the method names update_all of the class GenerationCounters and its subclasses are not so good. It is better to rename it to something like update_capacity (such as ZGenerationCounters::update_capacity).
> 
> 
> 
> Update_capacity exists, since update_all updates the size and used , I found update_memory_state as a better name for this method.

Since the base is before the branch off, could you please merge master before integration and see if GHA still passes? This also helps us testing libgraal compilation.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25833#issuecomment-2977233601

From sroy at openjdk.org  Mon Jun 16 16:36:14 2025
From: sroy at openjdk.org (Suchismith Roy)
Date: Mon, 16 Jun 2025 16:36:14 GMT
Subject: RFR: JDK-8349077 : Rename GenerationCounters::update_all [v2]
In-Reply-To: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
References: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
Message-ID: <yGGVqIj5czY74eAIfGmyfMGXKU8eohyXvGG2Gcpgr14=.75a73dc4-ea20-4c3c-8108-a6f98796bedd@github.com>

> JBS Issue : [JDK-8349077](https://bugs.openjdk.org/browse/JDK-8349077)
> 
> we found the method names update_all of the class GenerationCounters and its subclasses are not so good. It is better to rename it to something like update_capacity (such as ZGenerationCounters::update_capacity).
> 
> 
> 
> Update_capacity exists, since update_all updates the size and used , I found update_memory_state as a better name for this method.

Suchismith Roy has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'openjdk:master' into update_memory_state
 - update_capacity exists

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25833/files
  - new: https://git.openjdk.org/jdk/pull/25833/files/cf2d66d5..419f3d5f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25833&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25833&range=00-01

  Stats: 202092 lines in 3611 files changed: 122500 ins; 53972 del; 25620 mod
  Patch: https://git.openjdk.org/jdk/pull/25833.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25833/head:pull/25833

PR: https://git.openjdk.org/jdk/pull/25833

From xpeng at openjdk.org  Mon Jun 16 16:47:30 2025
From: xpeng at openjdk.org (Xiaolong Peng)
Date: Mon, 16 Jun 2025 16:47:30 GMT
Subject: RFR: 8357976: GenShen crash in swap_card_tables: Should be clean
 [v3]
In-Reply-To: <dpo3e1f5q1xe3MxkRyGoYs26jykQl7qg8YYtuUTl8oA=.0ba67ed6-ba73-4b14-b949-aae6003de160@github.com>
References: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
 <dpo3e1f5q1xe3MxkRyGoYs26jykQl7qg8YYtuUTl8oA=.0ba67ed6-ba73-4b14-b949-aae6003de160@github.com>
Message-ID: <ph5oOLlFbu-Sn5RIISQLpz_5URG41wauFE49xRRvhd8=.2e2d2118-e3f8-49e5-80cd-673c07233b7a@github.com>

On Thu, 12 Jun 2025 22:10:12 GMT, William Kemper <wkemper at openjdk.org> wrote:

>> Degenerated cycles must also clean the `read` card table before swapping it with the `write` card table.
>
> William Kemper has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Revert "Consolidate read table cleaning"
>   
>   This reverts commit 9552021cbeec699e7b04db81fa68819c23b7dab7.

Marked as reviewed by xpeng (Committer).

-------------

PR Review: https://git.openjdk.org/jdk/pull/25735#pullrequestreview-2932825279

From xpeng at openjdk.org  Mon Jun 16 16:47:30 2025
From: xpeng at openjdk.org (Xiaolong Peng)
Date: Mon, 16 Jun 2025 16:47:30 GMT
Subject: RFR: 8357976: GenShen crash in swap_card_tables: Should be clean
 [v3]
In-Reply-To: <GHjpKb3XaH9ordY5cWVGnqEwjwrXs_pPfgoxnckwNNk=.5e985710-7a3f-4c21-93a0-b14fecf8a845@github.com>
References: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
 <dpo3e1f5q1xe3MxkRyGoYs26jykQl7qg8YYtuUTl8oA=.0ba67ed6-ba73-4b14-b949-aae6003de160@github.com>
 <GHjpKb3XaH9ordY5cWVGnqEwjwrXs_pPfgoxnckwNNk=.5e985710-7a3f-4c21-93a0-b14fecf8a845@github.com>
Message-ID: <5VL86NUy8SQCA02KjzGeF74KhEC7b7uFcKqipeiSJuE=.cca1f9fe-f124-4e5f-bf12-a2a13335db89@github.com>

On Thu, 12 Jun 2025 22:44:44 GMT, William Kemper <wkemper at openjdk.org> wrote:

> We don't want to clean the read table during init-mark because that's a safepoint. We can safely clean the read table concurrently because only the GC thread has access to it.

Thanks, we want to minimize the time at safepoint, I understand this part. My question was about swap_card_tables, I we don't have to do it at safepoint, we could move swap_card_tables out of the init-mark safepoint and move to close to mark_read_table_as_clean to make the code slight earlier to understand. @ysramakrishna also suggested this, I saw your attempt and rollback, thanks for the explanations.

It looks good to me.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25735#issuecomment-2977329569

From serge.korotkov at gmail.com  Mon Jun 16 16:51:02 2025
From: serge.korotkov at gmail.com (Sergey Korotkov)
Date: Mon, 16 Jun 2025 23:51:02 +0700
Subject: C2 Jit compiler fails accessing off-heap memory via Unsafe with
 ShenandoahGC
In-Reply-To: <87y0troh1o.fsf@redhat.com>
References: <136180f2-df08-444b-8d80-63a10296a85f@gmail.com>
 <87plfm6t0d.fsf@redhat.com> <49fb15af-4525-4df9-b895-e3ae82b30560@gmail.com>
 <87y0troh1o.fsf@redhat.com>
Message-ID: <05a01774-0e2f-4666-a16f-fcc6477da9d8@gmail.com>

Hi Roland,

On 6/16/25 22:13, Roland Westrelin wrote:
> 
> Hi Sergey,
> 
>> Are there any chances to get it backported to jdk 17 and 21?
> 
> I intend to backport it to 25, 21 and 17.

Thanks for that.

> 
>> Our product (Apache Ignite) heavily relies on off-heap memory operations
>> via Unsafe.  I already applied the work around in our code but still not
>> 100% sure that problem wouldn't hit in some other place.
> 
> So the bug could affect end users of Apache Ignite? That's useful to
> know and I'll use that to motivate the backports.

Yes,

it was a real failure in production for one user recently: 
https://issues.apache.org/jira/browse/IGNITE-17734

Thanks,
--
   Sergey



From ysr at openjdk.org  Mon Jun 16 17:15:30 2025
From: ysr at openjdk.org (Y. Srinivas Ramakrishna)
Date: Mon, 16 Jun 2025 17:15:30 GMT
Subject: RFR: 8359394: GC cause cleanup
In-Reply-To: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>
References: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>
Message-ID: <yafhgRUcOsermOyGoRk3A1cklCmJrjOtBUuhRDBSVbg=.3aa7f942-000d-4fc4-b00f-e0245db73509@github.com>

On Thu, 12 Jun 2025 23:42:41 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Remove `GCCause::_no_cause_specified` (only referenced by Shenandoah) and add a case for `_shenandoah_humongous_allocation_failure` in `GCCause::to_string` and the `SA` analog.

Thanks for changing the title/summary to broaden scope.

Re-approved; ?

-------------

Marked as reviewed by ysr (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25789#pullrequestreview-2932895948

From andrew at openjdk.org  Mon Jun 16 17:21:54 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 17:21:54 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 3 new changesets
Message-ID: <14e473b3-cd10-4ebc-a54a-72658f2ab2e9@openjdk.org>

Changeset: ebbd3a87
Branch: master
Author:    Adam Farley <afarley at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-03-09 17:15:22 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ebbd3a87b0c473a744499d5f7691e5207cd73186

8303828: [Solaris] Broken jdk8u build after JDK-8266391

Reviewed-by: sgehwolf, andrew

= jdk/src/solaris/classes/jdk/internal/platform/SystemMetrics.java

Changeset: 89aeae16
Branch: master
Author:    Adam Farley <afarley at openjdk.org>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-03-15 14:11:17 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/89aeae16e85ddfbd581cb86d0b0480b1e2d50e99

8304053: Revert os specific stubs for SystemMetrics

Reviewed-by: sgehwolf, andrew

! jdk/make/CompileJavaClasses.gmk
- jdk/src/aix/classes/jdk/internal/platform/SystemMetrics.java
- jdk/src/macosx/classes/jdk/internal/platform/SystemMetrics.java
- jdk/src/unix/classes/jdk/internal/platform/SystemMetrics.java

Changeset: 0c8f76cd
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 03:11:37 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0c8f76cd327bb68279a5388c5858d43dc7591e7b

Merge jdk8u372-b06

Added tag jdk8u372-b06 for changeset 89aeae16e85



From andrew at openjdk.org  Mon Jun 16 17:22:03 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 17:22:03 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u372-b06 for changeset
 89aeae16
Message-ID: <2385f4c4-fd84-4e85-8bbd-2afd84f340ae@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-03-21 18:09:33 +0000

Added tag jdk8u372-b06 for changeset 89aeae16e85
Changeset: 89aeae16
Author:    Adam Farley <afarley at openjdk.org>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-03-15 14:11:17 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/89aeae16e85ddfbd581cb86d0b0480b1e2d50e99


From andrew at openjdk.org  Mon Jun 16 17:22:03 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 17:22:03 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <C8viiJQuTCcRHHAvcsOBc4-7crpLMuPWexe4k4gFiTQ=.20de8736-371b-4800-b2f2-930523469e89@github.com>
References: <C8viiJQuTCcRHHAvcsOBc4-7crpLMuPWexe4k4gFiTQ=.20de8736-371b-4800-b2f2-930523469e89@github.com>
Message-ID: <1ak9hENzPrjCpd3AiPSc7MxqiD-UMHS2w_DxVvwAkH0=.5c4aeeec-4a76-4da7-afcd-4fe586562b3c@github.com>

> Merge jdk8u372-b06
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/45/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/45/files/0c8f76cd..0c8f76cd

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=45&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=45&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/45.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/45/head:pull/45

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/45

From andrew at openjdk.org  Mon Jun 16 17:22:06 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 17:22:06 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u372-b06 for
 changeset 0c8f76cd
Message-ID: <b279f685-449c-465d-8e9c-f17a8a4eb1e2@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 03:30:38 +0000

Added tag shenandoah8u372-b06 for changeset 0c8f76cd327
Changeset: 0c8f76cd
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 03:11:37 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0c8f76cd327bb68279a5388c5858d43dc7591e7b


From iris at openjdk.org  Mon Jun 16 17:22:03 2025
From: iris at openjdk.org (Iris Clark)
Date: Mon, 16 Jun 2025 17:22:03 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <C8viiJQuTCcRHHAvcsOBc4-7crpLMuPWexe4k4gFiTQ=.20de8736-371b-4800-b2f2-930523469e89@github.com>
References: <C8viiJQuTCcRHHAvcsOBc4-7crpLMuPWexe4k4gFiTQ=.20de8736-371b-4800-b2f2-930523469e89@github.com>
Message-ID: <6J43LXEy_nWK2t61Y3o9D2Y1FWPB14uyOyPtf37nSLQ=.da5aa21b-47dc-4d51-9946-813e33cba8be@github.com>

On Mon, 16 Jun 2025 13:26:40 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u372-b06
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/45

From stefank at openjdk.org  Mon Jun 16 18:12:34 2025
From: stefank at openjdk.org (Stefan Karlsson)
Date: Mon, 16 Jun 2025 18:12:34 GMT
Subject: RFR: 8359394: GC cause cleanup
In-Reply-To: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>
References: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>
Message-ID: <nylY2hgZL81KmVnTDF-HBBGPRRfHd_Y5JLYda6PFZh0=.b4a48507-7378-40dd-a6e3-30311379aca9@github.com>

On Thu, 12 Jun 2025 23:42:41 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Remove `GCCause::_no_cause_specified` (only referenced by Shenandoah) and add a case for `_shenandoah_humongous_allocation_failure` in `GCCause::to_string` and the `SA` analog.

I've reviewed the non-shenandoah parts of this patch.

-------------

Marked as reviewed by stefank (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25789#pullrequestreview-2933048021

From ysr at openjdk.org  Mon Jun 16 18:36:29 2025
From: ysr at openjdk.org (Y. Srinivas Ramakrishna)
Date: Mon, 16 Jun 2025 18:36:29 GMT
Subject: RFR: 8357976: GenShen crash in swap_card_tables: Should be clean
 [v3]
In-Reply-To: <dpo3e1f5q1xe3MxkRyGoYs26jykQl7qg8YYtuUTl8oA=.0ba67ed6-ba73-4b14-b949-aae6003de160@github.com>
References: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
 <dpo3e1f5q1xe3MxkRyGoYs26jykQl7qg8YYtuUTl8oA=.0ba67ed6-ba73-4b14-b949-aae6003de160@github.com>
Message-ID: <j6ukqICqyUmNm0Dnw-ojbiBLLm8Wce3VacWyFh-sAWU=.dbe1fe11-876b-46a0-8fa2-79136c416d4e@github.com>

On Thu, 12 Jun 2025 22:10:12 GMT, William Kemper <wkemper at openjdk.org> wrote:

>> Degenerated cycles must also clean the `read` card table before swapping it with the `write` card table.
>
> William Kemper has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Revert "Consolidate read table cleaning"
>   
>   This reverts commit 9552021cbeec699e7b04db81fa68819c23b7dab7.

Thanks for the explanation; let me digest this and re-review with this background. I'll update before EOD.

> @ysramakrishna - The refactoring you suggest is not so simple, alas. We have to be very careful about the ordering of cleaning the `read` table, resetting the mark bitmap and swapping the card tables. Genshen does not clean the `read` table at the end of a concurrent cycle (we _could_ do this, but we'd still need to do the same in a degenerated cycle). The complexity comes from swapping the card tables in a concurrent cycle. We must not let a subsequent degenerated cycle swap them a second time. The degenerated cycle can only clean the `read` table if there was no active concurrent cycle (lest it throw away critical remembered set data).
> 
> However, the degenerated cycle must also clear the mark bitmaps if the concurrent cycle degenerated during the root scan (the degenerated cycle will rescan the roots). Of course, we cannot clear the mark bitmaps if the concurrent cycle degenerated during the mark phase. So, for the degenerated cycle, clearing the mark bitmaps and cleaning the read table need to happen in two different cases and it doesn't work if they're combined into the same method (and I don't think adding a method parameter to sometimes clear the mark bitmap and sometimes the read table will make the code any easier to understand).

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25735#issuecomment-2977654895

From andrew at openjdk.org  Mon Jun 16 19:09:41 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 19:09:41 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 17 new changesets
Message-ID: <e9c0bc39-18ee-4603-8061-867afd79ec74@openjdk.org>

Changeset: f44ca40a
Branch: master
Author:    Paul Hohensee <phh at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-04-13 18:24:54 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f44ca40a433db9c6951f9758cf0e2e5bafbdd0ef

8263404: RsaPrivateKeySpec is always recognized as RSAPrivateCrtKeySpec in RSAKeyFactory.engineGetKeySpec

Reviewed-by: simonis, mbalao, andrew
Backport-of: a5d7de235101696463dba22792703c6809ff7fc4

! jdk/src/share/classes/sun/security/pkcs11/P11RSAKeyFactory.java
! jdk/src/share/classes/sun/security/rsa/RSAKeyFactory.java
! jdk/test/java/security/KeyFactory/KeyFactoryGetKeySpecForInvalidSpec.java
+ jdk/test/sun/security/pkcs11/nss/p11-nss-sensitive.txt
+ jdk/test/sun/security/pkcs11/rsa/TestP11KeyFactoryGetRSAKeySpec.java

Changeset: 1cf3efb0
Branch: master
Author:    Martin Balao <mbalao at redhat.com>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-03-01 17:05:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1cf3efb037cb9056c53b3b9c65fb751dd13d3e12

8287404: Improve ping times

Reviewed-by: andrew
Backport-of: 5a054b372dbd751fe1b312375153f13e70d7131f

! jdk/src/solaris/native/java/net/Inet4AddressImpl.c
! jdk/src/solaris/native/java/net/Inet6AddressImpl.c

Changeset: f7f19668
Branch: master
Author:    Martin Balao <mbalao at redhat.com>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-03-02 19:58:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f7f196685f60a74eaff87631591a17bbbaf7831b

8288436: Improve Xalan supports

Reviewed-by: andrew
Backport-of: 6899dff264c9030a3016e292c3f3f6738bde97cc

! jaxp/src/com/sun/org/apache/xml/internal/utils/XMLReaderManager.java

Changeset: 301c9adc
Branch: master
Author:    Jamil Nimeh <jnimeh at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-10 19:01:19 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/301c9adce1711d9eb3f663bef07bbb045b907332

8294474: Better AES support

Reviewed-by: yan, andrew
Backport-of: 0c534f3309a308e89363ec69dee74d95fd9647a4

! jdk/src/share/classes/sun/security/ssl/KeyUpdate.java
! jdk/src/share/classes/sun/security/ssl/SSLEngineImpl.java
! jdk/src/share/classes/sun/security/ssl/SSLSocketImpl.java
! jdk/src/share/classes/sun/security/ssl/TransportContext.java

Changeset: a7fbe33f
Branch: master
Author:    Alexei Voitylov <avoitylov at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-02-27 16:17:35 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/a7fbe33ffece7c28c9808fcc631c2d4db4a59757

8295304: Runtime support improvements

Reviewed-by: mbalao, andrew
Backport-of: 9c31d51bd5fc17e3914142c2461f3abfe71651d0

! jdk/src/share/classes/java/lang/ProcessBuilder.java

Changeset: 07d29838
Branch: master
Author:    Martin Balao <mbalao at redhat.com>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-03-16 18:28:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/07d29838c820d629bef1da8bc6e1084f48e0a519

8296676: Improve String platform support

Reviewed-by: avoitylov, andrew
Backport-of: d083a3c21e8849ed2a8b79aba37b46d921886a05

! jdk/src/share/classes/java/net/InetAddress.java
! jdk/src/share/classes/sun/net/www/protocol/http/HttpURLConnection.java

Changeset: a02c2bfb
Branch: master
Author:    Olga Mikhaltsova <omikhaltcova at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-03-13 02:31:16 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/a02c2bfb23dec01c987af1859654f0e4b44d70c6

8296684: Improve String platform support

Reviewed-by: mbalao, andrew
Backport-of: 9ae682726873de27cef4d3bd5523713f4ff98266

! jdk/src/aix/classes/sun/tools/attach/AixVirtualMachine.java
! jdk/src/share/classes/sun/tools/attach/HotSpotVirtualMachine.java
! jdk/src/solaris/classes/sun/tools/attach/BsdVirtualMachine.java
! jdk/src/solaris/classes/sun/tools/attach/LinuxVirtualMachine.java
! jdk/src/solaris/classes/sun/tools/attach/SolarisVirtualMachine.java
! jdk/src/windows/classes/sun/tools/attach/WindowsVirtualMachine.java

Changeset: 2a54b080
Branch: master
Author:    Ekaterina Vergizova <evergizova at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-01-20 15:18:35 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/2a54b080ed565c1d1ddadad27d2e4b77058ef2c7

8296692: Improve String platform support

Reviewed-by: mbalao, andrew
Backport-of: ed8643947e21263588cb6e9202efb3a30f450c4e

! jdk/src/solaris/classes/sun/management/FileSystemImpl.java
! jdk/src/windows/classes/sun/management/FileSystemImpl.java

Changeset: 17ba2dfb
Branch: master
Author:    Andrew Brygin <bae at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-03-23 12:14:34 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/17ba2dfb47f22a6a89609c94be50cabc6df5c8c9

8296700: Improve String platform support

Reviewed-by: phh, mbalao, andrew

! jdk/src/share/classes/java/util/zip/ZipFile.java

Changeset: 6089a4fc
Branch: master
Author:    Yuri Nesterenko <yan at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-03-03 11:32:12 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/6089a4fcc583ab156c22eae8196ce5073bf90032

8296832: Improve Swing platform support

Reviewed-by: mbalao, andrew
Backport-of: a81c810a76d91b79917417ed22e5e5aa530690ca

! jdk/src/share/classes/javax/swing/plaf/basic/BasicHTML.java
! jdk/src/share/classes/javax/swing/text/html/HTMLEditorKit.java
! jdk/src/share/classes/javax/swing/text/html/ObjectView.java
! jdk/src/share/classes/sun/swing/SwingAccessor.java

Changeset: ed70f64a
Branch: master
Author:    Martin Balao <mbalao at redhat.com>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-03-03 14:50:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ed70f64af92da3994fd9164d454c5323fa56794b

8297371: Improve UTF8 representation redux

Reviewed-by: yan, andrew
Backport-of: a44eb133d3cdb190abb0210c201e315d94d09dc7

! jdk/src/share/native/common/jni_util.c

Changeset: 1a42e357
Branch: master
Author:    Andrew Brygin <bae at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-04-17 21:48:35 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1a42e35729d1a0b049a13b762b0cbb4f046081ea

8298191: Enhance object reclamation process

Reviewed-by: phh
Backport-of: 780327d1de4fee3e77c3e48018908bf0c3fcd55a

! hotspot/src/share/vm/gc_implementation/g1/dirtyCardQueue.hpp
! hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! hotspot/src/share/vm/gc_implementation/g1/g1RemSet.cpp
! hotspot/src/share/vm/gc_implementation/g1/ptrQueue.hpp

Changeset: 71bb00a5
Branch: master
Author:    Alexey Bakhtin <abakhtin at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-04-12 18:30:15 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/71bb00a5d86affa8c2c8934ab892fe6c5191abdc

8298310: Enhance TLS session negotiation

Reviewed-by: mbalao, andrew
Backport-of: 9a14b363feaaa1a1831fcc8620d41b4db2e0110a

! jdk/src/share/classes/sun/security/provider/certpath/AdjacencyList.java
! jdk/src/share/classes/sun/security/provider/certpath/Builder.java
! jdk/src/share/classes/sun/security/provider/certpath/ForwardBuilder.java
! jdk/src/share/classes/sun/security/provider/certpath/ForwardState.java
! jdk/src/share/classes/sun/security/provider/certpath/State.java
! jdk/src/share/classes/sun/security/provider/certpath/SunCertPathBuilder.java

Changeset: 33758aeb
Branch: master
Author:    Alexei Voitylov <avoitylov at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-02-27 16:17:35 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/33758aeb351a6d8e6bedc5457b501d1e6d471810

8298667: Improved path handling

Reviewed-by: mbalao, andrew
Backport-of: 900abc284669d1aadeac8026ad618c9f1dc553a6

! jdk/src/solaris/classes/sun/nio/fs/UnixUriUtils.java

Changeset: 74148f81
Branch: master
Author:    Alexei Voitylov <avoitylov at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-02-27 16:17:35 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/74148f814267aec83e35f2664849570d8ea68826

8299129: Enhance NameService lookups

Reviewed-by: mbalao, andrew
Backport-of: 1aef50354aaa0831b58de81db3d6bf30b9a277d1

! jdk/src/share/classes/java/net/InetAddress.java

Changeset: 338acde3
Branch: master
Author:    Victor Rudometov <vrudomet at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-04-17 15:47:04 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/338acde33061b8af9d30aa510d86ec8156009021

8305113: (tz) Update Timezone Data to 2023c

Reviewed-by: andrew
Backport-of: ed9592c6e81f82e2bf6508ce45ba15aad8232181

! jdk/make/data/tzdata/VERSION
! jdk/make/data/tzdata/africa
! jdk/make/data/tzdata/antarctica
! jdk/make/data/tzdata/asia
! jdk/make/data/tzdata/australasia
! jdk/make/data/tzdata/backward
! jdk/make/data/tzdata/europe
! jdk/make/data/tzdata/iso3166.tab
! jdk/make/data/tzdata/leapseconds
! jdk/make/data/tzdata/northamerica
! jdk/make/data/tzdata/southamerica
! jdk/make/data/tzdata/zone.tab
! jdk/src/share/classes/sun/util/calendar/ZoneInfoFile.java
! jdk/test/java/util/TimeZone/TimeZoneData/VERSION
! jdk/test/java/util/TimeZone/TimeZoneData/aliases.txt
! jdk/test/java/util/TimeZone/TimeZoneData/displaynames.txt
! jdk/test/java/util/TimeZone/TimeZoneTest.java
! jdk/test/sun/util/calendar/zi/tzdata/VERSION
! jdk/test/sun/util/calendar/zi/tzdata/africa
! jdk/test/sun/util/calendar/zi/tzdata/antarctica
! jdk/test/sun/util/calendar/zi/tzdata/asia
! jdk/test/sun/util/calendar/zi/tzdata/australasia
! jdk/test/sun/util/calendar/zi/tzdata/backward
! jdk/test/sun/util/calendar/zi/tzdata/europe
! jdk/test/sun/util/calendar/zi/tzdata/iso3166.tab
! jdk/test/sun/util/calendar/zi/tzdata/leapseconds
! jdk/test/sun/util/calendar/zi/tzdata/northamerica
! jdk/test/sun/util/calendar/zi/tzdata/southamerica
! jdk/test/sun/util/calendar/zi/tzdata/zone.tab

Changeset: c2d68ead
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 18:19:23 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c2d68ead49e357aa994f2ac9b6d0cb7abac90f5f

Merge jdk8u372-b07

Added tag jdk8u372-b07 for changeset 338acde3306



From andrew at openjdk.org  Mon Jun 16 19:09:52 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 19:09:52 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u372-b07 for changeset
 338acde3
Message-ID: <387ec247-cbb6-4dd1-adde-93ce50c95642@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-04-18 06:20:23 +0000

Added tag jdk8u372-b07 for changeset 338acde3306
Changeset: 338acde3
Author:    Victor Rudometov <vrudomet at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-04-17 15:47:04 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/338acde33061b8af9d30aa510d86ec8156009021


From andrew at openjdk.org  Mon Jun 16 19:09:56 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 19:09:56 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u372-b07 for
 changeset c2d68ead
Message-ID: <dfc581cb-4c51-44a2-93c9-8fd60988bd99@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 20:01:47 +0000

Added tag shenandoah8u372-b07 for changeset c2d68ead49e
Changeset: c2d68ead
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 18:19:23 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c2d68ead49e357aa994f2ac9b6d0cb7abac90f5f


From andrew at openjdk.org  Mon Jun 16 19:09:59 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 19:09:59 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u372-ga for changeset
 338acde3
Message-ID: <376ebc69-352b-4e9f-bf39-f3a6752271f0@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-04-20 09:43:15 +0000

Added tag jdk8u372-ga for changeset 338acde3306
Changeset: 338acde3
Author:    Victor Rudometov <vrudomet at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-04-17 15:47:04 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/338acde33061b8af9d30aa510d86ec8156009021


From andrew at openjdk.org  Mon Jun 16 19:10:05 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 19:10:05 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u372-ga for
 changeset c2d68ead
Message-ID: <2676537a-6732-4725-a508-c82cf169110b@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 20:02:11 +0000

Added tag shenandoah8u372-ga for changeset c2d68ead49e
Changeset: c2d68ead
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 18:19:23 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c2d68ead49e357aa994f2ac9b6d0cb7abac90f5f


From wkemper at openjdk.org  Mon Jun 16 20:46:28 2025
From: wkemper at openjdk.org (William Kemper)
Date: Mon, 16 Jun 2025 20:46:28 GMT
Subject: RFR: 8357976: GenShen crash in swap_card_tables: Should be clean
 [v3]
In-Reply-To: <5VL86NUy8SQCA02KjzGeF74KhEC7b7uFcKqipeiSJuE=.cca1f9fe-f124-4e5f-bf12-a2a13335db89@github.com>
References: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
 <dpo3e1f5q1xe3MxkRyGoYs26jykQl7qg8YYtuUTl8oA=.0ba67ed6-ba73-4b14-b949-aae6003de160@github.com>
 <GHjpKb3XaH9ordY5cWVGnqEwjwrXs_pPfgoxnckwNNk=.5e985710-7a3f-4c21-93a0-b14fecf8a845@github.com>
 <5VL86NUy8SQCA02KjzGeF74KhEC7b7uFcKqipeiSJuE=.cca1f9fe-f124-4e5f-bf12-a2a13335db89@github.com>
Message-ID: <a7BOAdBd3wtxUihX6nd1aFSR9aV6YxZu5KspXLKyWJI=.e53724b0-9c39-47e7-ac8e-b2aa6735cbd0@github.com>

On Mon, 16 Jun 2025 16:44:25 GMT, Xiaolong Peng <xpeng at openjdk.org> wrote:

>> @pengxiaolong - We don't want to clean the read table during init-mark because that's a safepoint. We can safely clean the read table concurrently because only the GC thread has access to it.
>> 
>> @ysramakrishna - The refactoring you suggest is not so simple, alas. We have to be very careful about the ordering of cleaning the `read` table, resetting the mark bitmap and swapping the card tables. Genshen does not clean the `read` table at the end of a concurrent cycle (we _could_ do this, but we'd still need to do the same in a degenerated cycle). The complexity comes from swapping the card tables in a concurrent cycle. We must not let a subsequent degenerated cycle swap them a second time. The degenerated cycle can only clean the `read` table if there was no active concurrent cycle (lest it throw away critical remembered set data). 
>> 
>> However, the degenerated cycle must also clear the mark bitmaps if the concurrent cycle degenerated during the root scan (the degenerated cycle will rescan the roots). Of course, we cannot clear the mark bitmaps if the concurrent cycle degenerated during the mark phase. So, for the degenerated cycle, clearing the mark bitmaps and cleaning the read table need to happen in two different cases and it doesn't work if they're combined into the same method (and I don't think adding a method parameter to sometimes clear the mark bitmap and sometimes the read table will make the code any easier to understand).
>
>> We don't want to clean the read table during init-mark because that's a safepoint. We can safely clean the read table concurrently because only the GC thread has access to it.
> 
> Thanks, we want to minimize the time at safepoint, I understand this part. My question was about swap_card_tables, I we don't have to do it at safepoint, we could move swap_card_tables out of the init-mark safepoint and move to close to mark_read_table_as_clean to make the code slight earlier to understand. @ysramakrishna also suggested this, I saw your attempt and rollback, thanks for the explanations.
> 
> It looks good to me.

@pengxiaolong - I think we _could_ swap card table pointers with a thread local handshake, but if we don't remove `init-mark` entirely, it would just mean stopping all the threads twice. I'm inclined to leave it on the safepoint for now.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25735#issuecomment-2978071741

From andrew at openjdk.org  Mon Jun 16 21:51:10 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 21:51:10 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <8QGJ4uHncrOw8kiROQLJR-eHoJSjOxn8jXU22GqoMzg=.78399e84-639c-46b9-a82c-1aaaeecf3a9a@github.com>

Merge jdk8u382-b01

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

Commit messages:
 - Merge jdk8u382-b01
 - 8305165: [8u] ServiceThread::nmethods_do is not called to keep nmethods from being zombied while in the queue
 - Merge
 - 8282345: handle latest VS2022 in abstract_vm_version
 - 8276841: Add support for Visual Studio 2022
 - 8215105: java/awt/Robot/HiDPIScreenCapture/ScreenCaptureTest.java: Wrong Pixel Color
 - 8277881: Missing SessionID in TLS1.3 resumption in compatibility mode
 - 8151460: Metaspace counters can have inconsistent values
 - 8305113: (tz) Update Timezone Data to 2023c
 - 8263404: RsaPrivateKeySpec is always recognized as RSAPrivateCrtKeySpec in RSAKeyFactory.engineGetKeySpec
 - ... and 14 more: https://git.openjdk.org/shenandoah-jdk8u/compare/c2d68ead...e55aa4f7

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=47&range=00.0
 - jdk8u:master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=47&range=00.1

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/47/files
  Stats: 12470 lines in 56 files changed: 10820 ins; 555 del; 1095 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/47.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/47/head:pull/47

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/47

From andrew at openjdk.org  Mon Jun 16 22:45:50 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 22:45:50 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 24 new changesets
Message-ID: <1271d5dc-b76c-4679-887d-e624996ff03f@openjdk.org>

Changeset: 3d1fc4bf
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-03-03 18:04:02 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3d1fc4bf31e7b4bc7f3d0627f7aee44fe48d414c

8303462: Bump update version of OpenJDK: 8u382

Reviewed-by: sgehwolf

! .jcheck/conf
! common/autoconf/version-numbers

Changeset: eb2aee68
Branch: master
Author:    Dongbo He <dongbohe at openjdk.org>
Committer: Roland Westrelin <roland at openjdk.org>
Date:      2023-03-06 14:56:38 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/eb2aee68eaff5d4880b52bc8c01967215dd6a741

8185736: missing default exception handler in calls to rethrow_Stub

Reviewed-by: roland
Backport-of: b97f668af3f55c0d67cdd7a4a191bd81cdc4aa78

! hotspot/src/share/vm/opto/doCall.cpp
! hotspot/src/share/vm/opto/output.cpp

Changeset: 7c5d77cb
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-03-08 02:58:56 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/7c5d77cbd2cf993643d48ded46342e01772a96cc

Merge


Changeset: a7fb08c2
Branch: master
Author:    Zdenek Zambersky <zzambers at openjdk.org>
Date:      2023-03-14 18:32:07 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/a7fb08c286f0181a3bb725b88a7da8c651202be0

8293815: P11PSSSignature.engineUpdate should not print debug messages during normal operation

Backport-of: 80615a6f39bf8929908804ce3f9f5c6d4b3f2864

! jdk/src/share/classes/sun/security/pkcs11/P11PSSSignature.java

Changeset: d6f81510
Branch: master
Author:    Zdenek Zambersky <zzambers at openjdk.org>
Date:      2023-03-14 18:32:53 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d6f8151053f40ccd8c23b9f9eecb40c306a6253f

8282600: SSLSocketImpl should not use user_canceled workaround when not necessary

Backport-of: e80528bf2bd1c87fc1394dd32015281ac6652363

! jdk/src/share/classes/sun/security/ssl/SSLSocketImpl.java

Changeset: ad41d908
Branch: master
Author:    Zdenek Zambersky <zzambers at openjdk.org>
Date:      2023-03-21 11:31:16 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ad41d908eb4655782eb85272d28ccad80fa648eb

8293232: Fix race condition in pkcs11 SessionManager

Backport-of: 939741c0a0a4a5ce2c68d14b15e1f42563bc653d

! jdk/src/share/classes/sun/security/pkcs11/SessionManager.java

Changeset: ae6405fe
Branch: master
Author:    Zdenek Zambersky <zzambers at openjdk.org>
Date:      2023-03-21 11:31:56 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ae6405fe642c8b5092c82ed22b41a281f49961b5

8289301: P11Cipher should not throw out of bounds exception during padding

Reviewed-by: phh
Backport-of: 7d8991978bbe1cc03ba2386f5e699239ba47934c

! jdk/src/share/classes/sun/security/pkcs11/P11Cipher.java
+ jdk/test/sun/security/pkcs11/Cipher/TestPaddingOOB.java

Changeset: de0e5a2d
Branch: master
Author:    Zdenek Zambersky <zzambers at openjdk.org>
Date:      2023-03-21 11:32:39 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/de0e5a2dcb61d3827e38e56655f5263813bfcc0f

8152432: Implement setting jtreg @requires properties vm.flavor, vm.bits, vm.compMode

Reviewed-by: phh, sgehwolf
Backport-of: 24a9e0ac188a37dc57cc4d1bb8d8635abb4c4f89

! hotspot/test/TEST.ROOT
! hotspot/test/runtime/Metaspace/MaxMetaspaceSizeTest.java
! hotspot/test/runtime/NMT/HugeArenaTracking.java
! hotspot/test/runtime/SharedArchiveFile/DefaultUseWithClient.java
+ test/jtreg-ext/requires/VMProps.java

Changeset: ca1c3b1e
Branch: master
Author:    Ravali Yatham <rayatha1 at in.ibm.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-03-27 14:49:05 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ca1c3b1efd8fbe0716e2e6e3b287856299e9ceef

8302791: Add specific ClassLoader object to Proxy IllegalArgumentException message

Reviewed-by: phh
Backport-of: 9f9d678591e02ecaeae7b81eeefb0ba41c7b4dae

! jdk/src/share/classes/java/lang/reflect/Proxy.java

Changeset: 5dc33f2c
Branch: master
Author:    Stewart X Addison <sxa at redhat.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-03-27 15:49:33 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/5dc33f2c9c4de56b76ee56a3526c2fa21394aea2

8295530: Update Zlib Data Compression Library to Version 1.2.13

Reviewed-by: andrew, sgehwolf
Backport-of: 6042c6b9bbacbff1bd47f087f0f19646a20eef97

! THIRD_PARTY_README
! jdk/src/share/native/java/util/zip/zlib/README
! jdk/src/share/native/java/util/zip/zlib/compress.c
! jdk/src/share/native/java/util/zip/zlib/crc32.h
! jdk/src/share/native/java/util/zip/zlib/deflate.c
! jdk/src/share/native/java/util/zip/zlib/deflate.h
! jdk/src/share/native/java/util/zip/zlib/gzguts.h
! jdk/src/share/native/java/util/zip/zlib/gzlib.c
! jdk/src/share/native/java/util/zip/zlib/gzread.c
! jdk/src/share/native/java/util/zip/zlib/gzwrite.c
! jdk/src/share/native/java/util/zip/zlib/infback.c
! jdk/src/share/native/java/util/zip/zlib/inffast.c
! jdk/src/share/native/java/util/zip/zlib/inflate.c
! jdk/src/share/native/java/util/zip/zlib/inflate.h
! jdk/src/share/native/java/util/zip/zlib/inftrees.c
! jdk/src/share/native/java/util/zip/zlib/inftrees.h
! jdk/src/share/native/java/util/zip/zlib/patches/ChangeLog_java
! jdk/src/share/native/java/util/zip/zlib/trees.c
! jdk/src/share/native/java/util/zip/zlib/uncompr.c
! jdk/src/share/native/java/util/zip/zlib/zconf.h
! jdk/src/share/native/java/util/zip/zlib/zcrc32.c
! jdk/src/share/native/java/util/zip/zlib/zlib.h
! jdk/src/share/native/java/util/zip/zlib/zutil.c
! jdk/src/share/native/java/util/zip/zlib/zutil.h

Changeset: cd40350f
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-03-28 18:24:15 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/cd40350f0e69faf4d9a4658408798eb6e389f573

Merge

Reviewed-by: sgehwolf


Changeset: d41618f3
Branch: master
Author:    Alexey Bakhtin <abakhtin at openjdk.org>
Date:      2023-04-04 10:29:11 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/d41618f34f1d2f5416ec3c035f33dcb15cf5ab99

8271199: Mutual TLS handshake fails signing client certificate with custom sensitive PKCS11 key

Reviewed-by: andrew, mbalao
Backport-of: f6232982b91cb2314e96ddbde3984836a810a556

! jdk/src/share/classes/sun/security/rsa/RSAPSSSignature.java
! jdk/src/share/classes/sun/security/rsa/RSAPrivateCrtKeyImpl.java

Changeset: 1ee22a75
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-04-04 16:16:37 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1ee22a7584b79ca66e5dffa1276d55e385eb1909

8263059: security/infra/java/security/cert/CertPathValidator/certification/ComodoCA.java fails due to revoked cert

Reviewed-by: sgehwolf
Backport-of: 0d0aa7ce8116db959836d59477598a8427a4c16f

! jdk/test/security/infra/java/security/cert/CertPathValidator/certification/ComodoCA.java

Changeset: f1c1f969
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-04-07 18:11:14 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f1c1f969a77c9841cf87b2434fa90dcf4002c6be

8278851: Correct signer logic for jars signed with multiple digest algorithms

Reviewed-by: mbalao, andrew
Backport-of: cbe497394786ff76a09f9743040e3ba96ee8298f

! jdk/src/share/classes/java/util/jar/JarVerifier.java
! jdk/src/share/classes/sun/security/util/ManifestEntryVerifier.java
+ jdk/test/sun/security/tools/jarsigner/disdigest/JarWithOneNonDisabledDigestAlg.java

Changeset: 4445e5cc
Branch: master
Author:    Paul Hohensee <phh at openjdk.org>
Date:      2023-04-13 18:24:54 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/4445e5ccc86212c167a3af66ed6c4e6389905bef

8263404: RsaPrivateKeySpec is always recognized as RSAPrivateCrtKeySpec in RSAKeyFactory.engineGetKeySpec

Reviewed-by: simonis, mbalao, andrew
Backport-of: a5d7de235101696463dba22792703c6809ff7fc4

! jdk/src/share/classes/sun/security/pkcs11/P11RSAKeyFactory.java
! jdk/src/share/classes/sun/security/rsa/RSAKeyFactory.java
! jdk/test/java/security/KeyFactory/KeyFactoryGetKeySpecForInvalidSpec.java
+ jdk/test/sun/security/pkcs11/nss/p11-nss-sensitive.txt
+ jdk/test/sun/security/pkcs11/rsa/TestP11KeyFactoryGetRSAKeySpec.java

Changeset: 721c0ee3
Branch: master
Author:    Victor Rudometov <vrudomet at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-04-17 15:47:04 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/721c0ee3d790b7dfbaa7b1018e4921a1d4751fd2

8305113: (tz) Update Timezone Data to 2023c

Reviewed-by: andrew
Backport-of: ed9592c6e81f82e2bf6508ce45ba15aad8232181

! jdk/make/data/tzdata/VERSION
! jdk/make/data/tzdata/africa
! jdk/make/data/tzdata/antarctica
! jdk/make/data/tzdata/asia
! jdk/make/data/tzdata/australasia
! jdk/make/data/tzdata/backward
! jdk/make/data/tzdata/europe
! jdk/make/data/tzdata/iso3166.tab
! jdk/make/data/tzdata/leapseconds
! jdk/make/data/tzdata/northamerica
! jdk/make/data/tzdata/southamerica
! jdk/make/data/tzdata/zone.tab
! jdk/src/share/classes/sun/util/calendar/ZoneInfoFile.java
! jdk/test/java/util/TimeZone/TimeZoneData/VERSION
! jdk/test/java/util/TimeZone/TimeZoneData/aliases.txt
! jdk/test/java/util/TimeZone/TimeZoneData/displaynames.txt
! jdk/test/java/util/TimeZone/TimeZoneTest.java
! jdk/test/sun/util/calendar/zi/tzdata/VERSION
! jdk/test/sun/util/calendar/zi/tzdata/africa
! jdk/test/sun/util/calendar/zi/tzdata/antarctica
! jdk/test/sun/util/calendar/zi/tzdata/asia
! jdk/test/sun/util/calendar/zi/tzdata/australasia
! jdk/test/sun/util/calendar/zi/tzdata/backward
! jdk/test/sun/util/calendar/zi/tzdata/europe
! jdk/test/sun/util/calendar/zi/tzdata/iso3166.tab
! jdk/test/sun/util/calendar/zi/tzdata/leapseconds
! jdk/test/sun/util/calendar/zi/tzdata/northamerica
! jdk/test/sun/util/calendar/zi/tzdata/southamerica
! jdk/test/sun/util/calendar/zi/tzdata/zone.tab

Changeset: 43561ef4
Branch: master
Author:    Thomas Stuefe <stuefe at openjdk.org>
Date:      2023-04-19 11:37:40 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/43561ef435feae8d71913201dbb5e5503e1fc6f3

8151460: Metaspace counters can have inconsistent values

Reviewed-by: phh, sgehwolf
Backport-of: d30aeec30c3832b2514a6f06451897afdaf52fb3

! hotspot/test/gc/metaspace/TestMetaspacePerfCounters.java
! hotspot/test/gc/metaspace/TestPerfCountersAndMemoryPools.java

Changeset: b94b5684
Branch: master
Author:    Dan Lutker <lutkerd at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-04-19 16:43:36 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/b94b5684dcc98e880ab3ef5c343946b95ddf2702

8277881: Missing SessionID in TLS1.3 resumption in compatibility mode

Backport-of: 9d99a377bfb6ffa890db049aee575e97914fc2a1

! jdk/src/share/classes/sun/security/ssl/ClientHello.java
! jdk/src/share/classes/sun/security/ssl/SSLConfiguration.java
! jdk/test/javax/net/ssl/SSLSession/ResumeTLS13withSNI.java

Changeset: cfc654b0
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-04-19 22:13:45 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/cfc654b01421b13dc6fe42783e6ae137e8b9e404

8215105: java/awt/Robot/HiDPIScreenCapture/ScreenCaptureTest.java: Wrong Pixel Color

Reviewed-by: phh
Backport-of: 5bffde3d4ff623283e342d902439b3ca5ebe81f5

! jdk/src/macosx/native/sun/awt/CRobot.m
+ jdk/test/java/awt/Robot/CheckCommonColors/CheckCommonColors.java

Changeset: 644e79d9
Branch: master
Author:    Alexander Scherbatiy <alexsch at openjdk.org>
Date:      2023-04-20 12:34:32 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/644e79d9440ea7ba08f25b762d3d739e511c8f40

8276841: Add support for Visual Studio 2022

Reviewed-by: sgehwolf
Backport-of: 0ba5a81e7c0117855665a28a43f9589635e94222

! common/autoconf/generated-configure.sh
! common/autoconf/toolchain_windows.m4

Changeset: 0e018191
Branch: master
Author:    Alexander Scherbatiy <alexsch at openjdk.org>
Date:      2023-04-20 12:42:38 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0e018191eb40beedfd8bdf70e6f1854e733dcb17

8282345: handle latest VS2022 in abstract_vm_version

Reviewed-by: sgehwolf
Backport-of: 1d9108f4f7d07e1be916bd0595ff4262c4e835c5

! hotspot/src/share/vm/runtime/vm_version.cpp

Changeset: 7878655e
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-04-20 20:52:18 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/7878655eb64403ba7e84d1afe80cd8c00459535e

Merge

! jdk/src/share/classes/sun/security/ssl/SSLSocketImpl.java
! jdk/src/share/classes/sun/security/ssl/SSLSocketImpl.java

Changeset: 3147b1ba
Branch: master
Author:    Joshua Zhu <jzhu at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-04-25 19:51:50 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3147b1bafe12326a97269655de46f066931f3ee4

8305165: [8u] ServiceThread::nmethods_do is not called to keep nmethods from being zombied while in the queue

Reviewed-by: phh

! hotspot/src/share/vm/runtime/thread.hpp

Changeset: e55aa4f7
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 20:13:19 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/e55aa4f73f133627d05368ac52dd7e8a40c0f554

Merge jdk8u382-b01

Added tag jdk8u382-b01 for changeset 3147b1bafe1

! .jcheck/conf
! THIRD_PARTY_README
! hotspot/src/share/vm/runtime/thread.hpp
! hotspot/test/gc/metaspace/TestMetaspacePerfCounters.java
! .jcheck/conf
! THIRD_PARTY_README
! hotspot/src/share/vm/runtime/thread.hpp
! hotspot/test/gc/metaspace/TestMetaspacePerfCounters.java


From andrew at openjdk.org  Mon Jun 16 22:46:05 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 22:46:05 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u382-b01 for changeset
 3147b1ba
Message-ID: <bd02a0e8-a49d-454e-ad24-07d3132ff5a3@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-04-29 21:04:03 +0000

Added tag jdk8u382-b01 for changeset 3147b1bafe1
Changeset: 3147b1ba
Author:    Joshua Zhu <jzhu at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-04-25 19:51:50 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3147b1bafe12326a97269655de46f066931f3ee4


From andrew at openjdk.org  Mon Jun 16 22:46:18 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 22:46:18 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u382-b01 for
 changeset e55aa4f7
Message-ID: <85da559f-709a-455a-90c6-39476e0964dd@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 22:44:04 +0000

Added tag shenandoah8u382-b01 for changeset e55aa4f73f1
Changeset: e55aa4f7
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-16 20:13:19 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/e55aa4f73f133627d05368ac52dd7e8a40c0f554


From andrew at openjdk.org  Mon Jun 16 22:47:08 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Mon, 16 Jun 2025 22:47:08 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <8QGJ4uHncrOw8kiROQLJR-eHoJSjOxn8jXU22GqoMzg=.78399e84-639c-46b9-a82c-1aaaeecf3a9a@github.com>
References: <8QGJ4uHncrOw8kiROQLJR-eHoJSjOxn8jXU22GqoMzg=.78399e84-639c-46b9-a82c-1aaaeecf3a9a@github.com>
Message-ID: <RpACp9_rluegE7u2_IL-x98iU7ReSaidrdOW2PETPjA=.a641cee8-87f8-4f01-9953-9fc811d4a641@github.com>

> Merge jdk8u382-b01
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/47/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/47/files/e55aa4f7..e55aa4f7

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=47&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=47&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/47.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/47/head:pull/47

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/47

From iris at openjdk.org  Mon Jun 16 22:47:08 2025
From: iris at openjdk.org (Iris Clark)
Date: Mon, 16 Jun 2025 22:47:08 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <8QGJ4uHncrOw8kiROQLJR-eHoJSjOxn8jXU22GqoMzg=.78399e84-639c-46b9-a82c-1aaaeecf3a9a@github.com>
References: <8QGJ4uHncrOw8kiROQLJR-eHoJSjOxn8jXU22GqoMzg=.78399e84-639c-46b9-a82c-1aaaeecf3a9a@github.com>
Message-ID: <6Hkbr4wGWND6LeHE8She0ky3OU1IYpAIuu2CDh5Z5OY=.2c76f8ed-d3a6-4f8d-8c07-32d064232808@github.com>

On Mon, 16 Jun 2025 21:45:54 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u382-b01
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/47

From dlong at openjdk.org  Mon Jun 16 23:34:43 2025
From: dlong at openjdk.org (Dean Long)
Date: Mon, 16 Jun 2025 23:34:43 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v5]
In-Reply-To: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
Message-ID: <ZN6kFFf-mJIH6ATSurRl3RmKBp7MUytFmJJRMvdEag4=.92f1c003-6de3-47cb-9d97-cb75f5d9b348@github.com>

> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
> 
> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
> 
> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
> 
> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
> 
> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.

Dean Long has updated the pull request incrementally with one additional commit since the last revision:

  s390 fix courtesy of Amit Kumar

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25764/files
  - new: https://git.openjdk.org/jdk/pull/25764/files/c1ebde09..a7d784b2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25764&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25764&range=03-04

  Stats: 2 lines in 2 files changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/25764.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25764/head:pull/25764

PR: https://git.openjdk.org/jdk/pull/25764

From dlong at openjdk.org  Mon Jun 16 23:34:43 2025
From: dlong at openjdk.org (Dean Long)
Date: Mon, 16 Jun 2025 23:34:43 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <a6qUUAt1FkBiLSeMP3t79yKOPDge6Zv5Z_pLF0sD_IU=.e120976d-ac33-44ca-92be-289f1bce8fed@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
 <TIjZO_0VNfCRPgMPKQxrsKoYQ1sUMqC85VMA9dZAvWk=.211ee6de-1b89-4aeb-93d8-cb41e13cc011@github.com>
 <a6qUUAt1FkBiLSeMP3t79yKOPDge6Zv5Z_pLF0sD_IU=.e120976d-ac33-44ca-92be-289f1bce8fed@github.com>
Message-ID: <Bluq4RaeKqEQJqYp4iVrX3AjaUQ9T1yQqmQx7iYw9A8=.596712ac-1525-4428-b80c-bb10098e26dd@github.com>

On Mon, 16 Jun 2025 15:04:23 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

>> Just FYI, s390 build is broken with this change: 
>> 
>> 
>> #
>> # A fatal error has been detected by the Java Runtime Environment:
>> #
>> #  Internal Error (/home/amit/jdk/src/hotspot/share/gc/shared/barrierSetNMethod.cpp:196), pid=1779086, tid=1779117
>> #  assert(!nm->is_osr_method() || may_enter) failed: OSR nmethods should always be entrant after migration
>> #
>> # JRE version: OpenJDK Runtime Environment (26.0) (fastdebug build 26-internal-adhoc.amit.jdk)
>> # Java VM: OpenJDK 64-Bit Server VM (fastdebug 26-internal-adhoc.amit.jdk, mixed mode, tiered, compressed oops, compressed class ptrs, g1 gc, linux-s390x)
>> # Problematic frame:
>> # V  [libjvm.so+0x40b196]  BarrierSetNMethod::nmethod_stub_entry_barrier(unsigned char**)+0x15e
>> #
>> # Core dump will be written. Default location: Core dumps may be processed with "/lib/systemd/systemd-coredump %P %u %g %s %t 9223372036854775808 %h %d" (or dumping to /home/amit/jdk/make/core.1779086)
>> #
>> # If you would like to submit a bug report, please visit:
>> #   https://bugreport.java.com/bugreport/crash.jsp
>> #
>> 
>> 
>> stack trace: 
>> 
>> Stack: [0x000003ff9e580000,0x000003ff9e680000],  sp=0x000003ff9e67b068,  free space=1004k
>> Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
>> V  [libjvm.so+0x40b196]  BarrierSetNMethod::nmethod_stub_entry_barrier(unsigned char**)+0x15e  (barrierSetNMethod.cpp:196)
>> v  ~StubRoutines::method_entry_barrier 0x000003ff9050cd18
>> J 282% c2 sun.nio.fs.UnixPath.initOffsets()V java.base (189 bytes) @ 0x000003ff90c4f0c8 [0x000003ff90c4f080+0x0000000000000048]
>> j  sun.nio.fs.UnixPath.getFileName()Lsun/nio/fs/UnixPath;+1 java.base
>> j  sun.nio.fs.UnixFileSystemProvider.isHidden(Ljava/nio/file/Path;)Z+6 java.base
>> j  java.nio.file.Files.isHidden(Ljava/nio/file/Path;)Z+5 java.base
>> j  jdk.internal.module.ModulePath.isHidden(Ljava/nio/file/Path;)Z+1 java.base
>> j  jdk.internal.module.ModulePath.lambda$explodedPackages$0(Ljava/nio/file/Path;Ljava/nio/file/attribute/BasicFileAttributes;)Z+11 java.base
>> j  jdk.internal.module.ModulePath$$Lambda+0x00000000a105cbe0.test(Ljava/lang/Object;Ljava/lang/Object;)Z+12 java.base
>> j  java.nio.file.Files.lambda$find$0(Ljava/util/function/BiPredicate;Ljava/nio/file/FileTreeWalker$Event;)Z+9 java.base
>> j  java.nio.file.Files$$Lambda+0x00000000a10646c0.test(Ljava/lang/Object;)Z+8 java.base
>> ....
>
>> @offamitkumar: The problem is probably the initialization to -1: [`z_cfi(Z_R0_scratch, /* to be patched */ -1);`.](https://github.com/openjdk/jdk/blob/9d060574e5dbd13e634f00d749d0108ceff1fae8/src/hotspot/cpu/s390/gc/shared/barrierSetAssembler_s390.cpp#L183) Should be 0.
> 
> Thank you Martin for the suggestion. 
> 
> @dean-long would you please add this diff, fixing s390x build. I ran tier1 test with fastdebug, test are clean; 
> 
> 
> diff --git a/src/hotspot/cpu/s390/gc/shared/barrierSetAssembler_s390.cpp b/src/hotspot/cpu/s390/gc/shared/barrierSetAssembler_s390.cpp
> index e78906708af..2d663061aec 100644
> --- a/src/hotspot/cpu/s390/gc/shared/barrierSetAssembler_s390.cpp
> +++ b/src/hotspot/cpu/s390/gc/shared/barrierSetAssembler_s390.cpp
> @@ -180,7 +180,7 @@ void BarrierSetAssembler::nmethod_entry_barrier(MacroAssembler* masm) {
>      __ z_lg(Z_R0_scratch, in_bytes(bs_nm->thread_disarmed_guard_value_offset()), Z_thread); // 6 bytes
>  
>      // Compare to current patched value:
> -    __ z_cfi(Z_R0_scratch, /* to be patched */ -1); // 6 bytes (2 + 4 byte imm val)
> +    __ z_cfi(Z_R0_scratch, /* to be patched */ 0); // 6 bytes (2 + 4 byte imm val)
>  
>      // Conditional Jump
>      __ z_larl(Z_R14, (Assembler::instr_len((unsigned long)LARL_ZOPC) + Assembler::instr_len((unsigned long)BCR_ZOPC)) / 2); // 6 bytes
> diff --git a/src/hotspot/cpu/s390/stubGenerator_s390.cpp b/src/hotspot/cpu/s390/stubGenerator_s390.cpp
> index d3f6540a3ea..bb1d9ce6037 100644
> --- a/src/hotspot/cpu/s390/stubGenerator_s390.cpp
> +++ b/src/hotspot/cpu/s390/stubGenerator_s390.cpp
> @@ -3197,7 +3197,7 @@ class StubGenerator: public StubCodeGenerator {
>  
>      // VM-Call: BarrierSetNMethod::nmethod_stub_entry_barrier(address* return_address_ptr)
>      __ call_VM_leaf(CAST_FROM_FN_PTR(address, BarrierSetNMethod::nmethod_stub_entry_barrier));
> -    __ z_ltr(Z_R0_scratch, Z_RET);
> +    __ z_ltr(Z_RET, Z_RET);
>  
>      // VM-Call Epilogue
>      __ restore_volatile_regs(Z_SP, frame::z_abi_160_size, true, false);

Thanks @offamitkumar.  Could you explain the `__ z_ltr(Z_R0_scratch, Z_RET);` change, for my curiosity?  Thanks.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25764#issuecomment-2978470825

From dlong at openjdk.org  Mon Jun 16 23:39:08 2025
From: dlong at openjdk.org (Dean Long)
Date: Mon, 16 Jun 2025 23:39:08 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v6]
In-Reply-To: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
Message-ID: <T_ifzZkpru-qrX0_TKGUplo2NhJP_gK_WeZu5rHtFdg=.4a2f286e-c25e-48e6-84f7-a0225177af68@github.com>

> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
> 
> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
> 
> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
> 
> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
> 
> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.

Dean Long has updated the pull request incrementally with one additional commit since the last revision:

  arm32 fix

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25764/files
  - new: https://git.openjdk.org/jdk/pull/25764/files/a7d784b2..c98f3864

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25764&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25764&range=04-05

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/25764.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25764/head:pull/25764

PR: https://git.openjdk.org/jdk/pull/25764

From dlong at openjdk.org  Mon Jun 16 23:39:08 2025
From: dlong at openjdk.org (Dean Long)
Date: Mon, 16 Jun 2025 23:39:08 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <SHo1MHmCagVN25GGMf9dy8DXeRuxBxtN924XLZ-hUBw=.b40304b3-67e1-4cd6-b5d8-45f15aee0c94@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
 <SHo1MHmCagVN25GGMf9dy8DXeRuxBxtN924XLZ-hUBw=.b40304b3-67e1-4cd6-b5d8-45f15aee0c94@github.com>
Message-ID: <-qfpN8-hyWv-QosNnOUvLaZtsI0Kr1vXsTIV6Tqvd-w=.badb50d8-3f05-41d1-bc90-d5939d6b571f@github.com>

On Mon, 16 Jun 2025 13:56:30 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

> Seems like arm32 has the same issue:
> 
> https://github.com/openjdk/jdk/blob/9d060574e5dbd13e634f00d749d0108ceff1fae8/src/hotspot/cpu/arm/gc/shared/barrierSetAssembler_arm.cpp#L199
> 
> The init value shouldn't have the sticky bit set.

Thanks, I pushed a potential fix for that.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25764#issuecomment-2978476161

From dlong at openjdk.org  Mon Jun 16 23:45:57 2025
From: dlong at openjdk.org (Dean Long)
Date: Mon, 16 Jun 2025 23:45:57 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v7]
In-Reply-To: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
Message-ID: <k0ooW4tQFu9rv5NHyktrIii96Uv8r-Frics2nUnxnSg=.8db6f73e-60da-4374-864e-14a691156f58@github.com>

> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
> 
> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
> 
> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
> 
> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
> 
> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.

Dean Long has updated the pull request incrementally with one additional commit since the last revision:

  rename arm_with to guard_with

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25764/files
  - new: https://git.openjdk.org/jdk/pull/25764/files/c98f3864..3ac6dec0

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25764&range=06
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25764&range=05-06

  Stats: 9 lines in 6 files changed: 0 ins; 0 del; 9 mod
  Patch: https://git.openjdk.org/jdk/pull/25764.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25764/head:pull/25764

PR: https://git.openjdk.org/jdk/pull/25764

From dlong at openjdk.org  Mon Jun 16 23:45:57 2025
From: dlong at openjdk.org (Dean Long)
Date: Mon, 16 Jun 2025 23:45:57 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <ENAa5ub1BOWT5p9ag_BQ4j8NYmjODwJKwGoobXt4j0Y=.b597446f-e654-4083-bf6a-29c3eee0560c@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
 <ENAa5ub1BOWT5p9ag_BQ4j8NYmjODwJKwGoobXt4j0Y=.b597446f-e654-4083-bf6a-29c3eee0560c@github.com>
Message-ID: <Rs8iKPDKHrHqN4ULCnUCcdmwuIWxalw8lXn-YhWHW9c=.bafc9947-1c19-4688-8478-44ffe831e2af@github.com>

On Mon, 16 Jun 2025 00:48:40 GMT, Erik ?sterlund <eosterlund at openjdk.org> wrote:

>> Dean Long has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   remove is_sigill_not_entrant
>
> src/hotspot/share/gc/z/zBarrierSetNMethod.cpp line 109:
> 
>> 107: }
>> 108: 
>> 109: void ZBarrierSetNMethod::arm_with(nmethod* nm, int value) {
> 
> I don't usually comment on names, but could we call this guard_with instead? We tried to stop saying "arm" about things used also for disarming and we have (hopefully) been consistent about calling that "guard" instead.

Good suggestion.  Fixed.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/25764#discussion_r2151070290

From dlong at openjdk.org  Tue Jun 17 00:05:30 2025
From: dlong at openjdk.org (Dean Long)
Date: Tue, 17 Jun 2025 00:05:30 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <ENAa5ub1BOWT5p9ag_BQ4j8NYmjODwJKwGoobXt4j0Y=.b597446f-e654-4083-bf6a-29c3eee0560c@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
 <ENAa5ub1BOWT5p9ag_BQ4j8NYmjODwJKwGoobXt4j0Y=.b597446f-e654-4083-bf6a-29c3eee0560c@github.com>
Message-ID: <fpMEJ1QMx9Gwi2hColGPHea1w7wWdBmtZ5gVEissNHs=.4da2e5ad-71e5-4ae5-9dc3-5ebf8bdd0669@github.com>

On Mon, 16 Jun 2025 00:54:48 GMT, Erik ?sterlund <eosterlund at openjdk.org> wrote:

>> Dean Long has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   remove is_sigill_not_entrant
>
> src/hotspot/share/gc/z/zBarrierSetNMethod.cpp line 114:
> 
>> 112:   // Preserve the sticky bit
>> 113:   if (is_not_entrant(nm)) {
>> 114:     value |= not_entrant;
> 
> Is it possible to have a race where another thread sets an nmethod to not entrant and the thread calling this making the nmethod entry barrier not entrant?
> 
> If this was called to disarm a method and then enter it, it seems a bit sneaky in that case that we pass the nmethod entry barrier even though we under the lock see that it is not entrant. Probably okay but still feels like it might be more robust if the thread setting an nmethod to not entrant is always the one that arms the nmethod entry barrier.

If I understand your concern correctly, there is no race.  The only caller of BarrierSetNMethod::make_not_entrant() is nmethod::make_not_entrant(), and it is done inside a NMethodState_lock critical section.  After a call to nmethod::make_not_entrant(), the nmethod entry barrier is armed and stays that way.
And by design, a disarm only disarms at the inner nmethod_entry_barrier level, not the outer nmethod_stub_entry_barrier level.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/25764#discussion_r2151084557

From dlong at openjdk.org  Tue Jun 17 00:13:30 2025
From: dlong at openjdk.org (Dean Long)
Date: Tue, 17 Jun 2025 00:13:30 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <0-Re4fyQGaSyOl-bYm1h9LT5a0TKKrgJCHquooXOIkQ=.d6044248-6188-4705-b564-90fa3d2d7762@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
 <0-Re4fyQGaSyOl-bYm1h9LT5a0TKKrgJCHquooXOIkQ=.d6044248-6188-4705-b564-90fa3d2d7762@github.com>
Message-ID: <UoVXZCNouvAqNqc77bktWvKke8XV6HXXgWt4NmoFbHg=.d74782fc-763f-45a3-a1bc-57d73e419ebb@github.com>

On Sat, 14 Jun 2025 09:23:33 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

> Tests look good on our side. I'm only a bit concerned that the lock may become a bottleneck when many Java threads need to patch all nmethods. Especially with ZGC which does that more often. I think we should check performance.

For ZGC I am using a per-nmethod lock:
  ZLocker<ZReentrantLock> locker(ZNMethod::lock_for_nmethod(nm));

I don't know what benchmarks to run to check the performance for functions like Deoptimization::deoptimize_all_marked, so I welcome any help with this.

One possible optimization that might help is skipping the lock if the make_not_entrant call is done during a safepoint.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25764#issuecomment-2978525224

From ysr at openjdk.org  Tue Jun 17 00:15:27 2025
From: ysr at openjdk.org (Y. Srinivas Ramakrishna)
Date: Tue, 17 Jun 2025 00:15:27 GMT
Subject: RFR: 8357976: GenShen crash in swap_card_tables: Should be clean
 [v3]
In-Reply-To: <dpo3e1f5q1xe3MxkRyGoYs26jykQl7qg8YYtuUTl8oA=.0ba67ed6-ba73-4b14-b949-aae6003de160@github.com>
References: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
 <dpo3e1f5q1xe3MxkRyGoYs26jykQl7qg8YYtuUTl8oA=.0ba67ed6-ba73-4b14-b949-aae6003de160@github.com>
Message-ID: <CjZ6dIlFiEB6B2CPYf6-WdhawkxODxLh_WhGT_QlkE0=.c09a4c8b-28e6-4574-9592-01ab2b063d60@github.com>

On Thu, 12 Jun 2025 22:10:12 GMT, William Kemper <wkemper at openjdk.org> wrote:

>> Degenerated cycles must also clean the `read` card table before swapping it with the `write` card table.
>
> William Kemper has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Revert "Consolidate read table cleaning"
>   
>   This reverts commit 9552021cbeec699e7b04db81fa68819c23b7dab7.

Reviewed and approved; see previous comment.

?

@earthling-amzn : 

> Genshen does not clean the read table at the end of a concurrent cycle (we could do this, but we'd still need to do the same in a degenerated cycle).

Yes, and I am suggesting we do that to clean up and consolidate the cleaning along multiple paths into the same method that is invoked at an identical point in the Collector's state machine, irrespective of whether we arrived at that state via a concurrent collection or a degeneration.

> The complexity comes from swapping the card tables in a concurrent cycle. We must not let a subsequent degenerated cycle swap them a second time. The degenerated cycle can only clean the read table if there was no active concurrent cycle (lest it throw away critical remembered set data).

The swapping must happen at the start of the marking cycle. In similar fashion, the state of the Collector's state machine should indicate if the swap has already been done in this cycle or not. The specifics of wheher the swap was done by a degenerate or concurrent collection should then not matter?

> However, the degenerated cycle must also clear the mark bitmaps if the concurrent cycle degenerated during the root scan (the degenerated cycle will rescan the roots). Of course, we cannot clear the mark bitmaps if the concurrent cycle degenerated during the mark phase. So, for the degenerated cycle, clearing the mark bitmaps and cleaning the read table need to happen in two different cases and it doesn't work if they're combined into the same method (and I don't think adding a method parameter to sometimes clear the mark bitmap and sometimes the read table will make the code any easier to understand).

That's OK, they can be in two different methods, with the clearing of the marking bitmap done in one case and not in the other based on when the degeeration occurred. I think may be we don't have sufficiently refined Collector state machine at the moment which may be part of the problem here.

That having been said, I can understand that:

> The refactoring you suggest is not so simple, alas. 

In particular, if our eventual future plan is to do away with degeneration as we know it today, then the refactoring to achieve the clean up I suggest may be moot.

With that in mind, I am going to approve the changes in their current form as they look right if somewhat difficult to maintain and prove the correctness of. (The more refined state machine approach would likely make it easier, but will be moot once degeneration is eliminated in the future.)

-------------

Marked as reviewed by ysr (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25735#pullrequestreview-2933812072
PR Comment: https://git.openjdk.org/jdk/pull/25735#issuecomment-2978526794

From amitkumar at openjdk.org  Tue Jun 17 03:46:33 2025
From: amitkumar at openjdk.org (Amit Kumar)
Date: Tue, 17 Jun 2025 03:46:33 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <a6qUUAt1FkBiLSeMP3t79yKOPDge6Zv5Z_pLF0sD_IU=.e120976d-ac33-44ca-92be-289f1bce8fed@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
 <TIjZO_0VNfCRPgMPKQxrsKoYQ1sUMqC85VMA9dZAvWk=.211ee6de-1b89-4aeb-93d8-cb41e13cc011@github.com>
 <a6qUUAt1FkBiLSeMP3t79yKOPDge6Zv5Z_pLF0sD_IU=.e120976d-ac33-44ca-92be-289f1bce8fed@github.com>
Message-ID: <-0Y5IM8MHOmPZpTHRGKK5hnBLA5TyRV871YLJ1XnSAI=.027d1976-faf5-40f7-a7d0-fa05d6b986b4@github.com>

On Mon, 16 Jun 2025 15:04:23 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

>> Just FYI, s390 build is broken with this change: 
>> 
>> 
>> #
>> # A fatal error has been detected by the Java Runtime Environment:
>> #
>> #  Internal Error (/home/amit/jdk/src/hotspot/share/gc/shared/barrierSetNMethod.cpp:196), pid=1779086, tid=1779117
>> #  assert(!nm->is_osr_method() || may_enter) failed: OSR nmethods should always be entrant after migration
>> #
>> # JRE version: OpenJDK Runtime Environment (26.0) (fastdebug build 26-internal-adhoc.amit.jdk)
>> # Java VM: OpenJDK 64-Bit Server VM (fastdebug 26-internal-adhoc.amit.jdk, mixed mode, tiered, compressed oops, compressed class ptrs, g1 gc, linux-s390x)
>> # Problematic frame:
>> # V  [libjvm.so+0x40b196]  BarrierSetNMethod::nmethod_stub_entry_barrier(unsigned char**)+0x15e
>> #
>> # Core dump will be written. Default location: Core dumps may be processed with "/lib/systemd/systemd-coredump %P %u %g %s %t 9223372036854775808 %h %d" (or dumping to /home/amit/jdk/make/core.1779086)
>> #
>> # If you would like to submit a bug report, please visit:
>> #   https://bugreport.java.com/bugreport/crash.jsp
>> #
>> 
>> 
>> stack trace: 
>> 
>> Stack: [0x000003ff9e580000,0x000003ff9e680000],  sp=0x000003ff9e67b068,  free space=1004k
>> Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
>> V  [libjvm.so+0x40b196]  BarrierSetNMethod::nmethod_stub_entry_barrier(unsigned char**)+0x15e  (barrierSetNMethod.cpp:196)
>> v  ~StubRoutines::method_entry_barrier 0x000003ff9050cd18
>> J 282% c2 sun.nio.fs.UnixPath.initOffsets()V java.base (189 bytes) @ 0x000003ff90c4f0c8 [0x000003ff90c4f080+0x0000000000000048]
>> j  sun.nio.fs.UnixPath.getFileName()Lsun/nio/fs/UnixPath;+1 java.base
>> j  sun.nio.fs.UnixFileSystemProvider.isHidden(Ljava/nio/file/Path;)Z+6 java.base
>> j  java.nio.file.Files.isHidden(Ljava/nio/file/Path;)Z+5 java.base
>> j  jdk.internal.module.ModulePath.isHidden(Ljava/nio/file/Path;)Z+1 java.base
>> j  jdk.internal.module.ModulePath.lambda$explodedPackages$0(Ljava/nio/file/Path;Ljava/nio/file/attribute/BasicFileAttributes;)Z+11 java.base
>> j  jdk.internal.module.ModulePath$$Lambda+0x00000000a105cbe0.test(Ljava/lang/Object;Ljava/lang/Object;)Z+12 java.base
>> j  java.nio.file.Files.lambda$find$0(Ljava/util/function/BiPredicate;Ljava/nio/file/FileTreeWalker$Event;)Z+9 java.base
>> j  java.nio.file.Files$$Lambda+0x00000000a10646c0.test(Ljava/lang/Object;)Z+8 java.base
>> ....
>
>> @offamitkumar: The problem is probably the initialization to -1: [`z_cfi(Z_R0_scratch, /* to be patched */ -1);`.](https://github.com/openjdk/jdk/blob/9d060574e5dbd13e634f00d749d0108ceff1fae8/src/hotspot/cpu/s390/gc/shared/barrierSetAssembler_s390.cpp#L183) Should be 0.
> 
> Thank you Martin for the suggestion. 
> 
> @dean-long would you please add this diff, fixing s390x build. I ran tier1 test with fastdebug, test are clean; 
> 
> 
> diff --git a/src/hotspot/cpu/s390/gc/shared/barrierSetAssembler_s390.cpp b/src/hotspot/cpu/s390/gc/shared/barrierSetAssembler_s390.cpp
> index e78906708af..2d663061aec 100644
> --- a/src/hotspot/cpu/s390/gc/shared/barrierSetAssembler_s390.cpp
> +++ b/src/hotspot/cpu/s390/gc/shared/barrierSetAssembler_s390.cpp
> @@ -180,7 +180,7 @@ void BarrierSetAssembler::nmethod_entry_barrier(MacroAssembler* masm) {
>      __ z_lg(Z_R0_scratch, in_bytes(bs_nm->thread_disarmed_guard_value_offset()), Z_thread); // 6 bytes
>  
>      // Compare to current patched value:
> -    __ z_cfi(Z_R0_scratch, /* to be patched */ -1); // 6 bytes (2 + 4 byte imm val)
> +    __ z_cfi(Z_R0_scratch, /* to be patched */ 0); // 6 bytes (2 + 4 byte imm val)
>  
>      // Conditional Jump
>      __ z_larl(Z_R14, (Assembler::instr_len((unsigned long)LARL_ZOPC) + Assembler::instr_len((unsigned long)BCR_ZOPC)) / 2); // 6 bytes
> diff --git a/src/hotspot/cpu/s390/stubGenerator_s390.cpp b/src/hotspot/cpu/s390/stubGenerator_s390.cpp
> index d3f6540a3ea..bb1d9ce6037 100644
> --- a/src/hotspot/cpu/s390/stubGenerator_s390.cpp
> +++ b/src/hotspot/cpu/s390/stubGenerator_s390.cpp
> @@ -3197,7 +3197,7 @@ class StubGenerator: public StubCodeGenerator {
>  
>      // VM-Call: BarrierSetNMethod::nmethod_stub_entry_barrier(address* return_address_ptr)
>      __ call_VM_leaf(CAST_FROM_FN_PTR(address, BarrierSetNMethod::nmethod_stub_entry_barrier));
> -    __ z_ltr(Z_R0_scratch, Z_RET);
> +    __ z_ltr(Z_RET, Z_RET);
>  
>      // VM-Call Epilogue
>      __ restore_volatile_regs(Z_SP, frame::z_abi_160_size, true, false);

> Thanks @offamitkumar. Could you explain the `__ z_ltr(Z_R0_scratch, Z_RET);` change, for my curiosity? Thanks.

`ltr` instruction stands for "load and test" (32 bit). Initially we were loading the value from `Z_RET` to `Z_R0_scratch` and then it will be compared against 0. But in this case there is no requirement of loading the value in Z_R0, as it's not being used further. So we can load the value again in `Z_RET` and the compare it against 0. There is nothing wrong in previous solution, it's just killing Z_R0 for nothing.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25764#issuecomment-2978824615

From roland at openjdk.org  Tue Jun 17 07:52:16 2025
From: roland at openjdk.org (Roland Westrelin)
Date: Tue, 17 Jun 2025 07:52:16 GMT
Subject: [jdk25] RFR: 8358334: C2/Shenandoah: incorrect execution with Unsafe
Message-ID: <SO5bEwqowWRpXtIQvf8UEE6elTe9Ul2oCvu-3vIeLkY=.cdc47529-e936-4343-ad27-c536e2ed5337@github.com>

Hi all,

This pull request contains a backport of commit [1fcede05](https://github.com/openjdk/jdk/commit/1fcede053cca360c96606c1034b2a365a4fada82) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by Roland Westrelin on 12 Jun 2025 and was reviewed by William Kemper and Aleksey Shipilev.

Backport applies cleanly.

Thanks!

-------------

Commit messages:
 - Backport 1fcede053cca360c96606c1034b2a365a4fada82

Changes: https://git.openjdk.org/jdk/pull/25845/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25845&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8358334
  Stats: 153 lines in 3 files changed: 117 ins; 26 del; 10 mod
  Patch: https://git.openjdk.org/jdk/pull/25845.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25845/head:pull/25845

PR: https://git.openjdk.org/jdk/pull/25845

From thartmann at openjdk.org  Tue Jun 17 08:10:36 2025
From: thartmann at openjdk.org (Tobias Hartmann)
Date: Tue, 17 Jun 2025 08:10:36 GMT
Subject: [jdk25] RFR: 8358334: C2/Shenandoah: incorrect execution with
 Unsafe
In-Reply-To: <SO5bEwqowWRpXtIQvf8UEE6elTe9Ul2oCvu-3vIeLkY=.cdc47529-e936-4343-ad27-c536e2ed5337@github.com>
References: <SO5bEwqowWRpXtIQvf8UEE6elTe9Ul2oCvu-3vIeLkY=.cdc47529-e936-4343-ad27-c536e2ed5337@github.com>
Message-ID: <6UlV04v4D-z9ERdvYjIR2h-hXICqfmUWuGX9UN6dIT8=.c1328dc8-66f1-4499-9f92-70a6e5efc305@github.com>

On Tue, 17 Jun 2025 07:46:38 GMT, Roland Westrelin <roland at openjdk.org> wrote:

> Hi all,
> 
> This pull request contains a backport of commit [1fcede05](https://github.com/openjdk/jdk/commit/1fcede053cca360c96606c1034b2a365a4fada82) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Roland Westrelin on 12 Jun 2025 and was reviewed by William Kemper and Aleksey Shipilev.
> 
> Backport applies cleanly.
> 
> Thanks!

Looks good.

-------------

Marked as reviewed by thartmann (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25845#pullrequestreview-2934573108

From roland at openjdk.org  Tue Jun 17 08:10:36 2025
From: roland at openjdk.org (Roland Westrelin)
Date: Tue, 17 Jun 2025 08:10:36 GMT
Subject: [jdk25] RFR: 8358334: C2/Shenandoah: incorrect execution with
 Unsafe
In-Reply-To: <6UlV04v4D-z9ERdvYjIR2h-hXICqfmUWuGX9UN6dIT8=.c1328dc8-66f1-4499-9f92-70a6e5efc305@github.com>
References: <SO5bEwqowWRpXtIQvf8UEE6elTe9Ul2oCvu-3vIeLkY=.cdc47529-e936-4343-ad27-c536e2ed5337@github.com>
 <6UlV04v4D-z9ERdvYjIR2h-hXICqfmUWuGX9UN6dIT8=.c1328dc8-66f1-4499-9f92-70a6e5efc305@github.com>
Message-ID: <dXJfLCfynMxliIlr5pUXPHsBeU7_ap36XlqxiwJsREk=.442806a8-63b4-4511-a6fd-4446f3e5f820@github.com>

On Tue, 17 Jun 2025 08:04:55 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

>> Hi all,
>> 
>> This pull request contains a backport of commit [1fcede05](https://github.com/openjdk/jdk/commit/1fcede053cca360c96606c1034b2a365a4fada82) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
>> 
>> The commit being backported was authored by Roland Westrelin on 12 Jun 2025 and was reviewed by William Kemper and Aleksey Shipilev.
>> 
>> Backport applies cleanly.
>> 
>> Thanks!
>
> Looks good.

@TobiHartmann thanks for the review.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25845#issuecomment-2979354555

From roland at openjdk.org  Tue Jun 17 08:10:37 2025
From: roland at openjdk.org (Roland Westrelin)
Date: Tue, 17 Jun 2025 08:10:37 GMT
Subject: [jdk25] Integrated: 8358334: C2/Shenandoah: incorrect execution with
 Unsafe
In-Reply-To: <SO5bEwqowWRpXtIQvf8UEE6elTe9Ul2oCvu-3vIeLkY=.cdc47529-e936-4343-ad27-c536e2ed5337@github.com>
References: <SO5bEwqowWRpXtIQvf8UEE6elTe9Ul2oCvu-3vIeLkY=.cdc47529-e936-4343-ad27-c536e2ed5337@github.com>
Message-ID: <99u6nre3LDFGl1DSuXcnu0e17tg6WZmkZGhM5eB504c=.1db042da-6ec6-4726-a0ef-502e7716bc11@github.com>

On Tue, 17 Jun 2025 07:46:38 GMT, Roland Westrelin <roland at openjdk.org> wrote:

> Hi all,
> 
> This pull request contains a backport of commit [1fcede05](https://github.com/openjdk/jdk/commit/1fcede053cca360c96606c1034b2a365a4fada82) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Roland Westrelin on 12 Jun 2025 and was reviewed by William Kemper and Aleksey Shipilev.
> 
> Backport applies cleanly.
> 
> Thanks!

This pull request has now been integrated.

Changeset: 46cfc1e1
Author:    Roland Westrelin <roland at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/46cfc1e1940ff6b91c4f0cb0a9161fd0aef37c38
Stats:     153 lines in 3 files changed: 117 ins; 26 del; 10 mod

8358334: C2/Shenandoah: incorrect execution with Unsafe

Reviewed-by: thartmann
Backport-of: 1fcede053cca360c96606c1034b2a365a4fada82

-------------

PR: https://git.openjdk.org/jdk/pull/25845

From sroy at openjdk.org  Tue Jun 17 08:14:47 2025
From: sroy at openjdk.org (Suchismith Roy)
Date: Tue, 17 Jun 2025 08:14:47 GMT
Subject: RFR: JDK-8349077 : Rename GenerationCounters::update_all [v3]
In-Reply-To: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
References: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
Message-ID: <EGGN6OK2qYZDyxnbli5JzPnQZS7Pp4kxxk6RARdK4RY=.0c15fe00-ee38-4e74-9d1c-6813a0e8e57b@github.com>

> JBS Issue : [JDK-8349077](https://bugs.openjdk.org/browse/JDK-8349077)
> 
> we found the method names update_all of the class GenerationCounters and its subclasses are not so good. It is better to rename it to something like update_capacity (such as ZGenerationCounters::update_capacity).
> 
> 
> 
> Update_capacity exists, since update_all updates the size and used , I found update_memory_state as a better name for this method.

Suchismith Roy has updated the pull request incrementally with two additional commits since the last revision:

 - update capacity only for Generation counter
 - Revert "update_capacity exists"
   
   This reverts commit cf2d66d598d90f1343d1ad7a4f30607c3374a0f8.

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25833/files
  - new: https://git.openjdk.org/jdk/pull/25833/files/419f3d5f..59839a66

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25833&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25833&range=01-02

  Stats: 42 lines in 15 files changed: 0 ins; 0 del; 42 mod
  Patch: https://git.openjdk.org/jdk/pull/25833.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25833/head:pull/25833

PR: https://git.openjdk.org/jdk/pull/25833

From sroy at openjdk.org  Tue Jun 17 08:28:09 2025
From: sroy at openjdk.org (Suchismith Roy)
Date: Tue, 17 Jun 2025 08:28:09 GMT
Subject: RFR: JDK-8349077 : Rename GenerationCounters::update_all [v4]
In-Reply-To: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
References: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
Message-ID: <Ouiw3RBddqljuvERyw-N8mtQPHmmHTB4Nk9fqgPuj_Q=.dadc679e-2f95-4f09-9589-6c2440a00735@github.com>

> JBS Issue : [JDK-8349077](https://bugs.openjdk.org/browse/JDK-8349077)
> 
> we found the method names update_all of the class GenerationCounters and its subclasses are not so good. It is better to rename it to something like update_capacity (such as ZGenerationCounters::update_capacity).
> 
> 
> 
> Update_capacity exists, since update_all updates the size and used , I found update_memory_state as a better name for this method.

Suchismith Roy has updated the pull request incrementally with one additional commit since the last revision:

  psOldGen

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25833/files
  - new: https://git.openjdk.org/jdk/pull/25833/files/59839a66..88c41602

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25833&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25833&range=02-03

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/25833.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25833/head:pull/25833

PR: https://git.openjdk.org/jdk/pull/25833

From ayang at openjdk.org  Tue Jun 17 08:28:09 2025
From: ayang at openjdk.org (Albert Mingkun Yang)
Date: Tue, 17 Jun 2025 08:28:09 GMT
Subject: RFR: JDK-8349077 : Rename GenerationCounters::update_all [v3]
In-Reply-To: <EGGN6OK2qYZDyxnbli5JzPnQZS7Pp4kxxk6RARdK4RY=.0c15fe00-ee38-4e74-9d1c-6813a0e8e57b@github.com>
References: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
 <EGGN6OK2qYZDyxnbli5JzPnQZS7Pp4kxxk6RARdK4RY=.0c15fe00-ee38-4e74-9d1c-6813a0e8e57b@github.com>
Message-ID: <nybLTpuZlfjZf0XUi9MTIJYCfbGrBmfRrS-Lg6ezhIc=.5cd475ea-1863-40d7-9977-b678f0c32fed@github.com>

On Tue, 17 Jun 2025 08:14:47 GMT, Suchismith Roy <sroy at openjdk.org> wrote:

>> JBS Issue : [JDK-8349077](https://bugs.openjdk.org/browse/JDK-8349077)
>> 
>> we found the method names update_all of the class GenerationCounters and its subclasses are not so good. It is better to rename it to something like update_capacity (such as ZGenerationCounters::update_capacity).
>> 
>> 
>> 
>> Update_capacity exists, since update_all updates the size and used , I found update_memory_state as a better name for this method.
>
> Suchismith Roy has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - update capacity only for Generation counter
>  - Revert "update_capacity exists"
>    
>    This reverts commit cf2d66d598d90f1343d1ad7a4f30607c3374a0f8.

Thanks for the revision.

I believe the one in `ZGenerationCounters` can be removed now.


  void update_capacity(size_t capacity) {
    update_all(capacity);
  }

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25833#issuecomment-2979417249

From sroy at openjdk.org  Tue Jun 17 08:34:47 2025
From: sroy at openjdk.org (Suchismith Roy)
Date: Tue, 17 Jun 2025 08:34:47 GMT
Subject: RFR: JDK-8349077 : Rename GenerationCounters::update_all [v5]
In-Reply-To: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
References: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
Message-ID: <7pVHTK4sJLrs6GITxmgux8MmQ8CRuwky6t-1d1HRrTU=.7fdd3896-158b-4c19-9180-3a20cc3d1c96@github.com>

> JBS Issue : [JDK-8349077](https://bugs.openjdk.org/browse/JDK-8349077)
> 
> we found the method names update_all of the class GenerationCounters and its subclasses are not so good. It is better to rename it to something like update_capacity (such as ZGenerationCounters::update_capacity).
> 
> 
> 
> Update_capacity exists, since update_all updates the size and used , I found update_memory_state as a better name for this method.

Suchismith Roy has updated the pull request incrementally with one additional commit since the last revision:

  update zgenerationcounter

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25833/files
  - new: https://git.openjdk.org/jdk/pull/25833/files/88c41602..bd26817c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25833&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25833&range=03-04

  Stats: 3 lines in 1 file changed: 0 ins; 3 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/25833.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25833/head:pull/25833

PR: https://git.openjdk.org/jdk/pull/25833

From mdoerr at openjdk.org  Tue Jun 17 12:52:34 2025
From: mdoerr at openjdk.org (Martin Doerr)
Date: Tue, 17 Jun 2025 12:52:34 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <-qfpN8-hyWv-QosNnOUvLaZtsI0Kr1vXsTIV6Tqvd-w=.badb50d8-3f05-41d1-bc90-d5939d6b571f@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
 <SHo1MHmCagVN25GGMf9dy8DXeRuxBxtN924XLZ-hUBw=.b40304b3-67e1-4cd6-b5d8-45f15aee0c94@github.com>
 <-qfpN8-hyWv-QosNnOUvLaZtsI0Kr1vXsTIV6Tqvd-w=.badb50d8-3f05-41d1-bc90-d5939d6b571f@github.com>
Message-ID: <NXEl1i8ECESz1PQoLstGmaOkzffoX_17X6Bsjqz7WGA=.1f7458a4-43b1-40c8-bade-895ddd7ded1e@github.com>

On Mon, 16 Jun 2025 23:35:43 GMT, Dean Long <dlong at openjdk.org> wrote:

> > Seems like arm32 has the same issue:
> > https://github.com/openjdk/jdk/blob/9d060574e5dbd13e634f00d749d0108ceff1fae8/src/hotspot/cpu/arm/gc/shared/barrierSetAssembler_arm.cpp#L199
> > 
> > The init value shouldn't have the sticky bit set.
> 
> Thanks, I pushed a potential fix for that.

Unfortunately, 0xBEAFDEAD also has the MSB set. Shouldn't we better use 0 like on all other platforms?

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25764#issuecomment-2980261201

From sroy at openjdk.org  Tue Jun 17 14:59:01 2025
From: sroy at openjdk.org (Suchismith Roy)
Date: Tue, 17 Jun 2025 14:59:01 GMT
Subject: RFR: JDK-8349077 : Rename GenerationCounters::update_all [v6]
In-Reply-To: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
References: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
Message-ID: <ZwsxXACvAszjzn0JU6I-aA2rx62DD_o-zViqGyDWbKU=.f701f11b-4767-49ad-a43d-d2cf4a918963@github.com>

> JBS Issue : [JDK-8349077](https://bugs.openjdk.org/browse/JDK-8349077)
> 
> we found the method names update_all of the class GenerationCounters and its subclasses are not so good. It is better to rename it to something like update_capacity (such as ZGenerationCounters::update_capacity).
> 
> 
> 
> Update_capacity exists, since update_all updates the size and used , I found update_memory_state as a better name for this method.

Suchismith Roy has updated the pull request incrementally with one additional commit since the last revision:

  g1Monitoring

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25833/files
  - new: https://git.openjdk.org/jdk/pull/25833/files/bd26817c..7bb69a1d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25833&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25833&range=04-05

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/25833.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25833/head:pull/25833

PR: https://git.openjdk.org/jdk/pull/25833

From andrew at openjdk.org  Tue Jun 17 16:36:51 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 16:36:51 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <wjNQSMsY7j_cLpyuJdnHsgDERW_OeZCeAKDxYF3ztNA=.74009d7e-ddbf-44d3-9ba8-2cb6dd171825@github.com>

Merge jdk8u382-b02

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

Commit messages:
 - Merge jdk8u382-b02
 - 8307531: [aarch64] JDK8 single-step debugging is extremely slow
 - 8303028: Update system property for Java SE specification maintenance version
 - 8305681: Allow additional characters for GB18030-2022 (Level 2) support
 - 8301400: Allow additional characters for GB18030-2022 support

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/48/files
  Stats: 135 lines in 10 files changed: 58 ins; 14 del; 63 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/48.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/48/head:pull/48

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/48

From andrew at openjdk.org  Tue Jun 17 16:45:10 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 16:45:10 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 5 new changesets
Message-ID: <81aafa53-9b34-40ca-8801-0361f08ada7b@openjdk.org>

Changeset: 9740c243
Branch: master
Author:    Naoto Sato <naoto at openjdk.org>
Date:      2023-05-10 17:02:09 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/9740c2434fa39a6fac800e87160af659f718362c

8301400: Allow additional characters for GB18030-2022 support

Co-authored-by: Justin Lu <jlu at openjdk.org>
Reviewed-by: lancea, iris, rriggs
Backport-of: a039f39ee8486e990a4b4341c9e07fc49d3dac2d

! jdk/make/data/characterdata/CharacterData00.java.template
! jdk/make/data/unicodedata/UnicodeData.txt
! jdk/src/share/classes/java/lang/Character.java
! jdk/test/java/lang/Character/Scripts.txt
! jdk/test/java/lang/Character/TestIsJavaIdentifierMethods.java

Changeset: 3d9e8d05
Branch: master
Author:    Naoto Sato <naoto at openjdk.org>
Date:      2023-05-10 17:15:52 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3d9e8d05e053613afea1f4493121b5975a37ab2a

8305681: Allow additional characters for GB18030-2022 (Level 2) support

Co-authored-by: Justin Lu <jlu at openjdk.org>
Reviewed-by: lancea, iris, rriggs
Backport-of: b08cddec8625424b1292051088513a60606ef1e9

! jdk/make/data/characterdata/CharacterData02.java.template
! jdk/make/data/unicodedata/UnicodeData.txt
! jdk/src/share/classes/java/lang/Character.java
! jdk/test/java/lang/Character/CheckScript.java
! jdk/test/java/lang/Character/Scripts.txt
! jdk/test/java/lang/Character/TestIsJavaIdentifierMethods.java

Changeset: 4328fec3
Branch: master
Author:    Justin Lu <jlu at openjdk.org>
Committer: Naoto Sato <naoto at openjdk.org>
Date:      2023-05-11 16:30:40 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/4328fec3a75657f9923a9cfabe8eb6e1081a510d

8303028: Update system property for Java SE specification maintenance version

Reviewed-by: rriggs, lancea, naoto, iris
Backport-of: 9eb797dc6ac09f250b4e308abd43bffa6529c534

! jdk/src/share/native/java/lang/System.c

Changeset: 3e69b49f
Branch: master
Author:    Sergey Nazarkin <snazarki at openjdk.org>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2023-05-12 10:32:15 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3e69b49f71e1c00a4761a9e63440cb7af1216389

8307531: [aarch64] JDK8 single-step debugging is extremely slow

Reviewed-by: aph

! hotspot/src/share/vm/prims/jvmtiExport.cpp
! hotspot/src/share/vm/prims/jvmtiThreadState.cpp

Changeset: c498dd52
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-17 12:41:11 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c498dd5204469e1b7d3ce078c36873226825e61a

Merge jdk8u382-b02

Added tag jdk8u382-b02 for changeset 3e69b49f71e



From andrew at openjdk.org  Tue Jun 17 16:45:19 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 16:45:19 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u382-b02 for changeset
 3e69b49f
Message-ID: <772e9825-6b3f-4b2e-ab67-e1e6fe5476aa@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-05-16 18:31:25 +0000

Added tag jdk8u382-b02 for changeset 3e69b49f71e
Changeset: 3e69b49f
Author:    Sergey Nazarkin <snazarki at openjdk.org>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2023-05-12 10:32:15 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3e69b49f71e1c00a4761a9e63440cb7af1216389


From andrew at openjdk.org  Tue Jun 17 16:45:22 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 16:45:22 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u382-b02 for
 changeset c498dd52
Message-ID: <b8aef8c7-55e0-4f98-ab50-bffa62a08bbb@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-17 16:51:18 +0000

Added tag shenandoah8u382-b02 for changeset c498dd52044
Changeset: c498dd52
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-17 12:41:11 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c498dd5204469e1b7d3ce078c36873226825e61a


From andrew at openjdk.org  Tue Jun 17 16:45:26 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 16:45:26 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <wjNQSMsY7j_cLpyuJdnHsgDERW_OeZCeAKDxYF3ztNA=.74009d7e-ddbf-44d3-9ba8-2cb6dd171825@github.com>
References: <wjNQSMsY7j_cLpyuJdnHsgDERW_OeZCeAKDxYF3ztNA=.74009d7e-ddbf-44d3-9ba8-2cb6dd171825@github.com>
Message-ID: <CTvKRHFAhaHYAzsyfPPOM-ZtjCCJLc5jvZQ0hFDxabA=.f631ba98-1fff-485d-837f-8f09176af69f@github.com>

> Merge jdk8u382-b02
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/48/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/48/files/c498dd52..c498dd52

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=48&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=48&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/48.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/48/head:pull/48

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/48

From iris at openjdk.org  Tue Jun 17 16:45:26 2025
From: iris at openjdk.org (Iris Clark)
Date: Tue, 17 Jun 2025 16:45:26 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <wjNQSMsY7j_cLpyuJdnHsgDERW_OeZCeAKDxYF3ztNA=.74009d7e-ddbf-44d3-9ba8-2cb6dd171825@github.com>
References: <wjNQSMsY7j_cLpyuJdnHsgDERW_OeZCeAKDxYF3ztNA=.74009d7e-ddbf-44d3-9ba8-2cb6dd171825@github.com>
Message-ID: <SRCTQLIH0Lf7UZWMoESCvJJGGDm-LqQr9ZfEVoADgQY=.d370a17b-d507-470c-92ff-4df90f074504@github.com>

On Tue, 17 Jun 2025 16:32:59 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u382-b02
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/48

From andrew at openjdk.org  Tue Jun 17 17:21:52 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 17:21:52 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <yt-p6TBufEQ5G-YFbfySjqIxy3ABg45uPDAiiJAQ8GY=.14119c78-d4b1-458f-9015-79af6d97fd2b@github.com>

Merge jdk8u382-b03

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

Commit messages:
 - Merge jdk8u382-b03
 - 8307134: Add GTS root CAs
 - 8304760: Add 2 Microsoft TLS roots
 - 8298108: Add a regression test for JDK-8297684
 - 8305975: Add TWCA Global Root CA
 - 8072678: Wrong exception messages in java.awt.color.ICC_ColorSpace
 - 8307310: Backport the tests for JDK-8058969 and JDK-8039271 to the OpenJDK8
 - 8268558: [TESTBUG] Case 2 in TestP11KeyFactoryGetRSAKeySpec is skipped
 - 8285515: (dc) DatagramChannel.disconnect fails with "Invalid argument" on macOS 12.4

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/49/files
  Stats: 1782 lines in 21 files changed: 1768 ins; 3 del; 11 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/49.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/49/head:pull/49

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/49

From andrew at openjdk.org  Tue Jun 17 17:31:36 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 17:31:36 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 9 new changesets
Message-ID: <629b632b-0792-4780-b33a-1bd341ef92c9@openjdk.org>

Changeset: c7c080ad
Branch: master
Author:    Ben Taylor <btaylor at openjdk.org>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2023-05-24 18:10:56 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c7c080ad9e0ec05ca09501f90ff4223183653534

8285515: (dc) DatagramChannel.disconnect fails with "Invalid argument" on macOS 12.4

Reviewed-by: phh, shade
Backport-of: 269eae61894b6bd0a7512045a369b53df747f6e5

! jdk/src/solaris/native/sun/nio/ch/DatagramChannelImpl.c
! jdk/test/java/nio/channels/DatagramChannel/Disconnect.java

Changeset: 85622986
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-05-24 22:30:07 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/8562298613992526914416039f27c51e280703f7

8268558: [TESTBUG] Case 2 in TestP11KeyFactoryGetRSAKeySpec is skipped

Reviewed-by: phh
Backport-of: 041ae20b10e11381415e8f61fd39e9e19aa8d4f2

! jdk/test/sun/security/pkcs11/rsa/TestP11KeyFactoryGetRSAKeySpec.java

Changeset: 764dbd54
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-05-24 22:38:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/764dbd54958f606475092d2ccc5f831d9ad5d7d5

8307310: Backport the tests for JDK-8058969 and JDK-8039271 to the OpenJDK8

Reviewed-by: phh

+ jdk/test/java/awt/Color/LoadProfileWithSM.java
+ jdk/test/java/awt/Color/LoadStandardProfilesTest.java

Changeset: 20b4c702
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-05-25 00:23:35 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/20b4c702073a20e7809024277cb03317219c4264

8072678: Wrong exception messages in java.awt.color.ICC_ColorSpace

Backport-of: f4fa68a2a795ca073409b76332037cc601e66b13

! jdk/src/share/classes/java/awt/color/ICC_ColorSpace.java
+ jdk/test/java/awt/Color/GetMinMaxValue_ICC_ColorSpace.java

Changeset: 54208fcd
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-05-25 16:59:43 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/54208fcd86ade96a286f58c533fd211085566dd1

8305975: Add TWCA Global Root CA

Reviewed-by: andrew
Backport-of: 093f02aadbeedb8f22db7512cb5555c4c890b0fc

+ jdk/make/data/cacerts/twcaglobalrootca
+ jdk/test/security/infra/java/security/cert/CertPathValidator/certification/TWCAGlobalCA.java
! jdk/test/sun/security/lib/cacerts/VerifyCACerts.java

Changeset: 29ba98e5
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-05-25 17:30:08 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/29ba98e59b2df7fd85d3f0a000df0554fea845c2

8298108: Add a regression test for JDK-8297684
8298271: java/security/SignedJar/spi-calendar-provider/TestSPISigned.java failing on Windows

Reviewed-by: phh, andrew
Backport-of: 4da8411674b7515310000bd8243860bc73f9a03d

+ jdk/test/java/security/SignedJar/spi-calendar-provider/TestSPISigned.java
+ jdk/test/java/security/SignedJar/spi-calendar-provider/provider/baz/CalendarDataProviderImpl.java
+ jdk/test/java/security/SignedJar/spi-calendar-provider/provider/meta/META-INF/services/java.util.spi.CalendarDataProvider

Changeset: f5c2c39f
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-05-26 08:16:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f5c2c39f665788bdcfdf915e5429032da9a675fd

8304760: Add 2 Microsoft TLS roots

Reviewed-by: andrew
Backport-of: f655ccd1c74bb18000ef2789d26952055c2deba1

+ jdk/make/data/cacerts/microsoftecc2017
+ jdk/make/data/cacerts/microsoftrsa2017
+ jdk/test/security/infra/java/security/cert/CertPathValidator/certification/MicrosoftTLS.java
! jdk/test/sun/security/lib/cacerts/VerifyCACerts.java

Changeset: 8efa32e5
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-05-26 12:05:17 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/8efa32e54e23a0fb99cd7df697bec7e6c6baf8bf

8307134: Add GTS root CAs

Reviewed-by: andrew
Backport-of: 03030d47ebee5c20919fe0162ec86d3d400cd955

+ jdk/make/data/cacerts/gtsrootcar1
+ jdk/make/data/cacerts/gtsrootcar2
+ jdk/make/data/cacerts/gtsrootecccar3
+ jdk/make/data/cacerts/gtsrootecccar4
+ jdk/test/security/infra/java/security/cert/CertPathValidator/certification/GoogleCA.java
! jdk/test/sun/security/lib/cacerts/VerifyCACerts.java

Changeset: 392b5a98
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-17 17:48:11 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/392b5a98de148165dba0ed6d31eced9cfb8fea64

Merge jdk8u382-b03

Added tag jdk8u382-b03 for changeset 8efa32e54e2



From andrew at openjdk.org  Tue Jun 17 17:31:46 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 17:31:46 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u392-b00 for changeset
 8efa32e5
Message-ID: <af5021a9-05a9-4a4c-b8df-7474ed1d1b81@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-07-31 17:52:32 +0000

Added tag jdk8u392-b00 for changeset 8efa32e54e2
Changeset: 8efa32e5
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-05-26 12:05:17 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/8efa32e54e23a0fb99cd7df697bec7e6c6baf8bf


From andrew at openjdk.org  Tue Jun 17 17:31:51 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 17:31:51 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u392-b00 for
 changeset 392b5a98
Message-ID: <00f86774-3576-4ec5-ab58-76db0d7b51a0@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-17 18:15:48 +0000

Added tag shenandoah8u392-b00 for changeset 392b5a98de1
Changeset: 392b5a98
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-17 17:48:11 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/392b5a98de148165dba0ed6d31eced9cfb8fea64


From andrew at openjdk.org  Tue Jun 17 17:31:57 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 17:31:57 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u382-b03 for changeset
 8efa32e5
Message-ID: <649dc052-03d6-4c2e-a6ac-495e09c171b0@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-05-30 20:06:45 +0000

Added tag jdk8u382-b03 for changeset 8efa32e54e2
Changeset: 8efa32e5
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-05-26 12:05:17 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/8efa32e54e23a0fb99cd7df697bec7e6c6baf8bf


From andrew at openjdk.org  Tue Jun 17 17:32:03 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 17:32:03 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u382-b03 for
 changeset 392b5a98
Message-ID: <3385c1c2-7b8b-453d-bdb2-cf20fc1a1bbd@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-17 18:15:36 +0000

Added tag shenandoah8u382-b03 for changeset 392b5a98de1
Changeset: 392b5a98
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-17 17:48:11 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/392b5a98de148165dba0ed6d31eced9cfb8fea64


From iris at openjdk.org  Tue Jun 17 17:33:11 2025
From: iris at openjdk.org (Iris Clark)
Date: Tue, 17 Jun 2025 17:33:11 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <yt-p6TBufEQ5G-YFbfySjqIxy3ABg45uPDAiiJAQ8GY=.14119c78-d4b1-458f-9015-79af6d97fd2b@github.com>
References: <yt-p6TBufEQ5G-YFbfySjqIxy3ABg45uPDAiiJAQ8GY=.14119c78-d4b1-458f-9015-79af6d97fd2b@github.com>
Message-ID: <Xop6k1OXtKhmdZEzj2ZuA27btTD4AVz6-wK2tRKXPy0=.a3fe90f1-000b-4581-b1a6-d338d05891ad@github.com>

On Tue, 17 Jun 2025 17:18:10 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u382-b03
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/49

From andrew at openjdk.org  Tue Jun 17 17:33:11 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 17:33:11 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <yt-p6TBufEQ5G-YFbfySjqIxy3ABg45uPDAiiJAQ8GY=.14119c78-d4b1-458f-9015-79af6d97fd2b@github.com>
References: <yt-p6TBufEQ5G-YFbfySjqIxy3ABg45uPDAiiJAQ8GY=.14119c78-d4b1-458f-9015-79af6d97fd2b@github.com>
Message-ID: <B3_p-Ms1G7FC9H82mfPHljY2NMxMHqM7RIHSKX3mRDU=.26a8090b-882a-4c56-b07f-b057b9d8aa5a@github.com>

> Merge jdk8u382-b03
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/49/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/49/files/392b5a98..392b5a98

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=49&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=49&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/49.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/49/head:pull/49

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/49

From andrew at openjdk.org  Tue Jun 17 18:12:48 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 18:12:48 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <GW3I415yMg8sOZON_vbeg_qyb8lpR6ldnYkRwaSGBII=.47245310-a029-4ffe-9861-aaf4ee72451b@github.com>

Merge jdk8u382-b04

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

Commit messages:
 - Merge jdk8u382-b04
 - 8241311: Move some charset mapping tests from closed to open
 - 8186801: Add regression test to test mapping based charsets (generated at build time)

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/50/files
  Stats: 887690 lines in 180 files changed: 887689 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/50.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/50/head:pull/50

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/50

From andrew at openjdk.org  Tue Jun 17 18:29:17 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 18:29:17 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 3 new changesets
Message-ID: <598fd808-08ee-42f6-9086-387f3abcc676@openjdk.org>

Changeset: 1818eaf7
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-06-23 09:50:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1818eaf77e9ca6478627ef9471cae4163d16329a

8186801: Add regression test to test mapping based charsets (generated at build time)

Reviewed-by: stuefe, sgehwolf
Backport-of: cfe34ed89c4f6ef9a49dceef30da1e43b418b152

= jdk/make/data/charsetmapping/Big5_HKSCS.c2b
+ jdk/make/data/charsetmapping/Big5_HKSCS.map
+ jdk/make/data/charsetmapping/Big5_HKSCS.nr
= jdk/make/data/charsetmapping/Big5_Solaris.map
+ jdk/make/data/charsetmapping/EUC_JP.map
+ jdk/make/data/charsetmapping/EUC_JP_LINUX.map
+ jdk/make/data/charsetmapping/EUC_JP_Open.map
= jdk/make/data/charsetmapping/EUC_TW.map
+ jdk/make/data/charsetmapping/EUC_TW.nr
+ jdk/make/data/charsetmapping/GB18030.map
+ jdk/make/data/charsetmapping/MS950_HKSCS_XP.map
! jdk/make/src/classes/build/tools/charsetmapping/EUC_TW.java
+ jdk/test/sun/nio/cs/TestCharsetMapping.java
+ jdk/test/sun/nio/cs/TestEBCDICLineFeed.java

Changeset: 0bec498f
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-06-23 12:20:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0bec498fc945a49f1134e02eb477e0af15db3b5b

8241311: Move some charset mapping tests from closed to open

Reviewed-by: sgehwolf
Backport-of: c809c9944400f7ee9bc296e40d6068273bde5912

+ jdk/test/sun/nio/cs/mapping/Big5.b2c
= jdk/test/sun/nio/cs/mapping/Big5.b2c-irreversible
+ jdk/test/sun/nio/cs/mapping/Big5_HKSCS.b2c
+ jdk/test/sun/nio/cs/mapping/Big5_HKSCS.b2c-irreversible
= jdk/test/sun/nio/cs/mapping/Big5_HKSCS.c2b-irreversible
+ jdk/test/sun/nio/cs/mapping/Big5_HKSCS_2001.b2c
+ jdk/test/sun/nio/cs/mapping/Big5_HKSCS_2001.c2b-irreversible
= jdk/test/sun/nio/cs/mapping/Big5_Solaris.b2c
+ jdk/test/sun/nio/cs/mapping/CoderTest.java
+ jdk/test/sun/nio/cs/mapping/ConverterTest.java
+ jdk/test/sun/nio/cs/mapping/Cp037.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1006.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1025.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1026.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1046.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1047.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1097.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1098.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1112.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1122.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1123.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1124.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1250.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1251.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1252.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1253.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1254.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1255.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1256.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1257.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1258.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1364.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1364.c2b-irreversible
+ jdk/test/sun/nio/cs/mapping/Cp1381.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1381.c2b-irreversible
+ jdk/test/sun/nio/cs/mapping/Cp1383.b2c
+ jdk/test/sun/nio/cs/mapping/Cp1383.b2c-irreversible
+ jdk/test/sun/nio/cs/mapping/Cp273.b2c
+ jdk/test/sun/nio/cs/mapping/Cp277.b2c
+ jdk/test/sun/nio/cs/mapping/Cp278.b2c
+ jdk/test/sun/nio/cs/mapping/Cp280.b2c
+ jdk/test/sun/nio/cs/mapping/Cp284.b2c
+ jdk/test/sun/nio/cs/mapping/Cp285.b2c
+ jdk/test/sun/nio/cs/mapping/Cp290.b2c
+ jdk/test/sun/nio/cs/mapping/Cp290.c2b-irreversible
+ jdk/test/sun/nio/cs/mapping/Cp297.b2c
+ jdk/test/sun/nio/cs/mapping/Cp300.b2c
= jdk/test/sun/nio/cs/mapping/Cp300.c2b-irreversible
+ jdk/test/sun/nio/cs/mapping/Cp33722.b2c
+ jdk/test/sun/nio/cs/mapping/Cp420.b2c
+ jdk/test/sun/nio/cs/mapping/Cp420.b2c-irreversible
+ jdk/test/sun/nio/cs/mapping/Cp420.c2b-irreversible
+ jdk/test/sun/nio/cs/mapping/Cp424.b2c
+ jdk/test/sun/nio/cs/mapping/Cp437.b2c
+ jdk/test/sun/nio/cs/mapping/Cp500.b2c
+ jdk/test/sun/nio/cs/mapping/Cp737.b2c
+ jdk/test/sun/nio/cs/mapping/Cp775.b2c
+ jdk/test/sun/nio/cs/mapping/Cp833.b2c
+ jdk/test/sun/nio/cs/mapping/Cp833.c2b-irreversible
+ jdk/test/sun/nio/cs/mapping/Cp834.b2c
+ jdk/test/sun/nio/cs/mapping/Cp834.c2b-irreversible
+ jdk/test/sun/nio/cs/mapping/Cp838.b2c
+ jdk/test/sun/nio/cs/mapping/Cp850.b2c
+ jdk/test/sun/nio/cs/mapping/Cp852.b2c
+ jdk/test/sun/nio/cs/mapping/Cp855.b2c
+ jdk/test/sun/nio/cs/mapping/Cp856.b2c
+ jdk/test/sun/nio/cs/mapping/Cp857.b2c
+ jdk/test/sun/nio/cs/mapping/Cp860.b2c
+ jdk/test/sun/nio/cs/mapping/Cp861.b2c
+ jdk/test/sun/nio/cs/mapping/Cp862.b2c
+ jdk/test/sun/nio/cs/mapping/Cp863.b2c
+ jdk/test/sun/nio/cs/mapping/Cp864.b2c
+ jdk/test/sun/nio/cs/mapping/Cp865.b2c
+ jdk/test/sun/nio/cs/mapping/Cp866.b2c
+ jdk/test/sun/nio/cs/mapping/Cp868.b2c
+ jdk/test/sun/nio/cs/mapping/Cp869.b2c
+ jdk/test/sun/nio/cs/mapping/Cp870.b2c
+ jdk/test/sun/nio/cs/mapping/Cp871.b2c
+ jdk/test/sun/nio/cs/mapping/Cp874.b2c
+ jdk/test/sun/nio/cs/mapping/Cp874.b2c-irreversible
+ jdk/test/sun/nio/cs/mapping/Cp875.b2c
+ jdk/test/sun/nio/cs/mapping/Cp918.b2c
+ jdk/test/sun/nio/cs/mapping/Cp921.b2c
+ jdk/test/sun/nio/cs/mapping/Cp922.b2c
+ jdk/test/sun/nio/cs/mapping/Cp930.b2c
+ jdk/test/sun/nio/cs/mapping/Cp933.b2c
+ jdk/test/sun/nio/cs/mapping/Cp935.b2c
+ jdk/test/sun/nio/cs/mapping/Cp937.b2c
+ jdk/test/sun/nio/cs/mapping/Cp937.b2c-irreversible
+ jdk/test/sun/nio/cs/mapping/Cp939.b2c
+ jdk/test/sun/nio/cs/mapping/Cp942.b2c
+ jdk/test/sun/nio/cs/mapping/Cp943.b2c
+ jdk/test/sun/nio/cs/mapping/Cp948.b2c
+ jdk/test/sun/nio/cs/mapping/Cp948.b2c-irreversible
+ jdk/test/sun/nio/cs/mapping/Cp948.c2b-irreversible
+ jdk/test/sun/nio/cs/mapping/Cp949.b2c
+ jdk/test/sun/nio/cs/mapping/Cp950.b2c
+ jdk/test/sun/nio/cs/mapping/Cp950.b2c-irreversible
+ jdk/test/sun/nio/cs/mapping/Cp950.c2b-irreversible
+ jdk/test/sun/nio/cs/mapping/Cp964.b2c
+ jdk/test/sun/nio/cs/mapping/Cp964.b2c-irreversible
+ jdk/test/sun/nio/cs/mapping/Cp970.b2c
+ jdk/test/sun/nio/cs/mapping/Cp970.c2b-irreversible
+ jdk/test/sun/nio/cs/mapping/EUC_CN.b2c
+ jdk/test/sun/nio/cs/mapping/EUC_JP.b2c
+ jdk/test/sun/nio/cs/mapping/EUC_JP_LINUX.b2c
+ jdk/test/sun/nio/cs/mapping/EUC_JP_Solaris.b2c
+ jdk/test/sun/nio/cs/mapping/EUC_KR.b2c
+ jdk/test/sun/nio/cs/mapping/EUC_TW.b2c
+ jdk/test/sun/nio/cs/mapping/GB18030.b2c
+ jdk/test/sun/nio/cs/mapping/GBK.b2c
+ jdk/test/sun/nio/cs/mapping/ISO8859_11.b2c
+ jdk/test/sun/nio/cs/mapping/ISO8859_2.b2c
+ jdk/test/sun/nio/cs/mapping/ISO8859_3.b2c
+ jdk/test/sun/nio/cs/mapping/ISO8859_4.b2c
+ jdk/test/sun/nio/cs/mapping/ISO8859_5.b2c
+ jdk/test/sun/nio/cs/mapping/ISO8859_6.b2c
+ jdk/test/sun/nio/cs/mapping/ISO8859_7.b2c
+ jdk/test/sun/nio/cs/mapping/ISO8859_8.b2c
+ jdk/test/sun/nio/cs/mapping/ISO8859_9.b2c
+ jdk/test/sun/nio/cs/mapping/JIS0201.b2c.private
+ jdk/test/sun/nio/cs/mapping/JIS0208.b2c.private
+ jdk/test/sun/nio/cs/mapping/JIS0212.b2c.private
+ jdk/test/sun/nio/cs/mapping/Johab.b2c
+ jdk/test/sun/nio/cs/mapping/KOI8_R.b2c
+ jdk/test/sun/nio/cs/mapping/KOI8_U.b2c
+ jdk/test/sun/nio/cs/mapping/MS50221_0208.b2c
+ jdk/test/sun/nio/cs/mapping/MS50221_0212.b2c
+ jdk/test/sun/nio/cs/mapping/MS874.b2c
+ jdk/test/sun/nio/cs/mapping/MS932.b2c.private
+ jdk/test/sun/nio/cs/mapping/MS932DB.b2c.private
+ jdk/test/sun/nio/cs/mapping/MS932DB.c2b.private
+ jdk/test/sun/nio/cs/mapping/MS932_0208.b2c
+ jdk/test/sun/nio/cs/mapping/MS936.b2c
+ jdk/test/sun/nio/cs/mapping/MS949.b2c
+ jdk/test/sun/nio/cs/mapping/MS950.b2c
+ jdk/test/sun/nio/cs/mapping/MS950.b2c-irreversible
+ jdk/test/sun/nio/cs/mapping/MS950.c2b-irreversible
+ jdk/test/sun/nio/cs/mapping/MS950_HKSCS.b2c
+ jdk/test/sun/nio/cs/mapping/MS950_HKSCS.c2b-irreversible
+ jdk/test/sun/nio/cs/mapping/MS950_HKSCS_XP.b2c
+ jdk/test/sun/nio/cs/mapping/MSCP932.b2c.abigail
+ jdk/test/sun/nio/cs/mapping/MacArabic.b2c
+ jdk/test/sun/nio/cs/mapping/MacCentralEurope.b2c
+ jdk/test/sun/nio/cs/mapping/MacCroatian.b2c
+ jdk/test/sun/nio/cs/mapping/MacCyrillic.b2c
+ jdk/test/sun/nio/cs/mapping/MacDingbat.b2c
+ jdk/test/sun/nio/cs/mapping/MacGreek.b2c
+ jdk/test/sun/nio/cs/mapping/MacHebrew.b2c
+ jdk/test/sun/nio/cs/mapping/MacIceland.b2c
+ jdk/test/sun/nio/cs/mapping/MacRoman.b2c
+ jdk/test/sun/nio/cs/mapping/MacRomania.b2c
+ jdk/test/sun/nio/cs/mapping/MacSymbol.b2c
+ jdk/test/sun/nio/cs/mapping/MacThai.b2c
+ jdk/test/sun/nio/cs/mapping/MacTurkish.b2c
+ jdk/test/sun/nio/cs/mapping/MacUkraine.b2c
+ jdk/test/sun/nio/cs/mapping/PCK.b2c
+ jdk/test/sun/nio/cs/mapping/PCK.b2c-irreversible
+ jdk/test/sun/nio/cs/mapping/SJIS.b2c
+ jdk/test/sun/nio/cs/mapping/SJIS_0213.b2c
+ jdk/test/sun/nio/cs/mapping/TIS620.b2c
+ jdk/test/sun/nio/cs/mapping/TestConv.java
+ jdk/test/sun/nio/cs/mapping/TestFmwk.java
+ jdk/test/sun/nio/cs/mapping/untested/X11SunUnicode_0.b2c
+ jdk/test/sun/nio/cs/mapping/untested/gb18030_0.b2c
+ jdk/test/sun/nio/cs/mapping/untested/gb18030_1.b2c

Changeset: c433eac6
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-17 18:30:18 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c433eac6aaa9050507ed6fe374f0132a5614fc54

Merge jdk8u382-b04

Added tag jdk8u382-b04 for changeset 0bec498fc94



From andrew at openjdk.org  Tue Jun 17 18:29:26 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 18:29:26 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <GW3I415yMg8sOZON_vbeg_qyb8lpR6ldnYkRwaSGBII=.47245310-a029-4ffe-9861-aaf4ee72451b@github.com>
References: <GW3I415yMg8sOZON_vbeg_qyb8lpR6ldnYkRwaSGBII=.47245310-a029-4ffe-9861-aaf4ee72451b@github.com>
Message-ID: <BGc22gchYCkd6eSlCEA_7ZLE0A6A21WpGK_q9Wrkv2s=.41a2b66e-edce-4273-a50f-f522b29f0df8@github.com>

> Merge jdk8u382-b04
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/50/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/50/files/c433eac6..c433eac6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=50&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=50&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/50.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/50/head:pull/50

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/50

From iris at openjdk.org  Tue Jun 17 18:29:27 2025
From: iris at openjdk.org (Iris Clark)
Date: Tue, 17 Jun 2025 18:29:27 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <GW3I415yMg8sOZON_vbeg_qyb8lpR6ldnYkRwaSGBII=.47245310-a029-4ffe-9861-aaf4ee72451b@github.com>
References: <GW3I415yMg8sOZON_vbeg_qyb8lpR6ldnYkRwaSGBII=.47245310-a029-4ffe-9861-aaf4ee72451b@github.com>
Message-ID: <iTY44ihuXXI0-aKK_Fr8P3jXBccUXqsoXyB8JrhUAYU=.64f5ff53-a7bc-47b6-8725-a1a07b6d305b@github.com>

On Tue, 17 Jun 2025 18:08:51 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u382-b04
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/50

From andrew at openjdk.org  Tue Jun 17 18:29:28 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 18:29:28 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u382-b04 for changeset
 0bec498f
Message-ID: <1feaf7d3-74b7-453c-b12e-df450245752f@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-06-26 16:36:17 +0000

Added tag jdk8u382-b04 for changeset 0bec498fc94
Changeset: 0bec498f
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-06-23 12:20:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/0bec498fc945a49f1134e02eb477e0af15db3b5b


From andrew at openjdk.org  Tue Jun 17 18:29:33 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Tue, 17 Jun 2025 18:29:33 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u382-b04 for
 changeset c433eac6
Message-ID: <dd0edccc-bee2-4f60-b866-a818c0da5d04@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-17 19:02:38 +0000

Added tag shenandoah8u382-b04 for changeset c433eac6aaa
Changeset: c433eac6
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-17 18:30:18 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/c433eac6aaa9050507ed6fe374f0132a5614fc54


From dlong at openjdk.org  Tue Jun 17 20:55:29 2025
From: dlong at openjdk.org (Dean Long)
Date: Tue, 17 Jun 2025 20:55:29 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <NXEl1i8ECESz1PQoLstGmaOkzffoX_17X6Bsjqz7WGA=.1f7458a4-43b1-40c8-bade-895ddd7ded1e@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
 <SHo1MHmCagVN25GGMf9dy8DXeRuxBxtN924XLZ-hUBw=.b40304b3-67e1-4cd6-b5d8-45f15aee0c94@github.com>
 <-qfpN8-hyWv-QosNnOUvLaZtsI0Kr1vXsTIV6Tqvd-w=.badb50d8-3f05-41d1-bc90-d5939d6b571f@github.com>
 <NXEl1i8ECESz1PQoLstGmaOkzffoX_17X6Bsjqz7WGA=.1f7458a4-43b1-40c8-bade-895ddd7ded1e@github.com>
Message-ID: <87D1GHpnuO66YKnlxRh6JOlp7AZoZxhLBDbCpUG230A=.9119d110-62ba-4083-9a85-9bf78f5b462b@github.com>

On Tue, 17 Jun 2025 12:50:18 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

> > > Seems like arm32 has the same issue:
> > > https://github.com/openjdk/jdk/blob/9d060574e5dbd13e634f00d749d0108ceff1fae8/src/hotspot/cpu/arm/gc/shared/barrierSetAssembler_arm.cpp#L199
> > > 
> > > The init value shouldn't have the sticky bit set.
> > 
> > 
> > Thanks, I pushed a potential fix for that.
> 
> Unfortunately, 0xBEAFDEAD also has the MSB set. Shouldn't we better use 0 like on all other platforms?

Oops, I was tripped up trying to be clever.  Yes, I'm fine with using 0.  I'll fix it.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25764#issuecomment-2981800170

From dlong at openjdk.org  Tue Jun 17 20:59:46 2025
From: dlong at openjdk.org (Dean Long)
Date: Tue, 17 Jun 2025 20:59:46 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v8]
In-Reply-To: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
Message-ID: <2gdPUDg-i40xRoO8LZPWszL2-oa6s7GNZEDRfHfDk8s=.4dbfe74a-070b-46c1-b73d-0292824d02e9@github.com>

> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
> 
> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
> 
> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
> 
> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
> 
> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.

Dean Long has updated the pull request incrementally with one additional commit since the last revision:

  2nd try at arm fix

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25764/files
  - new: https://git.openjdk.org/jdk/pull/25764/files/3ac6dec0..3e306dde

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25764&range=07
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25764&range=06-07

  Stats: 4 lines in 1 file changed: 0 ins; 3 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/25764.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25764/head:pull/25764

PR: https://git.openjdk.org/jdk/pull/25764

From wkemper at openjdk.org  Tue Jun 17 21:20:40 2025
From: wkemper at openjdk.org (William Kemper)
Date: Tue, 17 Jun 2025 21:20:40 GMT
Subject: RFR: 8357976: GenShen crash in swap_card_tables: Should be clean
 [v3]
In-Reply-To: <CjZ6dIlFiEB6B2CPYf6-WdhawkxODxLh_WhGT_QlkE0=.c09a4c8b-28e6-4574-9592-01ab2b063d60@github.com>
References: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
 <dpo3e1f5q1xe3MxkRyGoYs26jykQl7qg8YYtuUTl8oA=.0ba67ed6-ba73-4b14-b949-aae6003de160@github.com>
 <CjZ6dIlFiEB6B2CPYf6-WdhawkxODxLh_WhGT_QlkE0=.c09a4c8b-28e6-4574-9592-01ab2b063d60@github.com>
Message-ID: <sw8t067N68oZGHJhSxUDtEg5u6nIK9Uf1LxS1ly4ZBk=.560b3498-dba1-4d8d-ab4b-441b7ad1fb15@github.com>

On Tue, 17 Jun 2025 00:12:04 GMT, Y. Srinivas Ramakrishna <ysr at openjdk.org> wrote:

>> William Kemper has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Revert "Consolidate read table cleaning"
>>   
>>   This reverts commit 9552021cbeec699e7b04db81fa68819c23b7dab7.
>
> @earthling-amzn : 
> 
>> Genshen does not clean the read table at the end of a concurrent cycle (we could do this, but we'd still need to do the same in a degenerated cycle).
> 
> Yes, and I am suggesting we do that to clean up and consolidate the cleaning along multiple paths into the same method that is invoked at an identical point in the Collector's state machine, irrespective of whether we arrived at that state via a concurrent collection or a degeneration.
> 
>> The complexity comes from swapping the card tables in a concurrent cycle. We must not let a subsequent degenerated cycle swap them a second time. The degenerated cycle can only clean the read table if there was no active concurrent cycle (lest it throw away critical remembered set data).
> 
> The swapping must happen at the start of the marking cycle. In similar fashion, the state of the Collector's state machine should indicate if the swap has already been done in this cycle or not. The specifics of wheher the swap was done by a degenerate or concurrent collection should then not matter?
> 
>> However, the degenerated cycle must also clear the mark bitmaps if the concurrent cycle degenerated during the root scan (the degenerated cycle will rescan the roots). Of course, we cannot clear the mark bitmaps if the concurrent cycle degenerated during the mark phase. So, for the degenerated cycle, clearing the mark bitmaps and cleaning the read table need to happen in two different cases and it doesn't work if they're combined into the same method (and I don't think adding a method parameter to sometimes clear the mark bitmap and sometimes the read table will make the code any easier to understand).
> 
> That's OK, they can be in two different methods, with the clearing of the marking bitmap done in one case and not in the other based on when the degeeration occurred. I think may be we don't have sufficiently refined Collector state machine at the moment which may be part of the problem here.
> 
> That having been said, I can understand that:
> 
>> The refactoring you suggest is not so simple, alas. 
> 
> In particular, if our eventual future plan is to do away with degeneration as we know it today, then the refactoring to achieve the clean up I suggest may be moot.
> 
> With that in mind, I am going to approve the changes in their current form as they look right if somewhat difficult to maintain and prove the correctness of. (The more refined state machine approach would likely make it easier, but will be moot once degeneration is el...

Thanks for the review @ysramakrishna . The plan is to get rid of degenerated cycles, but if the plan changes we certainly need to invest in a stronger state machine for the GC here.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25735#issuecomment-2981851757

From wkemper at openjdk.org  Tue Jun 17 21:20:41 2025
From: wkemper at openjdk.org (William Kemper)
Date: Tue, 17 Jun 2025 21:20:41 GMT
Subject: Integrated: 8357976: GenShen crash in swap_card_tables: Should be
 clean
In-Reply-To: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
References: <oJHVyiiim5PQDLgK3j1cgED8Kv-jAcR9AdMSOPyzAqQ=.31ccfc92-3844-4975-b5e1-984d932a7117@github.com>
Message-ID: <eo01j8OizFzYDv5XwzAcHvdNAdHkEMWG7cAiYJ72sKE=.4c0e3ba7-63ab-43ce-9aa3-3865e4f50c35@github.com>

On Tue, 10 Jun 2025 20:14:49 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Degenerated cycles must also clean the `read` card table before swapping it with the `write` card table.

This pull request has now been integrated.

Changeset: 382f870c
Author:    William Kemper <wkemper at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/382f870cd53d69dfc1d2b96150aa2c026e47f642
Stats:     17 lines in 2 files changed: 10 ins; 4 del; 3 mod

8357976: GenShen crash in swap_card_tables: Should be clean

Reviewed-by: kdnilsen, cslucas, ysr, xpeng

-------------

PR: https://git.openjdk.org/jdk/pull/25735

From mdoerr at openjdk.org  Wed Jun 18 08:33:37 2025
From: mdoerr at openjdk.org (Martin Doerr)
Date: Wed, 18 Jun 2025 08:33:37 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v8]
In-Reply-To: <2gdPUDg-i40xRoO8LZPWszL2-oa6s7GNZEDRfHfDk8s=.4dbfe74a-070b-46c1-b73d-0292824d02e9@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <2gdPUDg-i40xRoO8LZPWszL2-oa6s7GNZEDRfHfDk8s=.4dbfe74a-070b-46c1-b73d-0292824d02e9@github.com>
Message-ID: <sc4GKWY-5ptN8_s6UfuDx26vLOMpv23NNw-74eRGNNo=.13ccc52e-49e5-495f-9fe6-6dd922a8a2c2@github.com>

On Tue, 17 Jun 2025 20:59:46 GMT, Dean Long <dlong at openjdk.org> wrote:

>> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
>> 
>> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
>> 
>> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
>> 
>> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
>> 
>> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.
>
> Dean Long has updated the pull request incrementally with one additional commit since the last revision:
> 
>   2nd try at arm fix

Recent changes look good. Thanks!

-------------

Marked as reviewed by mdoerr (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25764#pullrequestreview-2938255719

From ayang at openjdk.org  Wed Jun 18 09:03:28 2025
From: ayang at openjdk.org (Albert Mingkun Yang)
Date: Wed, 18 Jun 2025 09:03:28 GMT
Subject: RFR: JDK-8349077 : Rename GenerationCounters::update_all [v6]
In-Reply-To: <ZwsxXACvAszjzn0JU6I-aA2rx62DD_o-zViqGyDWbKU=.f701f11b-4767-49ad-a43d-d2cf4a918963@github.com>
References: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
 <ZwsxXACvAszjzn0JU6I-aA2rx62DD_o-zViqGyDWbKU=.f701f11b-4767-49ad-a43d-d2cf4a918963@github.com>
Message-ID: <qr0T1uENxttpO328Nm5WrWGxtHXC0T7pXYIZ-iGN7aw=.2a5d52a5-71f2-44ec-b072-851278900f8e@github.com>

On Tue, 17 Jun 2025 14:59:01 GMT, Suchismith Roy <sroy at openjdk.org> wrote:

>> JBS Issue : [JDK-8349077](https://bugs.openjdk.org/browse/JDK-8349077)
>> 
>> we found the method names update_all of the class GenerationCounters and its subclasses are not so good. It is better to rename it to something like update_capacity (such as ZGenerationCounters::update_capacity).
>> 
>> 
>> 
>> Update_capacity exists, since update_all updates the size and used , I found update_memory_state as a better name for this method.
>
> Suchismith Roy has updated the pull request incrementally with one additional commit since the last revision:
> 
>   g1Monitoring

Marked as reviewed by ayang (Reviewer).

-------------

PR Review: https://git.openjdk.org/jdk/pull/25833#pullrequestreview-2938359236

From stefank at openjdk.org  Wed Jun 18 09:31:30 2025
From: stefank at openjdk.org (Stefan Karlsson)
Date: Wed, 18 Jun 2025 09:31:30 GMT
Subject: RFR: JDK-8349077 : Rename GenerationCounters::update_all [v6]
In-Reply-To: <ZwsxXACvAszjzn0JU6I-aA2rx62DD_o-zViqGyDWbKU=.f701f11b-4767-49ad-a43d-d2cf4a918963@github.com>
References: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
 <ZwsxXACvAszjzn0JU6I-aA2rx62DD_o-zViqGyDWbKU=.f701f11b-4767-49ad-a43d-d2cf4a918963@github.com>
Message-ID: <krrbu8KadaF1BPBP_tKZf4MiVUr9UhDgJwjBTH8tb_I=.bbcea176-1835-4959-885a-9b2c165cca9f@github.com>

On Tue, 17 Jun 2025 14:59:01 GMT, Suchismith Roy <sroy at openjdk.org> wrote:

>> JBS Issue : [JDK-8349077](https://bugs.openjdk.org/browse/JDK-8349077)
>> 
>> we found the method names update_all of the class GenerationCounters and its subclasses are not so good. It is better to rename it to something like update_capacity (such as ZGenerationCounters::update_capacity).
>> 
>> 
>> 
>> Update_capacity exists, since update_all updates the size and used , I found update_memory_state as a better name for this method.
>
> Suchismith Roy has updated the pull request incrementally with one additional commit since the last revision:
> 
>   g1Monitoring

src/hotspot/share/gc/z/zServiceability.cpp line 70:

> 68:   void update_capacity(size_t capacity) {
> 69:     update_all(capacity);
> 70:   }

Could you also delete line 67.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/25833#discussion_r2154104691

From stefank at openjdk.org  Wed Jun 18 09:31:30 2025
From: stefank at openjdk.org (Stefan Karlsson)
Date: Wed, 18 Jun 2025 09:31:30 GMT
Subject: RFR: JDK-8349077 : Rename GenerationCounters::update_all [v6]
In-Reply-To: <krrbu8KadaF1BPBP_tKZf4MiVUr9UhDgJwjBTH8tb_I=.bbcea176-1835-4959-885a-9b2c165cca9f@github.com>
References: <GrGmGuAc_LX6Jk9asMq3v9oo-SguTPvyGDrtezm9Kr8=.71e87459-9529-455d-96a3-ce6d3c05c336@github.com>
 <ZwsxXACvAszjzn0JU6I-aA2rx62DD_o-zViqGyDWbKU=.f701f11b-4767-49ad-a43d-d2cf4a918963@github.com>
 <krrbu8KadaF1BPBP_tKZf4MiVUr9UhDgJwjBTH8tb_I=.bbcea176-1835-4959-885a-9b2c165cca9f@github.com>
Message-ID: <H1aSUmWywDhAHCSIDpYaTAtSbMht8cD4aLSwmVTKo04=.864d47c3-213c-407d-b6e7-0a2c892a9063@github.com>

On Wed, 18 Jun 2025 09:18:32 GMT, Stefan Karlsson <stefank at openjdk.org> wrote:

>> Suchismith Roy has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   g1Monitoring
>
> src/hotspot/share/gc/z/zServiceability.cpp line 70:
> 
>> 68:   void update_capacity(size_t capacity) {
>> 69:     update_all(capacity);
>> 70:   }
> 
> Could you also delete line 67.

Or maybe even better just entirely delete `ZGenerationCounters` and replace its usages with `GenerationCounters`.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/25833#discussion_r2154111929

From eosterlund at openjdk.org  Wed Jun 18 11:36:30 2025
From: eosterlund at openjdk.org (Erik =?UTF-8?B?w5ZzdGVybHVuZA==?=)
Date: Wed, 18 Jun 2025 11:36:30 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <fpMEJ1QMx9Gwi2hColGPHea1w7wWdBmtZ5gVEissNHs=.4da2e5ad-71e5-4ae5-9dc3-5ebf8bdd0669@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
 <ENAa5ub1BOWT5p9ag_BQ4j8NYmjODwJKwGoobXt4j0Y=.b597446f-e654-4083-bf6a-29c3eee0560c@github.com>
 <fpMEJ1QMx9Gwi2hColGPHea1w7wWdBmtZ5gVEissNHs=.4da2e5ad-71e5-4ae5-9dc3-5ebf8bdd0669@github.com>
Message-ID: <KD4P0rdcNlK59MHt8wQVFgWzyLATB0y85kpCWlzWGRU=.a4b3d5d3-85e2-4691-8cc8-874b679058a2@github.com>

On Tue, 17 Jun 2025 00:02:29 GMT, Dean Long <dlong at openjdk.org> wrote:

>> src/hotspot/share/gc/z/zBarrierSetNMethod.cpp line 114:
>> 
>>> 112:   // Preserve the sticky bit
>>> 113:   if (is_not_entrant(nm)) {
>>> 114:     value |= not_entrant;
>> 
>> Is it possible to have a race where another thread sets an nmethod to not entrant and the thread calling this making the nmethod entry barrier not entrant?
>> 
>> If this was called to disarm a method and then enter it, it seems a bit sneaky in that case that we pass the nmethod entry barrier even though we under the lock see that it is not entrant. Probably okay but still feels like it might be more robust if the thread setting an nmethod to not entrant is always the one that arms the nmethod entry barrier.
>
> If I understand your concern correctly, there is no race.  The only caller of BarrierSetNMethod::make_not_entrant() is nmethod::make_not_entrant(), and it is done inside a NMethodState_lock critical section.  After a call to nmethod::make_not_entrant(), the nmethod entry barrier is armed and stays that way.
> And by design, a disarm only disarms at the inner nmethod_entry_barrier level, not the outer nmethod_stub_entry_barrier level.

My concern is that while thread 1 calls nmethod::make_not_entrant(), thread 2 racingly performs nmethod entry barrier; it makes the is_not_entrant check before it gets updated, but then it gets updated as the per nmethod lock is taken. The GC code "disarms" the GC barrier but in doing so finds that "oh this should be not entrant", but that's sort of not reflected as thread 2 will then proceed with entering the nmethod it just armed as not entrant in the nmethod entry barrier code.
Does that make sense?

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/25764#discussion_r2154370247

From andrew at openjdk.org  Wed Jun 18 13:49:52 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 18 Jun 2025 13:49:52 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <d9E9TOS7J-fojRYPD3RAOu9uFq3ukkVg8btsHLwVw_I=.06576f6e-df7f-4064-b77c-071c2920ed3a@github.com>

Merge jdk8u382-b05

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

Commit messages:
 - Merge jdk8u382-b05
 - 8305312: Enhanced path handling
 - 8304468: Better array usages
 - 8300596: Enhance Jar Signature validation
 - 8298676: Enhanced Look and Feel
 - 8301119: Support for GB18030-2022

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/51/files
  Stats: 1077 lines in 16 files changed: 939 ins; 22 del; 116 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/51.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/51/head:pull/51

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/51

From iris at openjdk.org  Wed Jun 18 14:03:02 2025
From: iris at openjdk.org (Iris Clark)
Date: Wed, 18 Jun 2025 14:03:02 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <d9E9TOS7J-fojRYPD3RAOu9uFq3ukkVg8btsHLwVw_I=.06576f6e-df7f-4064-b77c-071c2920ed3a@github.com>
References: <d9E9TOS7J-fojRYPD3RAOu9uFq3ukkVg8btsHLwVw_I=.06576f6e-df7f-4064-b77c-071c2920ed3a@github.com>
Message-ID: <jfIlLNrpV1jIojXiR6SHV3F9D4ePtc4t41b6ADf9ubQ=.3b708051-a38d-4406-9820-762bbebc1acb@github.com>

On Wed, 18 Jun 2025 13:46:05 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u382-b05
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/51

From andrew at openjdk.org  Wed Jun 18 14:03:02 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 18 Jun 2025 14:03:02 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <d9E9TOS7J-fojRYPD3RAOu9uFq3ukkVg8btsHLwVw_I=.06576f6e-df7f-4064-b77c-071c2920ed3a@github.com>
References: <d9E9TOS7J-fojRYPD3RAOu9uFq3ukkVg8btsHLwVw_I=.06576f6e-df7f-4064-b77c-071c2920ed3a@github.com>
Message-ID: <uia_rJ_EhVtxmJLOUmfRZrTYxmhAftGgvj9pJH7Cbbg=.b6bbbe67-f299-47da-8adc-ecd0ca37db90@github.com>

> Merge jdk8u382-b05
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/51/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/51/files/2f3a3c16..2f3a3c16

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=51&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=51&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/51.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/51/head:pull/51

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/51

From andrew at openjdk.org  Wed Jun 18 14:03:23 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 18 Jun 2025 14:03:23 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u382-ga for
 changeset 2f3a3c16
Message-ID: <c7acc018-757a-42a1-ac65-4694a45e92f6@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-18 14:44:51 +0000

Added tag shenandoah8u382-ga for changeset 2f3a3c16e71
Changeset: 2f3a3c16
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-17 19:26:44 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/2f3a3c16e715cf616b8ec3214f0695466b0b5ad4


From andrew at openjdk.org  Wed Jun 18 14:03:00 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 18 Jun 2025 14:03:00 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 6 new changesets
Message-ID: <ee0da621-f079-435e-a806-82c397af37dc@openjdk.org>

Changeset: fc1b2b4e
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-07-13 16:33:19 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/fc1b2b4e13a8c9f42a5eaba2e991b24463385989

8301119: Support for GB18030-2022
8310947: gb18030-2000 not selectable with LANG=zh_CN.GB18030 after JDK-8301119

Co-authored-by: Severin Gehwolf <sgehwolf at openjdk.org>
Reviewed-by: stuefe, sgehwolf
Backport-of: 5c4e744dabcf7785c35168db5d0458ccebfd41e6

! jdk/src/share/classes/sun/nio/cs/AbstractCharsetProvider.java
! jdk/src/share/classes/sun/nio/cs/ext/ExtendedCharsets.java
! jdk/src/share/classes/sun/nio/cs/ext/GB18030.java
! jdk/test/java/nio/charset/Charset/RegisteredCharsets.java
! jdk/test/lib/testlibrary/jdk/testlibrary/Utils.java
! jdk/test/sun/nio/cs/TestGB18030.java
! jdk/test/sun/nio/cs/mapping/CoderTest.java
! jdk/test/sun/nio/cs/mapping/GB18030.b2c
= jdk/test/sun/nio/cs/mapping/GB18030_2000.b2c

Changeset: 34c7b2a5
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-07-13 18:13:50 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/34c7b2a5f72189b3b2ddefd7e3948575c1161325

8298676: Enhanced Look and Feel

Reviewed-by: mbalao, andrew
Backport-of: 5962226cc33de047946aca6522f020c97d663d2f

! jdk/src/share/classes/javax/swing/plaf/synth/SynthLookAndFeel.java
! jdk/src/share/classes/javax/swing/plaf/synth/doc-files/synthFileFormat.html

Changeset: bd28f3dd
Branch: master
Author:    Alexei Voitylov <avoitylov at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-06-16 18:23:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/bd28f3dd3fc43c62c738f0f137df937fbacb1cdf

8300596: Enhance Jar Signature validation

Reviewed-by: yan, mbalao, andrew
Backport-of: a099d8bf015950db7f0b0ca792e4a9dc951a15cf

! jdk/src/share/classes/java/util/jar/JarFile.java
! jdk/src/share/classes/sun/security/tools/jarsigner/Main.java
! jdk/src/share/classes/sun/security/util/SignatureFileVerifier.java

Changeset: ec0818ad
Branch: master
Author:    Martin Balao <mbalao at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-06-08 21:08:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ec0818add7069be2fe3854edd1f3d2d7c8e07746

8304468: Better array usages

Reviewed-by: yan, andrew
Backport-of: cb7cef2b85264c2bd2d00f1c0e5010969aa618d3

! hotspot/src/share/vm/c1/c1_RangeCheckElimination.cpp

Changeset: 50e903b6
Branch: master
Author:    Martin Balao <mbalao at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-04-17 13:37:42 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/50e903b61fadc20fc297aff2cc2295c35be0edde

8305312: Enhanced path handling

Reviewed-by: yan, andrew
Backport-of: cb7cef2b85264c2bd2d00f1c0e5010969aa618d3

! jdk/src/solaris/classes/sun/nio/fs/UnixUriUtils.java

Changeset: 2f3a3c16
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-17 19:26:44 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/2f3a3c16e715cf616b8ec3214f0695466b0b5ad4

Merge jdk8u382-b05

Added tag jdk8u382-b05 for changeset 50e903b61fa



From andrew at openjdk.org  Wed Jun 18 14:03:17 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 18 Jun 2025 14:03:17 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u382-ga for changeset
 50e903b6
Message-ID: <c1d4be0d-ddfc-4222-8b68-21d3c40d5fda@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-07-21 04:03:59 +0000

Added tag jdk8u382-ga for changeset 50e903b61fa
Changeset: 50e903b6
Author:    Martin Balao <mbalao at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-04-17 13:37:42 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/50e903b61fadc20fc297aff2cc2295c35be0edde


From andrew at openjdk.org  Wed Jun 18 14:03:09 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 18 Jun 2025 14:03:09 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u382-b05 for changeset
 50e903b6
Message-ID: <bcb4a25a-6a56-4c5f-98d2-a5c2a345fd7e@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-07-14 07:33:51 +0000

Added tag jdk8u382-b05 for changeset 50e903b61fa
Changeset: 50e903b6
Author:    Martin Balao <mbalao at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-04-17 13:37:42 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/50e903b61fadc20fc297aff2cc2295c35be0edde


From andrew at openjdk.org  Wed Jun 18 14:03:12 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 18 Jun 2025 14:03:12 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u382-b05 for
 changeset 2f3a3c16
Message-ID: <c6ca2f95-9b52-4522-a3d3-e9acdf2ff1eb@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-18 14:44:39 +0000

Added tag shenandoah8u382-b05 for changeset 2f3a3c16e71
Changeset: 2f3a3c16
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-17 19:26:44 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/2f3a3c16e715cf616b8ec3214f0695466b0b5ad4


From andrew at openjdk.org  Wed Jun 18 15:29:13 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 18 Jun 2025 15:29:13 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <-tr9pQsKLoFzgxkA2bPu8cxbn9pYL_o1dGxTvf60I_8=.82c31f49-8c6e-4305-b1b8-64872287dcbd@github.com>

Merge jdk8u392-b01

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

Commit messages:
 - Merge jdk8u392-b01
 - Merge
 - 8301119: Support for GB18030-2022
 - Merge
 - 8310026: [8u] make java_lang_String::hash_code consistent across platforms
 - 8309143: [8u] fix archiving inconsistencies in GHA
 - 8205399: Set node color on pinned HashMap.TreeNode deletion
 - 8200468: Port the native GSS-API bridge to Windows
 - 8139348: Deprecate 3DES and RC4 in Kerberos
 - 8253269: The CheckCommonColors test should provide more info on failure
 - ... and 1 more: https://git.openjdk.org/shenandoah-jdk8u/compare/2f3a3c16...6d26613a

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=52&range=00.0
 - jdk8u:master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=52&range=00.1

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/52/files
  Stats: 1056 lines in 27 files changed: 574 ins; 317 del; 165 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/52.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/52/head:pull/52

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/52

From andrew at openjdk.org  Wed Jun 18 15:53:53 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 18 Jun 2025 15:53:53 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u392-b01 for changeset
 587090dd
Message-ID: <e71025cc-b39a-4e65-a94a-c3b18beda5b1@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-07-31 17:54:58 +0000

Added tag jdk8u392-b01 for changeset 587090ddc17
Changeset: 587090dd
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-07-19 11:51:18 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/587090ddc17c073d56f4d3f52b61f6477d6322b0


From andrew at openjdk.org  Wed Jun 18 15:53:38 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 18 Jun 2025 15:53:38 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 11 new changesets
Message-ID: <1593b895-5900-41c5-aebe-671dec0f7460@openjdk.org>

Changeset: 4923d46b
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-05-31 14:58:29 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/4923d46b6f43f98c9cdc133c7161ab3b629621b0

8309122: Bump update version of OpenJDK: 8u392

Reviewed-by: serb, sgehwolf

! .jcheck/conf
! common/autoconf/version-numbers

Changeset: 1c802b2a
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-05-31 21:49:29 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1c802b2ae8d00bedf425a4fe94f510bd8a616589

8253269: The CheckCommonColors test should provide more info on failure

Backport-of: 1c2754bfe3294fb3c80defe5479bdd85b0d07e29

! jdk/test/java/awt/Robot/CheckCommonColors/CheckCommonColors.java

Changeset: 6244292d
Branch: master
Author:    Ekaterina Vergizova <evergizova at openjdk.org>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-06-02 02:25:17 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/6244292d28e1cddcc70bc4dbf98adad13fe1e3d7

8139348: Deprecate 3DES and RC4 in Kerberos

Reviewed-by: andrew
Backport-of: ded96ddcde1e9e8556a6ce8948acef27b6e192cc

! jdk/src/share/classes/sun/security/krb5/internal/crypto/EType.java
! jdk/test/sun/security/krb5/auto/NewSalt.java
! jdk/test/sun/security/krb5/auto/W83.java
! jdk/test/sun/security/krb5/etype/WeakCrypto.java
- jdk/test/sun/security/krb5/etype/weakcrypto.conf
! jdk/test/sun/security/krb5/tools/ktcheck.sh
! jdk/test/sun/security/krb5/tools/onlythree.conf

Changeset: 09443845
Branch: master
Author:    Alexey Bakhtin <abakhtin at openjdk.org>
Date:      2023-07-03 21:03:18 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/09443845df2ae520e8a3000f889aecf8d621c52c

8200468: Port the native GSS-API bridge to Windows

Reviewed-by: andrew
Backport-of: 0b6fbf50d24438117c33fa1a7d3633b792c99983

! jdk/make/lib/SecurityLibraries.gmk
! jdk/src/share/classes/sun/security/jgss/GSSManagerImpl.java
! jdk/src/share/native/sun/security/jgss/wrapper/GSSLibStub.c
+ jdk/src/share/native/sun/security/jgss/wrapper/NativeFunc.c
= jdk/src/share/native/sun/security/jgss/wrapper/NativeFunc.h
! jdk/src/share/native/sun/security/jgss/wrapper/NativeUtil.c
! jdk/src/share/native/sun/security/jgss/wrapper/NativeUtil.h
! jdk/src/share/native/sun/security/jgss/wrapper/gssapi.h
- jdk/src/solaris/native/sun/security/jgss/wrapper/NativeFunc.c
! jdk/test/java/security/testlibrary/Proc.java
! jdk/test/sun/security/krb5/auto/BasicProc.java

Changeset: a2a68737
Branch: master
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2023-07-07 13:21:29 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/a2a68737d927e7afa6e5c2d2642d8cb42f9d6be9

8205399: Set node color on pinned HashMap.TreeNode deletion

Backport-of: 51d0a9e1223f218d10f8761e38cd2dd478607040

! jdk/src/share/classes/java/util/HashMap.java
+ jdk/test/java/util/HashMap/TreeBinAssert.java

Changeset: 108003eb
Branch: master
Author:    Zdenek Zambersky <zzambers at openjdk.org>
Date:      2023-07-10 11:24:39 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/108003eb378c7b830119bb7ae41d3a40fcd0809e

8309143: [8u] fix archiving inconsistencies in GHA

Reviewed-by: phh, sgehwolf

! .github/workflows/submit.yml

Changeset: 15077ad1
Branch: master
Author:    Zdenek Zambersky <zzambers at openjdk.org>
Date:      2023-07-10 11:44:01 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/15077ad189dc24d7776998f63c2245c3c61ab2bb

8310026: [8u] make java_lang_String::hash_code consistent across platforms

Reviewed-by: phh, adinn, stuefe

! hotspot/agent/src/share/classes/sun/jvm/hotspot/utilities/Hashtable.java
! hotspot/src/share/vm/classfile/javaClasses.hpp
! hotspot/src/share/vm/classfile/symbolTable.cpp

Changeset: e575cb38
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-07-12 11:04:37 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/e575cb38f0ef175d953da19e4413db1926a7ca8f

Merge


Changeset: 4dc1305c
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-07-13 16:33:19 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/4dc1305cafe7913b194e9a8ebc01c49e6dc14a6d

8301119: Support for GB18030-2022
8310947: gb18030-2000 not selectable with LANG=zh_CN.GB18030 after JDK-8301119

Co-authored-by: Severin Gehwolf <sgehwolf at openjdk.org>
Reviewed-by: stuefe, sgehwolf
Backport-of: 5c4e744dabcf7785c35168db5d0458ccebfd41e6

! jdk/src/share/classes/sun/nio/cs/AbstractCharsetProvider.java
! jdk/src/share/classes/sun/nio/cs/ext/ExtendedCharsets.java
! jdk/src/share/classes/sun/nio/cs/ext/GB18030.java
! jdk/test/java/nio/charset/Charset/RegisteredCharsets.java
! jdk/test/lib/testlibrary/jdk/testlibrary/Utils.java
! jdk/test/sun/nio/cs/TestGB18030.java
! jdk/test/sun/nio/cs/mapping/CoderTest.java
! jdk/test/sun/nio/cs/mapping/GB18030.b2c
= jdk/test/sun/nio/cs/mapping/GB18030_2000.b2c

Changeset: 587090dd
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2023-07-19 11:51:18 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/587090ddc17c073d56f4d3f52b61f6477d6322b0

Merge


Changeset: 6d26613a
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-18 16:02:47 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/6d26613a4a33331723cf2628c135aa90ede25f7a

Merge jdk8u392-b01

Added tag jdk8u392-b01 for changeset 587090ddc17

! .jcheck/conf
! hotspot/src/share/vm/classfile/symbolTable.cpp
! .jcheck/conf
! hotspot/src/share/vm/classfile/symbolTable.cpp


From andrew at openjdk.org  Wed Jun 18 15:54:02 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 18 Jun 2025 15:54:02 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u392-b01 for
 changeset 6d26613a
Message-ID: <c69bfd6a-4a62-42ad-af68-494c8fb02be7@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-18 16:05:57 +0000

Added tag shenandoah8u392-b01 for changeset 6d26613a4a3
Changeset: 6d26613a
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-18 16:02:47 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/6d26613a4a33331723cf2628c135aa90ede25f7a


From andrew at openjdk.org  Wed Jun 18 15:54:28 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 18 Jun 2025 15:54:28 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <-tr9pQsKLoFzgxkA2bPu8cxbn9pYL_o1dGxTvf60I_8=.82c31f49-8c6e-4305-b1b8-64872287dcbd@github.com>
References: <-tr9pQsKLoFzgxkA2bPu8cxbn9pYL_o1dGxTvf60I_8=.82c31f49-8c6e-4305-b1b8-64872287dcbd@github.com>
Message-ID: <g4PzOEU2upv7lfFkRk0a5b8QooF6dGAOF3UFTs9uY_k=.32266efe-23c6-449c-b9f3-0c41e6b8ec73@github.com>

> Merge jdk8u392-b01
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/52/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/52/files/6d26613a..6d26613a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=52&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=52&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/52.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/52/head:pull/52

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/52

From iris at openjdk.org  Wed Jun 18 15:54:29 2025
From: iris at openjdk.org (Iris Clark)
Date: Wed, 18 Jun 2025 15:54:29 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <-tr9pQsKLoFzgxkA2bPu8cxbn9pYL_o1dGxTvf60I_8=.82c31f49-8c6e-4305-b1b8-64872287dcbd@github.com>
References: <-tr9pQsKLoFzgxkA2bPu8cxbn9pYL_o1dGxTvf60I_8=.82c31f49-8c6e-4305-b1b8-64872287dcbd@github.com>
Message-ID: <I3JOBc2MKKsybQrhCEZj8ndB0NpbWgIEz8L-ClzH2Kg=.2a72c385-9cc3-4917-ab79-1a7830c909c6@github.com>

On Wed, 18 Jun 2025 15:24:28 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u392-b01
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/52

From kdnilsen at openjdk.org  Wed Jun 18 16:32:08 2025
From: kdnilsen at openjdk.org (Kelvin Nilsen)
Date: Wed, 18 Jun 2025 16:32:08 GMT
Subject: RFR: 8359947: GenShen: use smaller TLABs by default
Message-ID: <1072g2RnSN--eWgcAOHvElE0OI03fCdGJNGIgFNDnOQ=.21aca821-59c9-47b5-b1a2-6214f85dd5d3@github.com>

We have found with certain workloads that the initial and maximum tlab sizes result in very high latencies for the first few invocations of particular methods for certain threads.  The root cause is that TLABs are too large.  This is causing allocatable memory to be depleted too quickly.  When large numbers of threads are trying to startup at the same time, some of the threads end up with no TLABs or very small TLABs and their efforts run hundreds of times slower than the threads that were able to grab very large TLABs.

This PR reduces the maximum TLAB size and adjusts the initial TLAB size in order to reduce the impact of this problem.

This PR also changes the value of TLABAllocationWeight from 90 to 35 when we are running in generational mode.  35 is the default value used for G1 GC, which is also generational.  The default value of 90 was established years ago for non-generational Shenandoah because it tends to have less frequent GC cycles than generational collectors.

We have exercised this PR with three different workloads, which we identify as small, medium, and huge.  We have also exercised in two different configurations: with and without 30s warmup before latency measurements are taken.  Finally, we have applied this PR to both tip and to a development branch identified as adaptive-evac-with-surge.

The initial motivation for this PR was identified during testing of the adaptive-evac-with-surge branch.  That branch runs more aggressive GCs (larger evacuation workloads, with delayed (slightly more risky) triggers.  The objectives of this branch are to make GCs more efficient and to reduce CPU consumption.

We report 6 results for each experiment.  We sort these according to P100 latencies, and average results from the bottom four (best performing) samples, tossing out the two high outliers from the averages.  Workload results are subject to noise from elastic computing and operating system interference.

The benefits of this PR are most notable with the p99.999 and p100 small configuration of adaptive-evac-with-surge and the huge configuration of tip: 

![image](https://github.com/user-attachments/assets/def49a3c-4142-48f7-a946-33527e6985d0)

![image](https://github.com/user-attachments/assets/b0df27b3-f7b0-4fd2-82c3-ac84b0ad380e)

![image](https://github.com/user-attachments/assets/471c1292-96dc-46c1-9bcc-b851be07867d)

Note also the degradation in p50 and other lower percentile latencies.  The effect of this PR is to require each mutator thread to make more frequent allocation of smaller TLABs.  This results in higher contention for Shenandoah's global heap lock.  A separate development effort is refactoring the slow allocation path to use a single CAS for the large majority of TLAB allocations rather than the current mechanism, which requires each TLAB allocation to contend for exclusive access to the global heap lock, then hold the global heap lock during the search for memory to be allocated.  We expect this other mechanism will improve all latencies, and should reduce or eliminate the performance regressions introduced at certain percentiles by this PR.

For full context, other performance comparisons are also provided here.  In the following reports, it is usually the case that the affect of this PR is to reduce the total number of GCs and to reduce the CPU utilization.  Depending on the experiment, low percentile or high percentile response times improve.  We attribute these differences to contention for global heap lock.  We observe also that sometimes warming up an experiment for 30 seconds before beginning to measure latency has a similar effect to improving the initial TLAB size,  as the pre-existing shared heuristics for adaptive TLAB sizing seem to converge fairly quickly on improved behavior, at least for this workload which is fairly consistent.  A more variable workload may struggle more to find the optimal TLAB size.  For such workloads, having smaller default TLAB sizes seems to reduce the likelihood of occasional serious performance degradation.

![image](https://github.com/user-attachments/assets/33205ba0-2ebb-4cfa-96e9-8fecd52d07ab)

![image](https://github.com/user-attachments/assets/1bf49dfc-f673-4371-940f-af76496385fe)

![image](https://github.com/user-attachments/assets/a960d02b-87fe-42bd-9b6d-0232d80d1804)

While both versions of code are clearly overwhelmed for this Medium workload, it is interesting to observe that the PR produces two results that are much better than all six of the control runs.  Better performance and more meaningful comparisons are provided by the adaptive-old-evac-with-surge experiments, shown below.

![image](https://github.com/user-attachments/assets/da83f673-93f5-4712-becf-49c00f5ffe8c)

![image](https://github.com/user-attachments/assets/9f37dd0b-2fbf-4cc9-a1e5-e1b694f125ad)

![image](https://github.com/user-attachments/assets/858b556c-9a44-426e-927f-f6a8d2f249b0)

![image](https://github.com/user-attachments/assets/3e17f4c5-0c5d-4b47-b2ad-6d7504394e31)

![image](https://github.com/user-attachments/assets/2fc79194-244b-4e4d-8547-5fcd02811a69)

The small workload is represented by the following execution script.  Note that we override the default region size in order to avoid out-of-memory-during-evacuation failures that were occurring in the default configuration due to a large number of objects of approximate size 781 KB.

            ~/github/jdk.adjust-initial-tlab-size/build/linux-x86_64-server-release/images/jdk/bin/java \
                -XX:ActiveProcessorCount=2 \
                -XX:+UnlockExperimentalVMOptions \
                -XX:-ShenandoahPacing \
                -XX:+AlwaysPreTouch -XX:+DisableExplicitGC -Xms4g -Xmx4g \
                -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational \
                -XX:ShenandoahFullGCThreshold=1024 \
                -XX:ShenandoahMinRegionSize=4M \
                -Xlog:"gc*=info,ergo" \
                -Xlog:safepoint=trace -Xlog:safepoint=debug -Xlog:safepoint=info \
                -XX:+UnlockDiagnosticVMOptions \
                -jar ~/github/heapothesys.fix-two-bugs/Extremem/src/main/java/extremem.jar \
                -dDictionarySize=3000000 \
                -dNumCustomers=30000 \
                -dNumProducts=30000 \
                -dCustomerThreads=500 \
                -dCustomerPeriod=5s \
                -dCustomerThinkTime=1s \
                -dKeywordSearchCount=1 \
                -dSelectionCriteriaCount=3 \
                -dProductReviewLength=12 \
                -dServerThreads=5 \
                -dServerPeriod=10s \
                -dProductNameLength=10 \
                -dBrowsingHistoryQueueCount=5 \
                -dSalesTransactionQueueCount=5 \
                -dProductDescriptionLength=40 \
                -dProductReplacementPeriod=60s \
                -dProductReplacementCount=25 \
                -dCustomerReplacementPeriod=60s \
                -dCustomerReplacementCount=1500 \
                -dBrowsingExpiration=1m \
                -dPhasedUpdates=true \
                -dPhasedUpdateInterval=180s \
                -dSimulationDuration=25m \
                -dResponseTimeMeasurements=100000 \
                >$t.genshen.MaxRSWby8-TLABisRSBby128.small.overrides.out 2>$t.genshen.MaxRSWby8-TLABisRSBby128.small.overrides.err &
            job_pid=$!
            sleep 1500
            cpu_percent=$(ps -o cputime -o etime -p $job_pid)
            rss_kb=$(ps -o rss= -p $job_pid)
            rss_mb=$((rss_kb / 1024))
            wait $job_pid
            echo "RSS: $rss_mb MB" >>$t.genshen.MaxRSWby32-TLABisRSBby256.small.overrides.out 2>>$t.genshen.MaxRSWby32-TLABisRSBby256.small.overrides.err
            echo "$cpu_percent" >>$t.genshen.MaxRSWby32-TLABisRSBby256.small.overrides.out
            gzip $t.genshen.MaxRSWby32-TLABisRSBby256.small.overrides.out $t.genshen.MaxRSWby32-TLABisRSBby256.small.overrides.err

The medium workload is represented by this execution script:

            ~/github/jdk.adaptive-evac-with-surge/build/linux-x86_64-server-release/images/jdk/bin/java \
                -XX:+UnlockExperimentalVMOptions \
                -XX:-ShenandoahPacing \
                -XX:+AlwaysPreTouch -XX:+DisableExplicitGC -Xms31g -Xmx31g \
                -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational \
                -XX:ShenandoahFullGCThreshold=1024 \
                -XX:ShenandoahGuaranteedOldGCInterval=0 \
                -XX:ShenandoahGuaranteedYoungGCInterval=0 \
                -Xlog:"gc*=info,ergo" \
                -Xlog:safepoint=trace -Xlog:safepoint=debug -Xlog:safepoint=info \
                -XX:+UnlockDiagnosticVMOptions \
                -jar ~/github/heapothesys/Extremem/src/main/java/extremem.jar \
                -dDictionarySize=3000000 \
                -dNumCustomers=3600000 \
                -dNumProducts=320000 \
                -dCustomerThreads=500 \
                -dAllowAnyMatch=false \
                -dCustomerPeriod=5s \
                -dCustomerThinkTime=1s \
                -dKeywordSearchCount=2 \
                -dSelectionCriteriaCount=2 \
                -dProductReviewLength=12 \
                -dServerThreads=5 \
                -dServerPeriod=10s \
                -dProductNameLength=10 \
                -dBrowsingHistoryQueueCount=5 \
                -dSalesTransactionQueueCount=5 \
                -dProductDescriptionLength=512 \
                -dProductReplacementPeriod=60s \
                -dProductReplacementCount=25 \
                -dCustomerReplacementPeriod=60s \
                -dCustomerReplacementCount=1500 \
                -dBrowsingExpiration=1m \
                -dPhasedUpdates=true \
                -dPhasedUpdateInterval=180s \
                -dSimulationDuration=25m \
                -dResponseTimeMeasurements=100000 \
                >$t.retry.genshen.medium.adaptive-evac-with-surge.control.out 2>$t.retry.genshen.medium.adaptive-evac-with-surge.control.err &
            job_pid=$!
            sleep 1500
            cpu_percent=$(ps -o cputime -o etime -p $job_pid)
            rss_kb=$(ps -o rss= -p $job_pid)
            rss_mb=$((rss_kb / 1024))
            wait $job_pid
            echo "RSS: $rss_mb MB" >>$t.retry.genshen.medium.adaptive-evac-with-surge.control.out
            echo "$cpu_percent" >>$t.retry.genshen.medium.adaptive-evac-with-surge.control.out
            gzip $t.retry.genshen.medium.adaptive-evac-with-surge.control.out $t.retry.genshen.medium.adaptive-evac-with-surge.control.err

An additional parameter was added to the adaptive-evac-with-surge configurations, to make the adaptive old GC trigger slightly more sensitive:

                -XX:ShenandoahMinOldGenGrowthHeapPercent=2 \


The huge workload is represented by this execution script:

            ~/github/jdk.adjust-initial-tlab-size/build/linux-x86_64-server-release/images/jdk/bin/java \
                -XX:ActiveProcessorCount=16 \
                -XX:+UnlockExperimentalVMOptions \
                -XX:-ShenandoahPacing \
                -XX:+AlwaysPreTouch -XX:+DisableExplicitGC -Xms512g -Xmx512g \
                -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational \
                -XX:ShenandoahFullGCThreshold=1024 \
                -XX:ShenandoahGuaranteedGCInterval=0 \
                -XX:ShenandoahGuaranteedOldGCInterval=0 \
                -XX:ShenandoahGuaranteedYoungGCInterval=0 \
                -Xlog:"gc*=info,ergo" \
                -Xlog:safepoint=trace -Xlog:safepoint=debug -Xlog:safepoint=info \
                -XX:+UnlockDiagnosticVMOptions \
                -jar ~/github/heapothesys/Extremem/src/main/java/extremem.jar \
                -dDictionarySize=3000000 \
                -dNumCustomers=210000000 \
                -dNumProducts=18000000 \
                -dCustomerThreads=2000 \
                -dCustomerPeriod=2000ms \
                -dCustomerThinkTime=300ms \
                -dKeywordSearchCount=2 \
                -dAllowAnyMatch=false \
                -dSelectionCriteriaCount=3 \
                -dProductReviewLength=96 \
                -dBuyThreshold=0.5 \
                -dSaveForLaterThreshold=0.15 \
                -dBrowsingExpiration=5m \
                -dServerThreads=20 \
                -dServerPeriod=10s \
                -dProductNameLength=6 \
                -dProductDescriptionLength=70 \
                -dBrowsingHistoryQueueCount=1 \
                -dSalesTransactionQueueCount=1 \
                -dProductReplacementPeriod=60s \
                -dProductReplacementCount=25 \
                -dCustomerReplacementPeriod=60s \
                -dCustomerReplacementCount=150 \
                -dBrowsingExpiration=1m \
                -dSimulationDuration=25m \
                -dResponseTimeMeasurements=100000 \
                -dPhasedUpdates=true \
                -dPhasedUpdateInterval=180s \
                >$t.genshen.huge.MaxTLABisRSWby32-TLABisRSBisRSBby256.out 2>$t.genshen.huge.MaxTLABisRSWby32-TLABisRSBisRSBby256.err &
            job_pid=$!
            sleep 3000
            cpu_percent=$(ps -o cputime -o etime -p $job_pid)
            rss_kb=$(ps -o rss= -p $job_pid)
            rss_mb=$((rss_kb / 1024))
            wait $job_pid
            echo "RSS: $rss_kb KB" >>$t.genshen.huge.MaxTLABisRSWby32-TLABisRSBisRSBby256.out
            echo "RSS: $rss_mb MB" >>$t.genshen.huge.MaxTLABisRSWby32-TLABisRSBisRSBby256.out
            echo "$cpu_percent" >>$t.genshen.huge.MaxTLABisRSWby32-TLABisRSBisRSBby256.out
            gzip $t.genshen.huge.MaxTLABisRSWby32-TLABisRSBisRSBby256.out $t.genshen.huge.MaxTLABisRSWby32-TLABisRSBisRSBby256.err

-------------

Commit messages:
 - Fix white space
 - Shrink default TLABSize in half
 - MaxRSWby32-TLABisRSBby128
 - Tidy up for review
 - Merge branch 'adjust-initial-tlab-size' of https://github.com/kdnilsen/jdk into adjust-initial-tlab-size
 - MaxTLABisRSWby1 TLABSisRSBby128 TLABAllocationWeight=35
 - Add constraints for very large heap sizes with MaxTLABisRSWby8 TLABisRSBby128
 - MaxTLABisRSWby1 TLABSisDefault TLABAllocationWeight=90
 - MaxTLABisRSWby1-TLABisDefault
 - MaxTLABisRSWby2 TLABisDefault
 - ... and 40 more: https://git.openjdk.org/jdk/compare/92730945...e8b35937

Changes: https://git.openjdk.org/jdk/pull/25423/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25423&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8359947
  Stats: 18 lines in 3 files changed: 12 ins; 0 del; 6 mod
  Patch: https://git.openjdk.org/jdk/pull/25423.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25423/head:pull/25423

PR: https://git.openjdk.org/jdk/pull/25423

From kdnilsen at openjdk.org  Wed Jun 18 16:32:08 2025
From: kdnilsen at openjdk.org (Kelvin Nilsen)
Date: Wed, 18 Jun 2025 16:32:08 GMT
Subject: RFR: 8359947: GenShen: use smaller TLABs by default
In-Reply-To: <1072g2RnSN--eWgcAOHvElE0OI03fCdGJNGIgFNDnOQ=.21aca821-59c9-47b5-b1a2-6214f85dd5d3@github.com>
References: <1072g2RnSN--eWgcAOHvElE0OI03fCdGJNGIgFNDnOQ=.21aca821-59c9-47b5-b1a2-6214f85dd5d3@github.com>
Message-ID: <raXynItTdzpSVZ2-onLf5xLqH5X6Rt7dcLCKFhW7vaM=.ee0c3839-eb31-4fd4-928f-9573e050b5b3@github.com>

On Fri, 23 May 2025 20:13:21 GMT, Kelvin Nilsen <kdnilsen at openjdk.org> wrote:

> We have found with certain workloads that the initial and maximum tlab sizes result in very high latencies for the first few invocations of particular methods for certain threads.  The root cause is that TLABs are too large.  This is causing allocatable memory to be depleted too quickly.  When large numbers of threads are trying to startup at the same time, some of the threads end up with no TLABs or very small TLABs and their efforts run hundreds of times slower than the threads that were able to grab very large TLABs.
> 
> This PR reduces the maximum TLAB size and adjusts the initial TLAB size in order to reduce the impact of this problem.
> 
> This PR also changes the value of TLABAllocationWeight from 90 to 35 when we are running in generational mode.  35 is the default value used for G1 GC, which is also generational.  The default value of 90 was established years ago for non-generational Shenandoah because it tends to have less frequent GC cycles than generational collectors.
> 
> We have exercised this PR with three different workloads, which we identify as small, medium, and huge.  We have also exercised in two different configurations: with and without 30s warmup before latency measurements are taken.  Finally, we have applied this PR to both tip and to a development branch identified as adaptive-evac-with-surge.
> 
> The initial motivation for this PR was identified during testing of the adaptive-evac-with-surge branch.  That branch runs more aggressive GCs (larger evacuation workloads, with delayed (slightly more risky) triggers.  The objectives of this branch are to make GCs more efficient and to reduce CPU consumption.
> 
> We report 6 results for each experiment.  We sort these according to P100 latencies, and average results from the bottom four (best performing) samples, tossing out the two high outliers from the averages.  Workload results are subject to noise from elastic computing and operating system interference.
> 
> The benefits of this PR are most notable with the p99.999 and p100 small configuration of adaptive-evac-with-surge and the huge configuration of tip: 
> 
> ![image](https://github.com/user-attachments/assets/def49a3c-4142-48f7-a946-33527e6985d0)
> 
> ![image](https://github.com/user-attachments/assets/b0df27b3-f7b0-4fd2-82c3-ac84b0ad380e)
> 
> ![image](https://github.com/user-attachments/assets/471c1292-96dc-46c1-9bcc-b851be07867d)
> 
> Note also the degradation in p50 and other lower percentile latencies.  The effect of this PR is to require each mutator threa...

Leaving this in draft while I prepare details for review.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25423#issuecomment-2905742286

From kdnilsen at openjdk.org  Wed Jun 18 16:38:45 2025
From: kdnilsen at openjdk.org (Kelvin Nilsen)
Date: Wed, 18 Jun 2025 16:38:45 GMT
Subject: RFR: 8359947: GenShen: use smaller TLABs by default [v2]
In-Reply-To: <1072g2RnSN--eWgcAOHvElE0OI03fCdGJNGIgFNDnOQ=.21aca821-59c9-47b5-b1a2-6214f85dd5d3@github.com>
References: <1072g2RnSN--eWgcAOHvElE0OI03fCdGJNGIgFNDnOQ=.21aca821-59c9-47b5-b1a2-6214f85dd5d3@github.com>
Message-ID: <OJQ02dgxpoTaEpKihIvDOjqMmx5L3Z7NYQjeWS7eLoU=.4d420240-25b3-4cfb-8876-9f3d2b4a2ac6@github.com>

> We have found with certain workloads that the initial and maximum tlab sizes result in very high latencies for the first few invocations of particular methods for certain threads.  The root cause is that TLABs are too large.  This is causing allocatable memory to be depleted too quickly.  When large numbers of threads are trying to startup at the same time, some of the threads end up with no TLABs or very small TLABs and their efforts run hundreds of times slower than the threads that were able to grab very large TLABs.
> 
> This PR reduces the maximum TLAB size and adjusts the initial TLAB size in order to reduce the impact of this problem.
> 
> This PR also changes the value of TLABAllocationWeight from 90 to 35 when we are running in generational mode.  35 is the default value used for G1 GC, which is also generational.  The default value of 90 was established years ago for non-generational Shenandoah because it tends to have less frequent GC cycles than generational collectors.
> 
> We have exercised this PR with three different workloads, which we identify as small, medium, and huge.  We have also exercised in two different configurations: with and without 30s warmup before latency measurements are taken.  Finally, we have applied this PR to both tip and to a development branch identified as adaptive-evac-with-surge.
> 
> The initial motivation for this PR was identified during testing of the adaptive-evac-with-surge branch.  That branch runs more aggressive GCs (larger evacuation workloads, with delayed (slightly more risky) triggers.  The objectives of this branch are to make GCs more efficient and to reduce CPU consumption.
> 
> We report 6 results for each experiment.  We sort these according to P100 latencies, and average results from the bottom four (best performing) samples, tossing out the two high outliers from the averages.  Workload results are subject to noise from elastic computing and operating system interference.
> 
> The benefits of this PR are most notable with the p99.999 and p100 small configuration of adaptive-evac-with-surge and the huge configuration of tip: 
> 
> ![image](https://github.com/user-attachments/assets/def49a3c-4142-48f7-a946-33527e6985d0)
> 
> ![image](https://github.com/user-attachments/assets/b0df27b3-f7b0-4fd2-82c3-ac84b0ad380e)
> 
> ![image](https://github.com/user-attachments/assets/471c1292-96dc-46c1-9bcc-b851be07867d)
> 
> Note also the degradation in p50 and other lower percentile latencies.  The effect of this PR is to require each mutator threa...

Kelvin Nilsen has updated the pull request incrementally with one additional commit since the last revision:

  Remove debug instrumentation

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25423/files
  - new: https://git.openjdk.org/jdk/pull/25423/files/e8b35937..456ee6e3

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25423&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25423&range=00-01

  Stats: 5 lines in 1 file changed: 0 ins; 5 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/25423.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25423/head:pull/25423

PR: https://git.openjdk.org/jdk/pull/25423

From phh at openjdk.org  Wed Jun 18 16:42:32 2025
From: phh at openjdk.org (Paul Hohensee)
Date: Wed, 18 Jun 2025 16:42:32 GMT
Subject: RFR: 8359947: GenShen: use smaller TLABs by default [v2]
In-Reply-To: <OJQ02dgxpoTaEpKihIvDOjqMmx5L3Z7NYQjeWS7eLoU=.4d420240-25b3-4cfb-8876-9f3d2b4a2ac6@github.com>
References: <1072g2RnSN--eWgcAOHvElE0OI03fCdGJNGIgFNDnOQ=.21aca821-59c9-47b5-b1a2-6214f85dd5d3@github.com>
 <OJQ02dgxpoTaEpKihIvDOjqMmx5L3Z7NYQjeWS7eLoU=.4d420240-25b3-4cfb-8876-9f3d2b4a2ac6@github.com>
Message-ID: <aEuXKbknfljqyUB8caxYl90rjjc-peOcXQEa_OrjWqw=.06e0b963-8b53-4462-8fcc-d4edd32457e7@github.com>

On Wed, 18 Jun 2025 16:38:45 GMT, Kelvin Nilsen <kdnilsen at openjdk.org> wrote:

>> We have found with certain workloads that the initial and maximum tlab sizes result in very high latencies for the first few invocations of particular methods for certain threads.  The root cause is that TLABs are too large.  This is causing allocatable memory to be depleted too quickly.  When large numbers of threads are trying to startup at the same time, some of the threads end up with no TLABs or very small TLABs and their efforts run hundreds of times slower than the threads that were able to grab very large TLABs.
>> 
>> This PR reduces the maximum TLAB size and adjusts the initial TLAB size in order to reduce the impact of this problem.
>> 
>> This PR also changes the value of TLABAllocationWeight from 90 to 35 when we are running in generational mode.  35 is the default value used for G1 GC, which is also generational.  The default value of 90 was established years ago for non-generational Shenandoah because it tends to have less frequent GC cycles than generational collectors.
>> 
>> We have exercised this PR with three different workloads, which we identify as small, medium, and huge.  We have also exercised in two different configurations: with and without 30s warmup before latency measurements are taken.  Finally, we have applied this PR to both tip and to a development branch identified as adaptive-evac-with-surge.
>> 
>> The initial motivation for this PR was identified during testing of the adaptive-evac-with-surge branch.  That branch runs more aggressive GCs (larger evacuation workloads, with delayed (slightly more risky) triggers.  The objectives of this branch are to make GCs more efficient and to reduce CPU consumption.
>> 
>> We report 6 results for each experiment.  We sort these according to P100 latencies, and average results from the bottom four (best performing) samples, tossing out the two high outliers from the averages.  Workload results are subject to noise from elastic computing and operating system interference.
>> 
>> The benefits of this PR are most notable with the p99.999 and p100 small configuration of adaptive-evac-with-surge and the huge configuration of tip: 
>> 
>> ![image](https://github.com/user-attachments/assets/def49a3c-4142-48f7-a946-33527e6985d0)
>> 
>> ![image](https://github.com/user-attachments/assets/b0df27b3-f7b0-4fd2-82c3-ac84b0ad380e)
>> 
>> ![image](https://github.com/user-attachments/assets/471c1292-96dc-46c1-9bcc-b851be07867d)
>> 
>> Note also the degradation in p50 and other lower percentile latencies.  The effect o...
>
> Kelvin Nilsen has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Remove debug instrumentation

What's the rationale for using a fraction of the region size as a possible maximum TLAB size? Region size seems unrelated to thread object allocation demand.

-------------

PR Review: https://git.openjdk.org/jdk/pull/25423#pullrequestreview-2939988648

From andrew at openjdk.org  Wed Jun 18 16:43:53 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Wed, 18 Jun 2025 16:43:53 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <NRIPX7Ew0diW2sruuFBNcCLNc3J_DDvJt95bsNB4Nl0=.4eab865e-7706-4a14-a77e-715bf0c71bf7@github.com>

Merge jdk8u392-b02

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

Commit messages:
 - Merge jdk8u392-b02
 - 6722928: Provide a default native GSS-API library on Windows
 - 8287073: NPE from CgroupV2Subsystem.getInstance()
 - 8308788: [8u] Remove duplicate HaricaCA.java test
 - 8232225: Rework the fix for JDK-8071483
 - 8219804: java/net/MulticastSocket/Promiscuous.java fails intermittently due to NumberFormatException
 - 8040887: [TESTBUG] Remove test/runtime/6925573/SortMethodsTest.java
 - 8214046: [macosx] Undecorated Frame does not Iconify when set to

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/53/files
  Stats: 2280 lines in 20 files changed: 1646 ins; 526 del; 108 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/53.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/53/head:pull/53

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/53

From kdnilsen at openjdk.org  Wed Jun 18 16:52:33 2025
From: kdnilsen at openjdk.org (Kelvin Nilsen)
Date: Wed, 18 Jun 2025 16:52:33 GMT
Subject: RFR: 8359947: GenShen: use smaller TLABs by default [v2]
In-Reply-To: <aEuXKbknfljqyUB8caxYl90rjjc-peOcXQEa_OrjWqw=.06e0b963-8b53-4462-8fcc-d4edd32457e7@github.com>
References: <1072g2RnSN--eWgcAOHvElE0OI03fCdGJNGIgFNDnOQ=.21aca821-59c9-47b5-b1a2-6214f85dd5d3@github.com>
 <OJQ02dgxpoTaEpKihIvDOjqMmx5L3Z7NYQjeWS7eLoU=.4d420240-25b3-4cfb-8876-9f3d2b4a2ac6@github.com>
 <aEuXKbknfljqyUB8caxYl90rjjc-peOcXQEa_OrjWqw=.06e0b963-8b53-4462-8fcc-d4edd32457e7@github.com>
Message-ID: <l67qHg9KGuXMP9m-RRrXGvBslzhQheQSMxX0WNN7fo4=.45061258-6905-42b4-89b9-46de3b40de2e@github.com>

On Wed, 18 Jun 2025 16:39:42 GMT, Paul Hohensee <phh at openjdk.org> wrote:

> What's the rationale for using a fraction of the region size as a possible maximum TLAB size? Region size seems unrelated to thread object allocation demand.

Region size is generally proportional to total heap size.  If we have larger heap sizes, we have more abundant memory, and can generally afford to be "slightly" more generous in apportionment of memory between threads.  But we do this within limits.

The initial TLAB size is never made smaller than 32KB and the max TLAB size is never made larger than 256KB.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25423#issuecomment-2985016769

From phh at openjdk.org  Wed Jun 18 17:58:33 2025
From: phh at openjdk.org (Paul Hohensee)
Date: Wed, 18 Jun 2025 17:58:33 GMT
Subject: RFR: 8359947: GenShen: use smaller TLABs by default [v2]
In-Reply-To: <OJQ02dgxpoTaEpKihIvDOjqMmx5L3Z7NYQjeWS7eLoU=.4d420240-25b3-4cfb-8876-9f3d2b4a2ac6@github.com>
References: <1072g2RnSN--eWgcAOHvElE0OI03fCdGJNGIgFNDnOQ=.21aca821-59c9-47b5-b1a2-6214f85dd5d3@github.com>
 <OJQ02dgxpoTaEpKihIvDOjqMmx5L3Z7NYQjeWS7eLoU=.4d420240-25b3-4cfb-8876-9f3d2b4a2ac6@github.com>
Message-ID: <OUB0wWrCxSkmEbFGQCMy_zNEp6TT4gi75dmzqehwh3g=.812f80b0-270f-4961-ab6e-7739f2818ccc@github.com>

On Wed, 18 Jun 2025 16:38:45 GMT, Kelvin Nilsen <kdnilsen at openjdk.org> wrote:

>> We have found with certain workloads that the initial and maximum tlab sizes result in very high latencies for the first few invocations of particular methods for certain threads.  The root cause is that TLABs are too large.  This is causing allocatable memory to be depleted too quickly.  When large numbers of threads are trying to startup at the same time, some of the threads end up with no TLABs or very small TLABs and their efforts run hundreds of times slower than the threads that were able to grab very large TLABs.
>> 
>> This PR reduces the maximum TLAB size and adjusts the initial TLAB size in order to reduce the impact of this problem.
>> 
>> This PR also changes the value of TLABAllocationWeight from 90 to 35 when we are running in generational mode.  35 is the default value used for G1 GC, which is also generational.  The default value of 90 was established years ago for non-generational Shenandoah because it tends to have less frequent GC cycles than generational collectors.
>> 
>> We have exercised this PR with three different workloads, which we identify as small, medium, and huge.  We have also exercised in two different configurations: with and without 30s warmup before latency measurements are taken.  Finally, we have applied this PR to both tip and to a development branch identified as adaptive-evac-with-surge.
>> 
>> The initial motivation for this PR was identified during testing of the adaptive-evac-with-surge branch.  That branch runs more aggressive GCs (larger evacuation workloads, with delayed (slightly more risky) triggers).  The objectives of this branch are to make GCs more efficient and to reduce CPU consumption.
>> 
>> We report 6 results for each experiment.  We sort these according to P100 latencies, and average results from the bottom four (best performing) samples, tossing out the two high outliers from the averages.  Workload results are subject to noise from elastic computing and operating system interference.
>> 
>> The benefits of this PR are most notable with the p99.999 and p100 small configuration of adaptive-evac-with-surge and the huge configuration of tip: 
>> 
>> ![image](https://github.com/user-attachments/assets/def49a3c-4142-48f7-a946-33527e6985d0)
>> 
>> ![image](https://github.com/user-attachments/assets/b0df27b3-f7b0-4fd2-82c3-ac84b0ad380e)
>> 
>> ![image](https://github.com/user-attachments/assets/471c1292-96dc-46c1-9bcc-b851be07867d)
>> 
>> Note also the degradation in p50 and other lower percentile latencies.  The effect ...
>
> Kelvin Nilsen has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Remove debug instrumentation

Ok, makes sense.

-------------

Marked as reviewed by phh (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25423#pullrequestreview-2940191050

From xpeng at openjdk.org  Wed Jun 18 18:46:40 2025
From: xpeng at openjdk.org (Xiaolong Peng)
Date: Wed, 18 Jun 2025 18:46:40 GMT
Subject: RFR: 8359947: GenShen: use smaller TLABs by default [v2]
In-Reply-To: <OJQ02dgxpoTaEpKihIvDOjqMmx5L3Z7NYQjeWS7eLoU=.4d420240-25b3-4cfb-8876-9f3d2b4a2ac6@github.com>
References: <1072g2RnSN--eWgcAOHvElE0OI03fCdGJNGIgFNDnOQ=.21aca821-59c9-47b5-b1a2-6214f85dd5d3@github.com>
 <OJQ02dgxpoTaEpKihIvDOjqMmx5L3Z7NYQjeWS7eLoU=.4d420240-25b3-4cfb-8876-9f3d2b4a2ac6@github.com>
Message-ID: <KNg4sjnPlAVe7nKD6Uh91JrMQPSLblM7o_hBT-5FHew=.fabc848a-469c-4650-931d-378198695098@github.com>

On Wed, 18 Jun 2025 16:38:45 GMT, Kelvin Nilsen <kdnilsen at openjdk.org> wrote:

>> We have found with certain workloads that the initial and maximum tlab sizes result in very high latencies for the first few invocations of particular methods for certain threads.  The root cause is that TLABs are too large.  This is causing allocatable memory to be depleted too quickly.  When large numbers of threads are trying to startup at the same time, some of the threads end up with no TLABs or very small TLABs and their efforts run hundreds of times slower than the threads that were able to grab very large TLABs.
>> 
>> This PR reduces the maximum TLAB size and adjusts the initial TLAB size in order to reduce the impact of this problem.
>> 
>> This PR also changes the value of TLABAllocationWeight from 90 to 35 when we are running in generational mode.  35 is the default value used for G1 GC, which is also generational.  The default value of 90 was established years ago for non-generational Shenandoah because it tends to have less frequent GC cycles than generational collectors.
>> 
>> We have exercised this PR with three different workloads, which we identify as small, medium, and huge.  We have also exercised in two different configurations: with and without 30s warmup before latency measurements are taken.  Finally, we have applied this PR to both tip and to a development branch identified as adaptive-evac-with-surge.
>> 
>> The initial motivation for this PR was identified during testing of the adaptive-evac-with-surge branch.  That branch runs more aggressive GCs (larger evacuation workloads, with delayed (slightly more risky) triggers).  The objectives of this branch are to make GCs more efficient and to reduce CPU consumption.
>> 
>> We report 6 results for each experiment.  We sort these according to P100 latencies, and average results from the bottom four (best performing) samples, tossing out the two high outliers from the averages.  Workload results are subject to noise from elastic computing and operating system interference.
>> 
>> The benefits of this PR are most notable with the p99.999 and p100 small configuration of adaptive-evac-with-surge and the huge configuration of tip: 
>> 
>> ![image](https://github.com/user-attachments/assets/def49a3c-4142-48f7-a946-33527e6985d0)
>> 
>> ![image](https://github.com/user-attachments/assets/b0df27b3-f7b0-4fd2-82c3-ac84b0ad380e)
>> 
>> ![image](https://github.com/user-attachments/assets/471c1292-96dc-46c1-9bcc-b851be07867d)
>> 
>> Note also the degradation in p50 and other lower percentile latencies.  The effect ...
>
> Kelvin Nilsen has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Remove debug instrumentation

Looks good to me! 
Smaller tlab will result more contention on heap lock in the slow path to allocate tlab, the task I am working on to use CAS may help to mitigate.

-------------

Marked as reviewed by xpeng (Committer).

PR Review: https://git.openjdk.org/jdk/pull/25423#pullrequestreview-2940310161

From mdoerr at openjdk.org  Wed Jun 18 19:59:29 2025
From: mdoerr at openjdk.org (Martin Doerr)
Date: Wed, 18 Jun 2025 19:59:29 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v8]
In-Reply-To: <2gdPUDg-i40xRoO8LZPWszL2-oa6s7GNZEDRfHfDk8s=.4dbfe74a-070b-46c1-b73d-0292824d02e9@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <2gdPUDg-i40xRoO8LZPWszL2-oa6s7GNZEDRfHfDk8s=.4dbfe74a-070b-46c1-b73d-0292824d02e9@github.com>
Message-ID: <7dqmRsrYN1O1zVQSYvFbVpmjSSABHnw7dL8QXSkrOtE=.eceed621-7482-436e-a999-73b6d2611616@github.com>

On Tue, 17 Jun 2025 20:59:46 GMT, Dean Long <dlong at openjdk.org> wrote:

>> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
>> 
>> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
>> 
>> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
>> 
>> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
>> 
>> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.
>
> Dean Long has updated the pull request incrementally with one additional commit since the last revision:
> 
>   2nd try at arm fix

Unfortunately, there's a merge conflict, now.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25764#issuecomment-2985526434

From mdoerr at openjdk.org  Wed Jun 18 19:59:30 2025
From: mdoerr at openjdk.org (Martin Doerr)
Date: Wed, 18 Jun 2025 19:59:30 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <KD4P0rdcNlK59MHt8wQVFgWzyLATB0y85kpCWlzWGRU=.a4b3d5d3-85e2-4691-8cc8-874b679058a2@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
 <ENAa5ub1BOWT5p9ag_BQ4j8NYmjODwJKwGoobXt4j0Y=.b597446f-e654-4083-bf6a-29c3eee0560c@github.com>
 <fpMEJ1QMx9Gwi2hColGPHea1w7wWdBmtZ5gVEissNHs=.4da2e5ad-71e5-4ae5-9dc3-5ebf8bdd0669@github.com>
 <KD4P0rdcNlK59MHt8wQVFgWzyLATB0y85kpCWlzWGRU=.a4b3d5d3-85e2-4691-8cc8-874b679058a2@github.com>
Message-ID: <d3WpH2Wv-eGVMwG_uUJtTHdeljdIGauAA_x9cynsmVU=.91689b27-840b-4dc4-a0a0-6d48529868c4@github.com>

On Wed, 18 Jun 2025 11:34:02 GMT, Erik ?sterlund <eosterlund at openjdk.org> wrote:

>> If I understand your concern correctly, there is no race.  The only caller of BarrierSetNMethod::make_not_entrant() is nmethod::make_not_entrant(), and it is done inside a NMethodState_lock critical section.  After a call to nmethod::make_not_entrant(), the nmethod entry barrier is armed and stays that way.
>> And by design, a disarm only disarms at the inner nmethod_entry_barrier level, not the outer nmethod_stub_entry_barrier level.
>
> My concern is that while thread 1 calls nmethod::make_not_entrant(), thread 2 racingly performs nmethod entry barrier; it makes the is_not_entrant check before it gets updated, but then it gets updated as the per nmethod lock is taken. The GC code "disarms" the GC barrier but in doing so finds that "oh this should be not entrant", but that's sort of not reflected as thread 2 will then proceed with entering the nmethod it just armed as not entrant in the nmethod entry barrier code.
> Does that make sense?

Doesn't the old code have the same limitation? If thread 1 patches the entry point after thread 2 has executed the first instruction, thread 2 will be inside the nmethod if GC has disarmed the nmethod entry barrier.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/25764#discussion_r2155390909

From eosterlund at openjdk.org  Wed Jun 18 20:28:29 2025
From: eosterlund at openjdk.org (Erik =?UTF-8?B?w5ZzdGVybHVuZA==?=)
Date: Wed, 18 Jun 2025 20:28:29 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <d3WpH2Wv-eGVMwG_uUJtTHdeljdIGauAA_x9cynsmVU=.91689b27-840b-4dc4-a0a0-6d48529868c4@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
 <ENAa5ub1BOWT5p9ag_BQ4j8NYmjODwJKwGoobXt4j0Y=.b597446f-e654-4083-bf6a-29c3eee0560c@github.com>
 <fpMEJ1QMx9Gwi2hColGPHea1w7wWdBmtZ5gVEissNHs=.4da2e5ad-71e5-4ae5-9dc3-5ebf8bdd0669@github.com>
 <KD4P0rdcNlK59MHt8wQVFgWzyLATB0y85kpCWlzWGRU=.a4b3d5d3-85e2-4691-8cc8-874b679058a2@github.com>
 <d3WpH2Wv-eGVMwG_uUJtTHdeljdIGauAA_x9cynsmVU=.91689b27-840b-4dc4-a0a0-6d48529868c4@github.com>
Message-ID: <S_WVqyvsvxDSez9c0syZRE2cr8kQ1yeSOs9w4zBEWAY=.23eec805-97e0-4982-8417-6f0114646fbb@github.com>

On Wed, 18 Jun 2025 19:56:27 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

>> My concern is that while thread 1 calls nmethod::make_not_entrant(), thread 2 racingly performs nmethod entry barrier; it makes the is_not_entrant check before it gets updated, but then it gets updated as the per nmethod lock is taken. The GC code "disarms" the GC barrier but in doing so finds that "oh this should be not entrant", but that's sort of not reflected as thread 2 will then proceed with entering the nmethod it just armed as not entrant in the nmethod entry barrier code.
>> Does that make sense?
>
> Doesn't the old code have the same limitation? If thread 1 patches the entry point after thread 2 has executed the first instruction, thread 2 will be inside the nmethod if GC has disarmed the nmethod entry barrier.

Well, yeah sort of. And hence the comment that it's probably fine in terms of correctness. They were also a bit more independent systems then though. Just thought that if we now take the step to merge compiler and GC entry trap mechanisms into the nmethod entry barrier, that we could seemingly also make it a bit less slippery here and establish some sort of invariant that if we while holding the lock protecting the entry barrier find that the nmethod entry barrier is not entrant, for whatever reason, we should not enter it. Would make it easier to understand the code I suspect. What do you think?

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/25764#discussion_r2155434971

From dlong at openjdk.org  Thu Jun 19 00:22:30 2025
From: dlong at openjdk.org (Dean Long)
Date: Thu, 19 Jun 2025 00:22:30 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v4]
In-Reply-To: <S_WVqyvsvxDSez9c0syZRE2cr8kQ1yeSOs9w4zBEWAY=.23eec805-97e0-4982-8417-6f0114646fbb@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <QZevAMdLIuBAlx9cyx8w7hUSk6Txz5Mo6C63gQur6pc=.86a4ee03-5665-4f42-bedb-1bee8037ddfe@github.com>
 <ENAa5ub1BOWT5p9ag_BQ4j8NYmjODwJKwGoobXt4j0Y=.b597446f-e654-4083-bf6a-29c3eee0560c@github.com>
 <fpMEJ1QMx9Gwi2hColGPHea1w7wWdBmtZ5gVEissNHs=.4da2e5ad-71e5-4ae5-9dc3-5ebf8bdd0669@github.com>
 <KD4P0rdcNlK59MHt8wQVFgWzyLATB0y85kpCWlzWGRU=.a4b3d5d3-85e2-4691-8cc8-874b679058a2@github.com>
 <d3WpH2Wv-eGVMwG_uUJtTHdeljdIGauAA_x9cynsmVU=.91689b27-840b-4dc4-a0a0-6d48529868c4@github.com>
 <S_WVqyvsvxDSez9c0syZRE2cr8kQ1yeSOs9w4zBEWAY=.23eec805-97e0-4982-8417-6f0114646fbb@github.com>
Message-ID: <NDd13XSxcbkLkY1hPDt7hlRUAo_3zlHikMaBpAHy8po=.c399c3e1-df5e-4ea8-a667-68d12bac991a@github.com>

On Wed, 18 Jun 2025 20:25:44 GMT, Erik ?sterlund <eosterlund at openjdk.org> wrote:

>> Doesn't the old code have the same limitation? If thread 1 patches the entry point after thread 2 has executed the first instruction, thread 2 will be inside the nmethod if GC has disarmed the nmethod entry barrier.
>
> Well, yeah sort of. And hence the comment that it's probably fine in terms of correctness. They were also a bit more independent systems then though. Just thought that if we now take the step to merge compiler and GC entry trap mechanisms into the nmethod entry barrier, that we could seemingly also make it a bit less slippery here and establish some sort of invariant that if we while holding the lock protecting the entry barrier find that the nmethod entry barrier is not entrant, for whatever reason, we should not enter it. Would make it easier to understand the code I suspect. What do you think?

I think making it less slippery in one place but still leaving other races gives a false sense of security and makes the code harder to understand.  Arming the barrier is not guaranteed to be visible until there is a safepoint.  Note that AArch64 and RISCV only call increment_patching_epoch() when the guard value is set to the disarmed value, so there is no invalidation of the CPU pipeline or instruction buffer (cross modification fence) when arming.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/25764#discussion_r2155757120

From wkemper at openjdk.org  Thu Jun 19 14:29:38 2025
From: wkemper at openjdk.org (William Kemper)
Date: Thu, 19 Jun 2025 14:29:38 GMT
Subject: RFR: Merge openjdk/jdk21u:master
Message-ID: <UBzkKiI-TjZaC7JN1H9G836nlbyho0aZAdc8kx_8j78=.e1ad0b51-05c6-4f2a-bec1-09125160a529@github.com>

Merges tag jdk-21.0.8+7

-------------

Commit messages:
 - 8359170: Add 2 TLS and 2 CS Sectigo roots

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk21u/pull/199/files
  Stats: 479 lines in 7 files changed: 475 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/shenandoah-jdk21u/pull/199.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk21u.git pull/199/head:pull/199

PR: https://git.openjdk.org/shenandoah-jdk21u/pull/199

From wkemper at openjdk.org  Thu Jun 19 18:32:41 2025
From: wkemper at openjdk.org (William Kemper)
Date: Thu, 19 Jun 2025 18:32:41 GMT
Subject: RFR: Merge openjdk/jdk21u:master [v2]
In-Reply-To: <UBzkKiI-TjZaC7JN1H9G836nlbyho0aZAdc8kx_8j78=.e1ad0b51-05c6-4f2a-bec1-09125160a529@github.com>
References: <UBzkKiI-TjZaC7JN1H9G836nlbyho0aZAdc8kx_8j78=.e1ad0b51-05c6-4f2a-bec1-09125160a529@github.com>
Message-ID: <A9ZBE0_pUQq1sWUR6D_PfvPEKvSL-tY0Lf1CLiyA-f0=.1306a303-8018-45c0-b1de-c049f250c9e3@github.com>

> Merges tag jdk-21.0.8+7

William Kemper has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk21u/pull/199/files
  - new: https://git.openjdk.org/shenandoah-jdk21u/pull/199/files/f4b3a70f..f4b3a70f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk21u&pr=199&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk21u&pr=199&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk21u/pull/199.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk21u.git pull/199/head:pull/199

PR: https://git.openjdk.org/shenandoah-jdk21u/pull/199

From wkemper at openjdk.org  Thu Jun 19 18:32:42 2025
From: wkemper at openjdk.org (William Kemper)
Date: Thu, 19 Jun 2025 18:32:42 GMT
Subject: Integrated: Merge openjdk/jdk21u:master
In-Reply-To: <UBzkKiI-TjZaC7JN1H9G836nlbyho0aZAdc8kx_8j78=.e1ad0b51-05c6-4f2a-bec1-09125160a529@github.com>
References: <UBzkKiI-TjZaC7JN1H9G836nlbyho0aZAdc8kx_8j78=.e1ad0b51-05c6-4f2a-bec1-09125160a529@github.com>
Message-ID: <JpPsjyo62U9mg8n-4AUP1dp4EOAaM8ugZ4yWFj0Kge8=.dc0beb02-9f59-4683-8d01-5a4d8b23ca36@github.com>

On Thu, 19 Jun 2025 14:23:15 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Merges tag jdk-21.0.8+7

This pull request has now been integrated.

Changeset: 707e2b95
Author:    William Kemper <wkemper at openjdk.org>
URL:       https://git.openjdk.org/shenandoah-jdk21u/commit/707e2b95c3be8e9ba5ce28784ec4ec40969fce5b
Stats:     479 lines in 7 files changed: 475 ins; 0 del; 4 mod

Merge

-------------

PR: https://git.openjdk.org/shenandoah-jdk21u/pull/199

From shade at openjdk.org  Thu Jun 19 18:39:29 2025
From: shade at openjdk.org (Aleksey Shipilev)
Date: Thu, 19 Jun 2025 18:39:29 GMT
Subject: RFR: 8359394: GC cause cleanup
In-Reply-To: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>
References: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>
Message-ID: <wSRFrJfHBRVvxn51Uckbi8fpOyX4AmTNMUw07r6HNls=.3d686422-fd26-4243-bf31-ee1713fa5e44@github.com>

On Thu, 12 Jun 2025 23:42:41 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Remove `GCCause::_no_cause_specified` (only referenced by Shenandoah) and add a case for `_shenandoah_humongous_allocation_failure` in `GCCause::to_string` and the `SA` analog.

Marked as reviewed by shade (Reviewer).

-------------

PR Review: https://git.openjdk.org/jdk/pull/25789#pullrequestreview-2943805126

From wkemper at openjdk.org  Thu Jun 19 18:43:33 2025
From: wkemper at openjdk.org (William Kemper)
Date: Thu, 19 Jun 2025 18:43:33 GMT
Subject: Integrated: 8359394: GC cause cleanup
In-Reply-To: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>
References: <qD6-lm4j1SOtcjH1auGnO7Eu5PlODBWykO1VK50IZAw=.e7316073-e22c-42fc-9536-f200fde971eb@github.com>
Message-ID: <tltsW_Y2YhEcfVzMCCvzzqxKhjtB9fLYBmbNf2eDvNk=.437cb104-0b1d-4050-b832-b1990708e81b@github.com>

On Thu, 12 Jun 2025 23:42:41 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Remove `GCCause::_no_cause_specified` (only referenced by Shenandoah) and add a case for `_shenandoah_humongous_allocation_failure` in `GCCause::to_string` and the `SA` analog.

This pull request has now been integrated.

Changeset: dec42beb
Author:    William Kemper <wkemper at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/dec42bebb836b2ea244dc19a5964dac828791135
Stats:     18 lines in 5 files changed: 5 ins; 6 del; 7 mod

8359394: GC cause cleanup

Reviewed-by: shade, ysr, stefank

-------------

PR: https://git.openjdk.org/jdk/pull/25789

From wkemper at openjdk.org  Thu Jun 19 20:27:23 2025
From: wkemper at openjdk.org (William Kemper)
Date: Thu, 19 Jun 2025 20:27:23 GMT
Subject: RFR: 8357550: GenShen crashes during freeze:
 assert(!chunk->requires_barriers()) failed
Message-ID: <Ucznl2ab7HdNjJ4G0aho4mjN_MqfbsPyxNysd2g45uk=.35e6904b-a093-4bd5-ad77-ecae53ca9cf9@github.com>

Shenandoah captures a preliminary top-at-mark-start (TAMS) concurrently. Once concurrent marking has begun, any object beneath TAMS requires a barrier when accessed. The implementation of `ShenandoahHeap::requires_barrier` does not distinguish between _old_ and _young_ marking. This could lead to a race between freezing the stack and capturing TAMS:

1. Collector is marking old
2. Allocate stack chunk in young
3. Barrier is not needed, begin fast freeze path
4. Collector concurrently updates TAMS (young marking will start once init-mark safepoint is reached)
5. ShenandoahHeap now thinks the barrier is needed (because TAMS changed, and we are marking old)
6. Fast freeze asserts out

This fix has the generational mode check the appropriate generation and its marking state. It also enforces barriers for stackChunks in the old generation (for card marking).

-------------

Commit messages:
 - override requires_barriers for generational mode

Changes: https://git.openjdk.org/jdk/pull/25905/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25905&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8357550
  Stats: 25 lines in 2 files changed: 25 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/25905.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25905/head:pull/25905

PR: https://git.openjdk.org/jdk/pull/25905

From kdnilsen at openjdk.org  Thu Jun 19 20:57:37 2025
From: kdnilsen at openjdk.org (Kelvin Nilsen)
Date: Thu, 19 Jun 2025 20:57:37 GMT
Subject: RFR: 8357550: GenShen crashes during freeze:
 assert(!chunk->requires_barriers()) failed
In-Reply-To: <Ucznl2ab7HdNjJ4G0aho4mjN_MqfbsPyxNysd2g45uk=.35e6904b-a093-4bd5-ad77-ecae53ca9cf9@github.com>
References: <Ucznl2ab7HdNjJ4G0aho4mjN_MqfbsPyxNysd2g45uk=.35e6904b-a093-4bd5-ad77-ecae53ca9cf9@github.com>
Message-ID: <nOfXFYM-qRXg1KRl8gZ7IqZ5ZNJ4q0yhZb9JFXSKKhs=.719f2d41-ee2a-40cc-9025-0be0535651ef@github.com>

On Thu, 19 Jun 2025 20:21:35 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Shenandoah captures a preliminary top-at-mark-start (TAMS) concurrently. Once concurrent marking has begun, any object beneath TAMS requires a barrier when accessed. The implementation of `ShenandoahHeap::requires_barrier` does not distinguish between _old_ and _young_ marking. This could lead to a race between freezing the stack and capturing TAMS:
> 
> 1. Collector is marking old
> 2. Allocate stack chunk in young
> 3. Barrier is not needed, begin fast freeze path
> 4. Collector concurrently updates TAMS (young marking will start once init-mark safepoint is reached)
> 5. ShenandoahHeap now thinks the barrier is needed (because TAMS changed, and we are marking old)
> 6. Fast freeze asserts out
> 
> This fix has the generational mode check the appropriate generation and its marking state. It also enforces barriers for stackChunks in the old generation (for card marking).

Marked as reviewed by kdnilsen (Committer).

src/hotspot/share/gc/shenandoah/shenandoahGenerationalHeap.cpp line 191:

> 189:   }
> 190: 
> 191:   if (is_concurrent_young_mark_in_progress() && is_in_young(obj) && !marking_context()->allocated_after_mark_start(obj)) {

Just so I understand (and maybe this deserves a clarifying comment to help others understand):
  The barrier we are concerned about here is SATB.  If obj is above TAMS, there's no need to enforce a SATB barrier.  Any reference residing above TAMS which is overwritten will have been marked already, or is about to be marked.  Either the value is already "presumed marked" because it also resides above TAMS, or its value was assigned from a root (in which case root scanning marked it), or it was copied from a pre-existing object (in which case it will be marked by scanning of that pre-existing object or by SATB).

-------------

PR Review: https://git.openjdk.org/jdk/pull/25905#pullrequestreview-2944013440
PR Review Comment: https://git.openjdk.org/jdk/pull/25905#discussion_r2157651598

From wkemper at openjdk.org  Thu Jun 19 21:32:28 2025
From: wkemper at openjdk.org (William Kemper)
Date: Thu, 19 Jun 2025 21:32:28 GMT
Subject: RFR: 8357550: GenShen crashes during freeze:
 assert(!chunk->requires_barriers()) failed
In-Reply-To: <nOfXFYM-qRXg1KRl8gZ7IqZ5ZNJ4q0yhZb9JFXSKKhs=.719f2d41-ee2a-40cc-9025-0be0535651ef@github.com>
References: <Ucznl2ab7HdNjJ4G0aho4mjN_MqfbsPyxNysd2g45uk=.35e6904b-a093-4bd5-ad77-ecae53ca9cf9@github.com>
 <nOfXFYM-qRXg1KRl8gZ7IqZ5ZNJ4q0yhZb9JFXSKKhs=.719f2d41-ee2a-40cc-9025-0be0535651ef@github.com>
Message-ID: <zl1SDyiDJGqxeI8MWLo-i88H7DBOLeKKp17jJpU-UeU=.000f6021-1733-499d-ae6f-23f3d35b9ae1@github.com>

On Thu, 19 Jun 2025 20:55:03 GMT, Kelvin Nilsen <kdnilsen at openjdk.org> wrote:

>> Shenandoah captures a preliminary top-at-mark-start (TAMS) concurrently. Once concurrent marking has begun, any object beneath TAMS requires a barrier when accessed. The implementation of `ShenandoahHeap::requires_barrier` does not distinguish between _old_ and _young_ marking. This could lead to a race between freezing the stack and capturing TAMS:
>> 
>> 1. Collector is marking old
>> 2. Allocate stack chunk in young
>> 3. Barrier is not needed, begin fast freeze path
>> 4. Collector concurrently updates TAMS (young marking will start once init-mark safepoint is reached)
>> 5. ShenandoahHeap now thinks the barrier is needed (because TAMS changed, and we are marking old)
>> 6. Fast freeze asserts out
>> 
>> This fix has the generational mode check the appropriate generation and its marking state. It also enforces barriers for stackChunks in the old generation (for card marking).
>
> src/hotspot/share/gc/shenandoah/shenandoahGenerationalHeap.cpp line 191:
> 
>> 189:   }
>> 190: 
>> 191:   if (is_concurrent_young_mark_in_progress() && is_in_young(obj) && !marking_context()->allocated_after_mark_start(obj)) {
> 
> Just so I understand (and maybe this deserves a clarifying comment to help others understand):
>   The barrier we are concerned about here is SATB.  If obj is above TAMS, there's no need to enforce a SATB barrier.  Any reference residing above TAMS which is overwritten will have been marked already, or is about to be marked.  Either the value is already "presumed marked" because it also resides above TAMS, or its value was assigned from a root (in which case root scanning marked it), or it was copied from a pre-existing object (in which case it will be marked by scanning of that pre-existing object or by SATB).

Yes, concerned about SATB here.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/25905#discussion_r2157677596

From andrew at openjdk.org  Thu Jun 19 23:13:27 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Thu, 19 Jun 2025 23:13:27 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 8 new changesets
Message-ID: <cae5b3e5-7792-48ee-8346-589638588447@openjdk.org>

Changeset: a039c8a5
Branch: master
Author:    Tobias Gesellchen <tobias at gesellix.de>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-08-07 17:55:48 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/a039c8a5d98abb2223a02a9591e805891259221f

8214046: [macosx] Undecorated Frame does not Iconify when set to

Reviewed-by: phh, serb
Backport-of: ab97f65242dad6ad1a7bfb8284954f202eb37369

! jdk/src/macosx/native/sun/awt/AWTWindow.m
! jdk/test/java/awt/Frame/NormalToIconified/NormalToIconifiedTest.java

Changeset: 893340a7
Branch: master
Author:    Ben Taylor <btaylor at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-08-09 16:13:49 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/893340a78b23b6dd6086a79d4d07cf220caaedc4

8040887: [TESTBUG] Remove test/runtime/6925573/SortMethodsTest.java

Removed test/runtime/6925573/SortMethodsTest.java

Reviewed-by: phh
Backport-of: db9dcbd63b412cbc9cbbf537585b63a5ccbe8d46

- hotspot/test/runtime/6925573/SortMethodsTest.java

Changeset: 710481f9
Branch: master
Author:    sendaoYan <yansendao.ysd at alibaba-inc.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-08-09 16:15:58 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/710481f9da9ed5253ed8db02320bd38e551caf46

8219804: java/net/MulticastSocket/Promiscuous.java fails intermittently due to NumberFormatException

Reviewed-by: phh
Backport-of: eccfec498d4062b582282f3b73bba84206a36046

! jdk/test/java/net/MulticastSocket/Promiscuous.java

Changeset: ab2d4274
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2023-08-09 16:47:05 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/ab2d4274459fe503bded639de5e8b80aca056454

8232225: Rework the fix for JDK-8071483

Reviewed-by: phh
Backport-of: e4b73897adf47467461634ceb786540f46aa9eb7

= jdk/test/java/awt/ColorClass/HeadlessColor.java
= jdk/test/java/awt/ColorClass/OpacityChange/OpacityChange.java
= jdk/test/java/awt/color/GetMinMaxValue_ICC_ColorSpace.java
= jdk/test/java/awt/color/ICC_Profile/GetInstanceBrokenStream.java
= jdk/test/java/awt/color/LoadProfileWithSM.java
= jdk/test/java/awt/color/LoadStandardProfilesTest.java

Changeset: 86ea3f25
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-08-11 08:50:49 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/86ea3f25b6b288919788d4ec99ff4cc0bab81413

8308788: [8u] Remove duplicate HaricaCA.java test

Reviewed-by: phh, andrew

- jdk/test/jdk/security/infra/java/security/cert/CertPathValidator/certification/HaricaCA.java

Changeset: 949d8e77
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-08-11 08:57:39 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/949d8e7783112977b644294620585513b7d63ae7

8287073: NPE from CgroupV2Subsystem.getInstance()

Reviewed-by: andrew
Backport-of: 744b822ab194a0f7ef4e7a4053be32c6a0889efc

! jdk/src/linux/classes/jdk/internal/platform/CgroupSubsystemFactory.java

Changeset: 5f62e559
Branch: master
Author:    Alexey Bakhtin <abakhtin at openjdk.org>
Date:      2023-08-11 23:01:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/5f62e559fb5040c5d0021de4c3ee49e6fca6b087

6722928: Provide a default native GSS-API library on Windows

Reviewed-by: phh, andrew
Backport-of: 475996adc2aaa7af920f2e9711d0ace2ddd2430e

! jdk/make/lib/SecurityLibraries.gmk
! jdk/src/share/classes/sun/security/jgss/spnego/NegTokenTarg.java
! jdk/src/share/classes/sun/security/jgss/wrapper/SunNativeProvider.java
! jdk/src/share/native/sun/security/jgss/wrapper/GSSLibStub.c
! jdk/src/share/native/sun/security/jgss/wrapper/NativeFunc.h
! jdk/src/share/native/sun/security/jgss/wrapper/NativeUtil.h
! jdk/src/share/native/sun/security/jgss/wrapper/gssapi.h
+ jdk/src/windows/native/sun/security/jgss/sspi_bridge/sspi.cpp

Changeset: 04f09bc9
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-18 16:52:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/04f09bc94d3784a1a45ba2cdae6a399384690a5b

Merge jdk8u392-b02

Added tag jdk8u392-b02 for changeset 5f62e559fb5040c5d0021de4c3ee49e6fca6b087



From andrew at openjdk.org  Thu Jun 19 23:13:39 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Thu, 19 Jun 2025 23:13:39 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u392-b02 for
 changeset 04f09bc9
Message-ID: <25e07d2e-701e-4e26-b343-2d2e39afb3a7@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-18 17:37:21 +0000

Added tag shenandoah8u392-b02 for changeset 04f09bc94d3
Changeset: 04f09bc9
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-18 16:52:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/04f09bc94d3784a1a45ba2cdae6a399384690a5b


From andrew at openjdk.org  Thu Jun 19 23:13:36 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Thu, 19 Jun 2025 23:13:36 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u392-b02 for changeset
 5f62e559
Message-ID: <8cca7071-2046-4108-b7ed-ff488429e6bd@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-08-14 14:21:48 +0000

Added tag jdk8u392-b02 for changeset 5f62e559fb5040c5d0021de4c3ee49e6fca6b087
Changeset: 5f62e559
Author:    Alexey Bakhtin <abakhtin at openjdk.org>
Date:      2023-08-11 23:01:00 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/5f62e559fb5040c5d0021de4c3ee49e6fca6b087


From andrew at openjdk.org  Thu Jun 19 23:15:30 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Thu, 19 Jun 2025 23:15:30 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <NRIPX7Ew0diW2sruuFBNcCLNc3J_DDvJt95bsNB4Nl0=.4eab865e-7706-4a14-a77e-715bf0c71bf7@github.com>
References: <NRIPX7Ew0diW2sruuFBNcCLNc3J_DDvJt95bsNB4Nl0=.4eab865e-7706-4a14-a77e-715bf0c71bf7@github.com>
Message-ID: <dckmd9YX4Aj-s0y1kNixusLiLvTHlCOMKr-uidNiXUU=.3608e17d-c278-4a04-928b-641bb5372760@github.com>

> Merge jdk8u392-b02
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/53/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/53/files/04f09bc9..04f09bc9

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=53&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=53&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/53.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/53/head:pull/53

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/53

From iris at openjdk.org  Thu Jun 19 23:15:31 2025
From: iris at openjdk.org (Iris Clark)
Date: Thu, 19 Jun 2025 23:15:31 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <NRIPX7Ew0diW2sruuFBNcCLNc3J_DDvJt95bsNB4Nl0=.4eab865e-7706-4a14-a77e-715bf0c71bf7@github.com>
References: <NRIPX7Ew0diW2sruuFBNcCLNc3J_DDvJt95bsNB4Nl0=.4eab865e-7706-4a14-a77e-715bf0c71bf7@github.com>
Message-ID: <Tg2aCq9pNM5f28GPtvtyEKc-NCrS_sYAz-q7iiDJHvA=.d8d2e6a2-677c-43eb-b8a1-f6ce4210a966@github.com>

On Wed, 18 Jun 2025 16:39:38 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u392-b02
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/53

From andrew at openjdk.org  Fri Jun 20 00:23:24 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 20 Jun 2025 00:23:24 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <87rnRh5R5GLkgdcsg_HTXZIp1BW09MGQcqCviUPkHbE=.9607c45f-a52a-4cb9-9f85-383f2bd9cace@github.com>

Merge jdk8u392-b03

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

Commit messages:
 - Merge jdk8u392-b03
 - 8042726: [TESTBUG] TEST.groups file was not updated after runtime/6925573/SortMethodsTest.java removal
 - 8287663: Add a regression test for JDK-8287073

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=54&range=00.0
 - jdk8u:master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=54&range=00.1

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/54/files
  Stats: 37 lines in 3 files changed: 35 ins; 1 del; 1 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/54.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/54/head:pull/54

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/54

From andrew at openjdk.org  Fri Jun 20 00:26:45 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 20 Jun 2025 00:26:45 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 3 new changesets
Message-ID: <06f6e57d-c4a1-4ef8-be44-73dfc3c0a639@openjdk.org>

Changeset: fc379423
Branch: master
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-08-14 07:23:21 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/fc379423b48eef9d6aee2a0cda7c87353dd31f71

8287663: Add a regression test for JDK-8287073

Reviewed-by: phh, andrew
Backport-of: 2d8c6490540e3ccea23b81129b2e4073915071e0

! jdk/src/linux/classes/jdk/internal/platform/CgroupSubsystemFactory.java
! jdk/test/jdk/internal/platform/cgroup/TestCgroupSubsystemFactory.java

Changeset: 32324003
Branch: master
Author:    Ben Taylor <btaylor at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-08-16 18:14:18 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3232400385ca3797247bfba20a54616cf893c50f

8042726: [TESTBUG] TEST.groups file was not updated after runtime/6925573/SortMethodsTest.java removal

Removed runtime/6925573/SortMethodsTest.java from TEST.groups

Reviewed-by: sgehwolf
Backport-of: 3e6986fb58400193cf02ce4566afcf8bd24b92de

! hotspot/test/TEST.groups

Changeset: 1e655291
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-20 00:12:44 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1e6552911d470f18352461612fb03f1f5ea946e5

Merge jdk8u392-b03

Added tag jdk8u392-b03 for changeset 3232400385c

! hotspot/test/TEST.groups
! hotspot/test/TEST.groups


From andrew at openjdk.org  Fri Jun 20 00:26:54 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 20 Jun 2025 00:26:54 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u392-b03 for changeset
 32324003
Message-ID: <c74e52ff-72f9-454b-b486-63400fc2ab51@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-08-23 04:34:15 +0000

Added tag jdk8u392-b03 for changeset 3232400385c
Changeset: 32324003
Author:    Ben Taylor <btaylor at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-08-16 18:14:18 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/3232400385ca3797247bfba20a54616cf893c50f


From andrew at openjdk.org  Fri Jun 20 00:26:57 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 20 Jun 2025 00:26:57 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u392-b03 for
 changeset 1e655291
Message-ID: <77f217d2-3c7e-4cd1-8469-b7ddcc70af3a@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-20 01:17:38 +0000

Added tag shenandoah8u392-b03 for changeset 1e6552911d4
Changeset: 1e655291
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-20 00:12:44 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/1e6552911d470f18352461612fb03f1f5ea946e5


From andrew at openjdk.org  Fri Jun 20 00:27:55 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 20 Jun 2025 00:27:55 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <87rnRh5R5GLkgdcsg_HTXZIp1BW09MGQcqCviUPkHbE=.9607c45f-a52a-4cb9-9f85-383f2bd9cace@github.com>
References: <87rnRh5R5GLkgdcsg_HTXZIp1BW09MGQcqCviUPkHbE=.9607c45f-a52a-4cb9-9f85-383f2bd9cace@github.com>
Message-ID: <UTgBc4YxE4S1hniq25DBHllWP_PtyvSLWY4ysdQFAEo=.8fa603b4-0b9b-4d0d-ada1-dbb2b31bd462@github.com>

> Merge jdk8u392-b03
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/54/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/54/files/1e655291..1e655291

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=54&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=54&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/54.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/54/head:pull/54

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/54

From iris at openjdk.org  Fri Jun 20 00:27:55 2025
From: iris at openjdk.org (Iris Clark)
Date: Fri, 20 Jun 2025 00:27:55 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <87rnRh5R5GLkgdcsg_HTXZIp1BW09MGQcqCviUPkHbE=.9607c45f-a52a-4cb9-9f85-383f2bd9cace@github.com>
References: <87rnRh5R5GLkgdcsg_HTXZIp1BW09MGQcqCviUPkHbE=.9607c45f-a52a-4cb9-9f85-383f2bd9cace@github.com>
Message-ID: <lFlL_mj1GPx4DWeMFOwP7npd97QPIujcmeDcwPZm8zs=.ab445c12-751b-47e9-81a3-6f8cfd7226da@github.com>

On Fri, 20 Jun 2025 00:18:21 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u392-b03
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/54

From shade at openjdk.org  Fri Jun 20 08:50:29 2025
From: shade at openjdk.org (Aleksey Shipilev)
Date: Fri, 20 Jun 2025 08:50:29 GMT
Subject: RFR: 8357550: GenShen crashes during freeze:
 assert(!chunk->requires_barriers()) failed
In-Reply-To: <Ucznl2ab7HdNjJ4G0aho4mjN_MqfbsPyxNysd2g45uk=.35e6904b-a093-4bd5-ad77-ecae53ca9cf9@github.com>
References: <Ucznl2ab7HdNjJ4G0aho4mjN_MqfbsPyxNysd2g45uk=.35e6904b-a093-4bd5-ad77-ecae53ca9cf9@github.com>
Message-ID: <0L1NcCsN1AEMFQspK2dasofKoZ24YaP12PIgjxO9lHg=.ef2e6083-db79-47c7-8684-98204d9a270f@github.com>

On Thu, 19 Jun 2025 20:21:35 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Shenandoah captures a preliminary top-at-mark-start (TAMS) concurrently. Once concurrent marking has begun, any object beneath TAMS requires a barrier when accessed. The implementation of `ShenandoahHeap::requires_barrier` does not distinguish between _old_ and _young_ marking. This could lead to a race between freezing the stack and capturing TAMS:
> 
> 1. Collector is marking old
> 2. Allocate stack chunk in young
> 3. Barrier is not needed, begin fast freeze path
> 4. Collector concurrently updates TAMS (young marking will start once init-mark safepoint is reached)
> 5. ShenandoahHeap now thinks the barrier is needed (because TAMS changed, and we are marking old)
> 6. Fast freeze asserts out
> 
> This fix has the generational mode check the appropriate generation and its marking state. It also enforces barriers for stackChunks in the old generation (for card marking).

This makes sense.

-------------

Marked as reviewed by shade (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25905#pullrequestreview-2945074807

From mdoerr at openjdk.org  Fri Jun 20 09:01:29 2025
From: mdoerr at openjdk.org (Martin Doerr)
Date: Fri, 20 Jun 2025 09:01:29 GMT
Subject: RFR: 8358821: patch_verified_entry causes problems,
 use nmethod entry barriers instead [v8]
In-Reply-To: <2gdPUDg-i40xRoO8LZPWszL2-oa6s7GNZEDRfHfDk8s=.4dbfe74a-070b-46c1-b73d-0292824d02e9@github.com>
References: <MHl4gp-i7wvWlPIDFe-DgLkTdKsHdN5IMmKfqM62vOU=.77d172b7-3a83-4d6d-9b4e-6b580155088f@github.com>
 <2gdPUDg-i40xRoO8LZPWszL2-oa6s7GNZEDRfHfDk8s=.4dbfe74a-070b-46c1-b73d-0292824d02e9@github.com>
Message-ID: <aqutosiSmqM1u3TePxEPFdPkM0Apd1XfjY7WXEssO-0=.83eb647e-114f-4b4f-b0f1-d2d89e16a426@github.com>

On Tue, 17 Jun 2025 20:59:46 GMT, Dean Long <dlong at openjdk.org> wrote:

>> This PR removes patching of the verified entry point and related code, and replaces it by refactoring the existing nmethod entry barrier.
>> 
>> We used to patch the verified entry point to make sure it was not_entrant.  The patched entry point then redirected to SharedRuntime::handle_wrong_method(), either directly with a jump to a stub, or indirectly with an illegal instruction and the help of the signal handler.  The not_entrant state is a final state, so once an nmethod becomes not_entrant, it stays not_entrant.  We can do the same thing with a permanently armed nmethod entry barrier.
>> 
>> The solution I went with reserves one bit of the entry barrier guard value.  This bit must remain set, so I call it a "sticky" bit.  Setting the guard value now is effectively like setting a bitfield, so I needed to add a lock around it.  The alternative would be to change the platform-specific code to do compare-and-swap.
>> 
>> For the lock, I introduced a new NMethodEntryBarrier_lock, whose only purpose is to make the update to the guard value atomic.  For ZGC, I decided to use the existing per-nmethod lock ZNMethod::lock_for_nmethod().  I suspect we could do the same for Shenandoah, if needed for performance.
>> 
>> This change also makes it a bit clearer that  the nmethod entry barrier effectively has two levels.  Level 0 is the outer level or layer controlled by BarrierSetNMethod::nmethod_stub_entry_barrier(), and the inner layer controlled by BarrierSetNMethod::nmethod_entry_barrier().  This could be generalized if we decide we need more flavors of entry barriers.  The inner barrier is mostly ignorant of the fact that the outer guard is multiplexing for both levels.
>
> Dean Long has updated the pull request incrementally with one additional commit since the last revision:
> 
>   2nd try at arm fix

> > Tests look good on our side. I'm only a bit concerned that the lock may become a bottleneck when many Java threads need to patch all nmethods. Especially with ZGC which does that more often. I think we should check performance.
> 
> For ZGC I am using a per-nmethod lock: ZLocker locker(ZNMethod::lock_for_nmethod(nm));

Ah, right. So, ZGC should be fine.

> I don't know what benchmarks to run to check the performance for functions like Deoptimization::deoptimize_all_marked, so I welcome any help with this.

I have tried some SPEC benchmarks with G1 on PPC64, but couldn't observe a regression. (If there is one, it was below noise.)
 
> One possible optimization that might help is skipping the lock if the make_not_entrant call is done during a safepoint.

I guess the most critical scenario is when many Java threads need to disarm a large number of nmethod entry barriers. That doesn't happen at a safepoint. Not sure if other scenarios are worth optimizing by this idea.

I guess this PR is ok as it is. Maybe other reviewers have more comments.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25764#issuecomment-2990348628

From andrew at openjdk.org  Fri Jun 20 11:48:32 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 20 Jun 2025 11:48:32 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <ytgiqycvbpQFiPGcwze4QAOdPsW7vpuT3DTw6NoeO7g=.d30a5bad-02bb-4f45-8b83-ff9a5f90d633@github.com>

Merge jdk8u392-b04

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

Commit messages:
 - Merge jdk8u392-b04
 - 8173072: zipfs fails to handle incorrect info-zip "extended timestamp extra field"
 - 8202952: C2: Unexpected dead nodes after matching

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=55&range=00.0
 - jdk8u:master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=55&range=00.1

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/55/files
  Stats: 72 lines in 3 files changed: 69 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/55.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/55/head:pull/55

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/55

From andrew at openjdk.org  Fri Jun 20 11:59:41 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 20 Jun 2025 11:59:41 GMT
Subject: git: openjdk/shenandoah-jdk8u: master: 3 new changesets
Message-ID: <01d58a99-62e5-4829-b0ca-609b7d594106@openjdk.org>

Changeset: aa3e9dda
Branch: master
Author:    Dongbo He <dongbohe at openjdk.org>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-08-24 12:47:59 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/aa3e9dda3d733508ad8bcd6e290f716b189141d4

8202952: C2: Unexpected dead nodes after matching

Reviewed-by: roland, andrew
Backport-of: 50e3aa4150dc1dd18870c5725666188ab38ab7d5

! hotspot/src/share/vm/opto/matcher.cpp
+ hotspot/test/compiler/c2/TestMatcherLargeOffset.java

Changeset: f9292695
Branch: master
Author:    Xin Liu <xliu at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-08-24 17:49:18 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f92926955791c810469e412927f58f2ca634fe4b

8173072: zipfs fails to handle incorrect info-zip "extended timestamp extra field"

Reviewed-by: phh, serb, andrew
Backport-of: 248778d27a5f8a16e4c90a4f5a6632a7ca8e9a89

! jdk/src/share/demo/nio/zipfs/src/com/sun/nio/zipfs/ZipFileSystem.java

Changeset: 45b730ed
Branch: master
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-20 01:38:02 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/45b730ed92a45af360cfbaf1742bf21723157d63

Merge jdk8u392-b04

Added tag jdk8u392-b04 for changeset f92926955791c810469e412927f58f2ca634fe4b

! hotspot/src/share/vm/opto/matcher.cpp
! hotspot/src/share/vm/opto/matcher.cpp


From andrew at openjdk.org  Fri Jun 20 11:59:50 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 20 Jun 2025 11:59:50 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u402-b00 for changeset
 f9292695
Message-ID: <ae55e013-4b9a-402f-b5fd-17d7626efb9d@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-10-31 18:48:18 +0000

Added tag jdk8u402-b00 for changeset f9292695579
Changeset: f9292695
Author:    Xin Liu <xliu at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-08-24 17:49:18 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f92926955791c810469e412927f58f2ca634fe4b


From andrew at openjdk.org  Fri Jun 20 11:59:54 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 20 Jun 2025 11:59:54 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u402-b00 for
 changeset 45b730ed
Message-ID: <ac6b169a-7304-4651-be82-8ec54bc0744e@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-20 12:41:30 +0000

Added tag shenandoah8u402-b00 for changeset 45b730ed92a
Changeset: 45b730ed
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-20 01:38:02 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/45b730ed92a45af360cfbaf1742bf21723157d63


From andrew at openjdk.org  Fri Jun 20 11:59:58 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 20 Jun 2025 11:59:58 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag jdk8u392-b04 for changeset
 f9292695
Message-ID: <c33f43a7-dca9-44c1-b74a-09bbc70d5703@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2023-08-30 01:10:17 +0000

Added tag jdk8u392-b04 for changeset f92926955791c810469e412927f58f2ca634fe4b
Changeset: f9292695
Author:    Xin Liu <xliu at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-08-24 17:49:18 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/f92926955791c810469e412927f58f2ca634fe4b


From andrew at openjdk.org  Fri Jun 20 12:00:04 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 20 Jun 2025 12:00:04 GMT
Subject: git: openjdk/shenandoah-jdk8u: Added tag shenandoah8u392-b04 for
 changeset 45b730ed
Message-ID: <6da83c15-4deb-4547-ab02-bbb6d9db1544@openjdk.org>

Tagged by: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-20 12:41:10 +0000

Added tag shenandoah8u392-b04 for changeset 45b730ed92a
Changeset: 45b730ed
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2025-06-20 01:38:02 +0000
URL:       https://git.openjdk.org/shenandoah-jdk8u/commit/45b730ed92a45af360cfbaf1742bf21723157d63


From andrew at openjdk.org  Fri Jun 20 12:02:19 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 20 Jun 2025 12:02:19 GMT
Subject: RFR: Merge jdk8u:master [v2]
In-Reply-To: <ytgiqycvbpQFiPGcwze4QAOdPsW7vpuT3DTw6NoeO7g=.d30a5bad-02bb-4f45-8b83-ff9a5f90d633@github.com>
References: <ytgiqycvbpQFiPGcwze4QAOdPsW7vpuT3DTw6NoeO7g=.d30a5bad-02bb-4f45-8b83-ff9a5f90d633@github.com>
Message-ID: <gS5RIxGohaw1WkWySwLgPo9xF4Q1K6zgwrdUx82-wLY=.46a0c79f-2749-4eb5-a293-2b55fca97328@github.com>

> Merge jdk8u392-b04
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

Andrew John Hughes has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah-jdk8u/pull/55/files
  - new: https://git.openjdk.org/shenandoah-jdk8u/pull/55/files/45b730ed..45b730ed

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=55&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=55&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/55.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/55/head:pull/55

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/55

From iris at openjdk.org  Fri Jun 20 12:02:19 2025
From: iris at openjdk.org (Iris Clark)
Date: Fri, 20 Jun 2025 12:02:19 GMT
Subject: Withdrawn: Merge jdk8u:master
In-Reply-To: <ytgiqycvbpQFiPGcwze4QAOdPsW7vpuT3DTw6NoeO7g=.d30a5bad-02bb-4f45-8b83-ff9a5f90d633@github.com>
References: <ytgiqycvbpQFiPGcwze4QAOdPsW7vpuT3DTw6NoeO7g=.d30a5bad-02bb-4f45-8b83-ff9a5f90d633@github.com>
Message-ID: <Pg1Y6U-tEAmug7DzVGYH4sC_yhUUV37vLxWbZ9HZ-dc=.b155fa73-dda9-49d1-837f-842883965269@github.com>

On Fri, 20 Jun 2025 11:43:11 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> Merge jdk8u392-b04
> 
> GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/55

From wkemper at openjdk.org  Fri Jun 20 17:10:34 2025
From: wkemper at openjdk.org (William Kemper)
Date: Fri, 20 Jun 2025 17:10:34 GMT
Subject: Integrated: 8357550: GenShen crashes during freeze:
 assert(!chunk->requires_barriers()) failed
In-Reply-To: <Ucznl2ab7HdNjJ4G0aho4mjN_MqfbsPyxNysd2g45uk=.35e6904b-a093-4bd5-ad77-ecae53ca9cf9@github.com>
References: <Ucznl2ab7HdNjJ4G0aho4mjN_MqfbsPyxNysd2g45uk=.35e6904b-a093-4bd5-ad77-ecae53ca9cf9@github.com>
Message-ID: <Y9wXwS2lgiA8UV5WPchkdiXFMmCeq7Z_-hLZt9FhmCQ=.3966546b-407c-4913-ad2e-cab2474e3ab8@github.com>

On Thu, 19 Jun 2025 20:21:35 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Shenandoah captures a preliminary top-at-mark-start (TAMS) concurrently. Once concurrent marking has begun, any object beneath TAMS requires a barrier when accessed. The implementation of `ShenandoahHeap::requires_barrier` does not distinguish between _old_ and _young_ marking. This could lead to a race between freezing the stack and capturing TAMS:
> 
> 1. Collector is marking old
> 2. Allocate stack chunk in young
> 3. Barrier is not needed, begin fast freeze path
> 4. Collector concurrently updates TAMS (young marking will start once init-mark safepoint is reached)
> 5. ShenandoahHeap now thinks the barrier is needed (because TAMS changed, and we are marking old)
> 6. Fast freeze asserts out
> 
> This fix has the generational mode check the appropriate generation and its marking state. It also enforces barriers for stackChunks in the old generation (for card marking).

This pull request has now been integrated.

Changeset: 17cf4974
Author:    William Kemper <wkemper at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/17cf49746d0c289bdf779c974cdc84a3ab32ab4b
Stats:     25 lines in 2 files changed: 25 ins; 0 del; 0 mod

8357550: GenShen crashes during freeze: assert(!chunk->requires_barriers()) failed

Reviewed-by: kdnilsen, shade

-------------

PR: https://git.openjdk.org/jdk/pull/25905

From wkemper at openjdk.org  Fri Jun 20 18:52:39 2025
From: wkemper at openjdk.org (William Kemper)
Date: Fri, 20 Jun 2025 18:52:39 GMT
Subject: [jdk25] RFR: 8357550: GenShen crashes during freeze:
 assert(!chunk->requires_barriers()) failed
Message-ID: <jlxaobHjXlpe6zIyAXP9WwORonEeiHSudYjZ4-UUHQs=.650abd09-64a2-47f7-9b40-f79f17e0dceb@github.com>

This is a low risk change that addresses an assertion failure when Shenandoah's generational mode is used with virtual threads.

-------------

Commit messages:
 - Backport 17cf49746d0c289bdf779c974cdc84a3ab32ab4b

Changes: https://git.openjdk.org/jdk/pull/25918/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25918&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8357550
  Stats: 25 lines in 2 files changed: 25 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/25918.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25918/head:pull/25918

PR: https://git.openjdk.org/jdk/pull/25918

From wkemper at openjdk.org  Fri Jun 20 21:03:24 2025
From: wkemper at openjdk.org (William Kemper)
Date: Fri, 20 Jun 2025 21:03:24 GMT
Subject: RFR: 8357550: GenShen crashes during freeze:
 assert(!chunk->requires_barriers()) failed
Message-ID: <6CpS7paFc6rwPgO3w-mYjZFyIt65qqqnHPLvomKt9qc=.903ed120-c65c-400f-918b-e9509dc1e083@github.com>

Clean backport, low risk.

-------------

Commit messages:
 - Backport 17cf49746d0c289bdf779c974cdc84a3ab32ab4b

Changes: https://git.openjdk.org/shenandoah-jdk21u/pull/200/files
  Webrev: https://webrevs.openjdk.org/?repo=shenandoah-jdk21u&pr=200&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8357550
  Stats: 25 lines in 2 files changed: 25 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk21u/pull/200.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk21u.git pull/200/head:pull/200

PR: https://git.openjdk.org/shenandoah-jdk21u/pull/200

From wkemper at openjdk.org  Fri Jun 20 21:10:03 2025
From: wkemper at openjdk.org (William Kemper)
Date: Fri, 20 Jun 2025 21:10:03 GMT
Subject: Integrated: 8357550: GenShen crashes during freeze:
 assert(!chunk->requires_barriers()) failed
In-Reply-To: <6CpS7paFc6rwPgO3w-mYjZFyIt65qqqnHPLvomKt9qc=.903ed120-c65c-400f-918b-e9509dc1e083@github.com>
References: <6CpS7paFc6rwPgO3w-mYjZFyIt65qqqnHPLvomKt9qc=.903ed120-c65c-400f-918b-e9509dc1e083@github.com>
Message-ID: <qDLnBPBGfkIIZb7MImztmrn_Njh64BRKzNpWmsSqfh0=.66118e67-a260-444d-95b5-812c4f2d28e1@github.com>

On Fri, 20 Jun 2025 20:56:53 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Clean backport, low risk.

This pull request has now been integrated.

Changeset: f5884b3a
Author:    William Kemper <wkemper at openjdk.org>
URL:       https://git.openjdk.org/shenandoah-jdk21u/commit/f5884b3a5dcc921e83ac241b1fb5b91e5988af00
Stats:     25 lines in 2 files changed: 25 ins; 0 del; 0 mod

8357550: GenShen crashes during freeze: assert(!chunk->requires_barriers()) failed

Backport-of: 17cf49746d0c289bdf779c974cdc84a3ab32ab4b

-------------

PR: https://git.openjdk.org/shenandoah-jdk21u/pull/200

From andrew at openjdk.org  Fri Jun 20 21:28:52 2025
From: andrew at openjdk.org (Andrew John Hughes)
Date: Fri, 20 Jun 2025 21:28:52 GMT
Subject: RFR: Merge jdk8u:master
Message-ID: <gl5WOlHZdothVN80E82alegbsO_buZMlAZDFeQOIoJo=.2e809993-2949-43be-9624-394a01d3be43@github.com>

Merge jdk8u392-b05

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

-------------

Commit messages:
 - Merge jdk8u392-b05
 - Merge
 - 8225687: Newly added sspi.cpp in JDK-6722928 still contains some small errors

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/56/files
  Stats: 127 lines in 3 files changed: 42 ins; 1 del; 84 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/56.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/56/head:pull/56

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/56