From duke at openjdk.java.net  Fri Oct  1 02:15:04 2021
From: duke at openjdk.java.net (duke)
Date: Fri, 1 Oct 2021 02:15:04 GMT
Subject: git: openjdk/loom: fibers: 2 new changesets
Message-ID: <d92a58f0-dce5-412b-8143-3c0f8258f611@openjdk.java.net>

Changeset: 36f6e0b9
Author:    Chris Plummer <chris.plummer at oracle.com>
Date:      2021-10-01 02:11:15 +0000
URL:       https://git.openjdk.java.net/loom/commit/36f6e0b919c5448e7a2060de8acea453cd86b1af

Problem list VMOutOfMemoryException001.java on windows

! test/hotspot/jtreg/ProblemList-vthread.txt

Changeset: c23fdcda
Author:    Chris Plummer <chris.plummer at oracle.com>
Date:      2021-10-01 02:12:39 +0000
URL:       https://git.openjdk.java.net/loom/commit/c23fdcda67e160e359697956e3f7eaf40db5a536

Merge branch 'fibers' of https://github.com/openjdk/loom into fibers



From shade at openjdk.java.net  Fri Oct  1 05:52:50 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Fri, 1 Oct 2021 05:52:50 GMT
Subject: RFR: Fix Minimal VM build failures [v4]
In-Reply-To: <bbA57l9xGYvMcC8VnomqaSaJAW7_BoV1CVrvlOD6Y2g=.eff2f617-5590-40c7-a40f-857f33520c83@github.com>
References: <VlBM3i0yaijvTuFIJ42-aearAnJndYPnJpqidEa7T6A=.34c237cc-e153-4f00-a440-d756d02e3492@github.com>
 <bbA57l9xGYvMcC8VnomqaSaJAW7_BoV1CVrvlOD6Y2g=.eff2f617-5590-40c7-a40f-857f33520c83@github.com>
Message-ID: <_Kd1zwC-6HuzAcurZHLsVrcvJpTZT_PLOPItI_oV9zc=.ee30dc79-9b56-4f2a-8c83-948fb2e42e5e@github.com>

On Wed, 29 Sep 2021 11:13:06 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Minimal VM configs have no C2 and no JVMTI. New Loom code fails the Minimal VM builds because of this. See for example GHA runs: https://github.com/shipilev/loom/runs/3717293969?check_suite_focus=true
>> 
>> C2 needs just a little bit of protection when reaching to `DerivedPointersTable`.
>> 
>> JVMTI needs a bit more work. `jvmtiExport` and `jvmtiThreadState` headers are usually included even with JVMTI turned off, but `.cpp` would not be compiled without JVMTI. Therefore, non-trivial implementations should go into `.cpp`. Plus, some of the paths that call the actual methods declared but not implemented without JVMTI should be protected with `INCLUDE_JVMTI`.
>> 
>> Additional testing:
>>  - [x] Linux x86_64 server, `tier1_loom` still passes (includes JVMTI tests)
>>  - [x] Linux x86_64 minimal now builds, runs `tier1_loom` (cannot pass JVMTI tests without JVMTI)
>
> Aleksey Shipilev has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Remove excessive guard

Thank you!

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

PR: https://git.openjdk.java.net/loom/pull/67

From shade at openjdk.java.net  Fri Oct  1 06:39:39 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Fri, 1 Oct 2021 06:39:39 GMT
Subject: Integrated: Fix Minimal VM build failures
In-Reply-To: <VlBM3i0yaijvTuFIJ42-aearAnJndYPnJpqidEa7T6A=.34c237cc-e153-4f00-a440-d756d02e3492@github.com>
References: <VlBM3i0yaijvTuFIJ42-aearAnJndYPnJpqidEa7T6A=.34c237cc-e153-4f00-a440-d756d02e3492@github.com>
Message-ID: <qprsxZwN_YBYnMljlLxIVFRDjdjCu7QWAiYGTB4TfeQ=.c97e30ad-24eb-4fd5-baae-c168174dbecb@github.com>

On Mon, 27 Sep 2021 10:57:07 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Minimal VM configs have no C2 and no JVMTI. New Loom code fails the Minimal VM builds because of this. See for example GHA runs: https://github.com/shipilev/loom/runs/3717293969?check_suite_focus=true
> 
> C2 needs just a little bit of protection when reaching to `DerivedPointersTable`.
> 
> JVMTI needs a bit more work. `jvmtiExport` and `jvmtiThreadState` headers are usually included even with JVMTI turned off, but `.cpp` would not be compiled without JVMTI. Therefore, non-trivial implementations should go into `.cpp`. Plus, some of the paths that call the actual methods declared but not implemented without JVMTI should be protected with `INCLUDE_JVMTI`.
> 
> Additional testing:
>  - [x] Linux x86_64 server, `tier1_loom` still passes (includes JVMTI tests)
>  - [x] Linux x86_64 minimal now builds, runs `tier1_loom` (cannot pass JVMTI tests without JVMTI)

This pull request has now been integrated.

Changeset: 924699a9
Author:    Aleksey Shipilev <shade at openjdk.org>
Committer: Alan Bateman <alanb at openjdk.org>
URL:       https://git.openjdk.java.net/loom/commit/924699a99374629c33d06dede838ff7c4df1f112
Stats:     56 lines in 8 files changed: 46 ins; 3 del; 7 mod

Fix Minimal VM build failures

Reviewed-by: sspitsyn, cjplummer

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

PR: https://git.openjdk.java.net/loom/pull/67

From shade at openjdk.java.net  Fri Oct  1 07:06:59 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Fri, 1 Oct 2021 07:06:59 GMT
Subject: RFR: Make Loom buildable on x86_32 [v2]
In-Reply-To: <0-D-rFniyQnPM5gVHXWf4pbg5vnMP8TdAtqkoKbFmSU=.0807e9e7-3439-4133-911e-c8ae83781659@github.com>
References: <0-D-rFniyQnPM5gVHXWf4pbg5vnMP8TdAtqkoKbFmSU=.0807e9e7-3439-4133-911e-c8ae83781659@github.com>
Message-ID: <GLJtWu92wmdWR3M9TLXmIvI09mxYO5b7W9BT9OQHpMQ=.747e7baf-4423-4f71-bbbb-e996831a3513@github.com>

> This PRs make Loom workspace at least buildable on x86_32. 
> 
> Since jlink/jmod run build JDK, the JDK itself has to start well, without touching Loom code. Current patch only does `make images` well, trying to run `tier1` with `x86_32` quickly fails with multiple errors -- I suspect deopt, G1 and other changes are subtly broken on x86_32. I shall continue the fixes in another PR, and this push would unhoard the generic 32-bit fixes in format specifiers.
> 
> Additional testing:
>  - [x] 10x `CONF=linux-x86-server-fastdebug make clean-images images`

Aleksey Shipilev 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 five additional commits since the last revision:

 - Merge branch 'fibers' into basic-x86-32-builds
 - More accurate register saving
 - More precise post_call_nops
 - Select the register better
 - Linux x86_32 builds fine

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

Changes:
  - all: https://git.openjdk.java.net/loom/pull/65/files
  - new: https://git.openjdk.java.net/loom/pull/65/files/580f407c..db6a87ae

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=loom&pr=65&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=loom&pr=65&range=00-01

  Stats: 14883 lines in 344 files changed: 10899 ins; 1798 del; 2186 mod
  Patch: https://git.openjdk.java.net/loom/pull/65.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/65/head:pull/65

PR: https://git.openjdk.java.net/loom/pull/65

From duke at openjdk.java.net  Fri Oct  1 17:23:15 2021
From: duke at openjdk.java.net (duke)
Date: Fri, 1 Oct 2021 17:23:15 GMT
Subject: git: openjdk/loom: fibers: Update tests to compile/run with
 --enable-preview
Message-ID: <b4866334-aa57-42cc-9d2f-437c9b201e15@openjdk.java.net>

Changeset: 350dc8ab
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-01 18:07:14 +0000
URL:       https://git.openjdk.java.net/loom/commit/350dc8ab17b331034304ac6f524223965610e8f8

Update tests to compile/run with --enable-preview

! test/hotspot/jtreg/runtime/jni/IsVirtualThread/IsVirtualThread.java
! test/hotspot/jtreg/runtime/vthread/JNIMonitor/JNIMonitor.java
! test/hotspot/jtreg/runtime/vthread/RedefineClass.java
! test/hotspot/jtreg/runtime/vthread/TestObjectAllocationSampleEvent.java
! test/hotspot/jtreg/serviceability/jvmti/GetOwnedMonitorInfo/GetOwnedMonitorInfoTest.java
! test/hotspot/jtreg/serviceability/jvmti/GetOwnedMonitorStackDepthInfo/GetOwnedMonitorStackDepthInfoTest.java
! test/hotspot/jtreg/serviceability/jvmti/HeapMonitor/MyPackage/HeapMonitorVMEventsTest.java
! test/hotspot/jtreg/serviceability/jvmti/RedefineClasses/RedefineRunningMethods.java
! test/hotspot/jtreg/serviceability/jvmti/RedefineClasses/RedefineRunningMethodsWithBacktrace.java
! test/hotspot/jtreg/serviceability/jvmti/events/Breakpoint/breakpoint01/breakpoint01.java
! test/hotspot/jtreg/serviceability/jvmti/events/ClassLoad/classload01/classload01.java
! test/hotspot/jtreg/serviceability/jvmti/events/ClassPrepare/classprep01/classprep01.java
! test/hotspot/jtreg/serviceability/jvmti/events/Exception/exception01/exception01.java
! test/hotspot/jtreg/serviceability/jvmti/events/ExceptionCatch/excatch01/excatch01.java
! test/hotspot/jtreg/serviceability/jvmti/events/FieldAccess/fieldacc01/fieldacc01.java
! test/hotspot/jtreg/serviceability/jvmti/events/FieldAccess/fieldacc02/fieldacc02.java
! test/hotspot/jtreg/serviceability/jvmti/events/FieldAccess/fieldacc03/fieldacc03.java
! test/hotspot/jtreg/serviceability/jvmti/events/FieldAccess/fieldacc04/fieldacc04.java
! test/hotspot/jtreg/serviceability/jvmti/events/FieldModification/fieldmod01/fieldmod01.java
! test/hotspot/jtreg/serviceability/jvmti/events/FieldModification/fieldmod02/fieldmod02.java
! test/hotspot/jtreg/serviceability/jvmti/events/FramePop/framepop01/framepop01.java
! test/hotspot/jtreg/serviceability/jvmti/events/FramePop/framepop02/framepop02.java
! test/hotspot/jtreg/serviceability/jvmti/events/MethodEntry/mentry01/mentry01.java
! test/hotspot/jtreg/serviceability/jvmti/events/MethodEntry/mentry02/mentry02.java
! test/hotspot/jtreg/serviceability/jvmti/events/MethodExit/mexit01/mexit01.java
! test/hotspot/jtreg/serviceability/jvmti/events/MethodExit/mexit02/mexit02.java
! test/hotspot/jtreg/serviceability/jvmti/events/MonitorContendedEnter/mcontenter01/mcontenter01.java
! test/hotspot/jtreg/serviceability/jvmti/events/MonitorContendedEntered/mcontentered01/mcontentered01.java
! test/hotspot/jtreg/serviceability/jvmti/events/MonitorWait/monitorwait01/monitorwait01.java
! test/hotspot/jtreg/serviceability/jvmti/events/MonitorWaited/monitorwaited01/monitorwaited01.java
! test/hotspot/jtreg/serviceability/jvmti/events/SingleStep/singlestep01/singlestep01.java
! test/hotspot/jtreg/serviceability/jvmti/events/SingleStep/singlestep03/singlestep03.java
! test/hotspot/jtreg/serviceability/jvmti/stress/StackTrace/NotSuspended/GetStackTraceNotSuspendedStressTest.java
! test/hotspot/jtreg/serviceability/jvmti/stress/StackTrace/Suspended/GetStackTraceSuspendedStressTest.java
! test/hotspot/jtreg/serviceability/jvmti/stress/ThreadLocalStorage/SetGetThreadLocalStorageStressTest/SetGetThreadLocalStorageStressTest.java
! test/hotspot/jtreg/serviceability/jvmti/thread/GetAllThreads/allthr01/allthr01.java
! test/hotspot/jtreg/serviceability/jvmti/thread/GetCurrentContendedMonitor/contmon01/contmon01.java
! test/hotspot/jtreg/serviceability/jvmti/thread/GetCurrentContendedMonitor/contmon02/contmon02.java
! test/hotspot/jtreg/serviceability/jvmti/thread/GetFrameCount/framecnt01/framecnt01.java
! test/hotspot/jtreg/serviceability/jvmti/thread/GetStackTrace/GetStackTraceCurrentThreadTest/GetStackTraceCurrentThreadTest.java
! test/hotspot/jtreg/serviceability/jvmti/thread/GetStackTrace/getstacktr03/getstacktr03.java
! test/hotspot/jtreg/serviceability/jvmti/thread/GetStackTrace/getstacktr04/getstacktr04.java
! test/hotspot/jtreg/serviceability/jvmti/thread/GetStackTrace/getstacktr05/getstacktr05.java
! test/hotspot/jtreg/serviceability/jvmti/thread/GetStackTrace/getstacktr06/getstacktr06.java
! test/hotspot/jtreg/serviceability/jvmti/thread/GetStackTrace/getstacktr07/getstacktr07.java
! test/hotspot/jtreg/serviceability/jvmti/thread/GetStackTrace/getstacktr08/getstacktr08.java
! test/hotspot/jtreg/serviceability/jvmti/thread/GetThreadInfo/thrinfo01/thrinfo01.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/BreakpointInYieldTest/BreakpointInYieldTest.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/InterruptThreadTest/InterruptThreadTest.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/MethodExitTest/MethodExitTest.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/NullAsCurrentThreadTest/NullAsCurrentThreadTest.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/PinnedTaskTest/PinnedTaskTest.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/RawMonitorTest/RawMonitorTest.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/SelfSuspendDisablerTest/SelfSuspendDisablerTest.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/SuspendResume1/SuspendResume1.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/SuspendResume2/SuspendResume2.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/SuspendResumeAll/SuspendResumeAll.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/VThreadMonitorTest/VThreadMonitorTest.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/VThreadNotifyFramePopTest/VThreadNotifyFramePopTest.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/VThreadTest/VThreadTest.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/VThreadUnsupportedTest/VThreadUnsupportedTest.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/WaitNotifySuspendedVThreadTest/WaitNotifySuspendedVThreadTest.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/premain/AgentWithVThreadTest.java
! test/hotspot/jtreg/vmTestbase/nsk/share/MainWrapper.java
! test/jdk/com/sun/jdi/TestScaffold.java
! test/jdk/java/lang/Thread/BuilderTest.java
! test/jdk/java/lang/Thread/virtual/Collectable.java
! test/jdk/java/lang/Thread/virtual/CustomScheduler.java
! test/jdk/java/lang/Thread/virtual/InterruptHttp.java
! test/jdk/java/lang/Thread/virtual/JfrEvents.java
! test/jdk/java/lang/Thread/virtual/Locking.java
! test/jdk/java/lang/Thread/virtual/NetSockets.java
! test/jdk/java/lang/Thread/virtual/NioChannels.java
! test/jdk/java/lang/Thread/virtual/ParkWithFixedThreadPool.java
! test/jdk/java/lang/Thread/virtual/Parking.java
! test/jdk/java/lang/Thread/virtual/Reflection.java
- test/jdk/java/lang/Thread/virtual/SchedulerCocktail.java
! test/jdk/java/lang/Thread/virtual/ShutdownHook.java
! test/jdk/java/lang/Thread/virtual/StackTraces.java
! test/jdk/java/lang/Thread/virtual/TestHelper.java
! test/jdk/java/lang/Thread/virtual/ThreadAPI.java
! test/jdk/java/lang/Thread/virtual/ThreadLocals.java
! test/jdk/java/lang/Thread/virtual/ThreadPerTaskExecutorTest.java
! test/jdk/java/lang/Thread/virtual/TracePinnedThreads.java
! test/jdk/java/lang/Thread/virtual/WaitNotify.java
! test/jdk/java/lang/Thread/virtual/stress/GetStackTraceALot.java
! test/jdk/java/lang/Thread/virtual/stress/HttpALot.java
! test/jdk/java/lang/Thread/virtual/stress/PinALot.java
! test/jdk/java/lang/Thread/virtual/stress/PingPong.java
! test/jdk/java/lang/Thread/virtual/stress/SleepALot.java
! test/jdk/java/lang/Thread/virtual/stress/TimedGet.java
! test/jdk/java/lang/Thread/virtual/stress/YieldALot.java
! test/jdk/java/lang/management/ThreadMXBean/VirtualThreads.java
! test/jdk/java/util/concurrent/ExecutorService/CloseTest.java
! test/jdk/jdk/jfr/event/runtime/TestThreadEndEvent.java
! test/jdk/jdk/jfr/event/runtime/TestThreadSleepEvent.java
! test/jdk/jdk/jfr/event/runtime/TestThreadStartEvent.java
! test/jdk/jdk/jfr/threading/TestDeepVirtualStackTrace.java
! test/jdk/jdk/jfr/threading/TestManyVirtualThreads.java
! test/jdk/jdk/jfr/threading/TestNestedVirtualThreads.java
! test/lib/jdk/test/lib/process/ProcessTools.java
! test/micro/org/openjdk/bench/loom/Skynet.java
- test/micro/org/openjdk/bench/loom/obsolete/ContVsThread.java
! test/micro/org/openjdk/bench/loom/ring/Ring.java


From duke at openjdk.java.net  Fri Oct  1 20:58:42 2021
From: duke at openjdk.java.net (duke)
Date: Fri, 1 Oct 2021 20:58:42 GMT
Subject: git: openjdk/loom: fibers: add one more detail to the
 JvmtiVTMTDisabler::print_info
Message-ID: <04873a0e-ecc5-4ec8-9050-ec7a6d899f15@openjdk.java.net>

Changeset: 20ba20c9
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-10-01 20:57:01 +0000
URL:       https://git.openjdk.java.net/loom/commit/20ba20c9cf9a99fc5f958123a2c9483d5d122252

add one more detail to the JvmtiVTMTDisabler::print_info

! src/hotspot/share/prims/jvmtiThreadState.cpp


From duke at openjdk.java.net  Fri Oct  1 22:59:53 2021
From: duke at openjdk.java.net (duke)
Date: Fri, 1 Oct 2021 22:59:53 GMT
Subject: git: openjdk/loom: fibers: add one more detail to the start_VTMT
 debugging code
Message-ID: <2eff1553-d8a3-404d-8f6d-c40144921525@openjdk.java.net>

Changeset: 2073a62b
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-10-01 22:58:48 +0000
URL:       https://git.openjdk.java.net/loom/commit/2073a62b983d5c24802b5d02fc89e7f24cdf31bc

add one more detail to the start_VTMT debugging code

! src/hotspot/share/prims/jvmtiThreadState.cpp


From duke at openjdk.java.net  Mon Oct  4 06:36:58 2021
From: duke at openjdk.java.net (duke)
Date: Mon, 4 Oct 2021 06:36:58 GMT
Subject: git: openjdk/loom: fibers: 10 new changesets
Message-ID: <652ceb87-a9ac-4924-aed8-8f4252f92e98@openjdk.java.net>

Changeset: 8dd8404f
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-10-02 08:38:11 +0000
URL:       https://git.openjdk.java.net/loom/commit/8dd8404f057484c016bf9e0e4f225fc707850fb9

add even more details to JvmtiVTMTDisabler debugging info

! src/hotspot/share/prims/jvmtiThreadState.cpp

Changeset: 975bd2fc
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-02 16:08:38 +0000
URL:       https://git.openjdk.java.net/loom/commit/975bd2fce02ac5b1bb2291b5610ad3c91cf37bf2

More test updates in preparation for enable-preview

! test/hotspot/jtreg/ProblemList.txt
! test/hotspot/jtreg/vmTestbase/nsk/jvmti/RedefineClasses/StressRedefine.java
! test/hotspot/jtreg/vmTestbase/nsk/share/MainWrapper.java
! test/hotspot/jtreg/vmTestbase/nsk/share/jdi/JDIThreadFactory.java
! test/hotspot/jtreg/vmTestbase/nsk/share/runner/ThreadsRunner.java

Changeset: 94a2537f
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-02 16:10:10 +0000
URL:       https://git.openjdk.java.net/loom/commit/94a2537ff9968a480d1c632de1e441defc0da981

sun/security/tools/jarsigner/multiRelease/MVJarSigningTest.java failing

! src/java.base/share/classes/jdk/internal/misc/Gate.java
! test/jdk/ProblemList.txt

Changeset: fb226d7f
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-02 16:11:43 +0000
URL:       https://git.openjdk.java.net/loom/commit/fb226d7fd813c334a39cbe686661bdb829e01455

Rename methods to add Now suffix

! src/java.base/share/classes/java/util/concurrent/CompletableFuture.java
! src/java.base/share/classes/java/util/concurrent/ForkJoinTask.java
! src/java.base/share/classes/java/util/concurrent/Future.java
! src/java.base/share/classes/java/util/concurrent/FutureTask.java
! test/jdk/java/lang/Thread/virtual/ThreadPerTaskExecutorTest.java
= test/jdk/java/lang/Thread/virtual/ThreadPerTaskExecutorTest.java.orig
! test/jdk/java/util/concurrent/Future/DefaultMethods.java

Changeset: 564bc09b
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-02 16:12:15 +0000
URL:       https://git.openjdk.java.net/loom/commit/564bc09b88cdf3bb22b7a6d7a1c85a84373b889f

Remove .orig file

- test/jdk/java/lang/Thread/virtual/ThreadPerTaskExecutorTest.java.orig

Changeset: 31101fcd
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-02 16:13:58 +0000
URL:       https://git.openjdk.java.net/loom/commit/31101fcd287be41d270cc78381fc762ea900ea77

Remove methods from early exploration that are not in first preview

! src/java.base/share/classes/java/util/concurrent/ExecutorService.java
- src/java.base/share/classes/java/util/concurrent/ExecutorServiceHelper.java
! src/java.base/share/classes/java/util/concurrent/Executors.java
! test/jdk/java/lang/Thread/virtual/ThreadPerTaskExecutorTest.java
- test/jdk/java/util/concurrent/ExecutorService/InvokeAllTest.java
- test/jdk/java/util/concurrent/ExecutorService/SubmitTasksTest.java

Changeset: cad26ce7
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-02 16:19:01 +0000
URL:       https://git.openjdk.java.net/loom/commit/cad26ce74c98e28854f02106117fe03741f69ba0

API for custom schedulers not required for initial preview

! src/java.base/share/classes/java/lang/Thread.java
! src/java.base/share/classes/java/lang/ThreadBuilders.java
! src/java.base/share/classes/java/lang/VirtualThread.java
! test/jdk/java/lang/Thread/BuilderTest.java
! test/jdk/java/lang/Thread/virtual/ParkWithFixedThreadPool.java

Changeset: 6caee546
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-02 17:43:21 +0000
URL:       https://git.openjdk.java.net/loom/commit/6caee54654a33666a421a81b82a4dbe47f021956

Add @PreviewFeature to new APIs

! src/java.base/share/classes/java/lang/Thread.java
! src/java.base/share/classes/java/util/concurrent/Executors.java

Changeset: 76d876d2
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-02 21:47:54 +0000
URL:       https://git.openjdk.java.net/loom/commit/76d876d247938f9c5d31524db0370af648826ff0

Add @PreviewFeature to JDK APIs

! src/java.base/share/classes/module-info.java
! src/jdk.jdi/share/classes/com/sun/jdi/ThreadReference.java
! src/jdk.jdi/share/classes/com/sun/jdi/request/ThreadDeathRequest.java
! src/jdk.jdi/share/classes/com/sun/jdi/request/ThreadStartRequest.java
! src/jdk.management/share/classes/com/sun/management/HotSpotDiagnosticMXBean.java
- src/jdk.management/share/classes/com/sun/management/Threads.java

Changeset: f41be80c
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-03 16:32:38 +0000
URL:       https://git.openjdk.java.net/loom/commit/f41be80c290caef9020ae76c6cfdd99ccdfea6c0

Attached thread may execute arbitrary code before fully initialized

! src/hotspot/share/classfile/javaClasses.cpp


From duke at openjdk.java.net  Mon Oct  4 18:07:44 2021
From: duke at openjdk.java.net (duke)
Date: Mon, 4 Oct 2021 18:07:44 GMT
Subject: git: openjdk/loom: fibers: 3 new changesets
Message-ID: <6513fa35-9a28-4749-81e6-e07ac52fb626@openjdk.java.net>

Changeset: c06e6a28
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-04 10:23:04 +0000
URL:       https://git.openjdk.java.net/loom/commit/c06e6a28a95be2d59ef08db46b0a572bd2f19306

RecordedThread.isVirtual should be preview API

! src/jdk.jfr/share/classes/jdk/jfr/consumer/RecordedThread.java

Changeset: f834a366
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-04 10:26:46 +0000
URL:       https://git.openjdk.java.net/loom/commit/f834a36670c396c63d6467554dadb308c14c19fc

jdk.jfr needs PreviewFeature

! src/java.base/share/classes/module-info.java

Changeset: 46690db2
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-04 18:00:14 +0000
URL:       https://git.openjdk.java.net/loom/commit/46690db2fb1169a87a492299fade3956a9a6d775

Missing checks for null and out of bounds

! src/java.base/share/classes/java/io/PrintWriter.java
! src/java.base/share/classes/java/io/Writer.java


From duke at openjdk.java.net  Tue Oct  5 08:49:08 2021
From: duke at openjdk.java.net (duke)
Date: Tue, 5 Oct 2021 08:49:08 GMT
Subject: git: openjdk/loom: fibers: 3 new changesets
Message-ID: <c53d90a8-cce1-4adb-9dce-b415438a20b2@openjdk.java.net>

Changeset: b1a75554
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-05 08:41:37 +0000
URL:       https://git.openjdk.java.net/loom/commit/b1a75554ee623699ed3799a8efb5877789d8a57c

Exclude java/util/Properties/StoreReproducibilityTest.java from tier4, depends on SM

! test/jdk/ProblemList-vthread.txt

Changeset: 9f945f81
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-05 09:44:07 +0000
URL:       https://git.openjdk.java.net/loom/commit/9f945f81ccbe4827c106f3bfdbdcdd53ec18afbc

Allow ThreadAPI run with the wrapper in tier4

! test/jdk/java/lang/Thread/virtual/ThreadAPI.java

Changeset: 4406b8ee
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-05 09:44:50 +0000
URL:       https://git.openjdk.java.net/loom/commit/4406b8ee7233d4765f5e1b27d09e9fb0b1e09dbe

JNI attached threads should get unique tid; minor javadoc fixes

! src/java.base/share/classes/java/lang/Thread.java


From shade at openjdk.java.net  Tue Oct  5 10:01:49 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Tue, 5 Oct 2021 10:01:49 GMT
Subject: RFR: Make Loom buildable on x86_32 [v3]
In-Reply-To: <0-D-rFniyQnPM5gVHXWf4pbg5vnMP8TdAtqkoKbFmSU=.0807e9e7-3439-4133-911e-c8ae83781659@github.com>
References: <0-D-rFniyQnPM5gVHXWf4pbg5vnMP8TdAtqkoKbFmSU=.0807e9e7-3439-4133-911e-c8ae83781659@github.com>
Message-ID: <2MKmOB3yCIrnyg2SapgSW8596rtKLgoCe_VOF3fhdTk=.bd30c2b8-85bf-43ba-b30c-072a01069222@github.com>

> This PRs make Loom workspace at least buildable on x86_32. 
> 
> Since jlink/jmod run build JDK, the JDK itself has to start well, without touching Loom code. Current patch only does `make images` well, trying to run `tier1` with `x86_32` quickly fails with multiple errors -- I suspect deopt, G1 and other changes are subtly broken on x86_32. I shall continue the fixes in another PR, and this push would unhoard the generic 32-bit fixes in format specifiers.
> 
> Additional testing:
>  - [x] 10x `CONF=linux-x86-server-fastdebug make clean-images images`

Aleksey Shipilev 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 seven additional commits since the last revision:

 - Fix another register clash on x86_32 (rcx is used later as rthread)
 - Merge branch 'fibers' into basic-x86-32-builds
 - Merge branch 'fibers' into basic-x86-32-builds
 - More accurate register saving
 - More precise post_call_nops
 - Select the register better
 - Linux x86_32 builds fine

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

Changes:
  - all: https://git.openjdk.java.net/loom/pull/65/files
  - new: https://git.openjdk.java.net/loom/pull/65/files/db6a87ae..2d420624

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=loom&pr=65&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=loom&pr=65&range=01-02

  Stats: 2866 lines in 136 files changed: 385 ins; 2202 del; 279 mod
  Patch: https://git.openjdk.java.net/loom/pull/65.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/65/head:pull/65

PR: https://git.openjdk.java.net/loom/pull/65

From shade at openjdk.java.net  Tue Oct  5 10:49:13 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Tue, 5 Oct 2021 10:49:13 GMT
Subject: RFR: Make Loom buildable on x86_32 [v3]
In-Reply-To: <2MKmOB3yCIrnyg2SapgSW8596rtKLgoCe_VOF3fhdTk=.bd30c2b8-85bf-43ba-b30c-072a01069222@github.com>
References: <0-D-rFniyQnPM5gVHXWf4pbg5vnMP8TdAtqkoKbFmSU=.0807e9e7-3439-4133-911e-c8ae83781659@github.com>
 <2MKmOB3yCIrnyg2SapgSW8596rtKLgoCe_VOF3fhdTk=.bd30c2b8-85bf-43ba-b30c-072a01069222@github.com>
Message-ID: <JiNLP0JI8E2PbGHWE8u0vrxQxBM3TXB3kLG7zVXov3I=.5e070b65-4c07-42dc-b5c6-8d4afeb6a0d0@github.com>

On Tue, 5 Oct 2021 10:01:49 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> This PRs make Loom workspace at least buildable on x86_32. 
>> 
>> Since jlink/jmod run build JDK, the JDK itself has to start well, without touching Loom code. Current patch passes `make images` and `tier1` on `x86_32`, with predictable test failures on Loom-specific tests. I shall continue with the actual x86_32 support in another PR. Meanwhile, this PR should make x86_32 builds (e.g. in GHA) and the rest of non-Loom-specific tests happy. This would also protect from introducing more 32-bit uncleanliness in shared code.
>> 
>> Additional testing:
>>  - [x] 10x `CONF=linux-x86-server-fastdebug make clean-images images`
>>  - [x] Linux x86_32 `tier1` passes (with Loom-specific test failures)
>
> Aleksey Shipilev 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 seven additional commits since the last revision:
> 
>  - Fix another register clash on x86_32 (rcx is used later as rthread)
>  - Merge branch 'fibers' into basic-x86-32-builds
>  - Merge branch 'fibers' into basic-x86-32-builds
>  - More accurate register saving
>  - More precise post_call_nops
>  - Select the register better
>  - Linux x86_32 builds fine

All right, I think I nailed most of the generic x86_32 bugs here, and it builds and runs non-Loom code fine. 

Here it is building Linux x86 cleanly in GHA:
  https://github.com/shipilev/loom/runs/3801890849
  https://github.com/shipilev/loom/runs/3801890884

Please take a look @pron, @AlanBateman.

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

PR: https://git.openjdk.java.net/loom/pull/65

From duke at openjdk.java.net  Tue Oct  5 11:38:26 2021
From: duke at openjdk.java.net (duke)
Date: Tue, 5 Oct 2021 11:38:26 GMT
Subject: git: openjdk/loom: fibers: Don't allow -Xint with
 -XX:+SegmentedCodeCache
Message-ID: <f048dd6d-7b90-493d-9647-fde949edbc10@openjdk.java.net>

Changeset: 9e0807d7
Author:    Rickard B?ckman <rickard.backman at oracle.com>
Date:      2021-10-05 23:36:36 +0000
URL:       https://git.openjdk.java.net/loom/commit/9e0807d70ba967f4493d3fe3468c40a7a1731aef

Don't allow -Xint with -XX:+SegmentedCodeCache

! src/hotspot/share/runtime/arguments.cpp


From shade at openjdk.java.net  Tue Oct  5 19:17:58 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Tue, 5 Oct 2021 19:17:58 GMT
Subject: RFR: Loom: PPC64, S390, ARM32, Zero stubs
Message-ID: <mJ6aRucBnPALk5awUawdzWfmGYtdfb1sD0yojg4B84I=.35685310-49c0-42fd-98a4-1f2f5b7c5b08@github.com>

This WIP provides enough stubs to make Loom cross-compilable to PPC64, S390, ARM32 and Zero. This should be enough to get the sense where the shared code actually platform-specific (referencing stuff from `frame` that is platform-specific), what should be implemented for a platform, and also should be enough to get GHA build checks green. Note current patch does not implement Loom on these platforms, but merely provides the absolute basic build capabilities.

Note that ARM32 builds would not be clean until #65 is integrated with 32-bit cleanliness fixes.

Additional testing:
 - [x] Linux x86_64 tier1_loom still passes
 - [x] Linux PPC64 cross-compilation
 - [x] Linux S390 cross-compilation
 - [x] Linux ARM32 cross-compilation
 - [x] Linux x86_64 Zero (Hotspot) compilation

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

Commit messages:
 - More whitespace
 - Self-review fixes
 - PPC64, S390, ARM32, Zero stubs

Changes: https://git.openjdk.java.net/loom/pull/72/files
 Webrev: https://webrevs.openjdk.java.net/?repo=loom&pr=72&range=00
  Stats: 2286 lines in 49 files changed: 2203 ins; 33 del; 50 mod
  Patch: https://git.openjdk.java.net/loom/pull/72.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/72/head:pull/72

PR: https://git.openjdk.java.net/loom/pull/72

From levi at leviaul.com  Wed Oct  6 01:34:38 2021
From: levi at leviaul.com (Levi Aul)
Date: Tue, 5 Oct 2021 18:34:38 -0700
Subject: Interaction between virtual threads and ForkJoinPool.commonPool
Message-ID: <CAHQt1Y9EN_cXmTd5jY7GVO2=bHfoJY-Ax3ssm0sVtYPhGbDGzQ@mail.gmail.com>

I have some work projects that have third-party-lib dependencies which
schedule background work by creating ForkJoinTasks, and then explicitly
submitting those ForkJoinTasks to the ForkJoinPool.commonPool. These
background workloads in turn do blocking IO; and so (with high-enough
concurrency) they end up blocking the whole set of ForkJoinPool.commonPool
worker threads for long periods, resulting in awful latencies as other
quick tasks scheduled to the commonPool never start.

I'm looking into Loom's virtual threads to solve this problem. But, from
what I've read so far, the Loom changes by themselves don't seem to do
anything to "enhance" or "co-opt" the ForkJoinPool.commonPool, and so won't
be of much help in my situation.

Is this correct, or have I missed something? Is it possible under the
Loom-branch JVM to configure the ForkJoinPool.commonPool to act as a dumb
proxy for a VirtualThreadExecutor, such that tasks run against the
commonPool get unbounded IO concurrency? Or is it even unnecessary (i.e. do
*all* ForkJoinPools in Loom park their ForkJoinTasks when they hit
low-level runtime blocking-yield-points, such that all ForkJoinTasks are
equivalent to "virtual threads" in behavior, even if the ones that are
explicitly ForkJoinTasks have no associated isVirtual=true Thread object)?

Also, to clarify: if a CompletableFuture/Callable/etc. is scheduled onto a
Loom virtual thread (which is running on a ForkJoinPool-based scheduler),
is that workload then implicitly running in the scope of a ForkJoinTask,
such that it has a thread-local reference to its (carrier thread's)
ForkJoinPool, such that calls that implicitly schedule "through" that
reference if available (e.g. stream().parallel()) will schedule as Loom
virtual threads? Or do these just end up using the ForkJoinPool.commonPool
as well?

From Alan.Bateman at oracle.com  Wed Oct  6 08:21:10 2021
From: Alan.Bateman at oracle.com (Alan Bateman)
Date: Wed, 6 Oct 2021 09:21:10 +0100
Subject: Interaction between virtual threads and ForkJoinPool.commonPool
In-Reply-To: <CAHQt1Y9EN_cXmTd5jY7GVO2=bHfoJY-Ax3ssm0sVtYPhGbDGzQ@mail.gmail.com>
References: <CAHQt1Y9EN_cXmTd5jY7GVO2=bHfoJY-Ax3ssm0sVtYPhGbDGzQ@mail.gmail.com>
Message-ID: <ba65aea0-27c2-d31e-4dce-35776e467c3b@oracle.com>

On 06/10/2021 02:34, Levi Aul wrote:
> I have some work projects that have third-party-lib dependencies which
> schedule background work by creating ForkJoinTasks, and then explicitly
> submitting those ForkJoinTasks to the ForkJoinPool.commonPool. These
> background workloads in turn do blocking IO; and so (with high-enough
> concurrency) they end up blocking the whole set of ForkJoinPool.commonPool
> worker threads for long periods, resulting in awful latencies as other
> quick tasks scheduled to the commonPool never start.
>
> I'm looking into Loom's virtual threads to solve this problem. But, from
> what I've read so far, the Loom changes by themselves don't seem to do
> anything to "enhance" or "co-opt" the ForkJoinPool.commonPool, and so won't
> be of much help in my situation.
>
> Is this correct, or have I missed something?
That is correct, the FJP common pool works as before.


> Is it possible under the
> Loom-branch JVM to configure the ForkJoinPool.commonPool to act as a dumb
> proxy for a VirtualThreadExecutor, such that tasks run against the
> commonPool get unbounded IO concurrency? Or is it even unnecessary (i.e. do
> *all* ForkJoinPools in Loom park their ForkJoinTasks when they hit
> low-level runtime blocking-yield-points, such that all ForkJoinTasks are
> equivalent to "virtual threads" in behavior, even if the ones that are
> explicitly ForkJoinTasks have no associated isVirtual=true Thread object)?
>
> Also, to clarify: if a CompletableFuture/Callable/etc. is scheduled onto a
> Loom virtual thread (which is running on a ForkJoinPool-based scheduler),
> is that workload then implicitly running in the scope of a ForkJoinTask,
> such that it has a thread-local reference to its (carrier thread's)
> ForkJoinPool, such that calls that implicitly schedule "through" that
> reference if available (e.g. stream().parallel()) will schedule as Loom
> virtual threads? Or do these just end up using the ForkJoinPool.commonPool
> as well?
If code executing in a virtual thread uses stream parallel() or 
CF.xxAsync then the tasks run in the common pool as before (or the CF 
default executor if overridden). Yes, this is area that needs further 
attention and exploration. There was some discussion about it early on 
but it was kicked down the road to give time to figure out the 
programming model and core implementation. So I expect it will come back.

-Alan



From shade at openjdk.java.net  Fri Oct  8 08:31:28 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Fri, 8 Oct 2021 08:31:28 GMT
Subject: RFR: Loom: PPC64, S390, ARM32, Zero stubs
In-Reply-To: <mJ6aRucBnPALk5awUawdzWfmGYtdfb1sD0yojg4B84I=.35685310-49c0-42fd-98a4-1f2f5b7c5b08@github.com>
References: <mJ6aRucBnPALk5awUawdzWfmGYtdfb1sD0yojg4B84I=.35685310-49c0-42fd-98a4-1f2f5b7c5b08@github.com>
Message-ID: <m4oTQI6JZNPcPuZTEVKrNzmkqIl_FCy2QlDzRFtwiOM=.af620041-7de0-40b9-83be-741b0db74699@github.com>

On Tue, 5 Oct 2021 16:44:01 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> This WIP provides enough stubs to make Loom cross-compilable to PPC64, S390, ARM32 and Zero. This should be enough to get the sense where the shared code actually platform-specific (referencing stuff from `frame` that is platform-specific), what should be implemented for a platform, and also should be enough to get GHA build checks green. Note current patch does not implement Loom on these platforms, but merely provides the absolute basic build capabilities.
> 
> Note that ARM32 builds would not be clean until #65 is integrated with 32-bit cleanliness fixes.
> 
> Additional testing:
>  - [x] Linux x86_64 tier1_loom still passes
>  - [x] Linux PPC64 cross-compilation
>  - [x] Linux S390 cross-compilation
>  - [x] Linux ARM32 cross-compilation
>  - [x] Linux x86_64 Zero (Hotspot) compilation

Any comments? I would like to have it integrated.

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

PR: https://git.openjdk.java.net/loom/pull/72

From shade at openjdk.java.net  Fri Oct  8 08:31:31 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Fri, 8 Oct 2021 08:31:31 GMT
Subject: RFR: Make Loom buildable on x86_32 [v3]
In-Reply-To: <2MKmOB3yCIrnyg2SapgSW8596rtKLgoCe_VOF3fhdTk=.bd30c2b8-85bf-43ba-b30c-072a01069222@github.com>
References: <0-D-rFniyQnPM5gVHXWf4pbg5vnMP8TdAtqkoKbFmSU=.0807e9e7-3439-4133-911e-c8ae83781659@github.com>
 <2MKmOB3yCIrnyg2SapgSW8596rtKLgoCe_VOF3fhdTk=.bd30c2b8-85bf-43ba-b30c-072a01069222@github.com>
Message-ID: <Jv9mO8cJnOfsYXP77Dr2Bp6fT7MoqHPGyclU2h7XpWI=.3a9f39e5-5007-43bf-b7ad-55fa544fed8e@github.com>

On Tue, 5 Oct 2021 10:01:49 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> This PRs make Loom workspace at least buildable on x86_32. 
>> 
>> Since jlink/jmod run build JDK, the JDK itself has to start well, without touching Loom code. Current patch passes `make images` and `tier1` on `x86_32`, with predictable test failures on Loom-specific tests. I shall continue with the actual x86_32 support in another PR. Meanwhile, this PR should make x86_32 builds (e.g. in GHA) and the rest of non-Loom-specific tests happy. This would also protect from introducing more 32-bit uncleanliness in shared code.
>> 
>> Additional testing:
>>  - [x] 10x `CONF=linux-x86-server-fastdebug make clean-images images`
>>  - [x] Linux x86_32 `tier1` passes (with Loom-specific test failures)
>
> Aleksey Shipilev 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 seven additional commits since the last revision:
> 
>  - Fix another register clash on x86_32 (rcx is used later as rthread)
>  - Merge branch 'fibers' into basic-x86-32-builds
>  - Merge branch 'fibers' into basic-x86-32-builds
>  - More accurate register saving
>  - More precise post_call_nops
>  - Select the register better
>  - Linux x86_32 builds fine

Any comments? I would like to have it integrated.

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

PR: https://git.openjdk.java.net/loom/pull/65

From duke at openjdk.java.net  Fri Oct  8 09:32:26 2021
From: duke at openjdk.java.net (duke)
Date: Fri, 8 Oct 2021 09:32:26 GMT
Subject: git: openjdk/loom: fibers: Re-include tests that failed because of
 OOME in CodeCache
Message-ID: <98e56114-4709-4a8a-bd02-43cc08acfac9@openjdk.java.net>

Changeset: 63f3163c
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2021-10-08 10:31:38 +0000
URL:       https://git.openjdk.java.net/loom/commit/63f3163c82a7681bf872d91d4329e7e5d3518ac6

Re-include tests that failed because of OOME in CodeCache

! test/hotspot/jtreg/ProblemList-vthread-Xcomp.txt
! test/jdk/ProblemList-vthread-Xcomp.txt


From rpressler at openjdk.java.net  Fri Oct  8 10:06:23 2021
From: rpressler at openjdk.java.net (Ron Pressler)
Date: Fri, 8 Oct 2021 10:06:23 GMT
Subject: RFR: Make Loom buildable on x86_32 [v3]
In-Reply-To: <2MKmOB3yCIrnyg2SapgSW8596rtKLgoCe_VOF3fhdTk=.bd30c2b8-85bf-43ba-b30c-072a01069222@github.com>
References: <0-D-rFniyQnPM5gVHXWf4pbg5vnMP8TdAtqkoKbFmSU=.0807e9e7-3439-4133-911e-c8ae83781659@github.com>
 <2MKmOB3yCIrnyg2SapgSW8596rtKLgoCe_VOF3fhdTk=.bd30c2b8-85bf-43ba-b30c-072a01069222@github.com>
Message-ID: <yYMw9g1TX92bF6QRg79P5BlIgGlT0ClkT4-qqqX-83U=.cf0ecfff-cf0c-4ee1-91da-5cd602427a35@github.com>

On Tue, 5 Oct 2021 10:01:49 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> This PRs make Loom workspace at least buildable on x86_32. 
>> 
>> Since jlink/jmod run build JDK, the JDK itself has to start well, without touching Loom code. Current patch passes `make images` and `tier1` on `x86_32`, with predictable test failures on Loom-specific tests. I shall continue with the actual x86_32 support in another PR. Meanwhile, this PR should make x86_32 builds (e.g. in GHA) and the rest of non-Loom-specific tests happy. This would also protect from introducing more 32-bit uncleanliness in shared code.
>> 
>> Additional testing:
>>  - [x] 10x `CONF=linux-x86-server-fastdebug make clean-images images`
>>  - [x] Linux x86_32 `tier1` passes (with Loom-specific test failures)
>
> Aleksey Shipilev 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 seven additional commits since the last revision:
> 
>  - Fix another register clash on x86_32 (rcx is used later as rthread)
>  - Merge branch 'fibers' into basic-x86-32-builds
>  - Merge branch 'fibers' into basic-x86-32-builds
>  - More accurate register saving
>  - More precise post_call_nops
>  - Select the register better
>  - Linux x86_32 builds fine

Sorry, I expect I'll have time to review it next week.

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

PR: https://git.openjdk.java.net/loom/pull/65

From shade at openjdk.java.net  Fri Oct  8 14:23:38 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Fri, 8 Oct 2021 14:23:38 GMT
Subject: RFR: Remove the remaining mentions of AOT
Message-ID: <simCizYCbVsZyZ_t3oLKV7rC571VvgfpJflHdEbcKnI=.ba9b98e0-fee9-4a32-a4bc-5ed0f8ba3de8@github.com>

I am looking at [current Loom webrev against mainline](https://builds.shipilev.net/patch-openjdk-loom-fibers/), and notice there are left-overs after [JDK-8264805](https://bugs.openjdk.java.net/browse/JDK-8264805) removed AOT in mainline. This is probably the result of the merge that kept stale Loom-repo files whereas they were removed upstream.

Additional testing:
 - [x] Linux x86_64 fastdebug `tier1_loom` still passes.

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

Commit messages:
 - Remove the remaining mentions of AOT

Changes: https://git.openjdk.java.net/loom/pull/73/files
 Webrev: https://webrevs.openjdk.java.net/?repo=loom&pr=73&range=00
  Stats: 432 lines in 3 files changed: 0 ins; 430 del; 2 mod
  Patch: https://git.openjdk.java.net/loom/pull/73.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/73/head:pull/73

PR: https://git.openjdk.java.net/loom/pull/73

From levi at leviaul.com  Fri Oct  8 20:19:14 2021
From: levi at leviaul.com (Levi Aul)
Date: Fri, 8 Oct 2021 13:19:14 -0700
Subject: Interaction between virtual threads and ForkJoinPool.commonPool
In-Reply-To: <ba65aea0-27c2-d31e-4dce-35776e467c3b@oracle.com>
References: <CAHQt1Y9EN_cXmTd5jY7GVO2=bHfoJY-Ax3ssm0sVtYPhGbDGzQ@mail.gmail.com>
 <ba65aea0-27c2-d31e-4dce-35776e467c3b@oracle.com>
Message-ID: <CAHQt1Y-pevfwdpGeWq3MzgQ7jATs3yesJN6DsdZvjGSHNuxpLA@mail.gmail.com>

Thanks, this is useful information.

Specifically for parallel stream operations in code we control (which we
have a lot of), is it currently possible, with considerable effort, to
build a proxy object around a threadPerTaskExecutor, that "looks like" a
ForkJoinPool to java.util.stream.AbstractTask et al, so that we could
submit parallel-stream workloads to this fake FJP and have it schedule the
ForkJoinTasks onto virtual-threads? I can't see any way of accomplishing
this myself (save for forking the JVM further), as ForkJoinWorkerThread
isn't an interface but a subclass; but I'm hoping you folks know more
secrets of the internals of java.util.concurrent than I do.

Given the current state of the Loom API, what would you recommend as the
current/tentative "most idiomatic" approach for explicitly using virtual
threads to parallelize e.g. an expensive IO-blocking call inside a mapping
closure in a stream pipeline? Would it be the obvious?i.e. lift the
expensive IO-blocking calls out of the pipeline, with code before the
pipeline first scheduling the operations onto a virtualThreadExecutor,
blocking for all those futures to resolve, and then accessing the
resolved futures from within the pipeline once there's no longer a
possibility of IO-blocking? Or is there something cleaner/simpler that can
be done here?

On Wed, Oct 6, 2021 at 1:21 AM Alan Bateman <Alan.Bateman at oracle.com> wrote:

> On 06/10/2021 02:34, Levi Aul wrote:
> > I have some work projects that have third-party-lib dependencies which
> > schedule background work by creating ForkJoinTasks, and then explicitly
> > submitting those ForkJoinTasks to the ForkJoinPool.commonPool. These
> > background workloads in turn do blocking IO; and so (with high-enough
> > concurrency) they end up blocking the whole set of
> ForkJoinPool.commonPool
> > worker threads for long periods, resulting in awful latencies as other
> > quick tasks scheduled to the commonPool never start.
> >
> > I'm looking into Loom's virtual threads to solve this problem. But, from
> > what I've read so far, the Loom changes by themselves don't seem to do
> > anything to "enhance" or "co-opt" the ForkJoinPool.commonPool, and so
> won't
> > be of much help in my situation.
> >
> > Is this correct, or have I missed something?
> That is correct, the FJP common pool works as before.
>
>
> > Is it possible under the
> > Loom-branch JVM to configure the ForkJoinPool.commonPool to act as a dumb
> > proxy for a VirtualThreadExecutor, such that tasks run against the
> > commonPool get unbounded IO concurrency? Or is it even unnecessary (i.e.
> do
> > *all* ForkJoinPools in Loom park their ForkJoinTasks when they hit
> > low-level runtime blocking-yield-points, such that all ForkJoinTasks are
> > equivalent to "virtual threads" in behavior, even if the ones that are
> > explicitly ForkJoinTasks have no associated isVirtual=true Thread
> object)?
> >
> > Also, to clarify: if a CompletableFuture/Callable/etc. is scheduled onto
> a
> > Loom virtual thread (which is running on a ForkJoinPool-based scheduler),
> > is that workload then implicitly running in the scope of a ForkJoinTask,
> > such that it has a thread-local reference to its (carrier thread's)
> > ForkJoinPool, such that calls that implicitly schedule "through" that
> > reference if available (e.g. stream().parallel()) will schedule as Loom
> > virtual threads? Or do these just end up using the
> ForkJoinPool.commonPool
> > as well?
> If code executing in a virtual thread uses stream parallel() or
> CF.xxAsync then the tasks run in the common pool as before (or the CF
> default executor if overridden). Yes, this is area that needs further
> attention and exploration. There was some discussion about it early on
> but it was kicked down the road to give time to figure out the
> programming model and core implementation. So I expect it will come back.
>
> -Alan
>
>
>

From alanb at openjdk.java.net  Sat Oct  9 06:03:22 2021
From: alanb at openjdk.java.net (Alan Bateman)
Date: Sat, 9 Oct 2021 06:03:22 GMT
Subject: RFR: Remove the remaining mentions of AOT
In-Reply-To: <simCizYCbVsZyZ_t3oLKV7rC571VvgfpJflHdEbcKnI=.ba9b98e0-fee9-4a32-a4bc-5ed0f8ba3de8@github.com>
References: <simCizYCbVsZyZ_t3oLKV7rC571VvgfpJflHdEbcKnI=.ba9b98e0-fee9-4a32-a4bc-5ed0f8ba3de8@github.com>
Message-ID: <hhO9xziCtAETnPUhx3t9xgCACLL9XQwr30bJBHp4klc=.e83ff463-6de6-4b96-9af7-62780085282d@github.com>

On Fri, 8 Oct 2021 14:17:32 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> I am looking at [current Loom webrev against mainline](https://builds.shipilev.net/patch-openjdk-loom-fibers/), and notice there are left-overs after [JDK-8264805](https://bugs.openjdk.java.net/browse/JDK-8264805) removed AOT in mainline. This is probably the result of the merge that kept stale Loom-repo files whereas they were removed upstream.
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug `tier1_loom` still passes.

I noticed these two sources recently too and was wondering why they were still in the repo.

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

Marked as reviewed by alanb (Committer).

PR: https://git.openjdk.java.net/loom/pull/73

From duke at openjdk.java.net  Sun Oct 10 07:50:14 2021
From: duke at openjdk.java.net (duke)
Date: Sun, 10 Oct 2021 07:50:14 GMT
Subject: git: openjdk/loom: fibers: 7 new changesets
Message-ID: <55c22b63-7c75-4cfd-b7b5-cb5616268619@openjdk.java.net>

Changeset: 959d10c4
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-08 13:31:15 +0000
URL:       https://git.openjdk.java.net/loom/commit/959d10c4170561dc2d1733999eacf7a14667cd52

Clarified wording

! src/java.base/share/classes/java/lang/Thread.java

Changeset: 63564ada
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-09 15:05:54 +0000
URL:       https://git.openjdk.java.net/loom/commit/63564adadedd7f42be89a1095bb6b5f69c424113

Default to 1 unparker

! src/java.base/share/classes/java/lang/VirtualThread.java

Changeset: 723ac25a
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-09 15:44:10 +0000
URL:       https://git.openjdk.java.net/loom/commit/723ac25a15d4bd157e522c752ab53c40619c90b4

Test needs --enable-preview

! test/jdk/com/sun/management/HotSpotDiagnosticMXBean/DumpThreads.java

Changeset: e014a923
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-09 15:50:34 +0000
URL:       https://git.openjdk.java.net/loom/commit/e014a9231b75e3690ad4c348403335d7f786456e

ThreadMXBean/VirtualThreads.java test needs to set scheduler

! test/jdk/java/lang/management/ThreadMXBean/VirtualThreads.java

Changeset: 3a735c6f
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-09 17:13:52 +0000
URL:       https://git.openjdk.java.net/loom/commit/3a735c6f776f32161f982b7f15f4dd01f7e68ffc

Fix copyright header

! src/hotspot/cpu/aarch64/continuation_aarch64.inline.hpp

Changeset: e429b52f
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-09 19:30:17 +0000
URL:       https://git.openjdk.java.net/loom/commit/e429b52f8c136604a22ddda5615ac5466ef5c6be

Fix copyright header

! src/jdk.jdi/share/classes/com/sun/jdi/ThreadReference.java

Changeset: e71a1e2f
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-10 08:44:10 +0000
URL:       https://git.openjdk.java.net/loom/commit/e71a1e2f2c5b80265b76cbdd62c0d4239ee550f0

Unexclude potentially stale entries, re-order/cleanup

! test/hotspot/jtreg/ProblemList.txt


From shade at openjdk.java.net  Mon Oct 11 06:12:35 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Mon, 11 Oct 2021 06:12:35 GMT
Subject: Integrated: Remove the remaining mentions of AOT
In-Reply-To: <simCizYCbVsZyZ_t3oLKV7rC571VvgfpJflHdEbcKnI=.ba9b98e0-fee9-4a32-a4bc-5ed0f8ba3de8@github.com>
References: <simCizYCbVsZyZ_t3oLKV7rC571VvgfpJflHdEbcKnI=.ba9b98e0-fee9-4a32-a4bc-5ed0f8ba3de8@github.com>
Message-ID: <4djA9ThYdJNmBBw9X9Ktec7EkWT44DivFrR3Hm8F3VI=.3e4013a4-ba27-47ce-8b4a-ffd06d2d19c5@github.com>

On Fri, 8 Oct 2021 14:17:32 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> I am looking at [current Loom webrev against mainline](https://builds.shipilev.net/patch-openjdk-loom-fibers/), and notice there are left-overs after [JDK-8264805](https://bugs.openjdk.java.net/browse/JDK-8264805) removed AOT in mainline. This is probably the result of the merge that kept stale Loom-repo files whereas they were removed upstream.
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug `tier1_loom` still passes.

This pull request has now been integrated.

Changeset: 2fed93f2
Author:    Aleksey Shipilev <shade at openjdk.org>
Committer: Alan Bateman <alanb at openjdk.org>
URL:       https://git.openjdk.java.net/loom/commit/2fed93f2954bb5dc6edef4b7e38733b093c4cdc5
Stats:     432 lines in 3 files changed: 0 ins; 430 del; 2 mod

Remove the remaining mentions of AOT

Reviewed-by: alanb

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

PR: https://git.openjdk.java.net/loom/pull/73

From rpressler at openjdk.java.net  Mon Oct 11 09:25:28 2021
From: rpressler at openjdk.java.net (Ron Pressler)
Date: Mon, 11 Oct 2021 09:25:28 GMT
Subject: RFR: Make Loom buildable on x86_32 [v3]
In-Reply-To: <2MKmOB3yCIrnyg2SapgSW8596rtKLgoCe_VOF3fhdTk=.bd30c2b8-85bf-43ba-b30c-072a01069222@github.com>
References: <0-D-rFniyQnPM5gVHXWf4pbg5vnMP8TdAtqkoKbFmSU=.0807e9e7-3439-4133-911e-c8ae83781659@github.com>
 <2MKmOB3yCIrnyg2SapgSW8596rtKLgoCe_VOF3fhdTk=.bd30c2b8-85bf-43ba-b30c-072a01069222@github.com>
Message-ID: <VFbQNQjcuAyf9M68HPgtQT0SOifuWAdN9oRAWTrQEm8=.50e3eae5-e85f-46c6-856f-6b5249afe79a@github.com>

On Tue, 5 Oct 2021 10:01:49 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> This PRs make Loom workspace at least buildable on x86_32. 
>> 
>> Since jlink/jmod run build JDK, the JDK itself has to start well, without touching Loom code. Current patch passes `make images` and `tier1` on `x86_32`, with predictable test failures on Loom-specific tests. I shall continue with the actual x86_32 support in another PR. Meanwhile, this PR should make x86_32 builds (e.g. in GHA) and the rest of non-Loom-specific tests happy. This would also protect from introducing more 32-bit uncleanliness in shared code.
>> 
>> Additional testing:
>>  - [x] 10x `CONF=linux-x86-server-fastdebug make clean-images images`
>>  - [x] Linux x86_32 `tier1` passes (with Loom-specific test failures)
>
> Aleksey Shipilev 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 seven additional commits since the last revision:
> 
>  - Fix another register clash on x86_32 (rcx is used later as rthread)
>  - Merge branch 'fibers' into basic-x86-32-builds
>  - Merge branch 'fibers' into basic-x86-32-builds
>  - More accurate register saving
>  - More precise post_call_nops
>  - Select the register better
>  - Linux x86_32 builds fine

Marked as reviewed by rpressler (Lead).

You're good to go. Thank you for this!

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

PR: https://git.openjdk.java.net/loom/pull/65

From shade at openjdk.java.net  Mon Oct 11 09:30:23 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Mon, 11 Oct 2021 09:30:23 GMT
Subject: RFR: Make Loom buildable on x86_32 [v3]
In-Reply-To: <2MKmOB3yCIrnyg2SapgSW8596rtKLgoCe_VOF3fhdTk=.bd30c2b8-85bf-43ba-b30c-072a01069222@github.com>
References: <0-D-rFniyQnPM5gVHXWf4pbg5vnMP8TdAtqkoKbFmSU=.0807e9e7-3439-4133-911e-c8ae83781659@github.com>
 <2MKmOB3yCIrnyg2SapgSW8596rtKLgoCe_VOF3fhdTk=.bd30c2b8-85bf-43ba-b30c-072a01069222@github.com>
Message-ID: <0dBsw2ejcqxKWjLlAYg_bl6b_GJpKLBDuDzO6Ly3pSU=.37b24d76-6862-4f60-8fd6-c4302bc40140@github.com>

On Tue, 5 Oct 2021 10:01:49 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> This PRs make Loom workspace at least buildable on x86_32. 
>> 
>> Since jlink/jmod run build JDK, the JDK itself has to start well, without touching Loom code. Current patch passes `make images` and `tier1` on `x86_32`, with predictable test failures on Loom-specific tests. I shall continue with the actual x86_32 support in another PR. Meanwhile, this PR should make x86_32 builds (e.g. in GHA) and the rest of non-Loom-specific tests happy. This would also protect from introducing more 32-bit uncleanliness in shared code.
>> 
>> Additional testing:
>>  - [x] 10x `CONF=linux-x86-server-fastdebug make clean-images images`
>>  - [x] Linux x86_32 `tier1` passes (with Loom-specific test failures)
>
> Aleksey Shipilev 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 seven additional commits since the last revision:
> 
>  - Fix another register clash on x86_32 (rcx is used later as rthread)
>  - Merge branch 'fibers' into basic-x86-32-builds
>  - Merge branch 'fibers' into basic-x86-32-builds
>  - More accurate register saving
>  - More precise post_call_nops
>  - Select the register better
>  - Linux x86_32 builds fine

Cheers.

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

PR: https://git.openjdk.java.net/loom/pull/65

From shade at openjdk.java.net  Mon Oct 11 15:42:26 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Mon, 11 Oct 2021 15:42:26 GMT
Subject: Integrated: Make Loom buildable on x86_32
In-Reply-To: <0-D-rFniyQnPM5gVHXWf4pbg5vnMP8TdAtqkoKbFmSU=.0807e9e7-3439-4133-911e-c8ae83781659@github.com>
References: <0-D-rFniyQnPM5gVHXWf4pbg5vnMP8TdAtqkoKbFmSU=.0807e9e7-3439-4133-911e-c8ae83781659@github.com>
Message-ID: <Es69-v_a-B5uoCAZFKWbm_tKRBS-SpEugVf-1G-rzS8=.166e935a-a9c7-47e8-8d97-956c21e55b41@github.com>

On Fri, 24 Sep 2021 17:04:18 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> This PRs make Loom workspace at least buildable on x86_32. 
> 
> Since jlink/jmod run build JDK, the JDK itself has to start well, without touching Loom code. Current patch passes `make images` and `tier1` on `x86_32`, with predictable test failures on Loom-specific tests. I shall continue with the actual x86_32 support in another PR. Meanwhile, this PR should make x86_32 builds (e.g. in GHA) and the rest of non-Loom-specific tests happy. This would also protect from introducing more 32-bit uncleanliness in shared code.
> 
> Additional testing:
>  - [x] 10x `CONF=linux-x86-server-fastdebug make clean-images images`
>  - [x] Linux x86_32 `tier1` passes (with Loom-specific test failures)

This pull request has now been integrated.

Changeset: e8316e7b
Author:    Aleksey Shipilev <shade at openjdk.org>
Committer: Ron Pressler <rpressler at openjdk.org>
URL:       https://git.openjdk.java.net/loom/commit/e8316e7b6bed287662bb3d5aab471e4ae7a7227e
Stats:     116 lines in 15 files changed: 63 ins; 3 del; 50 mod

Make Loom buildable on x86_32

Reviewed-by: rpressler

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

PR: https://git.openjdk.java.net/loom/pull/65

From shade at openjdk.java.net  Mon Oct 11 15:55:33 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Mon, 11 Oct 2021 15:55:33 GMT
Subject: RFR: More tests in tier1_loom
Message-ID: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>

Porting/development work would be much simpler if we had a comprehensive test group with Loom-specific tests. There is such a group in hotspot, `tier1_loom`. We can revamp it with more tests. I basically went and added tests that are added/substantially-modified by Loom, judging by a [recent webrev](https://builds.shipilev.net/patch-openjdk-loom-fibers/).

Sample run:


$ time CONF=linux-x86_64-server-fastdebug make run-test TEST=tier1_loom
...
==============================
Test summary
==============================
   TEST                                              TOTAL  PASS  FAIL ERROR   
   jtreg:test/hotspot/jtreg:tier1_loom                  63    63     0     0   
   jtreg:test/jdk:tier1_loom                            83    83     0     0   
==============================
TEST SUCCESS

Finished building target 'run-test' in configuration 'linux-x86_64-server-fastdebug'

real	6m57.212s
user	33m52.605s
sys	1m32.212s


Excluding `java/lang/Thread/virtual/stress` would make the run at least twice as fast, but I don't think that would be reasonable to do at this stage in development.

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

Commit messages:
 - More tests in tier1_loom

Changes: https://git.openjdk.java.net/loom/pull/74/files
 Webrev: https://webrevs.openjdk.java.net/?repo=loom&pr=74&range=00
  Stats: 16 lines in 2 files changed: 14 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/loom/pull/74.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/74/head:pull/74

PR: https://git.openjdk.java.net/loom/pull/74

From alanb at openjdk.java.net  Mon Oct 11 16:05:24 2021
From: alanb at openjdk.java.net (Alan Bateman)
Date: Mon, 11 Oct 2021 16:05:24 GMT
Subject: RFR: More tests in tier1_loom
In-Reply-To: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
References: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
Message-ID: <RxPYljxROmYVkqwnFeThBbC7lV9fSJH2bL40GsdqVIY=.33347708-1c91-49b2-bc2c-7a86a88d4ee9@github.com>

On Mon, 11 Oct 2021 15:50:02 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Porting/development work would be much simpler if we had a comprehensive test group with Loom-specific tests. There is such a group in hotspot, `tier1_loom`. We can revamp it with more tests. I basically went and added tests that are added/substantially-modified by Loom, judging by a [recent webrev](https://builds.shipilev.net/patch-openjdk-loom-fibers/).
> 
> Sample run:
> 
> 
> $ time CONF=linux-x86_64-server-fastdebug make run-test TEST=tier1_loom
> ...
> ==============================
> Test summary
> ==============================
>    TEST                                              TOTAL  PASS  FAIL ERROR   
>    jtreg:test/hotspot/jtreg:tier1_loom                  63    63     0     0   
>    jtreg:test/jdk:tier1_loom                            83    83     0     0   
> ==============================
> TEST SUCCESS
> 
> Finished building target 'run-test' in configuration 'linux-x86_64-server-fastdebug'
> 
> real	6m57.212s
> user	33m52.605s
> sys	1m32.212s
> 
> 
> Excluding `java/lang/Thread/virtual/stress` would make the run at least twice as fast, but I don't think that would be reasonable to do at this stage in development.

Ugh, tier1_loom in jdk/TEST.group is a not very maintainable. Let's wait until Leonid gets back as this is going to conflict with the testing we do in the Oracle CI system. Also I think we are close to the point where loom-tierX can go away.

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

PR: https://git.openjdk.java.net/loom/pull/74

From shade at openjdk.java.net  Mon Oct 11 16:27:21 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Mon, 11 Oct 2021 16:27:21 GMT
Subject: RFR: More tests in tier1_loom
In-Reply-To: <RxPYljxROmYVkqwnFeThBbC7lV9fSJH2bL40GsdqVIY=.33347708-1c91-49b2-bc2c-7a86a88d4ee9@github.com>
References: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
 <RxPYljxROmYVkqwnFeThBbC7lV9fSJH2bL40GsdqVIY=.33347708-1c91-49b2-bc2c-7a86a88d4ee9@github.com>
Message-ID: <EHay6fQ0OL-ES5d1nLqbXEq4LFfWB6NAJSuEDDkw8fI=.41a034f8-e9a9-4079-b91e-18f6c75ac449@github.com>

On Mon, 11 Oct 2021 16:01:53 GMT, Alan Bateman <alanb at openjdk.org> wrote:

> Ugh, tier1_loom in jdk/TEST.group is a not very maintainable. Let's wait until Leonid gets back as this is going to conflict with the testing we do in the Oracle CI system. Also I think we are close to the point where loom-tierX can go away.

This looks like a custom test group, are you saying Oracle runs it in CI testing? I would have expected the regular tiered testing captured all the tests, Loom included. 

Either way, as I said in the PR description, it would be useful for development/porting work to have a test group that captures Loom tests, pretty much like other component test groups we have. Maybe it would not be called "tier1_loom", though, but just "hotspot_loom" and "jdk_loom"?

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

PR: https://git.openjdk.java.net/loom/pull/74

From shade at openjdk.java.net  Mon Oct 11 16:34:54 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Mon, 11 Oct 2021 16:34:54 GMT
Subject: RFR: Loom: PPC64, S390, ARM32, Zero stubs [v2]
In-Reply-To: <mJ6aRucBnPALk5awUawdzWfmGYtdfb1sD0yojg4B84I=.35685310-49c0-42fd-98a4-1f2f5b7c5b08@github.com>
References: <mJ6aRucBnPALk5awUawdzWfmGYtdfb1sD0yojg4B84I=.35685310-49c0-42fd-98a4-1f2f5b7c5b08@github.com>
Message-ID: <oZu7-AcJiAaqShgjokIqJhBeEoo8EQhgUgFyk-3gTFA=.3ae698d0-0f03-44f6-b448-c8db0c4ed869@github.com>

> This WIP provides enough stubs to make Loom cross-compilable to PPC64, S390, ARM32 and Zero. This should be enough to get the sense where the shared code actually platform-specific (referencing stuff from `frame` that is platform-specific), what should be implemented for a platform, and also should be enough to get GHA build checks green. Note current patch does not implement Loom on these platforms, but merely provides the absolute basic build capabilities.
> 
> Note that ARM32 builds would not be clean until #65 is integrated with 32-bit cleanliness fixes.
> 
> Additional testing:
>  - [x] Linux x86_64 tier1_loom still passes
>  - [x] Linux PPC64 cross-compilation
>  - [x] Linux S390 cross-compilation
>  - [x] Linux ARM32 cross-compilation
>  - [x] Linux x86_64 Zero (Hotspot) compilation

Aleksey Shipilev 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 four additional commits since the last revision:

 - Merge branch 'fibers' into platform-stubs
 - More whitespace
 - Self-review fixes
 - PPC64, S390, ARM32, Zero stubs

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

Changes:
  - all: https://git.openjdk.java.net/loom/pull/72/files
  - new: https://git.openjdk.java.net/loom/pull/72/files/7195f357..a0906d48

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=loom&pr=72&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=loom&pr=72&range=00-01

  Stats: 672 lines in 28 files changed: 110 ins; 473 del; 89 mod
  Patch: https://git.openjdk.java.net/loom/pull/72.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/72/head:pull/72

PR: https://git.openjdk.java.net/loom/pull/72

From alanb at openjdk.java.net  Mon Oct 11 17:29:12 2021
From: alanb at openjdk.java.net (Alan Bateman)
Date: Mon, 11 Oct 2021 17:29:12 GMT
Subject: RFR: More tests in tier1_loom
In-Reply-To: <EHay6fQ0OL-ES5d1nLqbXEq4LFfWB6NAJSuEDDkw8fI=.41a034f8-e9a9-4079-b91e-18f6c75ac449@github.com>
References: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
 <RxPYljxROmYVkqwnFeThBbC7lV9fSJH2bL40GsdqVIY=.33347708-1c91-49b2-bc2c-7a86a88d4ee9@github.com>
 <EHay6fQ0OL-ES5d1nLqbXEq4LFfWB6NAJSuEDDkw8fI=.41a034f8-e9a9-4079-b91e-18f6c75ac449@github.com>
Message-ID: <GZLykvp5bTVIQJ6YhDDqE5qRsmVIoNzzOjczyU9Cv5M=.9ee8e623-00f3-4c34-920d-4c51c6fa09c7@github.com>

On Mon, 11 Oct 2021 16:23:53 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> This looks like a custom test group, are you saying Oracle runs it in CI testing? I would have expected the regular tiered testing captured all the tests, Loom included.
> 
> Either way, as I said in the PR description, it would be useful for development/porting work to have a test group that captures Loom tests, pretty much like other component test groups we have. Maybe it would not be called "tier1_loom", though, but just "hotspot_loom" and "jdk_loom"?

I think we've ended up with historical configuration that dates from early days of this project. It works with hotspot/jtreg/:tier1_loom but not jdk/jtreg/:tier1_loom, it's something we need to fix. So I don't object to adding something short term to define a group for porters to run but it's probably not something we'd bring into the main line.. If you can keep "tier1" out of the name for now then it gives us a chance to the fix our setup.

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

PR: https://git.openjdk.java.net/loom/pull/74

From shade at openjdk.java.net  Tue Oct 12 07:23:27 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Tue, 12 Oct 2021 07:23:27 GMT
Subject: RFR: Loom test groups for development/porting use [v2]
In-Reply-To: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
References: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
Message-ID: <Ov2xAsTb-d5tuMLnp3qd1DrY00Vgvm9N2vPjSRbhF2I=.28d7313f-b689-4a85-bddc-5e7b5eef65f2@github.com>

> Porting/development work would be much simpler if we had a comprehensive test group with Loom-specific tests. There is `tier1_loom`, but it probably has a separate meaning. We can add some test groups with Loom-specific tests. I basically went and added tests that are added/substantially-modified by Loom, judging by a [recent webrev](https://builds.shipilev.net/patch-openjdk-loom-fibers/).
> 
> Sample run:
> 
> 
> $ time CONF=linux-x86_64-server-fastdebug make test TEST="hotspot_loom jdk_loom"
> ...
> ==============================
> Test summary
> ==============================
>    TEST                                              TOTAL  PASS  FAIL ERROR   
>    jtreg:test/hotspot/jtreg:hotspot_loom                62    62     0     0   
>    jtreg:test/jdk:jdk_loom                              83    83     0     0   
> ==============================
> TEST SUCCESS
> 
> Finished building target 'test' in configuration 'linux-x86_64-server-fastdebug'
> 
> real	9m32.660s
> user	103m5.744s
> sys	5m37.864s

Aleksey Shipilev 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 one additional commit since the last revision:

  Do separate test groups

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

Changes:
  - all: https://git.openjdk.java.net/loom/pull/74/files
  - new: https://git.openjdk.java.net/loom/pull/74/files/25fb4bd7..b3ed47dc

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=loom&pr=74&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=loom&pr=74&range=00-01

  Stats: 147 lines in 17 files changed: 79 ins; 16 del; 52 mod
  Patch: https://git.openjdk.java.net/loom/pull/74.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/74/head:pull/74

PR: https://git.openjdk.java.net/loom/pull/74

From shade at openjdk.java.net  Tue Oct 12 07:23:29 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Tue, 12 Oct 2021 07:23:29 GMT
Subject: RFR: Loom test groups for development/porting use
In-Reply-To: <GZLykvp5bTVIQJ6YhDDqE5qRsmVIoNzzOjczyU9Cv5M=.9ee8e623-00f3-4c34-920d-4c51c6fa09c7@github.com>
References: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
 <RxPYljxROmYVkqwnFeThBbC7lV9fSJH2bL40GsdqVIY=.33347708-1c91-49b2-bc2c-7a86a88d4ee9@github.com>
 <EHay6fQ0OL-ES5d1nLqbXEq4LFfWB6NAJSuEDDkw8fI=.41a034f8-e9a9-4079-b91e-18f6c75ac449@github.com>
 <GZLykvp5bTVIQJ6YhDDqE5qRsmVIoNzzOjczyU9Cv5M=.9ee8e623-00f3-4c34-920d-4c51c6fa09c7@github.com>
Message-ID: <reSKmcHXU1m8Yn7YWoRNkLJzxWUqdkTwOIX_650NnhQ=.8f82a69e-28d7-4376-904a-5036a3d5233e@github.com>

On Mon, 11 Oct 2021 17:25:52 GMT, Alan Bateman <alanb at openjdk.org> wrote:

> If you can keep "tier1" out of the name for now then it gives us a chance to the fix our setup.

Yes, we can do `hotspot_loom` and `jdk_loom` instead. See new commit and new PR description.

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

PR: https://git.openjdk.java.net/loom/pull/74

From duke at openjdk.java.net  Tue Oct 12 07:59:59 2021
From: duke at openjdk.java.net (duke)
Date: Tue, 12 Oct 2021 07:59:59 GMT
Subject: git: openjdk/loom: fibers: enhance jvmtiVTMTDisabler debug info
Message-ID: <62dd34bd-6bba-4a42-a5c8-a5a69059f647@openjdk.java.net>

Changeset: f77e5475
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-10-12 07:58:23 +0000
URL:       https://git.openjdk.java.net/loom/commit/f77e5475751c155caedf52859f71f8ccdb3c9445

enhance jvmtiVTMTDisabler debug info

! src/hotspot/share/prims/jvmtiEnvBase.cpp
! src/hotspot/share/prims/jvmtiEnvBase.hpp
! src/hotspot/share/prims/jvmtiThreadState.cpp
! src/hotspot/share/prims/jvmtiThreadState.hpp
! test/hotspot/jtreg/serviceability/jvmti/vthread/SuspendResume2/libSuspendResume2.cpp


From alanb at openjdk.java.net  Tue Oct 12 08:07:12 2021
From: alanb at openjdk.java.net (Alan Bateman)
Date: Tue, 12 Oct 2021 08:07:12 GMT
Subject: RFR: Loom test groups for development/porting use [v2]
In-Reply-To: <Ov2xAsTb-d5tuMLnp3qd1DrY00Vgvm9N2vPjSRbhF2I=.28d7313f-b689-4a85-bddc-5e7b5eef65f2@github.com>
References: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
 <Ov2xAsTb-d5tuMLnp3qd1DrY00Vgvm9N2vPjSRbhF2I=.28d7313f-b689-4a85-bddc-5e7b5eef65f2@github.com>
Message-ID: <-b-GbNk9g36C-MhW_fZFR4uDVx8yZXgRa67whbhUcbA=.5870c35d-60d1-4944-9760-7a4875748f64@github.com>

On Tue, 12 Oct 2021 07:23:27 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Porting/development work would be much simpler if we had a comprehensive test group with Loom-specific tests. There is `tier1_loom`, but it probably has a separate meaning. We can add some test groups with Loom-specific tests. I basically went and added tests that are added/substantially-modified by Loom, judging by a [recent webrev](https://builds.shipilev.net/patch-openjdk-loom-fibers/).
>> 
>> Sample run:
>> 
>> 
>> $ time CONF=linux-x86_64-server-fastdebug make test TEST="hotspot_loom jdk_loom"
>> ...
>> ==============================
>> Test summary
>> ==============================
>>    TEST                                              TOTAL  PASS  FAIL ERROR   
>>    jtreg:test/hotspot/jtreg:hotspot_loom                62    62     0     0   
>>    jtreg:test/jdk:jdk_loom                              83    83     0     0   
>> ==============================
>> TEST SUCCESS
>> 
>> Finished building target 'test' in configuration 'linux-x86_64-server-fastdebug'
>> 
>> real	9m32.660s
>> user	103m5.744s
>> sys	5m37.864s
>
> Aleksey Shipilev 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 one additional commit since the last revision:
> 
>   Do separate test groups

test/hotspot/jtreg/TEST.groups line 111:

> 109:   :tier1_loom \
> 110:   runtime/jni/IsVirtualThread \
> 111:   serviceability/dcmd/thread

It would be okay to include these in tier1_loom_runtime and tier1_loom_serviceability as you had them.

test/jdk/TEST.groups line 105:

> 103:     java/util/concurrent/Future \
> 104:     jdk/internal/vm/Continuation \
> 105:     jdk/jfr/threading

Probably better to run java/util/concurrent rater than specific directories, it will otherwise get unwieldy once the tests move to the right place. You can probably drop Throwable, it's not interesting to run have its tests in this test group. Not sure about the JFR threading tests, we've been using the jdk_jfr group for that.

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

PR: https://git.openjdk.java.net/loom/pull/74

From shade at openjdk.java.net  Tue Oct 12 08:19:22 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Tue, 12 Oct 2021 08:19:22 GMT
Subject: RFR: Loom test groups for development/porting use [v3]
In-Reply-To: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
References: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
Message-ID: <eC__zOEU8IJWnEE7QSjP1JnnTxHAivtJE1NiQAB-9mo=.2b844c7f-4262-447d-b325-89c7e695447f@github.com>

> Porting/development work would be much simpler if we had a comprehensive test group with Loom-specific tests. There is `tier1_loom`, but it probably has a separate meaning. We can add some test groups with Loom-specific tests. I basically went and added tests that are added/substantially-modified by Loom, judging by a [recent webrev](https://builds.shipilev.net/patch-openjdk-loom-fibers/).
> 
> Sample run:
> 
> 
> $ time CONF=linux-x86_64-server-fastdebug make test TEST="hotspot_loom jdk_loom"
> ...
> ==============================
> Test summary
> ==============================
>    TEST                                              TOTAL  PASS  FAIL ERROR   
>    jtreg:test/hotspot/jtreg:hotspot_loom                63    63     0     0   
>    jtreg:test/jdk:jdk_loom                             187   187     0     0   
> ==============================
> TEST SUCCESS
> 
> Finished building target 'test' in configuration 'linux-x86_64-server-fastdebug'
> 
> real	6m37.938s
> user	54m13.043s
> sys	2m12.437s

Aleksey Shipilev has updated the pull request incrementally with one additional commit since the last revision:

  More reviews

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

Changes:
  - all: https://git.openjdk.java.net/loom/pull/74/files
  - new: https://git.openjdk.java.net/loom/pull/74/files/b3ed47dc..4764f62d

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=loom&pr=74&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=loom&pr=74&range=01-02

  Stats: 10 lines in 2 files changed: 2 ins; 4 del; 4 mod
  Patch: https://git.openjdk.java.net/loom/pull/74.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/74/head:pull/74

PR: https://git.openjdk.java.net/loom/pull/74

From shade at openjdk.java.net  Tue Oct 12 08:19:28 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Tue, 12 Oct 2021 08:19:28 GMT
Subject: RFR: Loom test groups for development/porting use [v2]
In-Reply-To: <-b-GbNk9g36C-MhW_fZFR4uDVx8yZXgRa67whbhUcbA=.5870c35d-60d1-4944-9760-7a4875748f64@github.com>
References: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
 <Ov2xAsTb-d5tuMLnp3qd1DrY00Vgvm9N2vPjSRbhF2I=.28d7313f-b689-4a85-bddc-5e7b5eef65f2@github.com>
 <-b-GbNk9g36C-MhW_fZFR4uDVx8yZXgRa67whbhUcbA=.5870c35d-60d1-4944-9760-7a4875748f64@github.com>
Message-ID: <vUa5JkzXrss1EKTYDQOUzwk7WVus3ioNEzxwAPvPFYA=.a7aba1e5-f7f1-485a-94e8-208b453f4893@github.com>

On Tue, 12 Oct 2021 08:04:23 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> Aleksey Shipilev has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains one commit:
>> 
>>   Do separate test groups
>
> test/hotspot/jtreg/TEST.groups line 111:
> 
>> 109:   :tier1_loom \
>> 110:   runtime/jni/IsVirtualThread \
>> 111:   serviceability/dcmd/thread
> 
> It would be okay to include these in tier1_loom_runtime and tier1_loom_serviceability as you had them.

Fixed, see new commit.

> test/jdk/TEST.groups line 105:
> 
>> 103:     java/util/concurrent/Future \
>> 104:     jdk/internal/vm/Continuation \
>> 105:     jdk/jfr/threading
> 
> Probably better to run java/util/concurrent rater than specific directories, it will otherwise get unwieldy once the tests move to the right place. You can probably drop Throwable, it's not interesting to run have its tests in this test group. Not sure about the JFR threading tests, we've been using the jdk_jfr group for that.

Fixed. I'd like to have JFR "thread" tests in this group to test thread events.

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

PR: https://git.openjdk.java.net/loom/pull/74

From rpressler at openjdk.java.net  Tue Oct 12 09:33:54 2021
From: rpressler at openjdk.java.net (Ron Pressler)
Date: Tue, 12 Oct 2021 09:33:54 GMT
Subject: RFR: Loom: PPC64, S390, ARM32, Zero stubs [v2]
In-Reply-To: <oZu7-AcJiAaqShgjokIqJhBeEoo8EQhgUgFyk-3gTFA=.3ae698d0-0f03-44f6-b448-c8db0c4ed869@github.com>
References: <mJ6aRucBnPALk5awUawdzWfmGYtdfb1sD0yojg4B84I=.35685310-49c0-42fd-98a4-1f2f5b7c5b08@github.com>
 <oZu7-AcJiAaqShgjokIqJhBeEoo8EQhgUgFyk-3gTFA=.3ae698d0-0f03-44f6-b448-c8db0c4ed869@github.com>
Message-ID: <XJpFJwdaldP_3YIRdKF4usBEvEJ_F65sswr6YzKZcRE=.ee1e5d7c-7ba7-47d1-9a80-6bb2335e662b@github.com>

On Mon, 11 Oct 2021 16:34:54 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> This WIP provides enough stubs to make Loom cross-compilable to PPC64, S390, ARM32 and Zero. This should be enough to get the sense where the shared code actually platform-specific (referencing stuff from `frame` that is platform-specific), what should be implemented for a platform, and also should be enough to get GHA build checks green. Note current patch does not implement Loom on these platforms, but merely provides the absolute basic build capabilities.
>> 
>> Note that ARM32 builds would not be clean until #65 is integrated with 32-bit cleanliness fixes.
>> 
>> Additional testing:
>>  - [x] Linux x86_64 tier1_loom still passes
>>  - [x] Linux PPC64 cross-compilation
>>  - [x] Linux S390 cross-compilation
>>  - [x] Linux ARM32 cross-compilation
>>  - [x] Linux x86_64 Zero (Hotspot) compilation
>
> Aleksey Shipilev 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 four additional commits since the last revision:
> 
>  - Merge branch 'fibers' into platform-stubs
>  - More whitespace
>  - Self-review fixes
>  - PPC64, S390, ARM32, Zero stubs

Marked as reviewed by rpressler (Lead).

Good to go. Thank you!

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

PR: https://git.openjdk.java.net/loom/pull/72

From shade at openjdk.java.net  Tue Oct 12 10:08:59 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Tue, 12 Oct 2021 10:08:59 GMT
Subject: RFR: Loom: PPC64, S390, ARM32, Zero stubs [v2]
In-Reply-To: <oZu7-AcJiAaqShgjokIqJhBeEoo8EQhgUgFyk-3gTFA=.3ae698d0-0f03-44f6-b448-c8db0c4ed869@github.com>
References: <mJ6aRucBnPALk5awUawdzWfmGYtdfb1sD0yojg4B84I=.35685310-49c0-42fd-98a4-1f2f5b7c5b08@github.com>
 <oZu7-AcJiAaqShgjokIqJhBeEoo8EQhgUgFyk-3gTFA=.3ae698d0-0f03-44f6-b448-c8db0c4ed869@github.com>
Message-ID: <2_BjnngmJvDVHMeyTSWFyIkMqrWCvS4vpTC78XSrMWE=.6571d062-a7f6-4192-a141-c49c3da6131f@github.com>

On Mon, 11 Oct 2021 16:34:54 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> This WIP provides enough stubs to make Loom cross-compilable to PPC64, S390, ARM32 and Zero. This should be enough to get the sense where the shared code actually platform-specific (referencing stuff from `frame` that is platform-specific), what should be implemented for a platform, and also should be enough to get GHA build checks green. Note current patch does not implement Loom on these platforms, but merely provides the absolute basic build capabilities.
>> 
>> Note that ARM32 builds would not be clean until #65 is integrated with 32-bit cleanliness fixes.
>> 
>> Additional testing:
>>  - [x] Linux x86_64 tier1_loom still passes
>>  - [x] Linux PPC64 cross-compilation
>>  - [x] Linux S390 cross-compilation
>>  - [x] Linux ARM32 cross-compilation
>>  - [x] Linux x86_64 Zero (Hotspot) compilation
>
> Aleksey Shipilev 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 four additional commits since the last revision:
> 
>  - Merge branch 'fibers' into platform-stubs
>  - More whitespace
>  - Self-review fixes
>  - PPC64, S390, ARM32, Zero stubs

Cheers!

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

PR: https://git.openjdk.java.net/loom/pull/72

From shade at openjdk.java.net  Tue Oct 12 12:42:56 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Tue, 12 Oct 2021 12:42:56 GMT
Subject: Integrated: Loom: PPC64, S390, ARM32, Zero stubs
In-Reply-To: <mJ6aRucBnPALk5awUawdzWfmGYtdfb1sD0yojg4B84I=.35685310-49c0-42fd-98a4-1f2f5b7c5b08@github.com>
References: <mJ6aRucBnPALk5awUawdzWfmGYtdfb1sD0yojg4B84I=.35685310-49c0-42fd-98a4-1f2f5b7c5b08@github.com>
Message-ID: <WoLO0QwcFCVoxVNGg9dSeYF5O4T_xEOOhbIJos3nVXI=.966e5dbb-500d-4e1d-8c60-6d13ed7c40fc@github.com>

On Tue, 5 Oct 2021 16:44:01 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> This WIP provides enough stubs to make Loom cross-compilable to PPC64, S390, ARM32 and Zero. This should be enough to get the sense where the shared code actually platform-specific (referencing stuff from `frame` that is platform-specific), what should be implemented for a platform, and also should be enough to get GHA build checks green. Note current patch does not implement Loom on these platforms, but merely provides the absolute basic build capabilities.
> 
> Note that ARM32 builds would not be clean until #65 is integrated with 32-bit cleanliness fixes.
> 
> Additional testing:
>  - [x] Linux x86_64 tier1_loom still passes
>  - [x] Linux PPC64 cross-compilation
>  - [x] Linux S390 cross-compilation
>  - [x] Linux ARM32 cross-compilation
>  - [x] Linux x86_64 Zero (Hotspot) compilation

This pull request has now been integrated.

Changeset: 3a89cd5a
Author:    Aleksey Shipilev <shade at openjdk.org>
Committer: Ron Pressler <rpressler at openjdk.org>
URL:       https://git.openjdk.java.net/loom/commit/3a89cd5a85acca136cc3329a9b11253280435bb4
Stats:     2286 lines in 49 files changed: 2203 ins; 33 del; 50 mod

Loom: PPC64, S390, ARM32, Zero stubs

Reviewed-by: rpressler

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

PR: https://git.openjdk.java.net/loom/pull/72

From alanb at openjdk.java.net  Tue Oct 12 13:18:56 2021
From: alanb at openjdk.java.net (Alan Bateman)
Date: Tue, 12 Oct 2021 13:18:56 GMT
Subject: RFR: Loom test groups for development/porting use [v3]
In-Reply-To: <eC__zOEU8IJWnEE7QSjP1JnnTxHAivtJE1NiQAB-9mo=.2b844c7f-4262-447d-b325-89c7e695447f@github.com>
References: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
 <eC__zOEU8IJWnEE7QSjP1JnnTxHAivtJE1NiQAB-9mo=.2b844c7f-4262-447d-b325-89c7e695447f@github.com>
Message-ID: <6K5oABmk0_BsQ0HMsQtJZ7gYmVb57jlAhdeepga49-o=.e862b47f-d6d2-41b7-b354-0a418688d9ee@github.com>

On Tue, 12 Oct 2021 08:19:22 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Porting/development work would be much simpler if we had a comprehensive test group with Loom-specific tests. There is `tier1_loom`, but it probably has a separate meaning. We can add some test groups with Loom-specific tests. I basically went and added tests that are added/substantially-modified by Loom, judging by a [recent webrev](https://builds.shipilev.net/patch-openjdk-loom-fibers/).
>> 
>> Sample run:
>> 
>> 
>> $ time CONF=linux-x86_64-server-fastdebug make test TEST="hotspot_loom jdk_loom"
>> ...
>> ==============================
>> Test summary
>> ==============================
>>    TEST                                              TOTAL  PASS  FAIL ERROR   
>>    jtreg:test/hotspot/jtreg:hotspot_loom                63    63     0     0   
>>    jtreg:test/jdk:jdk_loom                             187   187     0     0   
>> ==============================
>> TEST SUCCESS
>> 
>> Finished building target 'test' in configuration 'linux-x86_64-server-fastdebug'
>> 
>> real	6m37.938s
>> user	54m13.043s
>> sys	2m12.437s
>
> Aleksey Shipilev has updated the pull request incrementally with one additional commit since the last revision:
> 
>   More reviews

Marked as reviewed by alanb (Committer).

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

PR: https://git.openjdk.java.net/loom/pull/74

From alanb at openjdk.java.net  Tue Oct 12 13:18:57 2021
From: alanb at openjdk.java.net (Alan Bateman)
Date: Tue, 12 Oct 2021 13:18:57 GMT
Subject: RFR: Loom test groups for development/porting use [v2]
In-Reply-To: <vUa5JkzXrss1EKTYDQOUzwk7WVus3ioNEzxwAPvPFYA=.a7aba1e5-f7f1-485a-94e8-208b453f4893@github.com>
References: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
 <Ov2xAsTb-d5tuMLnp3qd1DrY00Vgvm9N2vPjSRbhF2I=.28d7313f-b689-4a85-bddc-5e7b5eef65f2@github.com>
 <-b-GbNk9g36C-MhW_fZFR4uDVx8yZXgRa67whbhUcbA=.5870c35d-60d1-4944-9760-7a4875748f64@github.com>
 <vUa5JkzXrss1EKTYDQOUzwk7WVus3ioNEzxwAPvPFYA=.a7aba1e5-f7f1-485a-94e8-208b453f4893@github.com>
Message-ID: <4HPzDIqaxmbrkwvnUHetgMouymXeTtlhhwELQ1pp9A0=.d9df1000-c590-4bfd-bff2-51631339dc47@github.com>

On Tue, 12 Oct 2021 08:14:31 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> test/jdk/TEST.groups line 105:
>> 
>>> 103:     java/util/concurrent/Future \
>>> 104:     jdk/internal/vm/Continuation \
>>> 105:     jdk/jfr/threading
>> 
>> Probably better to run java/util/concurrent rater than specific directories, it will otherwise get unwieldy once the tests move to the right place. You can probably drop Throwable, it's not interesting to run have its tests in this test group. Not sure about the JFR threading tests, we've been using the jdk_jfr group for that.
>
> Fixed. I'd like to have JFR "thread" tests in this group to test thread events.

There are also tests for the JFR events in jfr/event/runtime but they on the exclude list right now. We need to go back over these tests as they date from an initial set of events emitted from the VM. We've since changed to emit them from the Java code. They are exercised by Thread/virtual/JfrEvents.java, which will move at some point once the tests in that directory move to the right place.

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

PR: https://git.openjdk.java.net/loom/pull/74

From alanb at openjdk.java.net  Tue Oct 12 13:18:57 2021
From: alanb at openjdk.java.net (Alan Bateman)
Date: Tue, 12 Oct 2021 13:18:57 GMT
Subject: RFR: Loom test groups for development/porting use [v2]
In-Reply-To: <4HPzDIqaxmbrkwvnUHetgMouymXeTtlhhwELQ1pp9A0=.d9df1000-c590-4bfd-bff2-51631339dc47@github.com>
References: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
 <Ov2xAsTb-d5tuMLnp3qd1DrY00Vgvm9N2vPjSRbhF2I=.28d7313f-b689-4a85-bddc-5e7b5eef65f2@github.com>
 <-b-GbNk9g36C-MhW_fZFR4uDVx8yZXgRa67whbhUcbA=.5870c35d-60d1-4944-9760-7a4875748f64@github.com>
 <vUa5JkzXrss1EKTYDQOUzwk7WVus3ioNEzxwAPvPFYA=.a7aba1e5-f7f1-485a-94e8-208b453f4893@github.com>
 <4HPzDIqaxmbrkwvnUHetgMouymXeTtlhhwELQ1pp9A0=.d9df1000-c590-4bfd-bff2-51631339dc47@github.com>
Message-ID: <SxYW108ckWuh-7zIHMDRqckQKIIkgoK7jYKtbmgPwjs=.9edbb989-3e09-4e91-b94e-958c0219722a@github.com>

On Tue, 12 Oct 2021 13:14:19 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> Fixed. I'd like to have JFR "thread" tests in this group to test thread events.
>
> There are also tests for the JFR events in jfr/event/runtime but they on the exclude list right now. We need to go back over these tests as they date from an initial set of events emitted from the VM. We've since changed to emit them from the Java code. They are exercised by Thread/virtual/JfrEvents.java, which will move at some point once the tests in that directory move to the right place.

When Leonid is back then we can see about sorting out our configuration and then we can see if jdk_loom can be renamed to have it be a temporary loom tier1 group.

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

PR: https://git.openjdk.java.net/loom/pull/74

From shade at openjdk.java.net  Tue Oct 12 13:18:57 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Tue, 12 Oct 2021 13:18:57 GMT
Subject: RFR: Loom test groups for development/porting use [v2]
In-Reply-To: <SxYW108ckWuh-7zIHMDRqckQKIIkgoK7jYKtbmgPwjs=.9edbb989-3e09-4e91-b94e-958c0219722a@github.com>
References: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
 <Ov2xAsTb-d5tuMLnp3qd1DrY00Vgvm9N2vPjSRbhF2I=.28d7313f-b689-4a85-bddc-5e7b5eef65f2@github.com>
 <-b-GbNk9g36C-MhW_fZFR4uDVx8yZXgRa67whbhUcbA=.5870c35d-60d1-4944-9760-7a4875748f64@github.com>
 <vUa5JkzXrss1EKTYDQOUzwk7WVus3ioNEzxwAPvPFYA=.a7aba1e5-f7f1-485a-94e8-208b453f4893@github.com>
 <4HPzDIqaxmbrkwvnUHetgMouymXeTtlhhwELQ1pp9A0=.d9df1000-c590-4bfd-bff2-51631339dc47@github.com>
 <SxYW108ckWuh-7zIHMDRqckQKIIkgoK7jYKtbmgPwjs=.9edbb989-3e09-4e91-b94e-958c0219722a@github.com>
Message-ID: <C2xFvIlnJWHD1a6HTK1rifzwc9M_vmtzQ6DiWmBFHWI=.a49e3372-d875-40f5-9a56-d9dc7355a5ff@github.com>

On Tue, 12 Oct 2021 13:15:19 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> There are also tests for the JFR events in jfr/event/runtime but they on the exclude list right now. We need to go back over these tests as they date from an initial set of events emitted from the VM. We've since changed to emit them from the Java code. They are exercised by Thread/virtual/JfrEvents.java, which will move at some point once the tests in that directory move to the right place.
>
> When Leonid is back then we can see about sorting out our configuration and then we can see if jdk_loom can be renamed to have it be a temporary loom tier1 group.

All right, sounds good.

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

PR: https://git.openjdk.java.net/loom/pull/74

From shade at openjdk.java.net  Tue Oct 12 15:23:03 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Tue, 12 Oct 2021 15:23:03 GMT
Subject: Integrated: Loom test groups for development/porting use
In-Reply-To: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
References: <tVZHpivATV3HWOWpzQucvQ9Gc4eaNvctrRrnHWZezuo=.a7c26f95-9d69-4bf7-b47d-ea588f7f6939@github.com>
Message-ID: <R4voWw2lWoylYQSto_CtfSTx2iecnom7HqQDeuZDRnY=.329edde3-c5f1-43b0-baa2-b8c60ce713b3@github.com>

On Mon, 11 Oct 2021 15:50:02 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Porting/development work would be much simpler if we had a comprehensive test group with Loom-specific tests. There is `tier1_loom`, but it probably has a separate meaning. We can add some test groups with Loom-specific tests. I basically went and added tests that are added/substantially-modified by Loom, judging by a [recent webrev](https://builds.shipilev.net/patch-openjdk-loom-fibers/).
> 
> Sample run:
> 
> 
> $ time CONF=linux-x86_64-server-fastdebug make test TEST="hotspot_loom jdk_loom"
> ...
> ==============================
> Test summary
> ==============================
>    TEST                                              TOTAL  PASS  FAIL ERROR   
>    jtreg:test/hotspot/jtreg:hotspot_loom                63    63     0     0   
>    jtreg:test/jdk:jdk_loom                             187   187     0     0   
> ==============================
> TEST SUCCESS
> 
> Finished building target 'test' in configuration 'linux-x86_64-server-fastdebug'
> 
> real	6m37.938s
> user	54m13.043s
> sys	2m12.437s

This pull request has now been integrated.

Changeset: e470f967
Author:    Aleksey Shipilev <shade at openjdk.org>
Committer: Alan Bateman <alanb at openjdk.org>
URL:       https://git.openjdk.java.net/loom/commit/e470f96787332f6cc353a57a39e17841c68714fd
Stats:     17 lines in 2 files changed: 15 ins; 0 del; 2 mod

Loom test groups for development/porting use

Reviewed-by: alanb

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

PR: https://git.openjdk.java.net/loom/pull/74

From duke at openjdk.java.net  Wed Oct 13 17:24:23 2021
From: duke at openjdk.java.net (duke)
Date: Wed, 13 Oct 2021 17:24:23 GMT
Subject: git: openjdk/loom: fibers: 3 new changesets
Message-ID: <114a77ad-2895-4669-b605-9aa7e14daae3@openjdk.java.net>

Changeset: 7e20fe30
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-11 16:55:04 +0000
URL:       https://git.openjdk.java.net/loom/commit/7e20fe30c25f18efeaea56e39e061937c73d5589

Improve javadoc

! src/java.base/share/classes/java/net/DatagramSocket.java

Changeset: 962f629b
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-12 19:14:04 +0000
URL:       https://git.openjdk.java.net/loom/commit/962f629b0da263fc52135145fd3cab0780295643

Don't signal worker when queue in empty for limited cases

! src/java.base/share/classes/java/lang/System.java
! src/java.base/share/classes/java/lang/VirtualThread.java
! src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java
! src/java.base/share/classes/jdk/internal/access/JavaLangAccess.java
! src/java.base/share/classes/jdk/internal/misc/VirtualThreads.java
! src/java.base/share/classes/sun/nio/ch/Poller.java

Changeset: 51419e70
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-13 10:22:02 +0000
URL:       https://git.openjdk.java.net/loom/commit/51419e70f322a00de65cceb66be8447958e7d938

Remove commeneted excludes and other sync up of exclude lists

! test/hotspot/jtreg/ProblemList.txt
! test/jdk/ProblemList-vthread.txt


From duke at openjdk.java.net  Thu Oct 14 04:38:26 2021
From: duke at openjdk.java.net (duke)
Date: Thu, 14 Oct 2021 04:38:26 GMT
Subject: git: openjdk/loom: fibers: fixed rooot cause of SuspendResume2 and
 SuspendResumeAll test failures
Message-ID: <66a49d5a-bb08-4435-8c22-26d51320e836@openjdk.java.net>

Changeset: 310bfc46
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-10-14 04:37:11 +0000
URL:       https://git.openjdk.java.net/loom/commit/310bfc46bc52770760efeb02d773074819e6cd74

fixed rooot cause of SuspendResume2 and SuspendResumeAll test failures

! src/hotspot/share/prims/jvm.cpp
! src/hotspot/share/prims/jvmtiEnvBase.cpp
! test/hotspot/jtreg/ProblemList-vthread.txt


From shade at openjdk.java.net  Thu Oct 14 13:43:23 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Thu, 14 Oct 2021 13:43:23 GMT
Subject: RFR: Fix non-supported platforms release builds
Message-ID: <4ALToKK5nTNr6xX3Z4TqAL_N5y81Iv8ppuVywnQFZH0=.8f7217be-605a-4a63-8555-8880356cdc4f@github.com>

It seems when doing #72, I missed a spot that makes release builds fail for non-supported platforms. I am not sure why fastdebug passes, but oh well. The fix is to platform-ifdef the offending block, like we do in other places.

Additional testing:
 - [x] Linux x86_64 Zero release builds now
 - [ ] Linux x86_64 Server fastdebug/release pass `jdk_loom hotspot_loom`

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

Commit messages:
 - Fix non-supported platforms release builds

Changes: https://git.openjdk.java.net/loom/pull/75/files
 Webrev: https://webrevs.openjdk.java.net/?repo=loom&pr=75&range=00
  Stats: 5 lines in 1 file changed: 5 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/loom/pull/75.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/75/head:pull/75

PR: https://git.openjdk.java.net/loom/pull/75

From shade at openjdk.java.net  Thu Oct 14 14:15:09 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Thu, 14 Oct 2021 14:15:09 GMT
Subject: RFR: Remove -XX:ContPerfTest
Message-ID: <g0H1FzT1ShiHFBd7Fmy46uH4pK3Rctdoig9JEN334B0=.131b2d6c-f39f-4bb7-a41c-0d7c856518d9@github.com>

When porting to x86_32, I noticed there is a diagnostic `ContPerfTest` option which effectively takes different paths, depending on diagnostic setting. Is it still useful? For a cleanup/preparation-for-upstreaming, I propose we roll it back.

Additional testing:
 - [x] Linux x86_64 fastdebug `jdk_loom hotspot_loom`

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

Commit messages:
 - Fix

Changes: https://git.openjdk.java.net/loom/pull/76/files
 Webrev: https://webrevs.openjdk.java.net/?repo=loom&pr=76&range=00
  Stats: 22 lines in 2 files changed: 0 ins; 11 del; 11 mod
  Patch: https://git.openjdk.java.net/loom/pull/76.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/76/head:pull/76

PR: https://git.openjdk.java.net/loom/pull/76

From rpressler at openjdk.java.net  Thu Oct 14 14:25:55 2021
From: rpressler at openjdk.java.net (Ron Pressler)
Date: Thu, 14 Oct 2021 14:25:55 GMT
Subject: RFR: Fix non-supported platforms release builds
In-Reply-To: <4ALToKK5nTNr6xX3Z4TqAL_N5y81Iv8ppuVywnQFZH0=.8f7217be-605a-4a63-8555-8880356cdc4f@github.com>
References: <4ALToKK5nTNr6xX3Z4TqAL_N5y81Iv8ppuVywnQFZH0=.8f7217be-605a-4a63-8555-8880356cdc4f@github.com>
Message-ID: <JUHNmaGm0e2s9O4ZkOIrssyV0-UDgFaGD2zWFnnAfs8=.dc58d00e-a413-4fdf-8101-90189d511091@github.com>

On Thu, 14 Oct 2021 13:36:45 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> It seems when doing #72, I missed a spot that makes release builds fail for non-supported platforms. I am not sure why fastdebug passes, but oh well. The fix is to platform-ifdef the offending block, like we do in other places.
> 
> Additional testing:
>  - [x] Linux x86_64 Zero release builds now
>  - [x] Linux x86_64 Server fastdebug/release pass `jdk_loom hotspot_loom`

Marked as reviewed by rpressler (Lead).

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

PR: https://git.openjdk.java.net/loom/pull/75

From shade at openjdk.java.net  Thu Oct 14 14:25:55 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Thu, 14 Oct 2021 14:25:55 GMT
Subject: RFR: Fix non-supported platforms release builds
In-Reply-To: <4ALToKK5nTNr6xX3Z4TqAL_N5y81Iv8ppuVywnQFZH0=.8f7217be-605a-4a63-8555-8880356cdc4f@github.com>
References: <4ALToKK5nTNr6xX3Z4TqAL_N5y81Iv8ppuVywnQFZH0=.8f7217be-605a-4a63-8555-8880356cdc4f@github.com>
Message-ID: <xRekR_QK40XEepsRSe0oUgkDjDQnGu2nAqVFWwcR3Vc=.80cecc3e-9b2d-4cd7-b6da-ad0e0f544624@github.com>

On Thu, 14 Oct 2021 13:36:45 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> It seems when doing #72, I missed a spot that makes release builds fail for non-supported platforms. I am not sure why fastdebug passes, but oh well. The fix is to platform-ifdef the offending block, like we do in other places.
> 
> Additional testing:
>  - [x] Linux x86_64 Zero release builds now
>  - [x] Linux x86_64 Server fastdebug/release pass `jdk_loom hotspot_loom`

Thanks!

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

PR: https://git.openjdk.java.net/loom/pull/75

From shade at openjdk.java.net  Thu Oct 14 14:35:19 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Thu, 14 Oct 2021 14:35:19 GMT
Subject: RFR: Drop x86_32 code from x86_64-specific files
Message-ID: <IWceRB56-EmHKusTMEi0SZc4PZkOzmZaKVX1JVz9mY4=.a11ee310-ad96-4c14-9898-803db32868c6@github.com>

There are instances of x86_32 code in x86_64-specific files. That code would not be ever used and thus would bit rot, as it would never be compiled on x86_32. The porting to x86_32 would make the x86_32-specific versions of the StubGenerator. This simplifies x86_64 StubGenerator a bit.

Additional testing:
 - [x] Linux x86_64 fastdebug `jdk_loom hotspot_loom`

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

Commit messages:
 - Reinstate r15_thread reinitialization
 - Drop x86_32 code from x86_64-specific files

Changes: https://git.openjdk.java.net/loom/pull/77/files
 Webrev: https://webrevs.openjdk.java.net/?repo=loom&pr=77&range=00
  Stats: 32 lines in 1 file changed: 0 ins; 16 del; 16 mod
  Patch: https://git.openjdk.java.net/loom/pull/77.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/77/head:pull/77

PR: https://git.openjdk.java.net/loom/pull/77

From shade at openjdk.java.net  Thu Oct 14 15:05:57 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Thu, 14 Oct 2021 15:05:57 GMT
Subject: Integrated: Fix non-supported platforms release builds
In-Reply-To: <4ALToKK5nTNr6xX3Z4TqAL_N5y81Iv8ppuVywnQFZH0=.8f7217be-605a-4a63-8555-8880356cdc4f@github.com>
References: <4ALToKK5nTNr6xX3Z4TqAL_N5y81Iv8ppuVywnQFZH0=.8f7217be-605a-4a63-8555-8880356cdc4f@github.com>
Message-ID: <ilGS3gGDwtECAhvyCwNdW6Xp-kp0qS9KwAUXCGrBpt0=.ec7a3ced-f1ec-43ba-84dd-408880db4250@github.com>

On Thu, 14 Oct 2021 13:36:45 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> It seems when doing #72, I missed a spot that makes release builds fail for non-supported platforms. I am not sure why fastdebug passes, but oh well. The fix is to platform-ifdef the offending block, like we do in other places.
> 
> Additional testing:
>  - [x] Linux x86_64 Zero release builds now
>  - [x] Linux x86_64 Server fastdebug/release pass `jdk_loom hotspot_loom`

This pull request has now been integrated.

Changeset: 5b1a3a61
Author:    Aleksey Shipilev <shade at openjdk.org>
Committer: Ron Pressler <rpressler at openjdk.org>
URL:       https://git.openjdk.java.net/loom/commit/5b1a3a61071ea4e651acb7d113f37a6c3ff45094
Stats:     5 lines in 1 file changed: 5 ins; 0 del; 0 mod

Fix non-supported platforms release builds

Reviewed-by: rpressler

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

PR: https://git.openjdk.java.net/loom/pull/75

From rpressler at openjdk.java.net  Thu Oct 14 15:15:54 2021
From: rpressler at openjdk.java.net (Ron Pressler)
Date: Thu, 14 Oct 2021 15:15:54 GMT
Subject: RFR: Remove -XX:ContPerfTest
In-Reply-To: <g0H1FzT1ShiHFBd7Fmy46uH4pK3Rctdoig9JEN334B0=.131b2d6c-f39f-4bb7-a41c-0d7c856518d9@github.com>
References: <g0H1FzT1ShiHFBd7Fmy46uH4pK3Rctdoig9JEN334B0=.131b2d6c-f39f-4bb7-a41c-0d7c856518d9@github.com>
Message-ID: <26_6wxZ9oZvO1c_AfOxPpshq-gid2PxXjlhAKaWhCvM=.b9868683-f149-4161-bc22-62dfa009f183@github.com>

On Thu, 14 Oct 2021 14:09:46 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> When porting to x86_32, I noticed there is a diagnostic `ContPerfTest` option which effectively takes different paths, depending on diagnostic setting. Is it still useful? For a cleanup/preparation-for-upstreaming, I propose we roll it back.
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug `jdk_loom hotspot_loom`

I intend to remove it at a later date, of course prior to upstreaming.

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

PR: https://git.openjdk.java.net/loom/pull/76

From duke at openjdk.java.net  Thu Oct 14 15:27:10 2021
From: duke at openjdk.java.net (duke)
Date: Thu, 14 Oct 2021 15:27:10 GMT
Subject: git: openjdk/loom: fibers: minor tweak in VThreadMonitorTest to avoid
 a JNI IsSameObject assert
Message-ID: <acdf407a-c388-4a73-85c6-ce8072e235f4@openjdk.java.net>

Changeset: d54d1604
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-10-14 15:25:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/d54d16048c67ff0e467462f2fd989c1ea84c13c4

minor tweak in VThreadMonitorTest to avoid a JNI IsSameObject assert

! test/hotspot/jtreg/serviceability/jvmti/vthread/VThreadMonitorTest/libVThreadMonitorTest.cpp


From shade at openjdk.java.net  Thu Oct 14 15:29:08 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Thu, 14 Oct 2021 15:29:08 GMT
Subject: RFR: Harmonize actual and expected signature of Continuation.doYield
Message-ID: <pCb8LB_EgDl0iiBtL1OHlZFUz9aL9GksIMjhelOjy4w=.fabced03-cd83-424f-9f3e-5f45b48f9747@github.com>

Found this inconsistency when reading the Loom code during x86_32 porting. `Continuation.doYield` has an `int` argument, yet C2's `OptoRuntime::continuation_doYield_Type` does not declare it. I think this is basically asking for trouble in C2, as the optimizations may ask the function type, discover there is an input of type `int`, but no such input is actually present. Runtime stubs seem to be also oblivious there is an argument, and calling conventions probably put it in the register on x86_64 and AArch64. On other arches, that might not be true.

I don't believe it breaks anything now, but let's fix it, while we are at it. It looks to me that `Continuation.doYield` is ever called with `0`, so we might just drop its `int` argument? Not sure if `scopes` is something Java code plans to use.

Additional testing:
 - [x] Linux x86_64 fastdebug, `jdk_loom hotspot_loom`

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

Commit messages:
 - Fix

Changes: https://git.openjdk.java.net/loom/pull/78/files
 Webrev: https://webrevs.openjdk.java.net/?repo=loom&pr=78&range=00
  Stats: 12 lines in 5 files changed: 2 ins; 4 del; 6 mod
  Patch: https://git.openjdk.java.net/loom/pull/78.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/78/head:pull/78

PR: https://git.openjdk.java.net/loom/pull/78

From rpressler at openjdk.java.net  Thu Oct 14 16:12:57 2021
From: rpressler at openjdk.java.net (Ron Pressler)
Date: Thu, 14 Oct 2021 16:12:57 GMT
Subject: RFR: Harmonize actual and expected signature of
 Continuation.doYield
In-Reply-To: <pCb8LB_EgDl0iiBtL1OHlZFUz9aL9GksIMjhelOjy4w=.fabced03-cd83-424f-9f3e-5f45b48f9747@github.com>
References: <pCb8LB_EgDl0iiBtL1OHlZFUz9aL9GksIMjhelOjy4w=.fabced03-cd83-424f-9f3e-5f45b48f9747@github.com>
Message-ID: <Tmgw5IgSN2D8NWARG3K2g06G7BB0gXyH9tkL7ojM2Qw=.856394c2-fba1-4a44-b079-7c837e303ee1@github.com>

On Thu, 14 Oct 2021 15:23:17 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Found this inconsistency when reading the Loom code during x86_32 porting. `Continuation.doYield` has an `int` argument, yet C2's `OptoRuntime::continuation_doYield_Type` does not declare it. I think this is basically asking for trouble in C2, as the optimizations may ask the function type, discover there is an input of type `int`, but no such input is actually present. Runtime stubs seem to be also oblivious there is an argument, and calling conventions probably put it in the register on x86_64 and AArch64. On other arches, that might not be true.
> 
> I don't believe it breaks anything now, but let's fix it, while we are at it. It looks to me that `Continuation.doYield` is ever called with `0`, so we might just drop its `int` argument? Not sure if `scopes` is something Java code plans to use.
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug, `jdk_loom hotspot_loom`

Marked as reviewed by rpressler (Lead).

Yeah, a vestige of older prototypes. Might as well clean this up now.

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

PR: https://git.openjdk.java.net/loom/pull/78

From shade at openjdk.java.net  Fri Oct 15 06:24:59 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Fri, 15 Oct 2021 06:24:59 GMT
Subject: RFR: Harmonize actual and expected signature of
 Continuation.doYield
In-Reply-To: <pCb8LB_EgDl0iiBtL1OHlZFUz9aL9GksIMjhelOjy4w=.fabced03-cd83-424f-9f3e-5f45b48f9747@github.com>
References: <pCb8LB_EgDl0iiBtL1OHlZFUz9aL9GksIMjhelOjy4w=.fabced03-cd83-424f-9f3e-5f45b48f9747@github.com>
Message-ID: <PaIP89VD6Pmp0WP0EihGgaUs3jmraNEp2a7UADKJrOc=.b2d27f21-d107-4336-9016-26d99ad3f5ae@github.com>

On Thu, 14 Oct 2021 15:23:17 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Found this inconsistency when reading the Loom code during x86_32 porting. `Continuation.doYield` has an `int` argument, yet C2's `OptoRuntime::continuation_doYield_Type` does not declare it. I think this is basically asking for trouble in C2, as the optimizations may ask the function type, discover there is an input of type `int`, but no such input is actually present. Runtime stubs seem to be also oblivious there is an argument, and calling conventions probably put it in the register on x86_64 and AArch64. On other arches, that might not be true.
> 
> I don't believe it breaks anything now, but let's fix it, while we are at it. It looks to me that `Continuation.doYield` is ever called with `0`, so we might just drop its `int` argument? Not sure if `scopes` is something Java code plans to use.
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug, `jdk_loom hotspot_loom`

Cheers.

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

PR: https://git.openjdk.java.net/loom/pull/78

From shade at openjdk.java.net  Fri Oct 15 11:25:11 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Fri, 15 Oct 2021 11:25:11 GMT
Subject: RFR: Remove -XX:ContPerfTest
In-Reply-To: <26_6wxZ9oZvO1c_AfOxPpshq-gid2PxXjlhAKaWhCvM=.b9868683-f149-4161-bc22-62dfa009f183@github.com>
References: <g0H1FzT1ShiHFBd7Fmy46uH4pK3Rctdoig9JEN334B0=.131b2d6c-f39f-4bb7-a41c-0d7c856518d9@github.com>
 <26_6wxZ9oZvO1c_AfOxPpshq-gid2PxXjlhAKaWhCvM=.b9868683-f149-4161-bc22-62dfa009f183@github.com>
Message-ID: <Zyd-NUEq7dSQHZEEt-Fwjn1jIskzYrTW2H33tSCPqMQ=.2c6a0530-3853-4f8f-9476-67d586524b5c@github.com>

On Thu, 14 Oct 2021 15:13:12 GMT, Ron Pressler <rpressler at openjdk.org> wrote:

> I intend to remove it at a later date, of course prior to upstreaming.

All right, you want me to close this PR, or leave it hanging until we decide to integrate it?

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

PR: https://git.openjdk.java.net/loom/pull/76

From duke at openjdk.java.net  Fri Oct 15 14:21:55 2021
From: duke at openjdk.java.net (duke)
Date: Fri, 15 Oct 2021 14:21:55 GMT
Subject: git: openjdk/loom: fibers: 169 new changesets
Message-ID: <48afe312-c478-4e7f-bc79-92c7629b5540@openjdk.java.net>

Changeset: 980c50dc
Author:    Roland Westrelin <roland at openjdk.org>
Date:      2021-09-29 14:51:33 +0000
URL:       https://git.openjdk.java.net/loom/commit/980c50dc607e60e12879bd6fb7ff4034469e88d8

8272562: C2: assert(false) failed: Bad graph detected in build_loop_late

Reviewed-by: chagedorn, kvn

! src/hotspot/share/opto/loopopts.cpp
+ test/hotspot/jtreg/compiler/loopopts/TestSunkCastOnUnreachablePath.java

Changeset: edd9d1c9
Author:    Weijun Wang <weijun at openjdk.org>
Date:      2021-09-29 15:37:16 +0000
URL:       https://git.openjdk.java.net/loom/commit/edd9d1c97b7fb50e76abc05d298c9d55db39cc1b

8274330: Incorrect encoding of the DistributionPointName object in IssuingDistributionPointExtension

Reviewed-by: ascarpino

! src/java.base/share/classes/sun/security/x509/IssuingDistributionPointExtension.java
+ test/jdk/sun/security/x509/Extensions/IssuingDistributionPointExtensionEncoding.java

Changeset: b1b66965
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-09-29 16:57:40 +0000
URL:       https://git.openjdk.java.net/loom/commit/b1b66965f1ec6eae547cc4f70f8271bd39ded6da

8274453: (sctp) com/sun/nio/sctp/SctpChannel/CloseDescriptors.java test should be resilient to lsof warnings

Reviewed-by: dfuchs

! test/jdk/com/sun/nio/sctp/SctpChannel/CloseDescriptors.java

Changeset: 97b28742
Author:    Pavel Rappo <prappo at openjdk.org>
Date:      2021-09-29 17:09:08 +0000
URL:       https://git.openjdk.java.net/loom/commit/97b28742b4d3083cadbe4dc10b625ec9fb944353

8274509: Remove stray * and stylistic . from doc comments

Reviewed-by: alanb, dfuchs, lancea, iris, bpb

! src/java.base/share/classes/java/nio/file/Files.java
! src/java.base/share/classes/java/nio/file/Path.java

Changeset: 79cebe2c
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Valerie Peng <valeriep at openjdk.org>
Date:      2021-09-29 18:22:40 +0000
URL:       https://git.openjdk.java.net/loom/commit/79cebe2c1b1e7f43377633b62c970528cac0a786

8274050: Unnecessary Vector usage in javax.crypto

Reviewed-by: valeriep

! src/java.base/share/classes/javax/crypto/CryptoPermissions.java
! src/java.base/share/classes/javax/crypto/CryptoPolicyParser.java

Changeset: 97385d4f
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2021-09-29 23:02:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/97385d4f166fbd63a7c91d2ee28b5ed75cb02518

8274405: Suppress warnings on non-serializable non-transient instance fields in javac and javadoc

Reviewed-by: prappo, jjg

! src/jdk.compiler/share/classes/com/sun/source/util/DocTreePath.java
! src/jdk.compiler/share/classes/com/sun/source/util/TreePath.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/tree/TreeInfo.java
! src/jdk.compiler/share/classes/com/sun/tools/sjavac/pubapi/PubApi.java
! src/jdk.compiler/share/classes/com/sun/tools/sjavac/pubapi/PubApiTypeParam.java
! src/jdk.compiler/share/classes/com/sun/tools/sjavac/pubapi/PubMethod.java
! src/jdk.compiler/share/classes/com/sun/tools/sjavac/pubapi/PubType.java
! src/jdk.compiler/share/classes/com/sun/tools/sjavac/pubapi/PubVar.java
! src/jdk.compiler/share/classes/com/sun/tools/sjavac/server/CompilationSubResult.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/util/DocFileIOException.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/util/ResourceIOException.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/tool/OptionException.java

Changeset: 355356c4
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Naoto Sato <naoto at openjdk.org>
Date:      2021-09-29 23:08:23 +0000
URL:       https://git.openjdk.java.net/loom/commit/355356c405adb9287b786b0b045c2eb974d2ffca

8273435: Remove redundant zero-length check in ClassDesc.of

Reviewed-by: rriggs

! src/java.base/share/classes/java/lang/constant/ClassDesc.java

Changeset: f8415a9b
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-09-30 06:54:13 +0000
URL:       https://git.openjdk.java.net/loom/commit/f8415a9b2f610ed431e6948c8174f6d982e5b31f

8274523: java/lang/management/MemoryMXBean/MemoryTest.java test should handle Shenandoah

Reviewed-by: mchung, cjplummer

! test/jdk/java/lang/management/MemoryMXBean/MemoryTest.java

Changeset: c0533ef2
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-09-30 06:55:24 +0000
URL:       https://git.openjdk.java.net/loom/commit/c0533ef2d8e526aaec0eebe862f4bbefc159ea37

8274522: java/lang/management/ManagementFactory/MXBeanException.java test fails with Shenandoah

Reviewed-by: alanb, mchung

! test/jdk/java/lang/management/ManagementFactory/MXBeanException.java

Changeset: dfc557cb
Author:    Christian Hagedorn <chagedorn at openjdk.org>
Date:      2021-09-30 08:29:43 +0000
URL:       https://git.openjdk.java.net/loom/commit/dfc557cbea342b2991f9d129235470ac789b50a2

8274406: RunThese30M.java failed "assert(!LCA_orig->dominates(pred_block) || early->dominates(pred_block)) failed: early is high enough"

Reviewed-by: kvn, thartmann

! src/hotspot/share/opto/loopopts.cpp
! test/hotspot/jtreg/compiler/loopopts/TestSinkingDivisorLostPin.java

Changeset: a8210c53
Author:    Martin Doerr <mdoerr at openjdk.org>
Date:      2021-09-30 08:41:03 +0000
URL:       https://git.openjdk.java.net/loom/commit/a8210c53e7af1cb558251fcb420de1b8a5461b25

8274401: C2: GraphKit::load_array_element bypasses Access API

Reviewed-by: kvn, goetz, thartmann

! src/hotspot/share/opto/graphKit.cpp
! src/hotspot/share/opto/graphKit.hpp
! src/hotspot/share/opto/library_call.cpp
! src/hotspot/share/opto/stringopts.cpp

Changeset: 94e31e5c
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2021-09-30 08:53:31 +0000
URL:       https://git.openjdk.java.net/loom/commit/94e31e5ca51d1c4c253cf7ac5acd950d10c22267

8274506: TestPids.java and TestPidsLimit.java fail with podman run as root

Reviewed-by: mbaesken, cjplummer

! test/hotspot/jtreg/containers/docker/TestPids.java
! test/jdk/jdk/internal/platform/docker/TestPidsLimit.java

Changeset: 2f955d6f
Author:    Mahendra Chhipa <mahendra.chhipa at oracle.com>
Committer: Michael McMahon <michaelm at openjdk.org>
Date:      2021-09-30 11:29:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/2f955d6f5ba15fc2c06eaf683d1ffa3ade97521b

8273142: Remove dependancy of TestHttpServer, HttpTransaction, HttpCallback from open/test/jdk/sun/net/www/protocol/http/ tests

Reviewed-by: michaelm

! test/jdk/sun/net/www/protocol/http/B6296310.java
! test/jdk/sun/net/www/protocol/http/RelativeRedirect.java
! test/jdk/sun/net/www/protocol/http/ResponseCacheStream.java
! test/jdk/sun/net/www/protocol/http/SetChunkedStreamingMode.java

Changeset: bb95dda0
Author:    Masanori Yano <myano at openjdk.org>
Committer: Hannes Walln?fer <hannesw at openjdk.org>
Date:      2021-09-30 11:33:21 +0000
URL:       https://git.openjdk.java.net/loom/commit/bb95dda0ac5032e4df582f2903dcbbbbaef9e8c4

8248001: javadoc generates invalid HTML pages whose ftp:// links are broken

Reviewed-by: hannesw

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/HtmlDocletWriter.java
! test/langtools/jdk/javadoc/doclet/testHrefInDocComment/TestHrefInDocComment.java
+ test/langtools/jdk/javadoc/doclet/testHrefInDocComment/pkg/J1.java

Changeset: bfd61634
Author:    Lin Zang <lzang at openjdk.org>
Date:      2021-09-30 14:44:59 +0000
URL:       https://git.openjdk.java.net/loom/commit/bfd616347126a802c641326a6be5a14c4cd7af90

8274196: Crashes in VM_HeapDumper::work after JDK-8252842
8274245: sun/tools/jmap/BasicJMapTest.java Mutex rank failures

Reviewed-by: coleenp, pliden, cjplummer

! src/hotspot/share/services/heapDumper.cpp
! test/hotspot/jtreg/ProblemList-zgc.txt
! test/jdk/ProblemList.txt

Changeset: 3e0d7c33
Author:    Alex Kasko <akasko at openjdk.org>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2021-09-30 15:21:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/3e0d7c33d41a93496bfa6a47d1508e415930adf9

8270290: NTLM authentication fails if HEAD request is used

Reviewed-by: dfuchs, michaelm

! src/java.base/share/classes/sun/net/www/protocol/http/HttpURLConnection.java
+ test/jdk/sun/net/www/protocol/http/NTLMHeadTest.java

Changeset: 9180d9a2
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2021-09-30 15:23:44 +0000
URL:       https://git.openjdk.java.net/loom/commit/9180d9a2f990e71ca6ac9c14e55a21f7372929ac

8273216: JCMD does not work across container boundaries with Podman

Reviewed-by: mseledtsov, hseigel

! test/hotspot/jtreg/containers/docker/TestJcmd.java

Changeset: c57ed22e
Author:    Bradford Wetmore <wetmore at openjdk.org>
Date:      2021-09-30 15:46:29 +0000
URL:       https://git.openjdk.java.net/loom/commit/c57ed22e779e7efc8ff7f3c7ec08ce2cb1a738cb

8274528: Add comment to explain an HKDF optimization in SSLSecretDerivation

Reviewed-by: jnimeh

! src/java.base/share/classes/sun/security/ssl/SSLSecretDerivation.java

Changeset: f08180f3
Author:    Erik ?sterlund <eosterlund at openjdk.org>
Date:      2021-09-30 15:52:36 +0000
URL:       https://git.openjdk.java.net/loom/commit/f08180f35f18263e33d96b6d1f06e5129328f01a

8274501: c2i entry barriers read int as long on AArch64

Reviewed-by: shade, kbarrett, aph

! src/hotspot/cpu/aarch64/gc/shared/barrierSetAssembler_aarch64.cpp

Changeset: 95730229
Author:    Patricio Chilano Mateo <pchilanomate at openjdk.org>
Date:      2021-09-30 16:02:14 +0000
URL:       https://git.openjdk.java.net/loom/commit/9573022978bfeff55b51fa6f30027f59a0783d31

8253197: vmTestbase/nsk/jvmti/StopThread/stopthrd007/TestDescription.java fails with "ERROR: DebuggeeSleepingThread: ThreadDeath lost"

Reviewed-by: dholmes, cjplummer, sspitsyn

! test/hotspot/jtreg/vmTestbase/nsk/jvmti/StopThread/stopthrd007.java

Changeset: 8215b2eb
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2021-09-30 16:58:53 +0000
URL:       https://git.openjdk.java.net/loom/commit/8215b2eb61bd89c4041420e1c5c673603d6b2119

8274398: Suppress more warnings on non-serializable non-transient instance fields in management libs

Reviewed-by: sspitsyn

! src/java.management/share/classes/javax/management/loading/MLet.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/ConnectorImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/EventSetImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/VMAction.java
! src/jdk.management.agent/share/classes/sun/management/jmxremote/SingleEntryRegistry.java
! src/jdk.management/share/classes/com/sun/management/internal/GarbageCollectionNotifInfoCompositeData.java
! src/jdk.management/share/classes/com/sun/management/internal/GcInfoCompositeData.java
! src/jdk.management/share/classes/com/sun/management/internal/VMOptionCompositeData.java

Changeset: 73264811
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2021-09-30 17:39:05 +0000
URL:       https://git.openjdk.java.net/loom/commit/7326481143c1321700cbf2caa9e068c5077e22c4

8274393: Suppress more warnings on non-serializable non-transient instance fields in security libs

Reviewed-by: weijun

! src/java.base/share/classes/com/sun/crypto/provider/PBKDF2KeyImpl.java
! src/java.xml.crypto/share/classes/com/sun/org/apache/xml/internal/security/signature/MissingResourceFailureException.java
! src/java.xml.crypto/share/classes/javax/xml/crypto/URIReferenceException.java
! src/jdk.crypto.cryptoki/share/classes/sun/security/pkcs11/P11Key.java
! src/jdk.crypto.cryptoki/share/classes/sun/security/pkcs11/SunPKCS11.java
! src/jdk.crypto.cryptoki/share/classes/sun/security/pkcs11/Token.java
! src/jdk.crypto.ec/share/classes/sun/security/ec/ECPrivateKeyImpl.java
! src/jdk.crypto.ec/share/classes/sun/security/ec/ECPublicKeyImpl.java
! src/jdk.crypto.ec/share/classes/sun/security/ec/XDHPrivateKeyImpl.java
! src/jdk.crypto.ec/share/classes/sun/security/ec/XDHPublicKeyImpl.java
! src/jdk.crypto.ec/share/classes/sun/security/ec/ed/EdDSAPrivateKeyImpl.java
! src/jdk.crypto.ec/share/classes/sun/security/ec/ed/EdDSAPublicKeyImpl.java

Changeset: a8edd1b3
Author:    Jie Fu <jiefu at openjdk.org>
Date:      2021-09-30 23:11:56 +0000
URL:       https://git.openjdk.java.net/loom/commit/a8edd1b360d4e5f35aff371a91fda42eeb00d395

8274527: Minimal VM build fails after JDK-8273459

Reviewed-by: kvn

! src/hotspot/cpu/x86/macroAssembler_x86.cpp
! src/hotspot/cpu/x86/macroAssembler_x86.hpp
! src/hotspot/cpu/x86/macroAssembler_x86_adler.cpp
! src/hotspot/cpu/x86/stubGenerator_x86_64.cpp

Changeset: 2e690ba8
Author:    Kim Barrett <kbarrett at openjdk.org>
Date:      2021-10-01 00:25:35 +0000
URL:       https://git.openjdk.java.net/loom/commit/2e690ba8bda30902f1188cabad63fb60f4eb828f

8274322: Problems with oopDesc construction

Reviewed-by: dholmes, stefank

! src/hotspot/share/oops/instanceOop.hpp
! src/hotspot/share/oops/markWord.hpp
! src/hotspot/share/oops/objArrayOop.hpp
! src/hotspot/share/oops/oop.hpp
! src/hotspot/share/oops/typeArrayOop.hpp

Changeset: 5e4b514e
Author:    Martin Doerr <mdoerr at openjdk.org>
Date:      2021-10-01 08:20:51 +0000
URL:       https://git.openjdk.java.net/loom/commit/5e4b514e6e7e1b9f51fac1983b6c12a988f7f5a8

8274550: c2i entry barriers read int as long on PPC

Reviewed-by: eosterlund, shade

! src/hotspot/cpu/ppc/gc/shared/barrierSetAssembler_ppc.cpp

Changeset: b7b78ff1
Author:    Ao Qi <aoqi at openjdk.org>
Committer: Jie Fu <jiefu at openjdk.org>
Date:      2021-10-01 08:52:04 +0000
URL:       https://git.openjdk.java.net/loom/commit/b7b78ff1f380d19214dbca48455772bc87cc137d

8274561: sun/net/ftp/TestFtpTimeValue.java timed out on slow machines

Reviewed-by: jiefu, dfuchs

! test/jdk/sun/net/ftp/TestFtpTimeValue.java

Changeset: 18870284
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2021-10-01 08:53:04 +0000
URL:       https://git.openjdk.java.net/loom/commit/18870284084aaaf729640de0105ce21e253546b9

8269113: Javac throws when compiling switch (null)

Co-authored-by: Guoxiong Li <gli at openjdk.org>
Reviewed-by: vromero

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/TransPatterns.java
! test/langtools/tools/javac/patterns/SwitchErrors.java
! test/langtools/tools/javac/patterns/SwitchErrors.out
! test/langtools/tools/javac/patterns/Switches.java

Changeset: 292d7bb1
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2021-10-01 08:54:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/292d7bb1d5d311b517b2cd6d0f6dc77e35b3f649

8274363: Transitively sealed classes not considered exhaustive in switches

Reviewed-by: vromero

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Flow.java
! test/langtools/tools/javac/patterns/Exhaustiveness.java

Changeset: cc14c6f0
Author:    Aleksei Efimov <aefimov at openjdk.org>
Date:      2021-10-01 09:48:09 +0000
URL:       https://git.openjdk.java.net/loom/commit/cc14c6f076356731f78aea4e890027f4e2a91642

8274227: Remove "impl.prefix" jdk system property usage from InetAddress

Reviewed-by: alanb, dfuchs

! src/java.base/share/classes/java/net/Inet4AddressImpl.java
! src/java.base/share/classes/java/net/Inet6AddressImpl.java
! src/java.base/share/classes/java/net/InetAddress.java
! src/java.base/share/classes/java/net/InetAddressImpl.java

Changeset: c05dc268
Author:    Ekaterina Vergizova <evergizova at openjdk.org>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2021-10-01 12:53:08 +0000
URL:       https://git.openjdk.java.net/loom/commit/c05dc268acaf87236f30cf700ea3ac778e3b20e5

8274435: EXCEPTION_ACCESS_VIOLATION in BFSClosure::closure_impl

Reviewed-by: stefank

! src/hotspot/share/jfr/leakprofiler/chains/bitset.cpp

Changeset: 3d7671b6
Author:    Brian Burkhalter <bpb at openjdk.org>
Date:      2021-10-01 15:30:55 +0000
URL:       https://git.openjdk.java.net/loom/commit/3d7671b65e8491f3b1fcac8b96401401f783c9f4

8274562: (fs) UserDefinedFileAttributeView doesn't correctly determine if supported when using OverlayFS

Reviewed-by: alanb

! src/java.base/unix/native/libnio/fs/UnixNativeDispatcher.c

Changeset: 05d38604
Author:    Pavel Rappo <prappo at openjdk.org>
Date:      2021-10-01 16:15:48 +0000
URL:       https://git.openjdk.java.net/loom/commit/05d38604a2c620dcaf8682f02dae2fddab8e0c0b

8274605: Fix predicate guarantees on returned values in (Doc)SourcePositions

Reviewed-by: jlahoda, jjg

! src/jdk.compiler/share/classes/com/sun/source/util/DocSourcePositions.java
! src/jdk.compiler/share/classes/com/sun/source/util/SourcePositions.java

Changeset: bb4500d0
Author:    Alexey Ivanov <aivanov at openjdk.org>
Date:      2021-10-01 18:41:51 +0000
URL:       https://git.openjdk.java.net/loom/commit/bb4500d0d227cbb238bd6c862e143f864106a31a

8274465: Fix javax/swing/text/ParagraphView/6364882/bug6364882.java failures

Reviewed-by: jiefu, serb

! test/jdk/javax/swing/text/ParagraphView/6364882/bug6364882.java

Changeset: 0786d8b7
Author:    Brian Burkhalter <bpb at openjdk.org>
Date:      2021-10-01 20:15:44 +0000
URL:       https://git.openjdk.java.net/loom/commit/0786d8b7b367e3aa3ffa54a3e339572938378dca

8268435: (ch) ChannelInputStream could override readAllBytes

Reviewed-by: alanb, lancea

! src/java.base/share/classes/java/io/FileInputStream.java
! src/java.base/share/classes/sun/nio/ch/ChannelInputStream.java
+ test/jdk/java/nio/channels/Channels/ReadXBytes.java

Changeset: 9ca6bf0d
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-02 03:06:29 +0000
URL:       https://git.openjdk.java.net/loom/commit/9ca6bf0d22ac39d4ee29c756903038f09087ca12

8274505: Too weak variable type leads to unnecessary cast in java.desktop

Reviewed-by: serb, kizune, pbansal

! src/java.desktop/share/classes/com/sun/media/sound/SoftSynthesizer.java
! src/java.desktop/share/classes/javax/swing/JFormattedTextField.java
! src/java.desktop/share/classes/javax/swing/JRootPane.java
! src/java.desktop/share/classes/javax/swing/JTree.java
! src/java.desktop/share/classes/javax/swing/plaf/synth/SynthParser.java
! src/java.desktop/share/classes/javax/swing/text/html/AccessibleHTML.java
! src/java.desktop/share/classes/javax/swing/text/html/HTMLDocument.java
! src/java.desktop/share/classes/javax/swing/text/html/HTMLEditorKit.java
! src/java.desktop/share/classes/javax/swing/text/rtf/RTFGenerator.java
! src/java.desktop/share/classes/sun/awt/SunToolkit.java
! src/java.desktop/share/classes/sun/java2d/Disposer.java

Changeset: 79579942
Author:    Robbin Ehn <rehn at openjdk.org>
Date:      2021-10-04 06:47:27 +0000
URL:       https://git.openjdk.java.net/loom/commit/7957994273e20d541b8f2a873781be7fedf712f1

8273695: Safepoint deadlock on VMOperation_lock

Reviewed-by: dcubed, pchilanomate, eosterlund

! src/hotspot/share/runtime/safepointMechanism.hpp
! src/hotspot/share/runtime/safepointMechanism.inline.hpp
! src/hotspot/share/runtime/stackWatermarkSet.cpp
! src/hotspot/share/runtime/stackWatermarkSet.hpp
! test/hotspot/jtreg/ProblemList.txt

Changeset: 32811026
Author:    Prasanta Sadhukhan <psadhukhan at openjdk.org>
Date:      2021-10-04 06:49:10 +0000
URL:       https://git.openjdk.java.net/loom/commit/32811026ce5ecb1d27d835eac33de9ccbd51fcbf

8268084: [macos] Disabled JMenuItem arrow is not disabled

Reviewed-by: serb, jdv

! src/java.desktop/macosx/classes/com/apple/laf/AquaImageFactory.java
+ test/jdk/javax/swing/plaf/aqua/JMenuItemDisableArrowButtonTest.java

Changeset: 6726c592
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Pankaj Bansal <pbansal at openjdk.org>
Date:      2021-10-04 10:27:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/6726c592ed01b112f5eb85d8f1e4406b25c8df2b

8274634: Use String.equals instead of String.compareTo in java.desktop

Reviewed-by: serb, pbansal

! src/java.desktop/macosx/classes/sun/lwawt/macosx/CAccessible.java
! src/java.desktop/share/classes/javax/swing/JList.java
! src/java.desktop/share/classes/javax/swing/JTable.java

Changeset: 0828273b
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-10-04 12:22:55 +0000
URL:       https://git.openjdk.java.net/loom/commit/0828273b898cca5368344e75f1c3f4c3a29dde80

8274521: jdk/jfr/event/gc/detailed/TestGCLockerEvent.java fails when other GC is selected

Reviewed-by: kbarrett, tschatzl

! test/jdk/jdk/jfr/event/gc/detailed/TestGCLockerEvent.java

Changeset: 47bfc8aa
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-10-04 12:35:58 +0000
URL:       https://git.openjdk.java.net/loom/commit/47bfc8aa9367ff852ea5d901f1fa3c6ef316913e

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

Reviewed-by: egahlin

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

Changeset: 7eb0372e
Author:    Alex Kasko <akasko at openjdk.org>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2021-10-04 12:38:34 +0000
URL:       https://git.openjdk.java.net/loom/commit/7eb0372e55f23275b12470593adc97f1b79bc965

8274606: Fix jaxp/javax/xml/jaxp/unittest/transform/SurrogateTest.java test

Reviewed-by: joehw, shade

! test/jaxp/javax/xml/jaxp/unittest/transform/SurrogateTest.java

Changeset: f2404d60
Author:    Naoto Sato <naoto at openjdk.org>
Date:      2021-10-04 15:06:48 +0000
URL:       https://git.openjdk.java.net/loom/commit/f2404d60de2b58c590bf885f5cce50c289073673

8274658: ISO 4217 Amendment 170 Update

Reviewed-by: lancea, iris

! make/data/currency/CurrencyData.properties
! src/java.base/share/classes/sun/util/resources/CurrencyNames.properties
! test/jdk/java/util/Currency/ValidateISO4217.java
! test/jdk/java/util/Currency/tablea1.txt
! test/jdk/sun/text/resources/LocaleData
! test/jdk/sun/text/resources/LocaleDataTest.java

Changeset: f63c4a83
Author:    Weijun Wang <weijun at openjdk.org>
Date:      2021-10-04 15:30:44 +0000
URL:       https://git.openjdk.java.net/loom/commit/f63c4a832a1aea451f47aaf86d5361e970c6a28f

8274471: Verification of OCSP Response signed with RSASSA-PSS fails

Reviewed-by: hchao, jnimeh

! src/java.base/share/classes/sun/security/provider/certpath/OCSP.java
! src/java.base/share/classes/sun/security/provider/certpath/OCSPResponse.java
! src/java.base/share/classes/sun/security/util/SignatureUtil.java
! src/java.base/share/classes/sun/security/x509/AlgorithmId.java
! src/java.base/share/classes/sun/security/x509/X509CRLImpl.java
! src/java.base/share/classes/sun/security/x509/X509CertImpl.java
! test/jdk/java/security/testlibrary/CertificateBuilder.java
! test/jdk/java/security/testlibrary/SimpleOCSPServer.java
! test/jdk/javax/net/ssl/Stapling/HttpsUrlConnClient.java

Changeset: 139a8334
Author:    Adam Sotona <asotona at openjdk.org>
Date:      2021-10-04 15:48:09 +0000
URL:       https://git.openjdk.java.net/loom/commit/139a8334cbc0c8e1a7a708efe18bd488d28292fd

8268869: java in source-file mode suggests javac-only Xlint flags

Reviewed-by: jjg

! src/jdk.compiler/share/classes/com/sun/tools/javac/launcher/Main.java
! test/langtools/tools/javac/launcher/SourceLauncherTest.java

Changeset: 6f727d83
Author:    Jonathan Gibbons <jjg at openjdk.org>
Date:      2021-10-04 16:58:23 +0000
URL:       https://git.openjdk.java.net/loom/commit/6f727d831d8f8fb9b44f4c6bdbdd6ae44316a5d8

8274666: rename HtmlStyle.descfrmTypeLabel to be less cryptic

Reviewed-by: hannesw

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/Contents.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/MethodWriterImpl.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/PropertyWriterImpl.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/markup/HtmlStyle.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/resources/stylesheet.css
! test/langtools/jdk/javadoc/doclet/testInterface/TestInterface.java
! test/langtools/jdk/javadoc/doclet/testOptions/custom-stylesheet.css
! test/langtools/jdk/javadoc/doclet/testOverriddenMethods/TestOverriddenMethodDocCopy.java
! test/langtools/jdk/javadoc/doclet/testOverriddenMethods/TestOverrideMethods.java
! test/langtools/jdk/javadoc/doclet/testPrivateClasses/TestPrivateClasses.java
! test/langtools/jdk/javadoc/doclet/testReturnTag/TestReturnTag.java

Changeset: 0ca094bc
Author:    Jonathan Gibbons <jjg at openjdk.org>
Date:      2021-10-04 16:59:30 +0000
URL:       https://git.openjdk.java.net/loom/commit/0ca094bc5f568842b1619229206ec4a385e5ebf6

8273244: Improve diagnostic output related to ErroneousTree

Reviewed-by: prappo

! src/jdk.compiler/share/classes/com/sun/tools/javac/api/JavacTrees.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/parser/DocCommentParser.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/parser/ReferenceParser.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/tree/DCTree.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/tree/DocTreeMaker.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/util/AbstractLog.java
! src/jdk.compiler/share/classes/jdk/internal/shellsupport/doc/JavadocHelper.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclint/DocLint.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/tool/JavadocLog.java
! test/langtools/tools/doclint/CrashInAnnotateTest.out
! test/langtools/tools/doclint/EndWithIdentifierTest.out
! test/langtools/tools/doclint/UnfinishedInlineTagTest.out
! test/langtools/tools/doclint/tidy/README.txt
! test/langtools/tools/doclint/tidy/UnescapedOrUnknownEntity.out
! test/langtools/tools/javac/doctree/AttrTest.java
! test/langtools/tools/javac/doctree/AuthorTest.java
! test/langtools/tools/javac/doctree/BadTest.java
! test/langtools/tools/javac/doctree/CodeTest.java
+ test/langtools/tools/javac/doctree/CoverageTest.java
! test/langtools/tools/javac/doctree/DeprecatedTest.java
! test/langtools/tools/javac/doctree/DocCommentTester.java
! test/langtools/tools/javac/doctree/DocRootTest.java
! test/langtools/tools/javac/doctree/ElementTest.java
! test/langtools/tools/javac/doctree/EntityTest.java
! test/langtools/tools/javac/doctree/ExceptionTest.java
! test/langtools/tools/javac/doctree/FirstSentenceTest.java
! test/langtools/tools/javac/doctree/HiddenTest.java
! test/langtools/tools/javac/doctree/InPreTest.java
! test/langtools/tools/javac/doctree/IndexTest.java
! test/langtools/tools/javac/doctree/InheritDocTest.java
! test/langtools/tools/javac/doctree/LinkPlainTest.java
! test/langtools/tools/javac/doctree/LinkTest.java
! test/langtools/tools/javac/doctree/LiteralTest.java
! test/langtools/tools/javac/doctree/ParamTest.java
! test/langtools/tools/javac/doctree/ProvidesTest.java
! test/langtools/tools/javac/doctree/ReturnTest.java
! test/langtools/tools/javac/doctree/SeeTest.java
! test/langtools/tools/javac/doctree/SerialDataTest.java
! test/langtools/tools/javac/doctree/SerialFieldTest.java
! test/langtools/tools/javac/doctree/SerialTest.java
! test/langtools/tools/javac/doctree/SinceTest.java
! test/langtools/tools/javac/doctree/SummaryTest.java
! test/langtools/tools/javac/doctree/SystemPropertyTest.java
! test/langtools/tools/javac/doctree/TagTest.java
! test/langtools/tools/javac/doctree/ThrowableTest.java
! test/langtools/tools/javac/doctree/UsesTest.java
! test/langtools/tools/javac/doctree/ValueTest.java
! test/langtools/tools/javac/doctree/VersionTest.java
! test/langtools/tools/javac/doctree/positions/TestPosition.java
! test/langtools/tools/javac/tree/AbstractTreeScannerTest.java

Changeset: 9914e5c4
Author:    Mikhailo Seledtsov <mseledtsov at openjdk.org>
Date:      2021-10-04 17:20:05 +0000
URL:       https://git.openjdk.java.net/loom/commit/9914e5c416b518f408837e31ba0a35138bfcadc7

8274610: Add linux-aarch64 to bootcycle build profiles

Reviewed-by: erikj

! make/conf/jib-profiles.js

Changeset: 75d6688d
Author:    Jonathan Gibbons <jjg at openjdk.org>
Date:      2021-10-04 19:00:21 +0000
URL:       https://git.openjdk.java.net/loom/commit/75d6688df9845ecb8f370b4cd2d5a36f13d3cdc0

8274745: ProblemList TestSnippetTag.java

Reviewed-by: prappo

! test/langtools/ProblemList.txt

Changeset: 7e757f6a
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2021-10-04 21:19:19 +0000
URL:       https://git.openjdk.java.net/loom/commit/7e757f6a2cbfd03ba9ac602b800d15ba33f6f5f4

8274559: JFR: Typo in 'jfr help configure' text

Reviewed-by: iris, mikael

! src/jdk.jfr/share/classes/jdk/jfr/internal/tool/Configure.java

Changeset: 2e542e33
Author:    David Holmes <dholmes at openjdk.org>
Date:      2021-10-04 23:14:12 +0000
URL:       https://git.openjdk.java.net/loom/commit/2e542e33b81a53652956bb5e9636e7f4af5540f7

8274349: ForkJoinPool.commonPool() does not work with 1 CPU

Co-authored-by: Doug Lea <dl at openjdk.org>
Reviewed-by: shade, martin

! src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java
+ test/jdk/java/util/concurrent/forkjoin/Uniprocessor.java
! test/jdk/java/util/concurrent/tck/ForkJoinPoolTest.java

Changeset: e43f540c
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-05 00:53:17 +0000
URL:       https://git.openjdk.java.net/loom/commit/e43f540cde58ee973b97a943f14d3c60e064b801

8274651: Possible race in FontDesignMetrics.KeyReference.dispose

Reviewed-by: prr, serb

! src/java.desktop/share/classes/sun/font/FontDesignMetrics.java

Changeset: 53d7e95b
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-05 06:39:29 +0000
URL:       https://git.openjdk.java.net/loom/commit/53d7e95bc637c8b629efc4587b2ae7961d719b00

8274635: Use String.equals instead of String.compareTo in jdk.accessibility

Reviewed-by: serb

! src/jdk.accessibility/share/classes/com/sun/java/accessibility/util/AccessibilityEventMonitor.java
! src/jdk.accessibility/windows/classes/com/sun/java/accessibility/internal/AccessBridge.java

Changeset: 3953e077
Author:    Christian Hagedorn <chagedorn at openjdk.org>
Date:      2021-10-05 07:02:06 +0000
URL:       https://git.openjdk.java.net/loom/commit/3953e0774c59c5e936e752aa08b6b6778e232994

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

Reviewed-by: roland, thartmann, neliasso

! src/hotspot/share/opto/stringopts.cpp
+ test/hotspot/jtreg/compiler/c2/irTests/stringopts/TestNegativeArraySize.java
! test/hotspot/jtreg/compiler/lib/ir_framework/IRNode.java
! test/hotspot/jtreg/testlibrary_tests/ir_framework/tests/TestIRMatching.java

Changeset: 8f7a37c9
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2021-10-05 07:25:00 +0000
URL:       https://git.openjdk.java.net/loom/commit/8f7a37c92f5713f7728f54d4a5924484a535e968

8274434: move os::get_default_process_handle and os::dll_lookup to os_posix for POSIX platforms

Reviewed-by: dholmes, lucy

! src/hotspot/os/aix/os_aix.cpp
! src/hotspot/os/bsd/os_bsd.cpp
! src/hotspot/os/linux/os_linux.cpp
! src/hotspot/os/posix/os_posix.cpp

Changeset: a914ee72
Author:    Kim Barrett <kbarrett at openjdk.org>
Date:      2021-10-05 08:07:02 +0000
URL:       https://git.openjdk.java.net/loom/commit/a914ee72167f642b76b1c1cdddd7ff0698d061cc

8274632: Possible pointer overflow in PretouchTask chunk claiming

Reviewed-by: tschatzl, ayang

! src/hotspot/share/gc/shared/pretouchTask.cpp
! src/hotspot/share/gc/shared/pretouchTask.hpp

Changeset: a5080eff
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2021-10-05 10:17:24 +0000
URL:       https://git.openjdk.java.net/loom/commit/a5080effc7ec7e260e84e3169c36c5217f18d231

8272564: Incorrect attribution of method invocations of Object methods on interfaces

Reviewed-by: jlaskey, mcimadamore, vromero

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Resolve.java
! test/langtools/tools/javac/api/TestGetElementReference.java
! test/langtools/tools/javac/api/TestGetElementReferenceData.java
+ test/langtools/tools/javac/api/TestIsAccessible.java
+ test/langtools/tools/javac/resolve/NoObjectToString.java

Changeset: 8609ea55
Author:    Harold Seigel <hseigel at openjdk.org>
Date:      2021-10-05 12:39:56 +0000
URL:       https://git.openjdk.java.net/loom/commit/8609ea55acdcc203408f58f7bf96ea9228aef613

8273342: Null pointer dereference in classFileParser.cpp:2817

Reviewed-by: coleenp, dholmes

! src/hotspot/share/runtime/fieldDescriptor.cpp

Changeset: 1459180f
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Weijun Wang <weijun at openjdk.org>
Date:      2021-10-05 13:36:37 +0000
URL:       https://git.openjdk.java.net/loom/commit/1459180f352a5632c0afca2ed55abf31e4b0bfb0

8274079: Cleanup unnecessary calls to Throwable.initCause() in java.base module

Reviewed-by: weijun

! src/java.base/share/classes/com/sun/crypto/provider/AESCipher.java
! src/java.base/share/classes/com/sun/crypto/provider/ConstructKeys.java
! src/java.base/share/classes/com/sun/crypto/provider/DESedeWrapCipher.java
! src/java.base/share/classes/com/sun/crypto/provider/DHPrivateKey.java
! src/java.base/share/classes/com/sun/crypto/provider/PBES2Core.java
! src/java.base/share/classes/com/sun/crypto/provider/PBEWithMD5AndDESCipher.java
! src/java.base/share/classes/com/sun/crypto/provider/PBEWithMD5AndTripleDESCipher.java
! src/java.base/share/classes/com/sun/crypto/provider/PBKDF2Core.java
! src/java.base/share/classes/com/sun/crypto/provider/PBKDF2HmacSHA1Factory.java
! src/java.base/share/classes/com/sun/crypto/provider/PBKDF2KeyImpl.java
! src/java.base/share/classes/com/sun/crypto/provider/PBMAC1Core.java
! src/java.base/share/classes/com/sun/crypto/provider/RSACipher.java
! src/java.base/share/classes/java/io/ObjectStreamClass.java
! src/java.base/share/classes/java/security/cert/TrustAnchor.java
! src/java.base/share/classes/java/security/cert/X509CRLSelector.java
! src/java.base/share/classes/java/time/Duration.java
! src/java.base/share/classes/javax/net/ssl/SSLContext.java
! src/java.base/share/classes/javax/security/auth/login/Configuration.java
! src/java.base/share/classes/javax/security/auth/x500/X500Principal.java
! src/java.base/share/classes/sun/security/provider/DigestBase.java
! src/java.base/share/classes/sun/security/provider/JavaKeyStore.java
! src/java.base/share/classes/sun/security/util/HostnameChecker.java

Changeset: 7ad74d82
Author:    Peter Levart <plevart at openjdk.org>
Date:      2021-10-05 14:16:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/7ad74d82d7117113dd73966a0dd96168adfd6463

8274299: Make Method/Constructor/Field accessors @Stable

Reviewed-by: redestad, mchung

! src/java.base/share/classes/java/lang/reflect/Constructor.java
! src/java.base/share/classes/java/lang/reflect/Field.java
! src/java.base/share/classes/java/lang/reflect/Method.java
! src/java.base/share/classes/jdk/internal/reflect/DelegatingConstructorAccessorImpl.java
! src/java.base/share/classes/jdk/internal/reflect/DelegatingMethodAccessorImpl.java
! src/java.base/share/classes/jdk/internal/reflect/FieldAccessorImpl.java
! src/java.base/share/classes/jdk/internal/reflect/NativeConstructorAccessorImpl.java
! src/java.base/share/classes/jdk/internal/reflect/NativeMethodAccessorImpl.java
! src/java.base/share/classes/jdk/internal/reflect/ReflectionFactory.java
! src/java.base/share/classes/jdk/internal/reflect/UnsafeFieldAccessorImpl.java
! src/java.base/share/classes/jdk/internal/reflect/UnsafeStaticFieldAccessorImpl.java
+ test/micro/org/openjdk/bench/java/lang/reflect/ReflectionColdstartBenchmark.java
+ test/micro/org/openjdk/bench/java/lang/reflect/ReflectionSpeedBenchmark.java

Changeset: bb0bab57
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2021-10-05 14:31:17 +0000
URL:       https://git.openjdk.java.net/loom/commit/bb0bab57a1ff447bfb41cfe10c91838a6812b93d

8274286: Skip null for make_referent_alive in referenceProcessor

Reviewed-by: kbarrett, tschatzl

! src/hotspot/share/gc/shared/referenceProcessor.cpp

Changeset: 90a5ae80
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2021-10-05 15:13:54 +0000
URL:       https://git.openjdk.java.net/loom/commit/90a5ae802e6ef0a6d0a5096a595b0680069960c3

8274282: Clarify special wait assert

Reviewed-by: dholmes, pchilanomate

! src/hotspot/share/runtime/mutex.cpp
! test/hotspot/gtest/runtime/test_mutex.cpp

Changeset: 92b64a20
Author:    Jonathan Gibbons <jjg at openjdk.org>
Date:      2021-10-05 15:21:44 +0000
URL:       https://git.openjdk.java.net/loom/commit/92b64a2053e3f3e0314ed489b92afd37c285ac5f

8273745: VerifyLocale.java occasionally times out

Reviewed-by: prappo

! test/langtools/jdk/javadoc/tool/VerifyLocale.java

Changeset: 4e3948f1
Author:    Jonathan Gibbons <jjg at openjdk.org>
Date:      2021-10-05 15:27:02 +0000
URL:       https://git.openjdk.java.net/loom/commit/4e3948f18b9b8dab96239ad24473134b712ada1a

8274744: TestSnippetTag test fails after recent integration

Reviewed-by: prappo

! test/langtools/ProblemList.txt
! test/langtools/jdk/javadoc/doclet/testSnippetTag/TestSnippetTag.java

Changeset: e1f0df0d
Author:    Hannes Walln?fer <hannesw at openjdk.org>
Date:      2021-10-05 16:57:12 +0000
URL:       https://git.openjdk.java.net/loom/commit/e1f0df0de3b205cecdb1aa1d74562536c06097dd

8267853: Remove unused styles from stylesheet

Reviewed-by: prappo

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/resources/stylesheet.css
! test/langtools/jdk/javadoc/doclet/checkStylesheetClasses/CheckStylesheetClasses.java
! test/langtools/jdk/javadoc/doclet/testStylesheet/TestStylesheet.java

Changeset: 37890650
Author:    Phil Race <prr at openjdk.org>
Date:      2021-10-05 17:30:31 +0000
URL:       https://git.openjdk.java.net/loom/commit/37890650a7c97d484b6b520d909f677dac4e46e1

8274397: [macOS] Stop setting env. var JAVA_MAIN_CLASS_<pid> in launcher code

Reviewed-by: rriggs, serb

! src/java.base/macosx/native/libjli/java_md_macosx.m
! src/java.desktop/macosx/native/libosxapp/NSApplicationAWT.m
+ test/jdk/tools/launcher/MacOSAppNamePropertyTest.java
+ test/jdk/tools/launcher/SystemPropertyTest.java
! test/jdk/tools/launcher/TestSpecialArgs.java

Changeset: c391e59e
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2021-10-05 17:31:57 +0000
URL:       https://git.openjdk.java.net/loom/commit/c391e59ea6fe6759553425e342b2d97824dd9323

8274244: ReportOnImportedModuleAnnotation.java fails on rerun

Reviewed-by: jjg

! test/langtools/tools/javac/processing/ReportOnImportedModuleAnnotation/ReportOnImportedModuleAnnotation.java

Changeset: 03d3c033
Author:    Weijun Wang <weijun at openjdk.org>
Date:      2021-10-05 18:18:51 +0000
URL:       https://git.openjdk.java.net/loom/commit/03d3c0338437bf10b631881c8910ca85985742f6

8273670: Remove weak etypes from default krb5 etype list

Reviewed-by: valeriep, mullan

! src/java.security.jgss/share/classes/sun/security/krb5/internal/crypto/EType.java
! test/jdk/sun/security/krb5/auto/DupEtypes.java
! test/jdk/sun/security/krb5/auto/OneKDC.java
! test/jdk/sun/security/krb5/auto/W83.java
! test/jdk/sun/security/krb5/config/YesNo.java
! test/jdk/sun/security/krb5/config/yesno.conf
! test/jdk/sun/security/krb5/etype/WeakCrypto.java

Changeset: 1e752033
Author:    Weijun Wang <weijun at openjdk.org>
Date:      2021-10-05 18:19:45 +0000
URL:       https://git.openjdk.java.net/loom/commit/1e75203356666a3213deddd775ad1e883ea6d78d

8274656: Remove default_checksum and safe_checksum_type from krb5.conf

Reviewed-by: valeriep

! src/java.security.jgss/share/classes/sun/security/krb5/Checksum.java
! src/java.security.jgss/share/classes/sun/security/krb5/Config.java
! src/java.security.jgss/share/classes/sun/security/krb5/EncryptedData.java
- src/java.security.jgss/share/classes/sun/security/krb5/KrbAppMessage.java
- src/java.security.jgss/share/classes/sun/security/krb5/KrbPriv.java
- src/java.security.jgss/share/classes/sun/security/krb5/KrbSafe.java
! src/java.security.jgss/share/classes/sun/security/krb5/KrbTgsReq.java
- src/java.security.jgss/share/classes/sun/security/krb5/internal/AuthContext.java
- src/java.security.jgss/share/classes/sun/security/krb5/internal/EncKrbPrivPart.java
- src/java.security.jgss/share/classes/sun/security/krb5/internal/KRBPriv.java
- src/java.security.jgss/share/classes/sun/security/krb5/internal/KRBSafe.java
- src/java.security.jgss/share/classes/sun/security/krb5/internal/KRBSafeBody.java
- src/java.security.jgss/share/classes/sun/security/krb5/internal/MethodData.java

Changeset: 332f0673
Author:    Jonathan Gibbons <jjg at openjdk.org>
Date:      2021-10-05 18:54:19 +0000
URL:       https://git.openjdk.java.net/loom/commit/332f0673880d547a5f09cb4efd3b952868a84b91

8274729: Define Position.NOPOS == Diagnostic.NOPOS

Reviewed-by: jlahoda

! src/jdk.compiler/share/classes/com/sun/tools/javac/util/Position.java

Changeset: d34ec6cc
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2021-10-05 19:10:29 +0000
URL:       https://git.openjdk.java.net/loom/commit/d34ec6ccfc27d9401acce0e03595b910764fbfaf

8274793: Suppress warnings on non-serializable non-transient instance fields in sun.net

Reviewed-by: alanb

! src/java.base/share/classes/sun/net/www/http/KeepAliveCache.java
! src/java.base/unix/classes/sun/net/www/protocol/http/ntlm/NTLMAuthentication.java

Changeset: 83b22192
Author:    Igor Veresov <iveresov at openjdk.org>
Date:      2021-10-05 19:44:17 +0000
URL:       https://git.openjdk.java.net/loom/commit/83b2219220266c1365466970d08606fef766c4fa

8273612: Fix for JDK-8272873 causes timeout in running some tests with -Xcomp

Reviewed-by: kvn, neliasso

! src/hotspot/share/compiler/compilationPolicy.cpp
! test/hotspot/jtreg/compiler/jvmci/compilerToVM/IsMatureTest.java
! test/hotspot/jtreg/compiler/jvmci/compilerToVM/IsMatureVsReprofileTest.java

Changeset: 47262670
Author:    Christoph Langer <clanger at openjdk.org>
Date:      2021-10-05 21:06:52 +0000
URL:       https://git.openjdk.java.net/loom/commit/47262670f371923a704ec521da40010c2a46be5a

8274642: jdk/jshell/CommandCompletionTest.java fails with NoSuchElementException after JDK-8271287

Reviewed-by: jlahoda

! test/langtools/jdk/jshell/CommandCompletionTest.java

Changeset: d4e8712c
Author:    Daniel D. Daugherty <dcubed at openjdk.org>
Date:      2021-10-05 21:47:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/d4e8712c0acc786e64f81ad29e54e6e50134f0e0

8274797: ProblemList resourcehogs/serviceability/sa/TestHeapDumpForLargeArray.java on macosx-x64

Reviewed-by: darcy

! test/hotspot/jtreg/ProblemList.txt

Changeset: df7b0c70
Author:    Sergey Tsypanov <sergei.tsypanov at yandex.ru>
Committer: Martin Buchholz <martin at openjdk.org>
Date:      2021-10-05 22:19:35 +0000
URL:       https://git.openjdk.java.net/loom/commit/df7b0c707713195c93ff4e745c89155ee8e4c571

8274715: Implement forEach in Collections.CopiesList

Reviewed-by: martin

! src/java.base/share/classes/java/util/Collections.java
+ test/micro/org/openjdk/bench/java/util/NCopiesBenchmarks.java

Changeset: 986ee5d0
Author:    Yasumasa Suenaga <ysuenaga at openjdk.org>
Date:      2021-10-06 00:36:50 +0000
URL:       https://git.openjdk.java.net/loom/commit/986ee5d0bfd407dc1b7ce75c7c94b6585bfb497d

8274670: Improve version string handling in SA

Reviewed-by: cjplummer, sspitsyn

! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/VM.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/VMVersionMismatchException.java

Changeset: 8a4d2b4a
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-06 02:53:09 +0000
URL:       https://git.openjdk.java.net/loom/commit/8a4d2b4aa76e6aae1cb27f476c6cc71dcd9779f0

8274680: Remove unnecessary conversion to String in java.desktop

Reviewed-by: pbansal, jdv, serb, kizune

! src/java.desktop/share/classes/com/sun/imageio/plugins/jpeg/DHTMarkerSegment.java
! src/java.desktop/share/classes/com/sun/imageio/plugins/jpeg/DQTMarkerSegment.java
! src/java.desktop/share/classes/com/sun/imageio/plugins/jpeg/DRIMarkerSegment.java
! src/java.desktop/share/classes/com/sun/imageio/plugins/jpeg/JFIFMarkerSegment.java
! src/java.desktop/share/classes/com/sun/imageio/plugins/png/PNGMetadata.java
! src/java.desktop/share/classes/javax/imageio/plugins/tiff/TIFFField.java
! src/java.desktop/share/classes/javax/swing/DefaultListSelectionModel.java
! src/java.desktop/share/classes/javax/swing/GroupLayout.java
! src/java.desktop/share/classes/javax/swing/event/TreeModelEvent.java
! src/java.desktop/share/classes/javax/swing/text/TabStop.java
! src/java.desktop/share/classes/javax/swing/text/html/OptionListModel.java
! src/java.desktop/share/classes/javax/swing/tree/DefaultTreeSelectionModel.java
! src/java.desktop/share/classes/sun/java2d/marlin/RendererContext.java
! src/java.desktop/share/classes/sun/print/PSPrinterJob.java
! src/java.desktop/share/classes/sun/swing/plaf/synth/DefaultSynthStyle.java
! src/java.desktop/windows/classes/sun/awt/windows/WDesktopProperties.java

Changeset: 2faced09
Author:    Per Liden <pliden at openjdk.org>
Date:      2021-10-06 07:44:47 +0000
URL:       https://git.openjdk.java.net/loom/commit/2faced09ce0f6901dcdc969e6c85f2a5b55778f1

8274738: ZGC: Use relaxed atomic load when reading bits in the live map

Reviewed-by: stefank, eosterlund

! src/hotspot/share/gc/z/zLiveMap.inline.hpp

Changeset: c74726db
Author:    Andrew Haley <aph at openjdk.org>
Date:      2021-10-06 08:18:10 +0000
URL:       https://git.openjdk.java.net/loom/commit/c74726dbd0767d02abf9535361a86ffb69b646d9

8274730: AArch64: AES/GCM acceleration is broken by the fix for JDK-8273297

Reviewed-by: adinn, roland, kvn

! src/hotspot/cpu/aarch64/matcher_aarch64.hpp
! src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp
! src/hotspot/share/opto/library_call.cpp

Changeset: df125f68
Author:    Christian Hagedorn <chagedorn at openjdk.org>
Date:      2021-10-06 08:21:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/df125f680b6a4517109be80512a113064ca6281d

8273410: IR verification framework fails with "Should find method name in validIrRulesMap"

Reviewed-by: thartmann, neliasso

! test/hotspot/jtreg/compiler/lib/ir_framework/test/TestVM.java
! test/hotspot/jtreg/testlibrary_tests/ir_framework/tests/TestBadFormat.java
+ test/hotspot/jtreg/testlibrary_tests/ir_framework/tests/TestCheckedTests.java

Changeset: cdf89304
Author:    Hannes Walln?fer <hannesw at openjdk.org>
Date:      2021-10-06 09:28:37 +0000
URL:       https://git.openjdk.java.net/loom/commit/cdf89304eafce58e66127d4e277f5fcaf07c9954

8274625: Search field placeholder behavior

Reviewed-by: prappo

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/Navigation.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/markup/HtmlAttr.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/markup/HtmlTree.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/resources/search.js.template
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/resources/doclets.properties
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/resources/stylesheet.css
! test/langtools/jdk/javadoc/doclet/checkStylesheetClasses/CheckStylesheetClasses.java
! test/langtools/jdk/javadoc/doclet/testSearch/TestSearch.java
! test/langtools/jdk/javadoc/doclet/testStylesheet/TestStylesheet.java

Changeset: 9759fcb1
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Pankaj Bansal <pbansal at openjdk.org>
Date:      2021-10-06 10:50:38 +0000
URL:       https://git.openjdk.java.net/loom/commit/9759fcb17b62d76d75b893481bbd4ef45e7ad366

8274496: Use String.contains() instead of String.indexOf() in java.desktop

Reviewed-by: pbansal, serb

! src/java.desktop/share/classes/javax/swing/text/html/CSS.java
! src/java.desktop/share/classes/javax/swing/text/html/HTMLDocument.java
! src/java.desktop/share/classes/javax/swing/text/html/HTMLWriter.java
! src/java.desktop/share/classes/javax/swing/text/html/InlineView.java
! src/java.desktop/share/classes/sun/font/Font2D.java
! src/java.desktop/unix/classes/sun/awt/X11/XWM.java
! src/java.desktop/unix/classes/sun/font/NativeFont.java
! src/java.desktop/unix/classes/sun/font/XMap.java
! src/java.desktop/unix/classes/sun/print/IPPPrintService.java
! src/java.desktop/windows/classes/sun/awt/windows/WDataTransferer.java

Changeset: c80a6127
Author:    Kim Barrett <kbarrett at openjdk.org>
Date:      2021-10-06 11:14:26 +0000
URL:       https://git.openjdk.java.net/loom/commit/c80a612709f1e483575e2843c1f0ea84e1b9a257

8273381: Assert in PtrQueueBufferAllocatorTest.stress_free_list_allocator_vm

Reviewed-by: sjohanss, tschatzl

! test/hotspot/gtest/gc/shared/test_ptrQueueBufferAllocator.cpp

Changeset: b8af6a9b
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2021-10-06 12:14:33 +0000
URL:       https://git.openjdk.java.net/loom/commit/b8af6a9bfb28aaf0fea0cfdaba13236dc8cbaa3a

8273917: Remove 'leaf' ranking for Mutex

Reviewed-by: eosterlund, dholmes

! src/hotspot/share/compiler/compileTask.hpp
! src/hotspot/share/gc/shared/space.cpp
! src/hotspot/share/gc/shenandoah/shenandoahControlThread.cpp
! src/hotspot/share/gc/shenandoah/shenandoahPacer.hpp
! src/hotspot/share/oops/methodData.cpp
! src/hotspot/share/runtime/mutex.cpp
! src/hotspot/share/runtime/mutex.hpp
! src/hotspot/share/runtime/mutexLocker.cpp
! src/hotspot/share/services/heapDumper.cpp
! test/hotspot/gtest/runtime/test_mutex.cpp
! test/hotspot/gtest/runtime/test_safepoint_locks.cpp

Changeset: c10de353
Author:    Christian Stein <cstein at openjdk.org>
Committer: Alan Bateman <alanb at openjdk.org>
Date:      2021-10-06 15:11:28 +0000
URL:       https://git.openjdk.java.net/loom/commit/c10de3538b47c182d7bfeb02f348fac9b2ad0641

8262944: Improve exception message when automatic module lists provider class not in JAR file

Reviewed-by: dfuchs, jvernee, alanb, lancea, mchung

! src/java.base/share/classes/jdk/internal/module/ModulePath.java
! test/jdk/java/lang/module/AutomaticModulesTest.java

Changeset: f3cedbe9
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Daniel Fuchs <dfuchs at openjdk.org>
Date:      2021-10-06 18:11:07 +0000
URL:       https://git.openjdk.java.net/loom/commit/f3cedbe9288e7aea8d5603a2dc9bdc2661c391a6

8274464: Remove redundant stream() call before forEach in java.* modules

Reviewed-by: dfuchs, amenkov, vtewari

! src/java.management.rmi/share/classes/javax/management/remote/rmi/RMIJRMPServerImpl.java
! src/java.management/share/classes/java/lang/management/DefaultPlatformMBeanProvider.java
! src/java.xml/share/classes/javax/xml/catalog/CatalogFeatures.java
! src/java.xml/share/classes/javax/xml/catalog/CatalogImpl.java

Changeset: 4e7d7caa
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Daniel Fuchs <dfuchs at openjdk.org>
Date:      2021-10-06 18:17:58 +0000
URL:       https://git.openjdk.java.net/loom/commit/4e7d7caa0ce1a3c9fc45ca6a85b1a7ec209775b2

8273711: Remove redundant stream() call before forEach in jdk.jlink

Reviewed-by: alanb, psandoz, dfuchs

! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/ImageFileCreator.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/ImagePluginConfiguration.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/ImagePluginStack.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/PerfectHashBuilder.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/PluginRepository.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/ResourcePoolConfiguration.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/plugins/ReleaseInfoPlugin.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/plugins/ResourceFilter.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/plugins/StringSharingPlugin.java

Changeset: 754bc82c
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Daniel Fuchs <dfuchs at openjdk.org>
Date:      2021-10-06 18:20:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/754bc82c4c03e1bedb4b36b5c52873b0a78a6ceb

8274525: Replace uses of StringBuffer with StringBuilder in java.xml

Reviewed-by: joehw, iris, naoto, dfuchs

! src/java.xml/share/classes/com/sun/xml/internal/stream/Entity.java
! src/java.xml/share/classes/com/sun/xml/internal/stream/StaxErrorReporter.java
! src/java.xml/share/classes/com/sun/xml/internal/stream/XMLEventReaderImpl.java
! src/java.xml/share/classes/com/sun/xml/internal/stream/events/LocationImpl.java
! src/java.xml/share/classes/javax/xml/datatype/Duration.java

Changeset: 9945f7a0
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Daniel Fuchs <dfuchs at openjdk.org>
Date:      2021-10-06 18:23:46 +0000
URL:       https://git.openjdk.java.net/loom/commit/9945f7a0744db2470bcfa856e8f831b6a6eb2de8

8274318: Replace 'for' cycles with iterator with enhanced-for in java.management

Reviewed-by: cjplummer, sspitsyn, dfuchs

! src/java.management.rmi/share/classes/javax/management/remote/rmi/RMIServerImpl.java
! src/java.management/share/classes/com/sun/jmx/remote/security/MBeanServerFileAccessController.java
! src/java.management/share/classes/javax/management/relation/RoleResult.java

Changeset: 9561fea7
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-06 22:31:23 +0000
URL:       https://git.openjdk.java.net/loom/commit/9561fea79035f23ca3a6619c9e150433cdf4a232

8273102: Delete deprecated for removal the empty finalize() in java.desktop module

Reviewed-by: pbansal, aivanov, iris, prr

! src/java.desktop/share/classes/java/awt/color/ICC_Profile.java
! src/java.desktop/share/classes/java/awt/image/ColorModel.java
! src/java.desktop/share/classes/java/awt/image/IndexColorModel.java

Changeset: 734d1fbd
Author:    Jonathan Gibbons <jjg at openjdk.org>
Date:      2021-10-06 22:40:44 +0000
URL:       https://git.openjdk.java.net/loom/commit/734d1fbd33be0aa20b26e6e8c776709f478069de

8274211: Test man page that options are documented

Reviewed-by: prappo

+ test/langtools/jdk/javadoc/tool/CheckManPageOptions.java

Changeset: d57fb6f6
Author:    lawrence.andrews <lawrence.andrews at oracle.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-06 23:12:56 +0000
URL:       https://git.openjdk.java.net/loom/commit/d57fb6f684eac5a7e68842dcf3284309e3867521

8274456: Remove jtreg tag manual=yesno java/awt/print/PrinterJob/PageDialogTest.java

Reviewed-by: serb

! test/jdk/java/awt/print/PrinterJob/PageDialogTest.java

Changeset: c833b4d1
Author:    Jie Fu <jiefu at openjdk.org>
Date:      2021-10-06 23:22:04 +0000
URL:       https://git.openjdk.java.net/loom/commit/c833b4d130fabfa6a6f3a38313f76eb7e392c6a5

8274329: Fix non-portable HotSpot code in MethodMatcher::parse_method_pattern

Reviewed-by: iklam, ihse, kvn

! src/hotspot/share/compiler/methodMatcher.cpp

Changeset: 4e960fe5
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-07 03:42:50 +0000
URL:       https://git.openjdk.java.net/loom/commit/4e960fe53f0948c0b0decfeb13f6dd8f74bf3d6f

8274497: Unnecessary Vector usage in AquaFileSystemModel

Reviewed-by: serb, pbansal

! src/java.desktop/macosx/classes/com/apple/laf/AquaFileSystemModel.java

Changeset: 5762ec25
Author:    Florian Weimer <fweimer at openjdk.org>
Committer: Alan Bateman <alanb at openjdk.org>
Date:      2021-10-07 07:02:01 +0000
URL:       https://git.openjdk.java.net/loom/commit/5762ec25877ab9207a2fb05888f952690737e318

8274780: ChannelInputStream.readNBytes(int) incorrectly calls readAllBytes()

Reviewed-by: alanb, bpb

! src/java.base/share/classes/sun/nio/ch/ChannelInputStream.java
! test/jdk/java/nio/channels/Channels/ReadXBytes.java

Changeset: 29dcbb72
Author:    Richard Reingruber <rrich at openjdk.org>
Date:      2021-10-07 08:20:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/29dcbb72a2d9b224203d92ad3224cf149a7d08de

8274716: JDWP Spec: the description for the Dispose command confuses suspend with resume.

Reviewed-by: alanb, cjplummer, sspitsyn

! make/data/jdwp/jdwp.spec

Changeset: d5ccfa2a
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Serguei Spitsyn <sspitsyn at openjdk.org>
Date:      2021-10-07 09:38:42 +0000
URL:       https://git.openjdk.java.net/loom/commit/d5ccfa2ae965a9ae0f3597b0b90d702a3e0ea558

8274755: Replace 'while' cycles with iterator with enhanced-for in jdk.jdi

Reviewed-by: alanb, amenkov, sspitsyn, cjplummer

! src/jdk.jdi/share/classes/com/sun/tools/jdi/ConcreteMethodImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/ConnectorImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/EventRequestManagerImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/InvokableTypeImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/ReferenceTypeImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/TargetVM.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/ThreadReferenceImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/VMState.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/VirtualMachineImpl.java

Changeset: 83198361
Author:    Yude Lin <yude.lyd at alibaba-inc.com>
Committer: Thomas Schatzl <tschatzl at openjdk.org>
Date:      2021-10-07 11:28:49 +0000
URL:       https://git.openjdk.java.net/loom/commit/8319836152cbd0aa5bf6c93d3ba04733cacf83b4

8274546: Shenandoah: Remove unused ShenandoahUpdateRootsTask copy

Reviewed-by: zgu, tschatzl

! src/hotspot/share/gc/shenandoah/shenandoahConcurrentMark.cpp

Changeset: 340c715c
Author:    Lin Zang <lzang at openjdk.org>
Date:      2021-10-07 11:57:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/340c715c3b0f5ad5204f9dddb17a787b07426543

8273929: Remove GzipRandomAccess in heap dump test

Reviewed-by: cjplummer, sspitsyn

- test/lib/jdk/test/lib/hprof/parser/GzipRandomAccess.java
! test/lib/jdk/test/lib/hprof/parser/Reader.java

Changeset: 722d639f
Author:    Jie Fu <jiefu at openjdk.org>
Date:      2021-10-07 12:42:16 +0000
URL:       https://git.openjdk.java.net/loom/commit/722d639fad2e4fc6eb2aabd427e2719501899cfe

8274838: runtime/cds/appcds/TestSerialGCWithCDS.java fails on Windows

Reviewed-by: iklam, hseigel

! test/hotspot/jtreg/runtime/cds/appcds/TestSerialGCWithCDS.java

Changeset: 03a8d342
Author:    Sean Coffey <coffeys at openjdk.org>
Date:      2021-10-07 15:12:13 +0000
URL:       https://git.openjdk.java.net/loom/commit/03a8d342b86e720d3cba08d540182b4ab161fba3

8273826: Correct Manifest file name and NPE checks

Reviewed-by: weijun, hchao, mullan

! src/java.base/share/classes/java/util/jar/JarFile.java
! src/java.base/share/classes/java/util/jar/JarInputStream.java
! src/java.base/share/classes/java/util/jar/JarVerifier.java
! src/java.base/share/classes/sun/security/util/ManifestEntryVerifier.java
+ test/jdk/sun/security/tools/jarsigner/warnings/LowerCaseManifest.java

Changeset: 4ab274ac
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2021-10-07 15:24:00 +0000
URL:       https://git.openjdk.java.net/loom/commit/4ab274ac1a241b2d63f46084ec23aa7cff4bc28e

8274858: Remove unused dictionary_classes_do functions

Reviewed-by: dholmes, hseigel

! src/hotspot/share/classfile/classLoaderDataGraph.cpp
! src/hotspot/share/classfile/classLoaderDataGraph.hpp
! src/hotspot/share/memory/universe.cpp

Changeset: 8ca08461
Author:    Naoto Sato <naoto at openjdk.org>
Date:      2021-10-07 15:32:11 +0000
URL:       https://git.openjdk.java.net/loom/commit/8ca084617f331b6af934179f3f776c8158da5bba

8274407: (tz) Update Timezone Data to 2021c
8274467: TestZoneInfo310.java fails with tzdata2021b
8274468: TimeZoneTest.java fails with tzdata2021b

Reviewed-by: rriggs, iris, coffeys

! make/data/tzdata/VERSION
! make/data/tzdata/africa
! make/data/tzdata/antarctica
! make/data/tzdata/asia
! make/data/tzdata/australasia
! make/data/tzdata/backward
! make/data/tzdata/europe
! make/data/tzdata/leapseconds
! make/data/tzdata/northamerica
! make/data/tzdata/southamerica
! make/data/tzdata/zone.tab
! src/java.base/share/classes/sun/util/calendar/ZoneInfoFile.java
! test/jdk/java/util/TimeZone/TimeZoneTest.java

Changeset: 7de2cf85
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Daniel Fuchs <dfuchs at openjdk.org>
Date:      2021-10-07 16:55:45 +0000
URL:       https://git.openjdk.java.net/loom/commit/7de2cf852d75ea6eb039e69067d4e32421283de5

8273910: Redundant condition and assignment in java.net.URI

Reviewed-by: dfuchs

! src/java.base/share/classes/java/net/URI.java

Changeset: 920e7070
Author:    Daniel D. Daugherty <dcubed at openjdk.org>
Date:      2021-10-07 17:14:26 +0000
URL:       https://git.openjdk.java.net/loom/commit/920e70701da9699765c993e11feba3cc0fd0362c

8274920: ProblemList 2 VectorAPI tests failing due to "assert(!vbox->is_Phi()) failed"

Reviewed-by: kvn

! test/hotspot/jtreg/ProblemList-Xcomp.txt

Changeset: 8de77634
Author:    Yumin Qi <minqi at openjdk.org>
Date:      2021-10-07 21:33:32 +0000
URL:       https://git.openjdk.java.net/loom/commit/8de77634c414cc348a6eb7b28fd6339befdb12d7

8273152: Refactor CDS FileMapHeader loading code

Reviewed-by: ccheung, iklam

! src/hotspot/share/cds/archiveBuilder.cpp
! src/hotspot/share/cds/cdsConstants.cpp
! src/hotspot/share/cds/dynamicArchive.cpp
! src/hotspot/share/cds/filemap.cpp
! src/hotspot/share/cds/filemap.hpp
! src/hotspot/share/include/cds.h
! src/hotspot/share/runtime/arguments.cpp
! src/jdk.hotspot.agent/share/native/libsaproc/ps_core_common.c
! test/hotspot/jtreg/runtime/cds/appcds/SharedArchiveConsistency.java
! test/hotspot/jtreg/runtime/cds/appcds/dynamicArchive/ArchiveConsistency.java
! test/lib/jdk/test/lib/cds/CDSArchiveUtils.java

Changeset: 97ea9dd2
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2021-10-08 06:40:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/97ea9dd2f24f9f1fb9b9345a4202a825ee28e014

8274840: Update OS detection code to recognize Windows 11

Co-authored-by: Arno Zeller <arno.zeller at sap.com>
Reviewed-by: clanger, dholmes

! src/hotspot/os/windows/os_windows.cpp
! src/java.base/windows/native/libjava/java_props_md.c

Changeset: b60837a7
Author:    Doug Simon <dnsimon at openjdk.org>
Date:      2021-10-08 08:06:53 +0000
URL:       https://git.openjdk.java.net/loom/commit/b60837a7d5d6f920d2fb968369564df155dc1018

8272586: emit abstract machine code in hs-err logs

Reviewed-by: kvn, dholmes

! src/hotspot/share/code/nmethod.cpp
! src/hotspot/share/compiler/compileTask.cpp
! src/hotspot/share/compiler/compileTask.hpp
! src/hotspot/share/compiler/disassembler.cpp
! src/hotspot/share/utilities/vmError.cpp
! src/hotspot/share/utilities/vmError.hpp
+ test/hotspot/jtreg/runtime/ErrorHandling/MachCodeFramesInErrorFile.java

Changeset: 6364719c
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2021-10-08 12:23:19 +0000
URL:       https://git.openjdk.java.net/loom/commit/6364719cd1c57220769ea580d958da8dc2fdf7f9

8274004: Change 'nonleaf' rank name
8273956: Add checking for rank values

Reviewed-by: dholmes, pchilanomate

! src/hotspot/os/aix/osThread_aix.cpp
! src/hotspot/os/bsd/osThread_bsd.cpp
! src/hotspot/os/linux/osThread_linux.cpp
! src/hotspot/share/classfile/classLoaderData.cpp
! src/hotspot/share/compiler/compileTask.hpp
! src/hotspot/share/gc/g1/g1RegionToSpaceMapper.cpp
! src/hotspot/share/gc/g1/g1ServiceThread.cpp
! src/hotspot/share/gc/g1/heapRegion.cpp
! src/hotspot/share/gc/g1/heapRegionRemSet.cpp
! src/hotspot/share/gc/parallel/psCompactionManager.cpp
! src/hotspot/share/gc/shared/gcLogPrecious.cpp
! src/hotspot/share/gc/shared/oopStorage.cpp
! src/hotspot/share/gc/shared/space.cpp
! src/hotspot/share/gc/shared/taskTerminator.cpp
! src/hotspot/share/gc/shared/workgroup.cpp
! src/hotspot/share/gc/shenandoah/shenandoahControlThread.cpp
! src/hotspot/share/gc/shenandoah/shenandoahPacer.hpp
! src/hotspot/share/gc/z/zMessagePort.inline.hpp
! src/hotspot/share/gc/z/zMetronome.cpp
! src/hotspot/share/memory/heapInspection.hpp
! src/hotspot/share/memory/metaspace/testHelpers.cpp
! src/hotspot/share/oops/methodData.cpp
! src/hotspot/share/prims/jvmtiTagMap.cpp
! src/hotspot/share/runtime/handshake.cpp
! src/hotspot/share/runtime/mutex.cpp
! src/hotspot/share/runtime/mutex.hpp
! src/hotspot/share/runtime/mutexLocker.cpp
! src/hotspot/share/runtime/stackWatermark.cpp
! src/hotspot/share/runtime/vmOperations.cpp
! src/hotspot/share/runtime/vmThread.cpp
! src/hotspot/share/services/heapDumper.cpp
! src/hotspot/share/services/heapDumperCompression.cpp
! src/hotspot/share/services/memoryManager.cpp
! src/hotspot/share/utilities/concurrentHashTable.inline.hpp
! src/hotspot/share/utilities/events.hpp
! test/hotspot/gtest/metaspace/test_is_metaspace_obj.cpp
! test/hotspot/gtest/metaspace/test_metaspacearena.cpp
! test/hotspot/gtest/metaspace/test_metaspacearena_stress.cpp
! test/hotspot/gtest/runtime/test_mutex.cpp
- test/hotspot/gtest/runtime/test_safepoint_locks.cpp
! test/hotspot/gtest/utilities/test_filterQueue.cpp

Changeset: 2aacd422
Author:    Roland Westrelin <roland at openjdk.org>
Date:      2021-10-08 14:48:35 +0000
URL:       https://git.openjdk.java.net/loom/commit/2aacd4220a01b467de671212c7a74e6c81a2ad3c

8274145: C2: condition incorrectly made redundant with dominating main loop exit condition

Reviewed-by: kvn, neliasso

! src/hotspot/share/opto/loopnode.hpp
! src/hotspot/share/opto/loopopts.cpp
+ test/hotspot/jtreg/compiler/loopopts/TestIfReplacedByMainLoopExit.java

Changeset: 36b89a18
Author:    Christian Hagedorn <chagedorn at openjdk.org>
Date:      2021-10-08 14:51:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/36b89a18931d42b8002a843ec8218b5c1ba54374

8274785: ciReplay: Potential crash due to uninitialized Compile::_ilt variable

Reviewed-by: neliasso, kvn

! src/hotspot/share/opto/compile.cpp

Changeset: ccbce107
Author:    Sergey Tsypanov <sergei.tsypanov at yandex.ru>
Committer: Jayathirth D V <jdv at openjdk.org>
Date:      2021-10-08 15:58:36 +0000
URL:       https://git.openjdk.java.net/loom/commit/ccbce107f299c3b1c444e819c1fda7ae3c4866b5

8272756: Remove unnecessary explicit initialization of volatile variables in java.desktop

Reviewed-by: jdv, aivanov

! src/java.desktop/macosx/classes/sun/lwawt/LWLightweightFramePeer.java
! src/java.desktop/macosx/classes/sun/lwawt/LWWindowPeer.java
! src/java.desktop/macosx/classes/sun/lwawt/macosx/CCheckboxMenuItem.java
! src/java.desktop/macosx/classes/sun/lwawt/macosx/CPlatformEmbeddedFrame.java
! src/java.desktop/macosx/classes/sun/lwawt/macosx/CWarningWindow.java
! src/java.desktop/share/classes/com/sun/imageio/plugins/tiff/TIFFIFD.java
! src/java.desktop/share/classes/com/sun/media/sound/DirectAudioDevice.java
! src/java.desktop/share/classes/com/sun/media/sound/SoftAudioPusher.java
! src/java.desktop/share/classes/com/sun/media/sound/SoftSynthesizer.java
! src/java.desktop/share/classes/java/awt/Component.java
! src/java.desktop/share/classes/java/awt/Container.java
! src/java.desktop/share/classes/java/awt/Dialog.java
! src/java.desktop/share/classes/java/awt/Window.java
! src/java.desktop/share/classes/java/awt/event/InvocationEvent.java
! src/java.desktop/share/classes/java/awt/font/NumericShaper.java
! src/java.desktop/share/classes/javax/swing/JComponent.java
! src/java.desktop/share/classes/sun/awt/AppContext.java
! src/java.desktop/share/classes/sun/awt/datatransfer/SunClipboard.java
! src/java.desktop/share/classes/sun/awt/dnd/SunDragSourceContextPeer.java
! src/java.desktop/share/classes/sun/java2d/Disposer.java
! src/java.desktop/share/classes/sun/java2d/marlin/RendererStats.java
! src/java.desktop/unix/classes/sun/awt/X11/GtkFileDialogPeer.java
! src/java.desktop/unix/classes/sun/awt/X11/ListHelper.java
! src/java.desktop/unix/classes/sun/awt/X11/XInputMethod.java
! src/java.desktop/unix/classes/sun/awt/X11/XLightweightFramePeer.java
! src/java.desktop/unix/classes/sun/awt/X11/XWarningWindow.java
! src/java.desktop/windows/classes/sun/awt/windows/ThemeReader.java
! src/java.desktop/windows/classes/sun/awt/windows/WObjectPeer.java

Changeset: ec199072
Author:    Naoto Sato <naoto at openjdk.org>
Date:      2021-10-08 16:11:22 +0000
URL:       https://git.openjdk.java.net/loom/commit/ec199072c5867624d66840238cc8828e16ae8da7

8274864: Remove Amman/Cairo hacks in ZoneInfoFile

Reviewed-by: iris, joehw

! src/java.base/share/classes/sun/util/calendar/ZoneInfoFile.java

Changeset: 239a35aa
Author:    Brian Burkhalter <bpb at openjdk.org>
Date:      2021-10-08 16:43:16 +0000
URL:       https://git.openjdk.java.net/loom/commit/239a35aa9166d0cb0b20850e1b52ad23b653d8d0

8233749: Files.exists javadoc doesn't mention eating IOException

Reviewed-by: lancea, alanb

! src/java.base/share/classes/java/nio/file/Files.java

Changeset: 3cb9724e
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2021-10-08 21:10:42 +0000
URL:       https://git.openjdk.java.net/loom/commit/3cb9724ed94a7267853c5cddb18b4ae868ecf2e9

8274934: Attempting to acquire lock JNICritical_lock/41 out of order with lock MultiArray_lock/41

Reviewed-by: dcubed, iklam

! src/hotspot/share/runtime/mutexLocker.cpp

Changeset: 9c431dd1
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Pavel Rappo <prappo at openjdk.org>
Date:      2021-10-08 23:08:05 +0000
URL:       https://git.openjdk.java.net/loom/commit/9c431dd168c8a752d4aa1bde2268db0425d76990

8274900: Too weak variable type leads to unnecessary cast in jdk.javadoc

Reviewed-by: prappo

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/SourceToHTMLConverter.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/builders/SerializedFormBuilder.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/util/SummaryAPIListBuilder.java

Changeset: f640c7aa
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-09 00:46:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/f640c7aaa852b6c0e9144654b7222a6777201370

8274806: Simplify equals() call on nullable variable and a constant in java.desktop

Reviewed-by: serb, pbansal

! src/java.desktop/macosx/classes/sun/lwawt/macosx/CMenuItem.java
! src/java.desktop/share/classes/java/awt/Window.java
! src/java.desktop/share/classes/javax/swing/DefaultDesktopManager.java
! src/java.desktop/share/classes/javax/swing/JLayeredPane.java
! src/java.desktop/share/classes/javax/swing/filechooser/FileSystemView.java
! src/java.desktop/share/classes/javax/swing/text/html/HTMLEditorKit.java
! src/java.desktop/share/classes/sun/java2d/SurfaceDataProxy.java
! src/java.desktop/share/classes/sun/print/RasterPrinterJob.java
! src/java.desktop/unix/classes/sun/awt/X11/XTaskbarPeer.java
! src/java.desktop/unix/classes/sun/print/UnixPrintJob.java
! src/java.desktop/windows/classes/sun/awt/windows/WDesktopProperties.java

Changeset: aac6c4ea
Author:    Pankaj Bansal <pbansal at openjdk.org>
Date:      2021-10-09 03:52:53 +0000
URL:       https://git.openjdk.java.net/loom/commit/aac6c4ea707fa592b2bcd7586c1fe61a19e3725e

8272229: BasicSplitPaneDivider:oneTouchExpandableChanged() returns leftButton and rightButton as null with GTKLookAndFeel

Reviewed-by: serb, jdv, kizune

! src/java.desktop/share/classes/javax/swing/plaf/basic/BasicSplitPaneDivider.java

Changeset: 6d1d4d52
Author:    Wang Huang <whuang at openjdk.org>
Committer: Hamlin Li <mli at openjdk.org>
Date:      2021-10-09 08:19:17 +0000
URL:       https://git.openjdk.java.net/loom/commit/6d1d4d52928ed38bbc73ddcbede5389995a8e65f

8268231: Aarch64: Use ldp in intrinsics for String.compareTo

Co-authored-by: Wang Huang <whuang at openjdk.org>
Co-authored-by: Sun Jianye <sunjianye at huawei.com>
Co-authored-by: Wu Yan <wuyan at openjdk.org>
Reviewed-by: ngasson, aph

! src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp

Changeset: 2c83559e
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-10 08:41:52 +0000
URL:       https://git.openjdk.java.net/loom/commit/2c83559eda410d268c6d8a56d7fd1c34f817cb83

8274882: Cleanup redundant boxing in java.desktop

Reviewed-by: serb, pbansal

! src/java.desktop/share/classes/com/sun/java/swing/plaf/gtk/Metacity.java
! src/java.desktop/share/classes/javax/swing/SwingUtilities.java
! src/java.desktop/share/classes/javax/swing/plaf/metal/MetalLookAndFeel.java
! src/java.desktop/share/classes/sun/awt/SunToolkit.java
! src/java.desktop/share/classes/sun/awt/image/VSyncedBSManager.java
! src/java.desktop/share/classes/sun/java2d/marlin/MarlinProperties.java
! src/java.desktop/unix/classes/sun/awt/X11/MotifColorUtilities.java
! src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsLookAndFeel.java
! src/java.desktop/windows/classes/sun/awt/windows/TranslucentWindowPainter.java

Changeset: 296f8537
Author:    lawrence.andrews <lawrence.andrews at oracle.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-10 08:46:04 +0000
URL:       https://git.openjdk.java.net/loom/commit/296f8537f71b84f194cf2718ac9b85ba6843cfa3

8274029: Remove jtreg tag manual=yesno for java/awt/print/Dialog/DialogOrient.java

Reviewed-by: serb

! test/jdk/java/awt/print/Dialog/DialogOrient.java

Changeset: 2ff3977a
Author:    Jie Fu <jiefu at openjdk.org>
Date:      2021-10-10 14:00:58 +0000
URL:       https://git.openjdk.java.net/loom/commit/2ff3977a66c8d8b521cd0ad266ba954682a268ce

8275004: CDS build failure with gcc11

Reviewed-by: shade

! src/hotspot/share/cds/cdsConstants.hpp

Changeset: 5ecc99bb
Author:    Lin Zang <lzang at openjdk.org>
Date:      2021-10-11 01:56:34 +0000
URL:       https://git.openjdk.java.net/loom/commit/5ecc99bbf55e631b5bfa07e2c36b38e820682363

8274620: resourcehogs/serviceability/sa/TestHeapDumpForLargeArray.java is timing out

Reviewed-by: cjplummer, dholmes

! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/utilities/HeapHprofBinWriter.java
! test/hotspot/jtreg/ProblemList.txt

Changeset: a05873a2
Author:    Ao Qi <aoqi at openjdk.org>
Committer: Jie Fu <jiefu at openjdk.org>
Date:      2021-10-11 02:17:56 +0000
URL:       https://git.openjdk.java.net/loom/commit/a05873a225c40d12e60870794b9c993d1ea89cfe

8274952: jdk/jfr/api/consumer/TestRecordedFrameType.java failed when c1 disabled

Reviewed-by: egahlin, jiefu

! test/jdk/jdk/jfr/api/consumer/TestRecordedFrameType.java

Changeset: c032186b
Author:    Fei Gao <Fei.Gao at arm.com>
Committer: Pengfei Li <pli at openjdk.org>
Date:      2021-10-11 06:59:37 +0000
URL:       https://git.openjdk.java.net/loom/commit/c032186b421c64b44397cb7aa101b40e5f93dfff

8272968: AArch64: Remove redundant matching rules for commutative ops

Reviewed-by: ngasson

! src/hotspot/cpu/aarch64/aarch64.ad

Changeset: 49f8ce6e
Author:    Martin Doerr <mdoerr at openjdk.org>
Date:      2021-10-11 10:31:54 +0000
URL:       https://git.openjdk.java.net/loom/commit/49f8ce6e9c797cd11ea586e3cf87398888bc8cf1

8274773: [TESTBUG] UnsafeIntrinsicsTest intermittently fails on weak memory model platform

Reviewed-by: eosterlund, goetz

! test/hotspot/jtreg/compiler/gcbarriers/UnsafeIntrinsicsTest.java

Changeset: 3edee1e1
Author:    Roman Kennke <rkennke at openjdk.org>
Date:      2021-10-11 10:37:54 +0000
URL:       https://git.openjdk.java.net/loom/commit/3edee1e1feed564397ac47a32c0394d7798bac17

8272723: Don't use Access API to access primitive fields

Reviewed-by: stefank, eosterlund

! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/javaClasses.inline.hpp
! src/hotspot/share/jvmci/jvmciJavaClasses.cpp
! src/hotspot/share/oops/instanceKlass.inline.hpp
! src/hotspot/share/oops/oop.cpp
! src/hotspot/share/oops/oop.hpp
! src/hotspot/share/oops/oop.inline.hpp
! src/hotspot/share/oops/typeArrayOop.inline.hpp
! src/hotspot/share/prims/unsafe.cpp

Changeset: c55dd365
Author:    Jie Fu <jiefu at openjdk.org>
Date:      2021-10-11 10:51:39 +0000
URL:       https://git.openjdk.java.net/loom/commit/c55dd365e3463670697b09de0ff70877203e5a69

8275008: gtest build failure due to stringop-overflow warning with gcc11

Reviewed-by: dholmes, ihse

! make/hotspot/lib/CompileGtest.gmk

Changeset: aaf2401b
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2021-10-11 11:46:46 +0000
URL:       https://git.openjdk.java.net/loom/commit/aaf2401bc7d766dee5ffc623db86c4723c7e3760

8274927: Remove unnecessary G1ArchiveAllocator code

Reviewed-by: kbarrett, ayang

! src/hotspot/share/gc/g1/g1Allocator.cpp
! src/hotspot/share/gc/g1/g1Allocator.hpp
! src/hotspot/share/gc/g1/g1CollectedHeap.cpp

Changeset: b7af8905
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2021-10-11 11:48:50 +0000
URL:       https://git.openjdk.java.net/loom/commit/b7af890574b3c13122fe7de987a8c9458c05f625

8274430: Remove some debug error printing code added in JDK-8017163

Reviewed-by: sjohanss, ayang

! src/hotspot/share/gc/g1/heapRegion.cpp

Changeset: 110e38de
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2021-10-11 12:11:11 +0000
URL:       https://git.openjdk.java.net/loom/commit/110e38ded8e09361f24c582c770d35f5cfdabf82

8274753: ZGC: SEGV in MetaspaceShared::link_shared_classes
8274935: dumptime_table has stale entry

Reviewed-by: eosterlund, iklam

! src/hotspot/share/cds/metaspaceShared.cpp
! src/hotspot/share/classfile/classLoaderData.cpp
! test/hotspot/jtreg/runtime/cds/appcds/loaderConstraints/DynamicLoaderConstraintsTest.java

Changeset: b870468b
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2021-10-11 12:38:08 +0000
URL:       https://git.openjdk.java.net/loom/commit/b870468bdc99938fbb19a41b0ede0a3e3769ace2

8274347: Passing a *nested* switch expression as a parameter causes an NPE during compile

Reviewed-by: vromero

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java
! test/langtools/tools/javac/api/TestGetScopeResult.java
! test/langtools/tools/javac/switchexpr/ExpressionSwitchInfer.java

Changeset: 0d80f6cf
Author:    Patricio Chilano Mateo <pchilanomate at openjdk.org>
Date:      2021-10-11 13:34:42 +0000
URL:       https://git.openjdk.java.net/loom/commit/0d80f6cf82ddab85f2461c7cc663a93bb222e988

8274379: Allow process of unsafe access errors in check_special_condition_for_native_trans

Reviewed-by: rehn, dholmes

! src/hotspot/share/prims/jvm.cpp
! src/hotspot/share/prims/jvmtiEnv.cpp
! src/hotspot/share/runtime/safepoint.hpp
! src/hotspot/share/runtime/thread.cpp
! src/hotspot/share/runtime/thread.hpp
! src/hotspot/share/runtime/thread.inline.hpp
! src/hotspot/share/runtime/vmStructs.cpp

Changeset: 3f073377
Author:    Zhengyu Gu <zgu at openjdk.org>
Date:      2021-10-11 15:10:57 +0000
URL:       https://git.openjdk.java.net/loom/commit/3f07337722a0c8c6b452a44745598268d67c0864

8273614: Shenandoah: intermittent timeout with ConcurrentGCBreakpoint tests

Reviewed-by: shade

! src/hotspot/share/gc/shenandoah/shenandoahConcurrentGC.cpp

Changeset: 3f01d03a
Author:    Lin Zang <lzang at openjdk.org>
Date:      2021-10-11 15:27:28 +0000
URL:       https://git.openjdk.java.net/loom/commit/3f01d03a10cb3f647735ed4bbea1768ff18bf8f2

8275021: Test serviceability/sa/TestJmapCore.java fails with: java.io.IOException: Stack frame 0x4 not found

Reviewed-by: dholmes, dcubed

! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/utilities/HeapHprofBinWriter.java

Changeset: 83c37719
Author:    Thomas Stuefe <stuefe at openjdk.org>
Date:      2021-10-11 15:48:10 +0000
URL:       https://git.openjdk.java.net/loom/commit/83c37719290039672cf261701028c8eb044a2e77

8273881: Metaspace: test repeated deallocations

Reviewed-by: dholmes, shade

! test/hotspot/gtest/metaspace/test_metaspacearena.cpp

Changeset: 75f5145e
Author:    Zhengyu Gu <zgu at openjdk.org>
Date:      2021-10-11 16:58:53 +0000
URL:       https://git.openjdk.java.net/loom/commit/75f5145e21a1320c1a08080af861497ce7c3f266

8274925: Shenandoah: shenandoah/TestAllocHumongousFragment.java test failed on lock rank check

Reviewed-by: shade

! src/hotspot/share/gc/shenandoah/shenandoahControlThread.cpp

Changeset: 829dea45
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Pankaj Bansal <pbansal at openjdk.org>
Date:      2021-10-11 19:19:39 +0000
URL:       https://git.openjdk.java.net/loom/commit/829dea45c9ab90518f03a66aad7e681cd4fda8b3

8274945: Cleanup unnecessary calls to Throwable.initCause() in java.desktop

Reviewed-by: jdv, serb, pbansal

! src/java.desktop/share/classes/com/sun/imageio/plugins/jpeg/MarkerSegment.java
! src/java.desktop/share/classes/javax/imageio/metadata/IIOMetadata.java
! src/java.desktop/share/classes/javax/imageio/spi/ImageReaderWriterSpi.java
! src/java.desktop/share/classes/sun/awt/datatransfer/TransferableProxy.java

Changeset: dd93c6e2
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-12 00:14:00 +0000
URL:       https://git.openjdk.java.net/loom/commit/dd93c6e27b66acebb221583fd28d03c65bfc1f24

8272167: AbsPathsInImage.java should skip *.dSYM directories

Reviewed-by: ihse, erikj

! test/jdk/build/AbsPathsInImage.java

Changeset: 1e306959
Author:    Hamlin Li <mli at openjdk.org>
Date:      2021-10-12 01:25:00 +0000
URL:       https://git.openjdk.java.net/loom/commit/1e3069593e6f56714e1ee557b70930c2749d820c

8274466: G1: use field directly rather than method in G1CollectorState::in_mixed_phase

Reviewed-by: ayang, sjohanss

! src/hotspot/share/gc/g1/g1CollectorState.hpp

Changeset: ef0922e8
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-10-12 05:56:15 +0000
URL:       https://git.openjdk.java.net/loom/commit/ef0922e88528bdf4fe75537ddf4e82123e3f58b3

8274560: JFR: Add test for OldObjectSample event when using Shenandoah

Reviewed-by: mgronlun

! test/jdk/jdk/jfr/event/oldobject/TestObjectDescription.java
+ test/jdk/jdk/jfr/event/oldobject/TestShenandoah.java

Changeset: a5f09d10
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-10-12 06:22:13 +0000
URL:       https://git.openjdk.java.net/loom/commit/a5f09d1088d9dd610139370739e9fbd6e34416cb

8275031: runtime/ErrorHandling/MachCodeFramesInErrorFile.java fails when hsdis is present

Reviewed-by: dholmes, dnsimon

! src/hotspot/share/code/nmethod.cpp
! test/hotspot/jtreg/runtime/ErrorHandling/MachCodeFramesInErrorFile.java

Changeset: cfe7471f
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-10-12 07:24:15 +0000
URL:       https://git.openjdk.java.net/loom/commit/cfe7471f1769eca2a4e623f5ba9cddceb005f0bf

8177814: jdk/editpad is not in jdk TEST.groups

Reviewed-by: serb

! test/jdk/TEST.groups

Changeset: 7d2633f7
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Pavel Rappo <prappo at openjdk.org>
Date:      2021-10-12 09:37:54 +0000
URL:       https://git.openjdk.java.net/loom/commit/7d2633f795c27edc2dfbbd7a9d9e44bdb23ec6a1

8275002: Remove unused AbstractStringBuilder.MAX_ARRAY_SIZE

Reviewed-by: prappo, jlaskey, martin

! src/java.base/share/classes/java/lang/AbstractStringBuilder.java

Changeset: 8de26361
Author:    Kim Barrett <kbarrett at openjdk.org>
Date:      2021-10-12 09:40:35 +0000
URL:       https://git.openjdk.java.net/loom/commit/8de26361f7d789c7b317536198c891756038a8ea

8274615: Support relaxed atomic add for linux-aarch64

Reviewed-by: aph, dholmes

! src/hotspot/cpu/aarch64/atomic_aarch64.hpp
! src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp
! src/hotspot/os_cpu/linux_aarch64/atomic_linux_aarch64.S
! src/hotspot/os_cpu/linux_aarch64/atomic_linux_aarch64.hpp

Changeset: 33050f80
Author:    Doug Simon <dnsimon at openjdk.org>
Date:      2021-10-12 09:49:50 +0000
URL:       https://git.openjdk.java.net/loom/commit/33050f8013366f5e3a01ab1a75ba3fee9cc73089

8274986: max code printed in hs-err logs should be configurable

Reviewed-by: never, dholmes

! src/hotspot/share/code/codeBlob.cpp
! src/hotspot/share/runtime/flags/jvmFlagLimit.cpp
! src/hotspot/share/runtime/globals.hpp
! src/hotspot/share/utilities/vmError.cpp
! src/hotspot/share/utilities/vmError.hpp
! test/hotspot/jtreg/runtime/ErrorHandling/MachCodeFramesInErrorFile.java

Changeset: d04d4ee2
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Daniel Fuchs <dfuchs at openjdk.org>
Date:      2021-10-12 11:14:31 +0000
URL:       https://git.openjdk.java.net/loom/commit/d04d4ee2c193baf4339ee3025e3fbcd31d62f484

8274894: Use Optional.empty() instead of ofNullable(null) in HttpResponse.BodySubscribers.discarding

Reviewed-by: dfuchs

! src/java.net.http/share/classes/java/net/http/HttpResponse.java

Changeset: b460d6dd
Author:    kabutz <heinz at javaspecialists.eu>
Committer: Markus Gr?nlund <mgronlun at openjdk.org>
Date:      2021-10-12 11:38:21 +0000
URL:       https://git.openjdk.java.net/loom/commit/b460d6ddafcd1be76bcf407254f843df6bbfb70b

8275091: /src/jdk.management.jfr/share/classes/module-info.java has non-canonical order

Reviewed-by: mgronlun

! src/jdk.management.jfr/share/classes/module-info.java

Changeset: 1ab64143
Author:    Zhengyu Gu <zgu at openjdk.org>
Date:      2021-10-12 11:58:35 +0000
URL:       https://git.openjdk.java.net/loom/commit/1ab64143c06e33e23172dd77c39e434443347364

8275051: Shenandoah: Correct ordering of requested gc cause and gc request flag

Reviewed-by: shade

! src/hotspot/share/gc/shenandoah/shenandoahControlThread.cpp

Changeset: e16b93ad
Author:    Martin Doerr <mdoerr at openjdk.org>
Date:      2021-10-12 12:18:49 +0000
URL:       https://git.openjdk.java.net/loom/commit/e16b93ad52c96fddd9097c2cb0fa78ae781c547b

8274770: [PPC64] resolve_jobject needs a generic implementation to support load barriers

Reviewed-by: goetz, nradomski

! src/hotspot/cpu/ppc/gc/shared/barrierSetAssembler_ppc.cpp
! src/hotspot/cpu/ppc/gc/shared/modRefBarrierSetAssembler_ppc.cpp
! src/hotspot/cpu/ppc/gc/shared/modRefBarrierSetAssembler_ppc.hpp

Changeset: e393c5ea
Author:    Roman Kennke <rkennke at openjdk.org>
Date:      2021-10-12 13:16:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/e393c5ea9d9a254cdacbd311498c55c560e8ab25

8275074: Cleanup unused code in JFR LeakProfiler

Reviewed-by: mgronlun

! src/hotspot/share/jfr/leakprofiler/chains/edgeUtils.cpp
! src/hotspot/share/jfr/leakprofiler/chains/edgeUtils.hpp
- src/hotspot/share/jfr/leakprofiler/utilities/saveRestore.cpp
- src/hotspot/share/jfr/leakprofiler/utilities/saveRestore.hpp

Changeset: f6234606
Author:    Christian Hagedorn <chagedorn at openjdk.org>
Date:      2021-10-12 13:21:35 +0000
URL:       https://git.openjdk.java.net/loom/commit/f62346066869b681d1cc9f63775393b11a48722a

8274911: testlibrary_tests/ir_framework/tests/TestIRMatching.java fails with "java.lang.RuntimeException: Should have thrown exception"

Reviewed-by: kvn, thartmann

! test/hotspot/jtreg/compiler/lib/ir_framework/driver/IRMatcher.java
! test/hotspot/jtreg/testlibrary_tests/ir_framework/tests/TestIRMatching.java
! test/hotspot/jtreg/testlibrary_tests/ir_framework/tests/TestRunTests.java
! test/hotspot/jtreg/testlibrary_tests/ir_framework/tests/Utils.java

Changeset: 07b1f1c2
Author:    Brian Burkhalter <bpb at openjdk.org>
Date:      2021-10-12 15:25:53 +0000
URL:       https://git.openjdk.java.net/loom/commit/07b1f1c282ee0a7df6a6b0f240962a032ea3a413

8274548: (fc) FileChannel gathering write fails with IOException "Invalid argument" on macOS 11.6

Reviewed-by: alanb

! src/java.base/share/classes/sun/nio/ch/IOUtil.java
! src/java.base/unix/native/libnio/ch/IOUtil.c
! src/java.base/windows/native/libnio/ch/IOUtil.c
+ test/jdk/java/nio/channels/FileChannel/LargeGatheringWrite.java

Changeset: 89999f70
Author:    Dmitry Batrak <dbatrak at openjdk.org>
Date:      2021-10-12 15:36:41 +0000
URL:       https://git.openjdk.java.net/loom/commit/89999f70e06b41704c7c5b0f9a19582f90806a10

8275131: Exceptions after a touchpad gesture on macOS

Reviewed-by: dmarkov, prr

! src/java.desktop/macosx/native/libawt_lwawt/awt/AWTWindow.m

Changeset: b8bd259b
Author:    Evgeny Astigeevich <eastig at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2021-10-12 16:56:06 +0000
URL:       https://git.openjdk.java.net/loom/commit/b8bd259bb83096f8727222a4e5cd84e80e096275

8271737: Only normalize the cached user.dir property once

Reviewed-by: phh

! src/java.base/windows/classes/java/io/WinNTFileSystem.java

Changeset: 8657f776
Author:    Daniel D. Daugherty <dcubed at openjdk.org>
Date:      2021-10-12 17:05:47 +0000
URL:       https://git.openjdk.java.net/loom/commit/8657f77608f37d7ff5254032858f2f16c7c204d5

8271514: support JFR use of new ThreadsList::Iterator

Co-authored-by: Kim Barrett <kbarrett at openjdk.org>
Reviewed-by: sspitsyn, mgronlun

! src/hotspot/share/jfr/utilities/jfrThreadIterator.cpp
! src/hotspot/share/jfr/utilities/jfrThreadIterator.hpp

Changeset: 124f8237
Author:    Sergey Tsypanov <sergei.tsypanov at yandex.ru>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-12 19:13:17 +0000
URL:       https://git.openjdk.java.net/loom/commit/124f82377ba93359bc59118ee315ba194080fa92

8268764: Use Long.hashCode() instead of int-cast where applicable

Reviewed-by: kevinw, prr, kizune, serb

! src/java.desktop/share/classes/com/sun/media/sound/DLSSoundbank.java
! src/java.desktop/share/classes/com/sun/media/sound/WaveExtensibleFileReader.java
! src/java.rmi/share/classes/java/rmi/server/ObjID.java
! src/jdk.internal.vm.ci/share/classes/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/FieldImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/MethodImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/ObjectReferenceImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/ReferenceTypeImpl.java
! src/jdk.security.auth/share/classes/com/sun/security/auth/NTNumericCredential.java

Changeset: 03c2b73e
Author:    Magnus Ihse Bursie <ihse at openjdk.org>
Date:      2021-10-12 23:28:53 +0000
URL:       https://git.openjdk.java.net/loom/commit/03c2b73e2112cdbcbd1230009de0a15a9bd31815

8275128: Build hsdis using normal build system

Reviewed-by: erikj

+ make/Hsdis.gmk
! make/Main.gmk
! make/autoconf/configure.ac
! make/autoconf/help.m4
! make/autoconf/jdk-options.m4
! make/autoconf/spec.gmk.in
! src/utils/hsdis/README
- src/utils/hsdis/hsdis-demo.c

Changeset: b1b83500
Author:    Daniel D. Daugherty <dcubed at openjdk.org>
Date:      2021-10-12 23:43:40 +0000
URL:       https://git.openjdk.java.net/loom/commit/b1b83500a9c3a74bf39894e49eefd031d208b9b9

8275171: ProblemList compiler/codegen/aes/TestAESMain.java on linux-x64 and windows-x64 in -Xcomp mode

Reviewed-by: iignatyev

! test/hotspot/jtreg/ProblemList-Xcomp.txt

Changeset: ab34cced
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2021-10-13 05:26:33 +0000
URL:       https://git.openjdk.java.net/loom/commit/ab34cced3beae765fe9d6b6acfef7e6a7f3082cd

8275186: Suppress warnings on non-serializable array component types in xml

Reviewed-by: joehw

! src/java.xml/share/classes/com/sun/org/apache/bcel/internal/generic/TargetLostException.java
! src/java.xml/share/classes/com/sun/org/apache/xerces/internal/impl/dv/DatatypeException.java
! src/java.xml/share/classes/com/sun/org/apache/xerces/internal/impl/io/MalformedByteSequenceException.java
! src/java.xml/share/classes/com/sun/org/apache/xerces/internal/impl/xs/XMLSchemaException.java
! src/java.xml/share/classes/com/sun/org/apache/xerces/internal/impl/xs/traversers/XSDComplexTypeTraverser.java
! src/java.xml/share/classes/com/sun/org/apache/xpath/internal/axes/UnionPathIterator.java

Changeset: cf828673
Author:    Martin Doerr <mdoerr at openjdk.org>
Date:      2021-10-13 07:12:52 +0000
URL:       https://git.openjdk.java.net/loom/commit/cf828673a9b76fd3f26db9a3f714166861a65c9e

8275049: [ZGC] missing null check in ZNMethod::log_register

Reviewed-by: nradomski, eosterlund, pliden

! src/hotspot/share/gc/z/zNMethod.cpp

Changeset: 337b73a4
Author:    Niklas Radomski <nradomski at openjdk.org>
Committer: Martin Doerr <mdoerr at openjdk.org>
Date:      2021-10-13 07:36:52 +0000
URL:       https://git.openjdk.java.net/loom/commit/337b73a459ba24aa529b7b097617434be1d0030e

8274851: [PPC64] Port zgc to linux on ppc64le

Reviewed-by: ihse, pliden, mdoerr, eosterlund

! make/autoconf/jvm-features.m4
! make/hotspot/gensrc/GensrcAdlc.gmk
! src/hotspot/cpu/ppc/assembler_ppc.hpp
+ src/hotspot/cpu/ppc/gc/z/zBarrierSetAssembler_ppc.cpp
+ src/hotspot/cpu/ppc/gc/z/zBarrierSetAssembler_ppc.hpp
+ src/hotspot/cpu/ppc/gc/z/zGlobals_ppc.cpp
+ src/hotspot/cpu/ppc/gc/z/zGlobals_ppc.hpp
+ src/hotspot/cpu/ppc/gc/z/z_ppc.ad
! src/hotspot/cpu/ppc/ppc.ad
! src/hotspot/cpu/ppc/vmreg_ppc.hpp
+ src/hotspot/os_cpu/linux_ppc/gc/z/zSyscall_linux_ppc.hpp

Changeset: c3b75c6c
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2021-10-13 08:10:55 +0000
URL:       https://git.openjdk.java.net/loom/commit/c3b75c6cdf03ffa3c887bf3db29e17668b228f79

8274516: [REDO] JDK-8271880: Tighten condition for excluding regions from collecting cards with cross-references

Reviewed-by: sjohanss, ayang

! src/hotspot/share/gc/g1/g1CollectedHeap.cpp
! src/hotspot/share/gc/g1/g1CollectedHeap.hpp
! src/hotspot/share/gc/g1/g1CollectedHeap.inline.hpp
! src/hotspot/share/gc/g1/g1EvacFailure.cpp
! src/hotspot/share/gc/g1/g1EvacFailure.hpp
! src/hotspot/share/gc/g1/g1HeapRegionAttr.hpp
! src/hotspot/share/gc/g1/g1OopClosures.hpp
! src/hotspot/share/gc/g1/g1ParScanThreadState.cpp
! src/hotspot/share/gc/g1/g1ParScanThreadState.hpp
! src/hotspot/share/gc/g1/g1ParScanThreadState.inline.hpp
! src/hotspot/share/gc/g1/g1YoungCollector.cpp
! src/hotspot/share/gc/g1/g1YoungCollector.hpp
! src/hotspot/share/gc/g1/g1YoungGCPostEvacuateTasks.cpp
! src/hotspot/share/gc/g1/g1YoungGCPostEvacuateTasks.hpp
! src/hotspot/share/gc/shared/referenceProcessor.cpp
! src/hotspot/share/gc/shared/referenceProcessor.hpp

Changeset: dcf428c7
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Serguei Spitsyn <sspitsyn at openjdk.org>
Date:      2021-10-13 09:07:07 +0000
URL:       https://git.openjdk.java.net/loom/commit/dcf428c7a74e568deaededfc11d3c4e1bf7821f2

8275075: Remove unnecessary conversion to String in jdk.hotspot.agent

Reviewed-by: sspitsyn, cjplummer

! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/HSDB.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/interpreter/BytecodeLoadConstant.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/PerfDataEntry.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/ui/classbrowser/HTMLGenerator.java

Changeset: b8cb76ad
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2021-10-13 10:15:54 +0000
URL:       https://git.openjdk.java.net/loom/commit/b8cb76ad210cb3e7524c7f5b13cfe57746ac05d4

8273682: Upgrade Jline to 3.20.0

Reviewed-by: sundar

! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/Candidate.java
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/CompletionMatcher.java
- src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/ConfigurationPath.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/EndOfFileException.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/LineReader.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/LineReaderBuilder.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/Parser.java
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/PrintAboveWriter.java
- src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/ScriptEngine.java
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/impl/CompletionMatcherImpl.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/impl/DefaultHighlighter.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/impl/DefaultParser.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/impl/LineReaderImpl.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/impl/ReaderUtils.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/impl/completer/StringsCompleter.java
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/impl/completer/SystemCompleter.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/impl/history/DefaultHistory.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/terminal/Terminal.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/terminal/TerminalBuilder.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/terminal/impl/AbstractTerminal.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/terminal/impl/AbstractWindowsTerminal.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/terminal/spi/JansiSupport.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/terminal/spi/JnaSupport.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/AttributedCharSequence.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/AttributedString.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/AttributedStringBuilder.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/AttributedStyle.java
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/ColorPalette.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/Colors.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/Curses.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/Display.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/InfoCmp.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/Log.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/NonBlockingPumpInputStream.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/NonBlockingPumpReader.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/PumpReader.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/Signals.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/StyleResolver.java
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/rxvt-basic.caps
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/rxvt-unicode-256color.caps
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/rxvt-unicode.caps
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/rxvt.caps
! src/jdk.internal.le/share/legal/jline.md
! src/jdk.internal.le/windows/classes/jdk/internal/org/jline/terminal/impl/jna/JnaSupportImpl.java
! src/jdk.internal.le/windows/classes/jdk/internal/org/jline/terminal/impl/jna/win/JnaWinSysTerminal.java
! test/jdk/jdk/internal/jline/AbstractWindowsTerminalTest.java
! test/jdk/jdk/internal/jline/KeyConversionTest.java

Changeset: 5ffb5d10
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Pavel Rappo <prappo at openjdk.org>
Date:      2021-10-13 11:34:24 +0000
URL:       https://git.openjdk.java.net/loom/commit/5ffb5d100f3383f9afaf20c8a659971522153505

8272992: Replace usages of Collections.sort with List.sort call in jdk.* modules

Reviewed-by: cjplummer, prappo

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/ClassUseWriter.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/util/Group.java
! src/jdk.jcmd/share/classes/sun/tools/jstat/JStatLogger.java
! src/jdk.jcmd/share/classes/sun/tools/jstat/Jstat.java
! src/jdk.jconsole/share/classes/sun/tools/jconsole/inspector/XOpenTypeViewer.java

Changeset: 451a2965
Author:    Jie Fu <jiefu at openjdk.org>
Date:      2021-10-13 14:30:11 +0000
URL:       https://git.openjdk.java.net/loom/commit/451a296510994ff9fe1e0381900ffa9a8a1caa54

8275173: testlibrary_tests/ir_framework/tests/TestCheckedTests.java fails after JDK-8274911

Reviewed-by: chagedorn, thartmann

! test/hotspot/jtreg/testlibrary_tests/ir_framework/tests/TestCheckedTests.java

Changeset: d8f6b6c1
Author:    Fairoz Matte <fmatte at openjdk.org>
Committer: Ioi Lam <iklam at openjdk.org>
Date:      2021-10-13 15:38:36 +0000
URL:       https://git.openjdk.java.net/loom/commit/d8f6b6c19a591512ff4e956823cb87a83e088ae8

8274718: runtime/cds/appcds/LambdaEagerInit.java fails with -XX:-CompactStrings

Reviewed-by: iklam, ccheung

! test/hotspot/jtreg/runtime/cds/appcds/LambdaEagerInit.java

Changeset: 7deef414
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2021-10-15 15:07:34 +0000
URL:       https://git.openjdk.java.net/loom/commit/7deef414ec750529beaf37fffc7e1b57393e648a

Merge branch 'master' into fibers

! make/autoconf/configure.ac
! make/autoconf/spec.gmk.in
! make/conf/jib-profiles.js
! make/data/jdwp/jdwp.spec
! src/hotspot/cpu/aarch64/aarch64.ad
! src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp
! src/hotspot/cpu/x86/macroAssembler_x86.cpp
! src/hotspot/cpu/x86/macroAssembler_x86.hpp
! src/hotspot/cpu/x86/stubGenerator_x86_64.cpp
! src/hotspot/os/windows/os_windows.cpp
! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/javaClasses.inline.hpp
! src/hotspot/share/code/codeBlob.cpp
! src/hotspot/share/code/nmethod.cpp
! src/hotspot/share/gc/g1/g1CollectedHeap.hpp
! src/hotspot/share/gc/g1/g1CollectedHeap.inline.hpp
! src/hotspot/share/gc/g1/g1ParScanThreadState.cpp
! src/hotspot/share/gc/shared/space.cpp
! src/hotspot/share/gc/z/zNMethod.cpp
! src/hotspot/share/memory/universe.cpp
! src/hotspot/share/oops/instanceStackChunkKlass.inline.hpp
! src/hotspot/share/oops/objArrayOop.hpp
! src/hotspot/share/oops/oop.cpp
! src/hotspot/share/oops/oop.hpp
! src/hotspot/share/oops/oop.inline.hpp
! src/hotspot/share/oops/stackChunkOop.inline.hpp
! src/hotspot/share/oops/typeArrayOop.hpp
! src/hotspot/share/opto/compile.cpp
! src/hotspot/share/opto/library_call.cpp
! src/hotspot/share/prims/jvm.cpp
! src/hotspot/share/prims/jvmtiEnv.cpp
! src/hotspot/share/runtime/arguments.cpp
! src/hotspot/share/runtime/globals.hpp
! src/hotspot/share/runtime/handshake.cpp
! src/hotspot/share/runtime/mutexLocker.cpp
! src/hotspot/share/runtime/safepoint.hpp
! src/hotspot/share/runtime/thread.cpp
! src/hotspot/share/runtime/thread.hpp
! src/hotspot/share/runtime/thread.inline.hpp
! src/hotspot/share/runtime/vmOperations.cpp
! src/hotspot/share/runtime/vmStructs.cpp
! src/hotspot/share/services/heapDumper.cpp
! src/hotspot/share/utilities/vmError.cpp
! src/java.base/share/classes/java/io/FileInputStream.java
! src/java.base/share/classes/java/net/InetAddress.java
! src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java
! src/java.base/share/classes/java/util/jar/JarFile.java
! src/java.base/share/classes/jdk/internal/reflect/NativeConstructorAccessorImpl.java
! src/java.base/share/classes/jdk/internal/reflect/NativeMethodAccessorImpl.java
! src/java.base/unix/native/libnio/fs/UnixNativeDispatcher.c
! src/java.base/windows/classes/java/io/WinNTFileSystem.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/EventRequestManagerImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/ThreadReferenceImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/VirtualMachineImpl.java
! test/hotspot/jtreg/ProblemList.txt
! test/jdk/ProblemList.txt
! test/jdk/TEST.groups
! make/autoconf/configure.ac
! make/autoconf/spec.gmk.in
! make/conf/jib-profiles.js
! make/data/jdwp/jdwp.spec
! src/hotspot/cpu/aarch64/aarch64.ad
! src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp
! src/hotspot/cpu/x86/macroAssembler_x86.cpp
! src/hotspot/cpu/x86/macroAssembler_x86.hpp
! src/hotspot/cpu/x86/stubGenerator_x86_64.cpp
! src/hotspot/os/windows/os_windows.cpp
! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/javaClasses.inline.hpp
! src/hotspot/share/code/codeBlob.cpp
! src/hotspot/share/code/nmethod.cpp
! src/hotspot/share/gc/g1/g1CollectedHeap.hpp
! src/hotspot/share/gc/g1/g1CollectedHeap.inline.hpp
! src/hotspot/share/gc/g1/g1ParScanThreadState.cpp
! src/hotspot/share/gc/shared/space.cpp
! src/hotspot/share/gc/z/zNMethod.cpp
! src/hotspot/share/memory/universe.cpp
+ src/hotspot/share/oops/instanceStackChunkKlass.inline.hpp
! src/hotspot/share/oops/objArrayOop.hpp
! src/hotspot/share/oops/oop.cpp
! src/hotspot/share/oops/oop.hpp
! src/hotspot/share/oops/oop.inline.hpp
+ src/hotspot/share/oops/stackChunkOop.inline.hpp
! src/hotspot/share/oops/typeArrayOop.hpp
! src/hotspot/share/opto/compile.cpp
! src/hotspot/share/opto/library_call.cpp
! src/hotspot/share/prims/jvm.cpp
! src/hotspot/share/prims/jvmtiEnv.cpp
! src/hotspot/share/runtime/arguments.cpp
! src/hotspot/share/runtime/globals.hpp
! src/hotspot/share/runtime/handshake.cpp
! src/hotspot/share/runtime/mutexLocker.cpp
! src/hotspot/share/runtime/safepoint.hpp
! src/hotspot/share/runtime/thread.cpp
! src/hotspot/share/runtime/thread.hpp
! src/hotspot/share/runtime/thread.inline.hpp
! src/hotspot/share/runtime/vmOperations.cpp
! src/hotspot/share/runtime/vmStructs.cpp
! src/hotspot/share/services/heapDumper.cpp
! src/hotspot/share/utilities/vmError.cpp
! src/java.base/share/classes/java/io/FileInputStream.java
! src/java.base/share/classes/java/net/InetAddress.java
! src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java
! src/java.base/share/classes/java/util/jar/JarFile.java
! src/java.base/share/classes/jdk/internal/reflect/NativeConstructorAccessorImpl.java
! src/java.base/share/classes/jdk/internal/reflect/NativeMethodAccessorImpl.java
! src/java.base/unix/native/libnio/fs/UnixNativeDispatcher.c
! src/java.base/windows/classes/java/io/WinNTFileSystem.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/EventRequestManagerImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/ThreadReferenceImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/VirtualMachineImpl.java
! test/hotspot/jtreg/ProblemList.txt
! test/jdk/ProblemList.txt
! test/jdk/TEST.groups

Changeset: 5175c85b
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2021-10-15 15:10:05 +0000
URL:       https://git.openjdk.java.net/loom/commit/5175c85b7485d54812b1c43da3d7e20e66589960

Merge remote-tracking branch 'origin/fibers' into fibers

! src/hotspot/share/prims/jvm.cpp
! src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java
! test/hotspot/jtreg/ProblemList.txt
! src/hotspot/share/prims/jvm.cpp
! src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java
! test/hotspot/jtreg/ProblemList.txt


From duke at openjdk.java.net  Fri Oct 15 14:31:30 2021
From: duke at openjdk.java.net (duke)
Date: Fri, 15 Oct 2021 14:31:30 GMT
Subject: git: openjdk/loom: master: 167 new changesets
Message-ID: <bc452251-d51b-4396-9697-1978f0487abf@openjdk.java.net>

Changeset: 980c50dc
Author:    Roland Westrelin <roland at openjdk.org>
Date:      2021-09-29 14:51:33 +0000
URL:       https://git.openjdk.java.net/loom/commit/980c50dc607e60e12879bd6fb7ff4034469e88d8

8272562: C2: assert(false) failed: Bad graph detected in build_loop_late

Reviewed-by: chagedorn, kvn

! src/hotspot/share/opto/loopopts.cpp
+ test/hotspot/jtreg/compiler/loopopts/TestSunkCastOnUnreachablePath.java

Changeset: edd9d1c9
Author:    Weijun Wang <weijun at openjdk.org>
Date:      2021-09-29 15:37:16 +0000
URL:       https://git.openjdk.java.net/loom/commit/edd9d1c97b7fb50e76abc05d298c9d55db39cc1b

8274330: Incorrect encoding of the DistributionPointName object in IssuingDistributionPointExtension

Reviewed-by: ascarpino

! src/java.base/share/classes/sun/security/x509/IssuingDistributionPointExtension.java
+ test/jdk/sun/security/x509/Extensions/IssuingDistributionPointExtensionEncoding.java

Changeset: b1b66965
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-09-29 16:57:40 +0000
URL:       https://git.openjdk.java.net/loom/commit/b1b66965f1ec6eae547cc4f70f8271bd39ded6da

8274453: (sctp) com/sun/nio/sctp/SctpChannel/CloseDescriptors.java test should be resilient to lsof warnings

Reviewed-by: dfuchs

! test/jdk/com/sun/nio/sctp/SctpChannel/CloseDescriptors.java

Changeset: 97b28742
Author:    Pavel Rappo <prappo at openjdk.org>
Date:      2021-09-29 17:09:08 +0000
URL:       https://git.openjdk.java.net/loom/commit/97b28742b4d3083cadbe4dc10b625ec9fb944353

8274509: Remove stray * and stylistic . from doc comments

Reviewed-by: alanb, dfuchs, lancea, iris, bpb

! src/java.base/share/classes/java/nio/file/Files.java
! src/java.base/share/classes/java/nio/file/Path.java

Changeset: 79cebe2c
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Valerie Peng <valeriep at openjdk.org>
Date:      2021-09-29 18:22:40 +0000
URL:       https://git.openjdk.java.net/loom/commit/79cebe2c1b1e7f43377633b62c970528cac0a786

8274050: Unnecessary Vector usage in javax.crypto

Reviewed-by: valeriep

! src/java.base/share/classes/javax/crypto/CryptoPermissions.java
! src/java.base/share/classes/javax/crypto/CryptoPolicyParser.java

Changeset: 97385d4f
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2021-09-29 23:02:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/97385d4f166fbd63a7c91d2ee28b5ed75cb02518

8274405: Suppress warnings on non-serializable non-transient instance fields in javac and javadoc

Reviewed-by: prappo, jjg

! src/jdk.compiler/share/classes/com/sun/source/util/DocTreePath.java
! src/jdk.compiler/share/classes/com/sun/source/util/TreePath.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/tree/TreeInfo.java
! src/jdk.compiler/share/classes/com/sun/tools/sjavac/pubapi/PubApi.java
! src/jdk.compiler/share/classes/com/sun/tools/sjavac/pubapi/PubApiTypeParam.java
! src/jdk.compiler/share/classes/com/sun/tools/sjavac/pubapi/PubMethod.java
! src/jdk.compiler/share/classes/com/sun/tools/sjavac/pubapi/PubType.java
! src/jdk.compiler/share/classes/com/sun/tools/sjavac/pubapi/PubVar.java
! src/jdk.compiler/share/classes/com/sun/tools/sjavac/server/CompilationSubResult.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/util/DocFileIOException.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/util/ResourceIOException.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/tool/OptionException.java

Changeset: 355356c4
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Naoto Sato <naoto at openjdk.org>
Date:      2021-09-29 23:08:23 +0000
URL:       https://git.openjdk.java.net/loom/commit/355356c405adb9287b786b0b045c2eb974d2ffca

8273435: Remove redundant zero-length check in ClassDesc.of

Reviewed-by: rriggs

! src/java.base/share/classes/java/lang/constant/ClassDesc.java

Changeset: f8415a9b
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-09-30 06:54:13 +0000
URL:       https://git.openjdk.java.net/loom/commit/f8415a9b2f610ed431e6948c8174f6d982e5b31f

8274523: java/lang/management/MemoryMXBean/MemoryTest.java test should handle Shenandoah

Reviewed-by: mchung, cjplummer

! test/jdk/java/lang/management/MemoryMXBean/MemoryTest.java

Changeset: c0533ef2
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-09-30 06:55:24 +0000
URL:       https://git.openjdk.java.net/loom/commit/c0533ef2d8e526aaec0eebe862f4bbefc159ea37

8274522: java/lang/management/ManagementFactory/MXBeanException.java test fails with Shenandoah

Reviewed-by: alanb, mchung

! test/jdk/java/lang/management/ManagementFactory/MXBeanException.java

Changeset: dfc557cb
Author:    Christian Hagedorn <chagedorn at openjdk.org>
Date:      2021-09-30 08:29:43 +0000
URL:       https://git.openjdk.java.net/loom/commit/dfc557cbea342b2991f9d129235470ac789b50a2

8274406: RunThese30M.java failed "assert(!LCA_orig->dominates(pred_block) || early->dominates(pred_block)) failed: early is high enough"

Reviewed-by: kvn, thartmann

! src/hotspot/share/opto/loopopts.cpp
! test/hotspot/jtreg/compiler/loopopts/TestSinkingDivisorLostPin.java

Changeset: a8210c53
Author:    Martin Doerr <mdoerr at openjdk.org>
Date:      2021-09-30 08:41:03 +0000
URL:       https://git.openjdk.java.net/loom/commit/a8210c53e7af1cb558251fcb420de1b8a5461b25

8274401: C2: GraphKit::load_array_element bypasses Access API

Reviewed-by: kvn, goetz, thartmann

! src/hotspot/share/opto/graphKit.cpp
! src/hotspot/share/opto/graphKit.hpp
! src/hotspot/share/opto/library_call.cpp
! src/hotspot/share/opto/stringopts.cpp

Changeset: 94e31e5c
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2021-09-30 08:53:31 +0000
URL:       https://git.openjdk.java.net/loom/commit/94e31e5ca51d1c4c253cf7ac5acd950d10c22267

8274506: TestPids.java and TestPidsLimit.java fail with podman run as root

Reviewed-by: mbaesken, cjplummer

! test/hotspot/jtreg/containers/docker/TestPids.java
! test/jdk/jdk/internal/platform/docker/TestPidsLimit.java

Changeset: 2f955d6f
Author:    Mahendra Chhipa <mahendra.chhipa at oracle.com>
Committer: Michael McMahon <michaelm at openjdk.org>
Date:      2021-09-30 11:29:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/2f955d6f5ba15fc2c06eaf683d1ffa3ade97521b

8273142: Remove dependancy of TestHttpServer, HttpTransaction, HttpCallback from open/test/jdk/sun/net/www/protocol/http/ tests

Reviewed-by: michaelm

! test/jdk/sun/net/www/protocol/http/B6296310.java
! test/jdk/sun/net/www/protocol/http/RelativeRedirect.java
! test/jdk/sun/net/www/protocol/http/ResponseCacheStream.java
! test/jdk/sun/net/www/protocol/http/SetChunkedStreamingMode.java

Changeset: bb95dda0
Author:    Masanori Yano <myano at openjdk.org>
Committer: Hannes Walln?fer <hannesw at openjdk.org>
Date:      2021-09-30 11:33:21 +0000
URL:       https://git.openjdk.java.net/loom/commit/bb95dda0ac5032e4df582f2903dcbbbbaef9e8c4

8248001: javadoc generates invalid HTML pages whose ftp:// links are broken

Reviewed-by: hannesw

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/HtmlDocletWriter.java
! test/langtools/jdk/javadoc/doclet/testHrefInDocComment/TestHrefInDocComment.java
+ test/langtools/jdk/javadoc/doclet/testHrefInDocComment/pkg/J1.java

Changeset: bfd61634
Author:    Lin Zang <lzang at openjdk.org>
Date:      2021-09-30 14:44:59 +0000
URL:       https://git.openjdk.java.net/loom/commit/bfd616347126a802c641326a6be5a14c4cd7af90

8274196: Crashes in VM_HeapDumper::work after JDK-8252842
8274245: sun/tools/jmap/BasicJMapTest.java Mutex rank failures

Reviewed-by: coleenp, pliden, cjplummer

! src/hotspot/share/services/heapDumper.cpp
! test/hotspot/jtreg/ProblemList-zgc.txt
! test/jdk/ProblemList.txt

Changeset: 3e0d7c33
Author:    Alex Kasko <akasko at openjdk.org>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2021-09-30 15:21:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/3e0d7c33d41a93496bfa6a47d1508e415930adf9

8270290: NTLM authentication fails if HEAD request is used

Reviewed-by: dfuchs, michaelm

! src/java.base/share/classes/sun/net/www/protocol/http/HttpURLConnection.java
+ test/jdk/sun/net/www/protocol/http/NTLMHeadTest.java

Changeset: 9180d9a2
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2021-09-30 15:23:44 +0000
URL:       https://git.openjdk.java.net/loom/commit/9180d9a2f990e71ca6ac9c14e55a21f7372929ac

8273216: JCMD does not work across container boundaries with Podman

Reviewed-by: mseledtsov, hseigel

! test/hotspot/jtreg/containers/docker/TestJcmd.java

Changeset: c57ed22e
Author:    Bradford Wetmore <wetmore at openjdk.org>
Date:      2021-09-30 15:46:29 +0000
URL:       https://git.openjdk.java.net/loom/commit/c57ed22e779e7efc8ff7f3c7ec08ce2cb1a738cb

8274528: Add comment to explain an HKDF optimization in SSLSecretDerivation

Reviewed-by: jnimeh

! src/java.base/share/classes/sun/security/ssl/SSLSecretDerivation.java

Changeset: f08180f3
Author:    Erik ?sterlund <eosterlund at openjdk.org>
Date:      2021-09-30 15:52:36 +0000
URL:       https://git.openjdk.java.net/loom/commit/f08180f35f18263e33d96b6d1f06e5129328f01a

8274501: c2i entry barriers read int as long on AArch64

Reviewed-by: shade, kbarrett, aph

! src/hotspot/cpu/aarch64/gc/shared/barrierSetAssembler_aarch64.cpp

Changeset: 95730229
Author:    Patricio Chilano Mateo <pchilanomate at openjdk.org>
Date:      2021-09-30 16:02:14 +0000
URL:       https://git.openjdk.java.net/loom/commit/9573022978bfeff55b51fa6f30027f59a0783d31

8253197: vmTestbase/nsk/jvmti/StopThread/stopthrd007/TestDescription.java fails with "ERROR: DebuggeeSleepingThread: ThreadDeath lost"

Reviewed-by: dholmes, cjplummer, sspitsyn

! test/hotspot/jtreg/vmTestbase/nsk/jvmti/StopThread/stopthrd007.java

Changeset: 8215b2eb
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2021-09-30 16:58:53 +0000
URL:       https://git.openjdk.java.net/loom/commit/8215b2eb61bd89c4041420e1c5c673603d6b2119

8274398: Suppress more warnings on non-serializable non-transient instance fields in management libs

Reviewed-by: sspitsyn

! src/java.management/share/classes/javax/management/loading/MLet.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/ConnectorImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/EventSetImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/VMAction.java
! src/jdk.management.agent/share/classes/sun/management/jmxremote/SingleEntryRegistry.java
! src/jdk.management/share/classes/com/sun/management/internal/GarbageCollectionNotifInfoCompositeData.java
! src/jdk.management/share/classes/com/sun/management/internal/GcInfoCompositeData.java
! src/jdk.management/share/classes/com/sun/management/internal/VMOptionCompositeData.java

Changeset: 73264811
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2021-09-30 17:39:05 +0000
URL:       https://git.openjdk.java.net/loom/commit/7326481143c1321700cbf2caa9e068c5077e22c4

8274393: Suppress more warnings on non-serializable non-transient instance fields in security libs

Reviewed-by: weijun

! src/java.base/share/classes/com/sun/crypto/provider/PBKDF2KeyImpl.java
! src/java.xml.crypto/share/classes/com/sun/org/apache/xml/internal/security/signature/MissingResourceFailureException.java
! src/java.xml.crypto/share/classes/javax/xml/crypto/URIReferenceException.java
! src/jdk.crypto.cryptoki/share/classes/sun/security/pkcs11/P11Key.java
! src/jdk.crypto.cryptoki/share/classes/sun/security/pkcs11/SunPKCS11.java
! src/jdk.crypto.cryptoki/share/classes/sun/security/pkcs11/Token.java
! src/jdk.crypto.ec/share/classes/sun/security/ec/ECPrivateKeyImpl.java
! src/jdk.crypto.ec/share/classes/sun/security/ec/ECPublicKeyImpl.java
! src/jdk.crypto.ec/share/classes/sun/security/ec/XDHPrivateKeyImpl.java
! src/jdk.crypto.ec/share/classes/sun/security/ec/XDHPublicKeyImpl.java
! src/jdk.crypto.ec/share/classes/sun/security/ec/ed/EdDSAPrivateKeyImpl.java
! src/jdk.crypto.ec/share/classes/sun/security/ec/ed/EdDSAPublicKeyImpl.java

Changeset: a8edd1b3
Author:    Jie Fu <jiefu at openjdk.org>
Date:      2021-09-30 23:11:56 +0000
URL:       https://git.openjdk.java.net/loom/commit/a8edd1b360d4e5f35aff371a91fda42eeb00d395

8274527: Minimal VM build fails after JDK-8273459

Reviewed-by: kvn

! src/hotspot/cpu/x86/macroAssembler_x86.cpp
! src/hotspot/cpu/x86/macroAssembler_x86.hpp
! src/hotspot/cpu/x86/macroAssembler_x86_adler.cpp
! src/hotspot/cpu/x86/stubGenerator_x86_64.cpp

Changeset: 2e690ba8
Author:    Kim Barrett <kbarrett at openjdk.org>
Date:      2021-10-01 00:25:35 +0000
URL:       https://git.openjdk.java.net/loom/commit/2e690ba8bda30902f1188cabad63fb60f4eb828f

8274322: Problems with oopDesc construction

Reviewed-by: dholmes, stefank

! src/hotspot/share/oops/instanceOop.hpp
! src/hotspot/share/oops/markWord.hpp
! src/hotspot/share/oops/objArrayOop.hpp
! src/hotspot/share/oops/oop.hpp
! src/hotspot/share/oops/typeArrayOop.hpp

Changeset: 5e4b514e
Author:    Martin Doerr <mdoerr at openjdk.org>
Date:      2021-10-01 08:20:51 +0000
URL:       https://git.openjdk.java.net/loom/commit/5e4b514e6e7e1b9f51fac1983b6c12a988f7f5a8

8274550: c2i entry barriers read int as long on PPC

Reviewed-by: eosterlund, shade

! src/hotspot/cpu/ppc/gc/shared/barrierSetAssembler_ppc.cpp

Changeset: b7b78ff1
Author:    Ao Qi <aoqi at openjdk.org>
Committer: Jie Fu <jiefu at openjdk.org>
Date:      2021-10-01 08:52:04 +0000
URL:       https://git.openjdk.java.net/loom/commit/b7b78ff1f380d19214dbca48455772bc87cc137d

8274561: sun/net/ftp/TestFtpTimeValue.java timed out on slow machines

Reviewed-by: jiefu, dfuchs

! test/jdk/sun/net/ftp/TestFtpTimeValue.java

Changeset: 18870284
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2021-10-01 08:53:04 +0000
URL:       https://git.openjdk.java.net/loom/commit/18870284084aaaf729640de0105ce21e253546b9

8269113: Javac throws when compiling switch (null)

Co-authored-by: Guoxiong Li <gli at openjdk.org>
Reviewed-by: vromero

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/TransPatterns.java
! test/langtools/tools/javac/patterns/SwitchErrors.java
! test/langtools/tools/javac/patterns/SwitchErrors.out
! test/langtools/tools/javac/patterns/Switches.java

Changeset: 292d7bb1
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2021-10-01 08:54:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/292d7bb1d5d311b517b2cd6d0f6dc77e35b3f649

8274363: Transitively sealed classes not considered exhaustive in switches

Reviewed-by: vromero

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Flow.java
! test/langtools/tools/javac/patterns/Exhaustiveness.java

Changeset: cc14c6f0
Author:    Aleksei Efimov <aefimov at openjdk.org>
Date:      2021-10-01 09:48:09 +0000
URL:       https://git.openjdk.java.net/loom/commit/cc14c6f076356731f78aea4e890027f4e2a91642

8274227: Remove "impl.prefix" jdk system property usage from InetAddress

Reviewed-by: alanb, dfuchs

! src/java.base/share/classes/java/net/Inet4AddressImpl.java
! src/java.base/share/classes/java/net/Inet6AddressImpl.java
! src/java.base/share/classes/java/net/InetAddress.java
! src/java.base/share/classes/java/net/InetAddressImpl.java

Changeset: c05dc268
Author:    Ekaterina Vergizova <evergizova at openjdk.org>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2021-10-01 12:53:08 +0000
URL:       https://git.openjdk.java.net/loom/commit/c05dc268acaf87236f30cf700ea3ac778e3b20e5

8274435: EXCEPTION_ACCESS_VIOLATION in BFSClosure::closure_impl

Reviewed-by: stefank

! src/hotspot/share/jfr/leakprofiler/chains/bitset.cpp

Changeset: 3d7671b6
Author:    Brian Burkhalter <bpb at openjdk.org>
Date:      2021-10-01 15:30:55 +0000
URL:       https://git.openjdk.java.net/loom/commit/3d7671b65e8491f3b1fcac8b96401401f783c9f4

8274562: (fs) UserDefinedFileAttributeView doesn't correctly determine if supported when using OverlayFS

Reviewed-by: alanb

! src/java.base/unix/native/libnio/fs/UnixNativeDispatcher.c

Changeset: 05d38604
Author:    Pavel Rappo <prappo at openjdk.org>
Date:      2021-10-01 16:15:48 +0000
URL:       https://git.openjdk.java.net/loom/commit/05d38604a2c620dcaf8682f02dae2fddab8e0c0b

8274605: Fix predicate guarantees on returned values in (Doc)SourcePositions

Reviewed-by: jlahoda, jjg

! src/jdk.compiler/share/classes/com/sun/source/util/DocSourcePositions.java
! src/jdk.compiler/share/classes/com/sun/source/util/SourcePositions.java

Changeset: bb4500d0
Author:    Alexey Ivanov <aivanov at openjdk.org>
Date:      2021-10-01 18:41:51 +0000
URL:       https://git.openjdk.java.net/loom/commit/bb4500d0d227cbb238bd6c862e143f864106a31a

8274465: Fix javax/swing/text/ParagraphView/6364882/bug6364882.java failures

Reviewed-by: jiefu, serb

! test/jdk/javax/swing/text/ParagraphView/6364882/bug6364882.java

Changeset: 0786d8b7
Author:    Brian Burkhalter <bpb at openjdk.org>
Date:      2021-10-01 20:15:44 +0000
URL:       https://git.openjdk.java.net/loom/commit/0786d8b7b367e3aa3ffa54a3e339572938378dca

8268435: (ch) ChannelInputStream could override readAllBytes

Reviewed-by: alanb, lancea

! src/java.base/share/classes/java/io/FileInputStream.java
! src/java.base/share/classes/sun/nio/ch/ChannelInputStream.java
+ test/jdk/java/nio/channels/Channels/ReadXBytes.java

Changeset: 9ca6bf0d
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-02 03:06:29 +0000
URL:       https://git.openjdk.java.net/loom/commit/9ca6bf0d22ac39d4ee29c756903038f09087ca12

8274505: Too weak variable type leads to unnecessary cast in java.desktop

Reviewed-by: serb, kizune, pbansal

! src/java.desktop/share/classes/com/sun/media/sound/SoftSynthesizer.java
! src/java.desktop/share/classes/javax/swing/JFormattedTextField.java
! src/java.desktop/share/classes/javax/swing/JRootPane.java
! src/java.desktop/share/classes/javax/swing/JTree.java
! src/java.desktop/share/classes/javax/swing/plaf/synth/SynthParser.java
! src/java.desktop/share/classes/javax/swing/text/html/AccessibleHTML.java
! src/java.desktop/share/classes/javax/swing/text/html/HTMLDocument.java
! src/java.desktop/share/classes/javax/swing/text/html/HTMLEditorKit.java
! src/java.desktop/share/classes/javax/swing/text/rtf/RTFGenerator.java
! src/java.desktop/share/classes/sun/awt/SunToolkit.java
! src/java.desktop/share/classes/sun/java2d/Disposer.java

Changeset: 79579942
Author:    Robbin Ehn <rehn at openjdk.org>
Date:      2021-10-04 06:47:27 +0000
URL:       https://git.openjdk.java.net/loom/commit/7957994273e20d541b8f2a873781be7fedf712f1

8273695: Safepoint deadlock on VMOperation_lock

Reviewed-by: dcubed, pchilanomate, eosterlund

! src/hotspot/share/runtime/safepointMechanism.hpp
! src/hotspot/share/runtime/safepointMechanism.inline.hpp
! src/hotspot/share/runtime/stackWatermarkSet.cpp
! src/hotspot/share/runtime/stackWatermarkSet.hpp
! test/hotspot/jtreg/ProblemList.txt

Changeset: 32811026
Author:    Prasanta Sadhukhan <psadhukhan at openjdk.org>
Date:      2021-10-04 06:49:10 +0000
URL:       https://git.openjdk.java.net/loom/commit/32811026ce5ecb1d27d835eac33de9ccbd51fcbf

8268084: [macos] Disabled JMenuItem arrow is not disabled

Reviewed-by: serb, jdv

! src/java.desktop/macosx/classes/com/apple/laf/AquaImageFactory.java
+ test/jdk/javax/swing/plaf/aqua/JMenuItemDisableArrowButtonTest.java

Changeset: 6726c592
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Pankaj Bansal <pbansal at openjdk.org>
Date:      2021-10-04 10:27:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/6726c592ed01b112f5eb85d8f1e4406b25c8df2b

8274634: Use String.equals instead of String.compareTo in java.desktop

Reviewed-by: serb, pbansal

! src/java.desktop/macosx/classes/sun/lwawt/macosx/CAccessible.java
! src/java.desktop/share/classes/javax/swing/JList.java
! src/java.desktop/share/classes/javax/swing/JTable.java

Changeset: 0828273b
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-10-04 12:22:55 +0000
URL:       https://git.openjdk.java.net/loom/commit/0828273b898cca5368344e75f1c3f4c3a29dde80

8274521: jdk/jfr/event/gc/detailed/TestGCLockerEvent.java fails when other GC is selected

Reviewed-by: kbarrett, tschatzl

! test/jdk/jdk/jfr/event/gc/detailed/TestGCLockerEvent.java

Changeset: 47bfc8aa
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-10-04 12:35:58 +0000
URL:       https://git.openjdk.java.net/loom/commit/47bfc8aa9367ff852ea5d901f1fa3c6ef316913e

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

Reviewed-by: egahlin

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

Changeset: 7eb0372e
Author:    Alex Kasko <akasko at openjdk.org>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2021-10-04 12:38:34 +0000
URL:       https://git.openjdk.java.net/loom/commit/7eb0372e55f23275b12470593adc97f1b79bc965

8274606: Fix jaxp/javax/xml/jaxp/unittest/transform/SurrogateTest.java test

Reviewed-by: joehw, shade

! test/jaxp/javax/xml/jaxp/unittest/transform/SurrogateTest.java

Changeset: f2404d60
Author:    Naoto Sato <naoto at openjdk.org>
Date:      2021-10-04 15:06:48 +0000
URL:       https://git.openjdk.java.net/loom/commit/f2404d60de2b58c590bf885f5cce50c289073673

8274658: ISO 4217 Amendment 170 Update

Reviewed-by: lancea, iris

! make/data/currency/CurrencyData.properties
! src/java.base/share/classes/sun/util/resources/CurrencyNames.properties
! test/jdk/java/util/Currency/ValidateISO4217.java
! test/jdk/java/util/Currency/tablea1.txt
! test/jdk/sun/text/resources/LocaleData
! test/jdk/sun/text/resources/LocaleDataTest.java

Changeset: f63c4a83
Author:    Weijun Wang <weijun at openjdk.org>
Date:      2021-10-04 15:30:44 +0000
URL:       https://git.openjdk.java.net/loom/commit/f63c4a832a1aea451f47aaf86d5361e970c6a28f

8274471: Verification of OCSP Response signed with RSASSA-PSS fails

Reviewed-by: hchao, jnimeh

! src/java.base/share/classes/sun/security/provider/certpath/OCSP.java
! src/java.base/share/classes/sun/security/provider/certpath/OCSPResponse.java
! src/java.base/share/classes/sun/security/util/SignatureUtil.java
! src/java.base/share/classes/sun/security/x509/AlgorithmId.java
! src/java.base/share/classes/sun/security/x509/X509CRLImpl.java
! src/java.base/share/classes/sun/security/x509/X509CertImpl.java
! test/jdk/java/security/testlibrary/CertificateBuilder.java
! test/jdk/java/security/testlibrary/SimpleOCSPServer.java
! test/jdk/javax/net/ssl/Stapling/HttpsUrlConnClient.java

Changeset: 139a8334
Author:    Adam Sotona <asotona at openjdk.org>
Date:      2021-10-04 15:48:09 +0000
URL:       https://git.openjdk.java.net/loom/commit/139a8334cbc0c8e1a7a708efe18bd488d28292fd

8268869: java in source-file mode suggests javac-only Xlint flags

Reviewed-by: jjg

! src/jdk.compiler/share/classes/com/sun/tools/javac/launcher/Main.java
! test/langtools/tools/javac/launcher/SourceLauncherTest.java

Changeset: 6f727d83
Author:    Jonathan Gibbons <jjg at openjdk.org>
Date:      2021-10-04 16:58:23 +0000
URL:       https://git.openjdk.java.net/loom/commit/6f727d831d8f8fb9b44f4c6bdbdd6ae44316a5d8

8274666: rename HtmlStyle.descfrmTypeLabel to be less cryptic

Reviewed-by: hannesw

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/Contents.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/MethodWriterImpl.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/PropertyWriterImpl.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/markup/HtmlStyle.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/resources/stylesheet.css
! test/langtools/jdk/javadoc/doclet/testInterface/TestInterface.java
! test/langtools/jdk/javadoc/doclet/testOptions/custom-stylesheet.css
! test/langtools/jdk/javadoc/doclet/testOverriddenMethods/TestOverriddenMethodDocCopy.java
! test/langtools/jdk/javadoc/doclet/testOverriddenMethods/TestOverrideMethods.java
! test/langtools/jdk/javadoc/doclet/testPrivateClasses/TestPrivateClasses.java
! test/langtools/jdk/javadoc/doclet/testReturnTag/TestReturnTag.java

Changeset: 0ca094bc
Author:    Jonathan Gibbons <jjg at openjdk.org>
Date:      2021-10-04 16:59:30 +0000
URL:       https://git.openjdk.java.net/loom/commit/0ca094bc5f568842b1619229206ec4a385e5ebf6

8273244: Improve diagnostic output related to ErroneousTree

Reviewed-by: prappo

! src/jdk.compiler/share/classes/com/sun/tools/javac/api/JavacTrees.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/parser/DocCommentParser.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/parser/ReferenceParser.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/tree/DCTree.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/tree/DocTreeMaker.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/util/AbstractLog.java
! src/jdk.compiler/share/classes/jdk/internal/shellsupport/doc/JavadocHelper.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclint/DocLint.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/tool/JavadocLog.java
! test/langtools/tools/doclint/CrashInAnnotateTest.out
! test/langtools/tools/doclint/EndWithIdentifierTest.out
! test/langtools/tools/doclint/UnfinishedInlineTagTest.out
! test/langtools/tools/doclint/tidy/README.txt
! test/langtools/tools/doclint/tidy/UnescapedOrUnknownEntity.out
! test/langtools/tools/javac/doctree/AttrTest.java
! test/langtools/tools/javac/doctree/AuthorTest.java
! test/langtools/tools/javac/doctree/BadTest.java
! test/langtools/tools/javac/doctree/CodeTest.java
+ test/langtools/tools/javac/doctree/CoverageTest.java
! test/langtools/tools/javac/doctree/DeprecatedTest.java
! test/langtools/tools/javac/doctree/DocCommentTester.java
! test/langtools/tools/javac/doctree/DocRootTest.java
! test/langtools/tools/javac/doctree/ElementTest.java
! test/langtools/tools/javac/doctree/EntityTest.java
! test/langtools/tools/javac/doctree/ExceptionTest.java
! test/langtools/tools/javac/doctree/FirstSentenceTest.java
! test/langtools/tools/javac/doctree/HiddenTest.java
! test/langtools/tools/javac/doctree/InPreTest.java
! test/langtools/tools/javac/doctree/IndexTest.java
! test/langtools/tools/javac/doctree/InheritDocTest.java
! test/langtools/tools/javac/doctree/LinkPlainTest.java
! test/langtools/tools/javac/doctree/LinkTest.java
! test/langtools/tools/javac/doctree/LiteralTest.java
! test/langtools/tools/javac/doctree/ParamTest.java
! test/langtools/tools/javac/doctree/ProvidesTest.java
! test/langtools/tools/javac/doctree/ReturnTest.java
! test/langtools/tools/javac/doctree/SeeTest.java
! test/langtools/tools/javac/doctree/SerialDataTest.java
! test/langtools/tools/javac/doctree/SerialFieldTest.java
! test/langtools/tools/javac/doctree/SerialTest.java
! test/langtools/tools/javac/doctree/SinceTest.java
! test/langtools/tools/javac/doctree/SummaryTest.java
! test/langtools/tools/javac/doctree/SystemPropertyTest.java
! test/langtools/tools/javac/doctree/TagTest.java
! test/langtools/tools/javac/doctree/ThrowableTest.java
! test/langtools/tools/javac/doctree/UsesTest.java
! test/langtools/tools/javac/doctree/ValueTest.java
! test/langtools/tools/javac/doctree/VersionTest.java
! test/langtools/tools/javac/doctree/positions/TestPosition.java
! test/langtools/tools/javac/tree/AbstractTreeScannerTest.java

Changeset: 9914e5c4
Author:    Mikhailo Seledtsov <mseledtsov at openjdk.org>
Date:      2021-10-04 17:20:05 +0000
URL:       https://git.openjdk.java.net/loom/commit/9914e5c416b518f408837e31ba0a35138bfcadc7

8274610: Add linux-aarch64 to bootcycle build profiles

Reviewed-by: erikj

! make/conf/jib-profiles.js

Changeset: 75d6688d
Author:    Jonathan Gibbons <jjg at openjdk.org>
Date:      2021-10-04 19:00:21 +0000
URL:       https://git.openjdk.java.net/loom/commit/75d6688df9845ecb8f370b4cd2d5a36f13d3cdc0

8274745: ProblemList TestSnippetTag.java

Reviewed-by: prappo

! test/langtools/ProblemList.txt

Changeset: 7e757f6a
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2021-10-04 21:19:19 +0000
URL:       https://git.openjdk.java.net/loom/commit/7e757f6a2cbfd03ba9ac602b800d15ba33f6f5f4

8274559: JFR: Typo in 'jfr help configure' text

Reviewed-by: iris, mikael

! src/jdk.jfr/share/classes/jdk/jfr/internal/tool/Configure.java

Changeset: 2e542e33
Author:    David Holmes <dholmes at openjdk.org>
Date:      2021-10-04 23:14:12 +0000
URL:       https://git.openjdk.java.net/loom/commit/2e542e33b81a53652956bb5e9636e7f4af5540f7

8274349: ForkJoinPool.commonPool() does not work with 1 CPU

Co-authored-by: Doug Lea <dl at openjdk.org>
Reviewed-by: shade, martin

! src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java
+ test/jdk/java/util/concurrent/forkjoin/Uniprocessor.java
! test/jdk/java/util/concurrent/tck/ForkJoinPoolTest.java

Changeset: e43f540c
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-05 00:53:17 +0000
URL:       https://git.openjdk.java.net/loom/commit/e43f540cde58ee973b97a943f14d3c60e064b801

8274651: Possible race in FontDesignMetrics.KeyReference.dispose

Reviewed-by: prr, serb

! src/java.desktop/share/classes/sun/font/FontDesignMetrics.java

Changeset: 53d7e95b
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-05 06:39:29 +0000
URL:       https://git.openjdk.java.net/loom/commit/53d7e95bc637c8b629efc4587b2ae7961d719b00

8274635: Use String.equals instead of String.compareTo in jdk.accessibility

Reviewed-by: serb

! src/jdk.accessibility/share/classes/com/sun/java/accessibility/util/AccessibilityEventMonitor.java
! src/jdk.accessibility/windows/classes/com/sun/java/accessibility/internal/AccessBridge.java

Changeset: 3953e077
Author:    Christian Hagedorn <chagedorn at openjdk.org>
Date:      2021-10-05 07:02:06 +0000
URL:       https://git.openjdk.java.net/loom/commit/3953e0774c59c5e936e752aa08b6b6778e232994

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

Reviewed-by: roland, thartmann, neliasso

! src/hotspot/share/opto/stringopts.cpp
+ test/hotspot/jtreg/compiler/c2/irTests/stringopts/TestNegativeArraySize.java
! test/hotspot/jtreg/compiler/lib/ir_framework/IRNode.java
! test/hotspot/jtreg/testlibrary_tests/ir_framework/tests/TestIRMatching.java

Changeset: 8f7a37c9
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2021-10-05 07:25:00 +0000
URL:       https://git.openjdk.java.net/loom/commit/8f7a37c92f5713f7728f54d4a5924484a535e968

8274434: move os::get_default_process_handle and os::dll_lookup to os_posix for POSIX platforms

Reviewed-by: dholmes, lucy

! src/hotspot/os/aix/os_aix.cpp
! src/hotspot/os/bsd/os_bsd.cpp
! src/hotspot/os/linux/os_linux.cpp
! src/hotspot/os/posix/os_posix.cpp

Changeset: a914ee72
Author:    Kim Barrett <kbarrett at openjdk.org>
Date:      2021-10-05 08:07:02 +0000
URL:       https://git.openjdk.java.net/loom/commit/a914ee72167f642b76b1c1cdddd7ff0698d061cc

8274632: Possible pointer overflow in PretouchTask chunk claiming

Reviewed-by: tschatzl, ayang

! src/hotspot/share/gc/shared/pretouchTask.cpp
! src/hotspot/share/gc/shared/pretouchTask.hpp

Changeset: a5080eff
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2021-10-05 10:17:24 +0000
URL:       https://git.openjdk.java.net/loom/commit/a5080effc7ec7e260e84e3169c36c5217f18d231

8272564: Incorrect attribution of method invocations of Object methods on interfaces

Reviewed-by: jlaskey, mcimadamore, vromero

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Resolve.java
! test/langtools/tools/javac/api/TestGetElementReference.java
! test/langtools/tools/javac/api/TestGetElementReferenceData.java
+ test/langtools/tools/javac/api/TestIsAccessible.java
+ test/langtools/tools/javac/resolve/NoObjectToString.java

Changeset: 8609ea55
Author:    Harold Seigel <hseigel at openjdk.org>
Date:      2021-10-05 12:39:56 +0000
URL:       https://git.openjdk.java.net/loom/commit/8609ea55acdcc203408f58f7bf96ea9228aef613

8273342: Null pointer dereference in classFileParser.cpp:2817

Reviewed-by: coleenp, dholmes

! src/hotspot/share/runtime/fieldDescriptor.cpp

Changeset: 1459180f
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Weijun Wang <weijun at openjdk.org>
Date:      2021-10-05 13:36:37 +0000
URL:       https://git.openjdk.java.net/loom/commit/1459180f352a5632c0afca2ed55abf31e4b0bfb0

8274079: Cleanup unnecessary calls to Throwable.initCause() in java.base module

Reviewed-by: weijun

! src/java.base/share/classes/com/sun/crypto/provider/AESCipher.java
! src/java.base/share/classes/com/sun/crypto/provider/ConstructKeys.java
! src/java.base/share/classes/com/sun/crypto/provider/DESedeWrapCipher.java
! src/java.base/share/classes/com/sun/crypto/provider/DHPrivateKey.java
! src/java.base/share/classes/com/sun/crypto/provider/PBES2Core.java
! src/java.base/share/classes/com/sun/crypto/provider/PBEWithMD5AndDESCipher.java
! src/java.base/share/classes/com/sun/crypto/provider/PBEWithMD5AndTripleDESCipher.java
! src/java.base/share/classes/com/sun/crypto/provider/PBKDF2Core.java
! src/java.base/share/classes/com/sun/crypto/provider/PBKDF2HmacSHA1Factory.java
! src/java.base/share/classes/com/sun/crypto/provider/PBKDF2KeyImpl.java
! src/java.base/share/classes/com/sun/crypto/provider/PBMAC1Core.java
! src/java.base/share/classes/com/sun/crypto/provider/RSACipher.java
! src/java.base/share/classes/java/io/ObjectStreamClass.java
! src/java.base/share/classes/java/security/cert/TrustAnchor.java
! src/java.base/share/classes/java/security/cert/X509CRLSelector.java
! src/java.base/share/classes/java/time/Duration.java
! src/java.base/share/classes/javax/net/ssl/SSLContext.java
! src/java.base/share/classes/javax/security/auth/login/Configuration.java
! src/java.base/share/classes/javax/security/auth/x500/X500Principal.java
! src/java.base/share/classes/sun/security/provider/DigestBase.java
! src/java.base/share/classes/sun/security/provider/JavaKeyStore.java
! src/java.base/share/classes/sun/security/util/HostnameChecker.java

Changeset: 7ad74d82
Author:    Peter Levart <plevart at openjdk.org>
Date:      2021-10-05 14:16:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/7ad74d82d7117113dd73966a0dd96168adfd6463

8274299: Make Method/Constructor/Field accessors @Stable

Reviewed-by: redestad, mchung

! src/java.base/share/classes/java/lang/reflect/Constructor.java
! src/java.base/share/classes/java/lang/reflect/Field.java
! src/java.base/share/classes/java/lang/reflect/Method.java
! src/java.base/share/classes/jdk/internal/reflect/DelegatingConstructorAccessorImpl.java
! src/java.base/share/classes/jdk/internal/reflect/DelegatingMethodAccessorImpl.java
! src/java.base/share/classes/jdk/internal/reflect/FieldAccessorImpl.java
! src/java.base/share/classes/jdk/internal/reflect/NativeConstructorAccessorImpl.java
! src/java.base/share/classes/jdk/internal/reflect/NativeMethodAccessorImpl.java
! src/java.base/share/classes/jdk/internal/reflect/ReflectionFactory.java
! src/java.base/share/classes/jdk/internal/reflect/UnsafeFieldAccessorImpl.java
! src/java.base/share/classes/jdk/internal/reflect/UnsafeStaticFieldAccessorImpl.java
+ test/micro/org/openjdk/bench/java/lang/reflect/ReflectionColdstartBenchmark.java
+ test/micro/org/openjdk/bench/java/lang/reflect/ReflectionSpeedBenchmark.java

Changeset: bb0bab57
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2021-10-05 14:31:17 +0000
URL:       https://git.openjdk.java.net/loom/commit/bb0bab57a1ff447bfb41cfe10c91838a6812b93d

8274286: Skip null for make_referent_alive in referenceProcessor

Reviewed-by: kbarrett, tschatzl

! src/hotspot/share/gc/shared/referenceProcessor.cpp

Changeset: 90a5ae80
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2021-10-05 15:13:54 +0000
URL:       https://git.openjdk.java.net/loom/commit/90a5ae802e6ef0a6d0a5096a595b0680069960c3

8274282: Clarify special wait assert

Reviewed-by: dholmes, pchilanomate

! src/hotspot/share/runtime/mutex.cpp
! test/hotspot/gtest/runtime/test_mutex.cpp

Changeset: 92b64a20
Author:    Jonathan Gibbons <jjg at openjdk.org>
Date:      2021-10-05 15:21:44 +0000
URL:       https://git.openjdk.java.net/loom/commit/92b64a2053e3f3e0314ed489b92afd37c285ac5f

8273745: VerifyLocale.java occasionally times out

Reviewed-by: prappo

! test/langtools/jdk/javadoc/tool/VerifyLocale.java

Changeset: 4e3948f1
Author:    Jonathan Gibbons <jjg at openjdk.org>
Date:      2021-10-05 15:27:02 +0000
URL:       https://git.openjdk.java.net/loom/commit/4e3948f18b9b8dab96239ad24473134b712ada1a

8274744: TestSnippetTag test fails after recent integration

Reviewed-by: prappo

! test/langtools/ProblemList.txt
! test/langtools/jdk/javadoc/doclet/testSnippetTag/TestSnippetTag.java

Changeset: e1f0df0d
Author:    Hannes Walln?fer <hannesw at openjdk.org>
Date:      2021-10-05 16:57:12 +0000
URL:       https://git.openjdk.java.net/loom/commit/e1f0df0de3b205cecdb1aa1d74562536c06097dd

8267853: Remove unused styles from stylesheet

Reviewed-by: prappo

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/resources/stylesheet.css
! test/langtools/jdk/javadoc/doclet/checkStylesheetClasses/CheckStylesheetClasses.java
! test/langtools/jdk/javadoc/doclet/testStylesheet/TestStylesheet.java

Changeset: 37890650
Author:    Phil Race <prr at openjdk.org>
Date:      2021-10-05 17:30:31 +0000
URL:       https://git.openjdk.java.net/loom/commit/37890650a7c97d484b6b520d909f677dac4e46e1

8274397: [macOS] Stop setting env. var JAVA_MAIN_CLASS_<pid> in launcher code

Reviewed-by: rriggs, serb

! src/java.base/macosx/native/libjli/java_md_macosx.m
! src/java.desktop/macosx/native/libosxapp/NSApplicationAWT.m
+ test/jdk/tools/launcher/MacOSAppNamePropertyTest.java
+ test/jdk/tools/launcher/SystemPropertyTest.java
! test/jdk/tools/launcher/TestSpecialArgs.java

Changeset: c391e59e
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2021-10-05 17:31:57 +0000
URL:       https://git.openjdk.java.net/loom/commit/c391e59ea6fe6759553425e342b2d97824dd9323

8274244: ReportOnImportedModuleAnnotation.java fails on rerun

Reviewed-by: jjg

! test/langtools/tools/javac/processing/ReportOnImportedModuleAnnotation/ReportOnImportedModuleAnnotation.java

Changeset: 03d3c033
Author:    Weijun Wang <weijun at openjdk.org>
Date:      2021-10-05 18:18:51 +0000
URL:       https://git.openjdk.java.net/loom/commit/03d3c0338437bf10b631881c8910ca85985742f6

8273670: Remove weak etypes from default krb5 etype list

Reviewed-by: valeriep, mullan

! src/java.security.jgss/share/classes/sun/security/krb5/internal/crypto/EType.java
! test/jdk/sun/security/krb5/auto/DupEtypes.java
! test/jdk/sun/security/krb5/auto/OneKDC.java
! test/jdk/sun/security/krb5/auto/W83.java
! test/jdk/sun/security/krb5/config/YesNo.java
! test/jdk/sun/security/krb5/config/yesno.conf
! test/jdk/sun/security/krb5/etype/WeakCrypto.java

Changeset: 1e752033
Author:    Weijun Wang <weijun at openjdk.org>
Date:      2021-10-05 18:19:45 +0000
URL:       https://git.openjdk.java.net/loom/commit/1e75203356666a3213deddd775ad1e883ea6d78d

8274656: Remove default_checksum and safe_checksum_type from krb5.conf

Reviewed-by: valeriep

! src/java.security.jgss/share/classes/sun/security/krb5/Checksum.java
! src/java.security.jgss/share/classes/sun/security/krb5/Config.java
! src/java.security.jgss/share/classes/sun/security/krb5/EncryptedData.java
- src/java.security.jgss/share/classes/sun/security/krb5/KrbAppMessage.java
- src/java.security.jgss/share/classes/sun/security/krb5/KrbPriv.java
- src/java.security.jgss/share/classes/sun/security/krb5/KrbSafe.java
! src/java.security.jgss/share/classes/sun/security/krb5/KrbTgsReq.java
- src/java.security.jgss/share/classes/sun/security/krb5/internal/AuthContext.java
- src/java.security.jgss/share/classes/sun/security/krb5/internal/EncKrbPrivPart.java
- src/java.security.jgss/share/classes/sun/security/krb5/internal/KRBPriv.java
- src/java.security.jgss/share/classes/sun/security/krb5/internal/KRBSafe.java
- src/java.security.jgss/share/classes/sun/security/krb5/internal/KRBSafeBody.java
- src/java.security.jgss/share/classes/sun/security/krb5/internal/MethodData.java

Changeset: 332f0673
Author:    Jonathan Gibbons <jjg at openjdk.org>
Date:      2021-10-05 18:54:19 +0000
URL:       https://git.openjdk.java.net/loom/commit/332f0673880d547a5f09cb4efd3b952868a84b91

8274729: Define Position.NOPOS == Diagnostic.NOPOS

Reviewed-by: jlahoda

! src/jdk.compiler/share/classes/com/sun/tools/javac/util/Position.java

Changeset: d34ec6cc
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2021-10-05 19:10:29 +0000
URL:       https://git.openjdk.java.net/loom/commit/d34ec6ccfc27d9401acce0e03595b910764fbfaf

8274793: Suppress warnings on non-serializable non-transient instance fields in sun.net

Reviewed-by: alanb

! src/java.base/share/classes/sun/net/www/http/KeepAliveCache.java
! src/java.base/unix/classes/sun/net/www/protocol/http/ntlm/NTLMAuthentication.java

Changeset: 83b22192
Author:    Igor Veresov <iveresov at openjdk.org>
Date:      2021-10-05 19:44:17 +0000
URL:       https://git.openjdk.java.net/loom/commit/83b2219220266c1365466970d08606fef766c4fa

8273612: Fix for JDK-8272873 causes timeout in running some tests with -Xcomp

Reviewed-by: kvn, neliasso

! src/hotspot/share/compiler/compilationPolicy.cpp
! test/hotspot/jtreg/compiler/jvmci/compilerToVM/IsMatureTest.java
! test/hotspot/jtreg/compiler/jvmci/compilerToVM/IsMatureVsReprofileTest.java

Changeset: 47262670
Author:    Christoph Langer <clanger at openjdk.org>
Date:      2021-10-05 21:06:52 +0000
URL:       https://git.openjdk.java.net/loom/commit/47262670f371923a704ec521da40010c2a46be5a

8274642: jdk/jshell/CommandCompletionTest.java fails with NoSuchElementException after JDK-8271287

Reviewed-by: jlahoda

! test/langtools/jdk/jshell/CommandCompletionTest.java

Changeset: d4e8712c
Author:    Daniel D. Daugherty <dcubed at openjdk.org>
Date:      2021-10-05 21:47:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/d4e8712c0acc786e64f81ad29e54e6e50134f0e0

8274797: ProblemList resourcehogs/serviceability/sa/TestHeapDumpForLargeArray.java on macosx-x64

Reviewed-by: darcy

! test/hotspot/jtreg/ProblemList.txt

Changeset: df7b0c70
Author:    Sergey Tsypanov <sergei.tsypanov at yandex.ru>
Committer: Martin Buchholz <martin at openjdk.org>
Date:      2021-10-05 22:19:35 +0000
URL:       https://git.openjdk.java.net/loom/commit/df7b0c707713195c93ff4e745c89155ee8e4c571

8274715: Implement forEach in Collections.CopiesList

Reviewed-by: martin

! src/java.base/share/classes/java/util/Collections.java
+ test/micro/org/openjdk/bench/java/util/NCopiesBenchmarks.java

Changeset: 986ee5d0
Author:    Yasumasa Suenaga <ysuenaga at openjdk.org>
Date:      2021-10-06 00:36:50 +0000
URL:       https://git.openjdk.java.net/loom/commit/986ee5d0bfd407dc1b7ce75c7c94b6585bfb497d

8274670: Improve version string handling in SA

Reviewed-by: cjplummer, sspitsyn

! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/VM.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/VMVersionMismatchException.java

Changeset: 8a4d2b4a
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-06 02:53:09 +0000
URL:       https://git.openjdk.java.net/loom/commit/8a4d2b4aa76e6aae1cb27f476c6cc71dcd9779f0

8274680: Remove unnecessary conversion to String in java.desktop

Reviewed-by: pbansal, jdv, serb, kizune

! src/java.desktop/share/classes/com/sun/imageio/plugins/jpeg/DHTMarkerSegment.java
! src/java.desktop/share/classes/com/sun/imageio/plugins/jpeg/DQTMarkerSegment.java
! src/java.desktop/share/classes/com/sun/imageio/plugins/jpeg/DRIMarkerSegment.java
! src/java.desktop/share/classes/com/sun/imageio/plugins/jpeg/JFIFMarkerSegment.java
! src/java.desktop/share/classes/com/sun/imageio/plugins/png/PNGMetadata.java
! src/java.desktop/share/classes/javax/imageio/plugins/tiff/TIFFField.java
! src/java.desktop/share/classes/javax/swing/DefaultListSelectionModel.java
! src/java.desktop/share/classes/javax/swing/GroupLayout.java
! src/java.desktop/share/classes/javax/swing/event/TreeModelEvent.java
! src/java.desktop/share/classes/javax/swing/text/TabStop.java
! src/java.desktop/share/classes/javax/swing/text/html/OptionListModel.java
! src/java.desktop/share/classes/javax/swing/tree/DefaultTreeSelectionModel.java
! src/java.desktop/share/classes/sun/java2d/marlin/RendererContext.java
! src/java.desktop/share/classes/sun/print/PSPrinterJob.java
! src/java.desktop/share/classes/sun/swing/plaf/synth/DefaultSynthStyle.java
! src/java.desktop/windows/classes/sun/awt/windows/WDesktopProperties.java

Changeset: 2faced09
Author:    Per Liden <pliden at openjdk.org>
Date:      2021-10-06 07:44:47 +0000
URL:       https://git.openjdk.java.net/loom/commit/2faced09ce0f6901dcdc969e6c85f2a5b55778f1

8274738: ZGC: Use relaxed atomic load when reading bits in the live map

Reviewed-by: stefank, eosterlund

! src/hotspot/share/gc/z/zLiveMap.inline.hpp

Changeset: c74726db
Author:    Andrew Haley <aph at openjdk.org>
Date:      2021-10-06 08:18:10 +0000
URL:       https://git.openjdk.java.net/loom/commit/c74726dbd0767d02abf9535361a86ffb69b646d9

8274730: AArch64: AES/GCM acceleration is broken by the fix for JDK-8273297

Reviewed-by: adinn, roland, kvn

! src/hotspot/cpu/aarch64/matcher_aarch64.hpp
! src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp
! src/hotspot/share/opto/library_call.cpp

Changeset: df125f68
Author:    Christian Hagedorn <chagedorn at openjdk.org>
Date:      2021-10-06 08:21:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/df125f680b6a4517109be80512a113064ca6281d

8273410: IR verification framework fails with "Should find method name in validIrRulesMap"

Reviewed-by: thartmann, neliasso

! test/hotspot/jtreg/compiler/lib/ir_framework/test/TestVM.java
! test/hotspot/jtreg/testlibrary_tests/ir_framework/tests/TestBadFormat.java
+ test/hotspot/jtreg/testlibrary_tests/ir_framework/tests/TestCheckedTests.java

Changeset: cdf89304
Author:    Hannes Walln?fer <hannesw at openjdk.org>
Date:      2021-10-06 09:28:37 +0000
URL:       https://git.openjdk.java.net/loom/commit/cdf89304eafce58e66127d4e277f5fcaf07c9954

8274625: Search field placeholder behavior

Reviewed-by: prappo

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/Navigation.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/markup/HtmlAttr.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/markup/HtmlTree.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/resources/search.js.template
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/resources/doclets.properties
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/resources/stylesheet.css
! test/langtools/jdk/javadoc/doclet/checkStylesheetClasses/CheckStylesheetClasses.java
! test/langtools/jdk/javadoc/doclet/testSearch/TestSearch.java
! test/langtools/jdk/javadoc/doclet/testStylesheet/TestStylesheet.java

Changeset: 9759fcb1
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Pankaj Bansal <pbansal at openjdk.org>
Date:      2021-10-06 10:50:38 +0000
URL:       https://git.openjdk.java.net/loom/commit/9759fcb17b62d76d75b893481bbd4ef45e7ad366

8274496: Use String.contains() instead of String.indexOf() in java.desktop

Reviewed-by: pbansal, serb

! src/java.desktop/share/classes/javax/swing/text/html/CSS.java
! src/java.desktop/share/classes/javax/swing/text/html/HTMLDocument.java
! src/java.desktop/share/classes/javax/swing/text/html/HTMLWriter.java
! src/java.desktop/share/classes/javax/swing/text/html/InlineView.java
! src/java.desktop/share/classes/sun/font/Font2D.java
! src/java.desktop/unix/classes/sun/awt/X11/XWM.java
! src/java.desktop/unix/classes/sun/font/NativeFont.java
! src/java.desktop/unix/classes/sun/font/XMap.java
! src/java.desktop/unix/classes/sun/print/IPPPrintService.java
! src/java.desktop/windows/classes/sun/awt/windows/WDataTransferer.java

Changeset: c80a6127
Author:    Kim Barrett <kbarrett at openjdk.org>
Date:      2021-10-06 11:14:26 +0000
URL:       https://git.openjdk.java.net/loom/commit/c80a612709f1e483575e2843c1f0ea84e1b9a257

8273381: Assert in PtrQueueBufferAllocatorTest.stress_free_list_allocator_vm

Reviewed-by: sjohanss, tschatzl

! test/hotspot/gtest/gc/shared/test_ptrQueueBufferAllocator.cpp

Changeset: b8af6a9b
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2021-10-06 12:14:33 +0000
URL:       https://git.openjdk.java.net/loom/commit/b8af6a9bfb28aaf0fea0cfdaba13236dc8cbaa3a

8273917: Remove 'leaf' ranking for Mutex

Reviewed-by: eosterlund, dholmes

! src/hotspot/share/compiler/compileTask.hpp
! src/hotspot/share/gc/shared/space.cpp
! src/hotspot/share/gc/shenandoah/shenandoahControlThread.cpp
! src/hotspot/share/gc/shenandoah/shenandoahPacer.hpp
! src/hotspot/share/oops/methodData.cpp
! src/hotspot/share/runtime/mutex.cpp
! src/hotspot/share/runtime/mutex.hpp
! src/hotspot/share/runtime/mutexLocker.cpp
! src/hotspot/share/services/heapDumper.cpp
! test/hotspot/gtest/runtime/test_mutex.cpp
! test/hotspot/gtest/runtime/test_safepoint_locks.cpp

Changeset: c10de353
Author:    Christian Stein <cstein at openjdk.org>
Committer: Alan Bateman <alanb at openjdk.org>
Date:      2021-10-06 15:11:28 +0000
URL:       https://git.openjdk.java.net/loom/commit/c10de3538b47c182d7bfeb02f348fac9b2ad0641

8262944: Improve exception message when automatic module lists provider class not in JAR file

Reviewed-by: dfuchs, jvernee, alanb, lancea, mchung

! src/java.base/share/classes/jdk/internal/module/ModulePath.java
! test/jdk/java/lang/module/AutomaticModulesTest.java

Changeset: f3cedbe9
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Daniel Fuchs <dfuchs at openjdk.org>
Date:      2021-10-06 18:11:07 +0000
URL:       https://git.openjdk.java.net/loom/commit/f3cedbe9288e7aea8d5603a2dc9bdc2661c391a6

8274464: Remove redundant stream() call before forEach in java.* modules

Reviewed-by: dfuchs, amenkov, vtewari

! src/java.management.rmi/share/classes/javax/management/remote/rmi/RMIJRMPServerImpl.java
! src/java.management/share/classes/java/lang/management/DefaultPlatformMBeanProvider.java
! src/java.xml/share/classes/javax/xml/catalog/CatalogFeatures.java
! src/java.xml/share/classes/javax/xml/catalog/CatalogImpl.java

Changeset: 4e7d7caa
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Daniel Fuchs <dfuchs at openjdk.org>
Date:      2021-10-06 18:17:58 +0000
URL:       https://git.openjdk.java.net/loom/commit/4e7d7caa0ce1a3c9fc45ca6a85b1a7ec209775b2

8273711: Remove redundant stream() call before forEach in jdk.jlink

Reviewed-by: alanb, psandoz, dfuchs

! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/ImageFileCreator.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/ImagePluginConfiguration.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/ImagePluginStack.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/PerfectHashBuilder.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/PluginRepository.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/ResourcePoolConfiguration.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/plugins/ReleaseInfoPlugin.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/plugins/ResourceFilter.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/plugins/StringSharingPlugin.java

Changeset: 754bc82c
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Daniel Fuchs <dfuchs at openjdk.org>
Date:      2021-10-06 18:20:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/754bc82c4c03e1bedb4b36b5c52873b0a78a6ceb

8274525: Replace uses of StringBuffer with StringBuilder in java.xml

Reviewed-by: joehw, iris, naoto, dfuchs

! src/java.xml/share/classes/com/sun/xml/internal/stream/Entity.java
! src/java.xml/share/classes/com/sun/xml/internal/stream/StaxErrorReporter.java
! src/java.xml/share/classes/com/sun/xml/internal/stream/XMLEventReaderImpl.java
! src/java.xml/share/classes/com/sun/xml/internal/stream/events/LocationImpl.java
! src/java.xml/share/classes/javax/xml/datatype/Duration.java

Changeset: 9945f7a0
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Daniel Fuchs <dfuchs at openjdk.org>
Date:      2021-10-06 18:23:46 +0000
URL:       https://git.openjdk.java.net/loom/commit/9945f7a0744db2470bcfa856e8f831b6a6eb2de8

8274318: Replace 'for' cycles with iterator with enhanced-for in java.management

Reviewed-by: cjplummer, sspitsyn, dfuchs

! src/java.management.rmi/share/classes/javax/management/remote/rmi/RMIServerImpl.java
! src/java.management/share/classes/com/sun/jmx/remote/security/MBeanServerFileAccessController.java
! src/java.management/share/classes/javax/management/relation/RoleResult.java

Changeset: 9561fea7
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-06 22:31:23 +0000
URL:       https://git.openjdk.java.net/loom/commit/9561fea79035f23ca3a6619c9e150433cdf4a232

8273102: Delete deprecated for removal the empty finalize() in java.desktop module

Reviewed-by: pbansal, aivanov, iris, prr

! src/java.desktop/share/classes/java/awt/color/ICC_Profile.java
! src/java.desktop/share/classes/java/awt/image/ColorModel.java
! src/java.desktop/share/classes/java/awt/image/IndexColorModel.java

Changeset: 734d1fbd
Author:    Jonathan Gibbons <jjg at openjdk.org>
Date:      2021-10-06 22:40:44 +0000
URL:       https://git.openjdk.java.net/loom/commit/734d1fbd33be0aa20b26e6e8c776709f478069de

8274211: Test man page that options are documented

Reviewed-by: prappo

+ test/langtools/jdk/javadoc/tool/CheckManPageOptions.java

Changeset: d57fb6f6
Author:    lawrence.andrews <lawrence.andrews at oracle.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-06 23:12:56 +0000
URL:       https://git.openjdk.java.net/loom/commit/d57fb6f684eac5a7e68842dcf3284309e3867521

8274456: Remove jtreg tag manual=yesno java/awt/print/PrinterJob/PageDialogTest.java

Reviewed-by: serb

! test/jdk/java/awt/print/PrinterJob/PageDialogTest.java

Changeset: c833b4d1
Author:    Jie Fu <jiefu at openjdk.org>
Date:      2021-10-06 23:22:04 +0000
URL:       https://git.openjdk.java.net/loom/commit/c833b4d130fabfa6a6f3a38313f76eb7e392c6a5

8274329: Fix non-portable HotSpot code in MethodMatcher::parse_method_pattern

Reviewed-by: iklam, ihse, kvn

! src/hotspot/share/compiler/methodMatcher.cpp

Changeset: 4e960fe5
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-07 03:42:50 +0000
URL:       https://git.openjdk.java.net/loom/commit/4e960fe53f0948c0b0decfeb13f6dd8f74bf3d6f

8274497: Unnecessary Vector usage in AquaFileSystemModel

Reviewed-by: serb, pbansal

! src/java.desktop/macosx/classes/com/apple/laf/AquaFileSystemModel.java

Changeset: 5762ec25
Author:    Florian Weimer <fweimer at openjdk.org>
Committer: Alan Bateman <alanb at openjdk.org>
Date:      2021-10-07 07:02:01 +0000
URL:       https://git.openjdk.java.net/loom/commit/5762ec25877ab9207a2fb05888f952690737e318

8274780: ChannelInputStream.readNBytes(int) incorrectly calls readAllBytes()

Reviewed-by: alanb, bpb

! src/java.base/share/classes/sun/nio/ch/ChannelInputStream.java
! test/jdk/java/nio/channels/Channels/ReadXBytes.java

Changeset: 29dcbb72
Author:    Richard Reingruber <rrich at openjdk.org>
Date:      2021-10-07 08:20:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/29dcbb72a2d9b224203d92ad3224cf149a7d08de

8274716: JDWP Spec: the description for the Dispose command confuses suspend with resume.

Reviewed-by: alanb, cjplummer, sspitsyn

! make/data/jdwp/jdwp.spec

Changeset: d5ccfa2a
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Serguei Spitsyn <sspitsyn at openjdk.org>
Date:      2021-10-07 09:38:42 +0000
URL:       https://git.openjdk.java.net/loom/commit/d5ccfa2ae965a9ae0f3597b0b90d702a3e0ea558

8274755: Replace 'while' cycles with iterator with enhanced-for in jdk.jdi

Reviewed-by: alanb, amenkov, sspitsyn, cjplummer

! src/jdk.jdi/share/classes/com/sun/tools/jdi/ConcreteMethodImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/ConnectorImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/EventRequestManagerImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/InvokableTypeImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/ReferenceTypeImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/TargetVM.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/ThreadReferenceImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/VMState.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/VirtualMachineImpl.java

Changeset: 83198361
Author:    Yude Lin <yude.lyd at alibaba-inc.com>
Committer: Thomas Schatzl <tschatzl at openjdk.org>
Date:      2021-10-07 11:28:49 +0000
URL:       https://git.openjdk.java.net/loom/commit/8319836152cbd0aa5bf6c93d3ba04733cacf83b4

8274546: Shenandoah: Remove unused ShenandoahUpdateRootsTask copy

Reviewed-by: zgu, tschatzl

! src/hotspot/share/gc/shenandoah/shenandoahConcurrentMark.cpp

Changeset: 340c715c
Author:    Lin Zang <lzang at openjdk.org>
Date:      2021-10-07 11:57:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/340c715c3b0f5ad5204f9dddb17a787b07426543

8273929: Remove GzipRandomAccess in heap dump test

Reviewed-by: cjplummer, sspitsyn

- test/lib/jdk/test/lib/hprof/parser/GzipRandomAccess.java
! test/lib/jdk/test/lib/hprof/parser/Reader.java

Changeset: 722d639f
Author:    Jie Fu <jiefu at openjdk.org>
Date:      2021-10-07 12:42:16 +0000
URL:       https://git.openjdk.java.net/loom/commit/722d639fad2e4fc6eb2aabd427e2719501899cfe

8274838: runtime/cds/appcds/TestSerialGCWithCDS.java fails on Windows

Reviewed-by: iklam, hseigel

! test/hotspot/jtreg/runtime/cds/appcds/TestSerialGCWithCDS.java

Changeset: 03a8d342
Author:    Sean Coffey <coffeys at openjdk.org>
Date:      2021-10-07 15:12:13 +0000
URL:       https://git.openjdk.java.net/loom/commit/03a8d342b86e720d3cba08d540182b4ab161fba3

8273826: Correct Manifest file name and NPE checks

Reviewed-by: weijun, hchao, mullan

! src/java.base/share/classes/java/util/jar/JarFile.java
! src/java.base/share/classes/java/util/jar/JarInputStream.java
! src/java.base/share/classes/java/util/jar/JarVerifier.java
! src/java.base/share/classes/sun/security/util/ManifestEntryVerifier.java
+ test/jdk/sun/security/tools/jarsigner/warnings/LowerCaseManifest.java

Changeset: 4ab274ac
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2021-10-07 15:24:00 +0000
URL:       https://git.openjdk.java.net/loom/commit/4ab274ac1a241b2d63f46084ec23aa7cff4bc28e

8274858: Remove unused dictionary_classes_do functions

Reviewed-by: dholmes, hseigel

! src/hotspot/share/classfile/classLoaderDataGraph.cpp
! src/hotspot/share/classfile/classLoaderDataGraph.hpp
! src/hotspot/share/memory/universe.cpp

Changeset: 8ca08461
Author:    Naoto Sato <naoto at openjdk.org>
Date:      2021-10-07 15:32:11 +0000
URL:       https://git.openjdk.java.net/loom/commit/8ca084617f331b6af934179f3f776c8158da5bba

8274407: (tz) Update Timezone Data to 2021c
8274467: TestZoneInfo310.java fails with tzdata2021b
8274468: TimeZoneTest.java fails with tzdata2021b

Reviewed-by: rriggs, iris, coffeys

! make/data/tzdata/VERSION
! make/data/tzdata/africa
! make/data/tzdata/antarctica
! make/data/tzdata/asia
! make/data/tzdata/australasia
! make/data/tzdata/backward
! make/data/tzdata/europe
! make/data/tzdata/leapseconds
! make/data/tzdata/northamerica
! make/data/tzdata/southamerica
! make/data/tzdata/zone.tab
! src/java.base/share/classes/sun/util/calendar/ZoneInfoFile.java
! test/jdk/java/util/TimeZone/TimeZoneTest.java

Changeset: 7de2cf85
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Daniel Fuchs <dfuchs at openjdk.org>
Date:      2021-10-07 16:55:45 +0000
URL:       https://git.openjdk.java.net/loom/commit/7de2cf852d75ea6eb039e69067d4e32421283de5

8273910: Redundant condition and assignment in java.net.URI

Reviewed-by: dfuchs

! src/java.base/share/classes/java/net/URI.java

Changeset: 920e7070
Author:    Daniel D. Daugherty <dcubed at openjdk.org>
Date:      2021-10-07 17:14:26 +0000
URL:       https://git.openjdk.java.net/loom/commit/920e70701da9699765c993e11feba3cc0fd0362c

8274920: ProblemList 2 VectorAPI tests failing due to "assert(!vbox->is_Phi()) failed"

Reviewed-by: kvn

! test/hotspot/jtreg/ProblemList-Xcomp.txt

Changeset: 8de77634
Author:    Yumin Qi <minqi at openjdk.org>
Date:      2021-10-07 21:33:32 +0000
URL:       https://git.openjdk.java.net/loom/commit/8de77634c414cc348a6eb7b28fd6339befdb12d7

8273152: Refactor CDS FileMapHeader loading code

Reviewed-by: ccheung, iklam

! src/hotspot/share/cds/archiveBuilder.cpp
! src/hotspot/share/cds/cdsConstants.cpp
! src/hotspot/share/cds/dynamicArchive.cpp
! src/hotspot/share/cds/filemap.cpp
! src/hotspot/share/cds/filemap.hpp
! src/hotspot/share/include/cds.h
! src/hotspot/share/runtime/arguments.cpp
! src/jdk.hotspot.agent/share/native/libsaproc/ps_core_common.c
! test/hotspot/jtreg/runtime/cds/appcds/SharedArchiveConsistency.java
! test/hotspot/jtreg/runtime/cds/appcds/dynamicArchive/ArchiveConsistency.java
! test/lib/jdk/test/lib/cds/CDSArchiveUtils.java

Changeset: 97ea9dd2
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2021-10-08 06:40:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/97ea9dd2f24f9f1fb9b9345a4202a825ee28e014

8274840: Update OS detection code to recognize Windows 11

Co-authored-by: Arno Zeller <arno.zeller at sap.com>
Reviewed-by: clanger, dholmes

! src/hotspot/os/windows/os_windows.cpp
! src/java.base/windows/native/libjava/java_props_md.c

Changeset: b60837a7
Author:    Doug Simon <dnsimon at openjdk.org>
Date:      2021-10-08 08:06:53 +0000
URL:       https://git.openjdk.java.net/loom/commit/b60837a7d5d6f920d2fb968369564df155dc1018

8272586: emit abstract machine code in hs-err logs

Reviewed-by: kvn, dholmes

! src/hotspot/share/code/nmethod.cpp
! src/hotspot/share/compiler/compileTask.cpp
! src/hotspot/share/compiler/compileTask.hpp
! src/hotspot/share/compiler/disassembler.cpp
! src/hotspot/share/utilities/vmError.cpp
! src/hotspot/share/utilities/vmError.hpp
+ test/hotspot/jtreg/runtime/ErrorHandling/MachCodeFramesInErrorFile.java

Changeset: 6364719c
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2021-10-08 12:23:19 +0000
URL:       https://git.openjdk.java.net/loom/commit/6364719cd1c57220769ea580d958da8dc2fdf7f9

8274004: Change 'nonleaf' rank name
8273956: Add checking for rank values

Reviewed-by: dholmes, pchilanomate

! src/hotspot/os/aix/osThread_aix.cpp
! src/hotspot/os/bsd/osThread_bsd.cpp
! src/hotspot/os/linux/osThread_linux.cpp
! src/hotspot/share/classfile/classLoaderData.cpp
! src/hotspot/share/compiler/compileTask.hpp
! src/hotspot/share/gc/g1/g1RegionToSpaceMapper.cpp
! src/hotspot/share/gc/g1/g1ServiceThread.cpp
! src/hotspot/share/gc/g1/heapRegion.cpp
! src/hotspot/share/gc/g1/heapRegionRemSet.cpp
! src/hotspot/share/gc/parallel/psCompactionManager.cpp
! src/hotspot/share/gc/shared/gcLogPrecious.cpp
! src/hotspot/share/gc/shared/oopStorage.cpp
! src/hotspot/share/gc/shared/space.cpp
! src/hotspot/share/gc/shared/taskTerminator.cpp
! src/hotspot/share/gc/shared/workgroup.cpp
! src/hotspot/share/gc/shenandoah/shenandoahControlThread.cpp
! src/hotspot/share/gc/shenandoah/shenandoahPacer.hpp
! src/hotspot/share/gc/z/zMessagePort.inline.hpp
! src/hotspot/share/gc/z/zMetronome.cpp
! src/hotspot/share/memory/heapInspection.hpp
! src/hotspot/share/memory/metaspace/testHelpers.cpp
! src/hotspot/share/oops/methodData.cpp
! src/hotspot/share/prims/jvmtiTagMap.cpp
! src/hotspot/share/runtime/handshake.cpp
! src/hotspot/share/runtime/mutex.cpp
! src/hotspot/share/runtime/mutex.hpp
! src/hotspot/share/runtime/mutexLocker.cpp
! src/hotspot/share/runtime/stackWatermark.cpp
! src/hotspot/share/runtime/vmOperations.cpp
! src/hotspot/share/runtime/vmThread.cpp
! src/hotspot/share/services/heapDumper.cpp
! src/hotspot/share/services/heapDumperCompression.cpp
! src/hotspot/share/services/memoryManager.cpp
! src/hotspot/share/utilities/concurrentHashTable.inline.hpp
! src/hotspot/share/utilities/events.hpp
! test/hotspot/gtest/metaspace/test_is_metaspace_obj.cpp
! test/hotspot/gtest/metaspace/test_metaspacearena.cpp
! test/hotspot/gtest/metaspace/test_metaspacearena_stress.cpp
! test/hotspot/gtest/runtime/test_mutex.cpp
- test/hotspot/gtest/runtime/test_safepoint_locks.cpp
! test/hotspot/gtest/utilities/test_filterQueue.cpp

Changeset: 2aacd422
Author:    Roland Westrelin <roland at openjdk.org>
Date:      2021-10-08 14:48:35 +0000
URL:       https://git.openjdk.java.net/loom/commit/2aacd4220a01b467de671212c7a74e6c81a2ad3c

8274145: C2: condition incorrectly made redundant with dominating main loop exit condition

Reviewed-by: kvn, neliasso

! src/hotspot/share/opto/loopnode.hpp
! src/hotspot/share/opto/loopopts.cpp
+ test/hotspot/jtreg/compiler/loopopts/TestIfReplacedByMainLoopExit.java

Changeset: 36b89a18
Author:    Christian Hagedorn <chagedorn at openjdk.org>
Date:      2021-10-08 14:51:18 +0000
URL:       https://git.openjdk.java.net/loom/commit/36b89a18931d42b8002a843ec8218b5c1ba54374

8274785: ciReplay: Potential crash due to uninitialized Compile::_ilt variable

Reviewed-by: neliasso, kvn

! src/hotspot/share/opto/compile.cpp

Changeset: ccbce107
Author:    Sergey Tsypanov <sergei.tsypanov at yandex.ru>
Committer: Jayathirth D V <jdv at openjdk.org>
Date:      2021-10-08 15:58:36 +0000
URL:       https://git.openjdk.java.net/loom/commit/ccbce107f299c3b1c444e819c1fda7ae3c4866b5

8272756: Remove unnecessary explicit initialization of volatile variables in java.desktop

Reviewed-by: jdv, aivanov

! src/java.desktop/macosx/classes/sun/lwawt/LWLightweightFramePeer.java
! src/java.desktop/macosx/classes/sun/lwawt/LWWindowPeer.java
! src/java.desktop/macosx/classes/sun/lwawt/macosx/CCheckboxMenuItem.java
! src/java.desktop/macosx/classes/sun/lwawt/macosx/CPlatformEmbeddedFrame.java
! src/java.desktop/macosx/classes/sun/lwawt/macosx/CWarningWindow.java
! src/java.desktop/share/classes/com/sun/imageio/plugins/tiff/TIFFIFD.java
! src/java.desktop/share/classes/com/sun/media/sound/DirectAudioDevice.java
! src/java.desktop/share/classes/com/sun/media/sound/SoftAudioPusher.java
! src/java.desktop/share/classes/com/sun/media/sound/SoftSynthesizer.java
! src/java.desktop/share/classes/java/awt/Component.java
! src/java.desktop/share/classes/java/awt/Container.java
! src/java.desktop/share/classes/java/awt/Dialog.java
! src/java.desktop/share/classes/java/awt/Window.java
! src/java.desktop/share/classes/java/awt/event/InvocationEvent.java
! src/java.desktop/share/classes/java/awt/font/NumericShaper.java
! src/java.desktop/share/classes/javax/swing/JComponent.java
! src/java.desktop/share/classes/sun/awt/AppContext.java
! src/java.desktop/share/classes/sun/awt/datatransfer/SunClipboard.java
! src/java.desktop/share/classes/sun/awt/dnd/SunDragSourceContextPeer.java
! src/java.desktop/share/classes/sun/java2d/Disposer.java
! src/java.desktop/share/classes/sun/java2d/marlin/RendererStats.java
! src/java.desktop/unix/classes/sun/awt/X11/GtkFileDialogPeer.java
! src/java.desktop/unix/classes/sun/awt/X11/ListHelper.java
! src/java.desktop/unix/classes/sun/awt/X11/XInputMethod.java
! src/java.desktop/unix/classes/sun/awt/X11/XLightweightFramePeer.java
! src/java.desktop/unix/classes/sun/awt/X11/XWarningWindow.java
! src/java.desktop/windows/classes/sun/awt/windows/ThemeReader.java
! src/java.desktop/windows/classes/sun/awt/windows/WObjectPeer.java

Changeset: ec199072
Author:    Naoto Sato <naoto at openjdk.org>
Date:      2021-10-08 16:11:22 +0000
URL:       https://git.openjdk.java.net/loom/commit/ec199072c5867624d66840238cc8828e16ae8da7

8274864: Remove Amman/Cairo hacks in ZoneInfoFile

Reviewed-by: iris, joehw

! src/java.base/share/classes/sun/util/calendar/ZoneInfoFile.java

Changeset: 239a35aa
Author:    Brian Burkhalter <bpb at openjdk.org>
Date:      2021-10-08 16:43:16 +0000
URL:       https://git.openjdk.java.net/loom/commit/239a35aa9166d0cb0b20850e1b52ad23b653d8d0

8233749: Files.exists javadoc doesn't mention eating IOException

Reviewed-by: lancea, alanb

! src/java.base/share/classes/java/nio/file/Files.java

Changeset: 3cb9724e
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2021-10-08 21:10:42 +0000
URL:       https://git.openjdk.java.net/loom/commit/3cb9724ed94a7267853c5cddb18b4ae868ecf2e9

8274934: Attempting to acquire lock JNICritical_lock/41 out of order with lock MultiArray_lock/41

Reviewed-by: dcubed, iklam

! src/hotspot/share/runtime/mutexLocker.cpp

Changeset: 9c431dd1
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Pavel Rappo <prappo at openjdk.org>
Date:      2021-10-08 23:08:05 +0000
URL:       https://git.openjdk.java.net/loom/commit/9c431dd168c8a752d4aa1bde2268db0425d76990

8274900: Too weak variable type leads to unnecessary cast in jdk.javadoc

Reviewed-by: prappo

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/SourceToHTMLConverter.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/builders/SerializedFormBuilder.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/util/SummaryAPIListBuilder.java

Changeset: f640c7aa
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-09 00:46:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/f640c7aaa852b6c0e9144654b7222a6777201370

8274806: Simplify equals() call on nullable variable and a constant in java.desktop

Reviewed-by: serb, pbansal

! src/java.desktop/macosx/classes/sun/lwawt/macosx/CMenuItem.java
! src/java.desktop/share/classes/java/awt/Window.java
! src/java.desktop/share/classes/javax/swing/DefaultDesktopManager.java
! src/java.desktop/share/classes/javax/swing/JLayeredPane.java
! src/java.desktop/share/classes/javax/swing/filechooser/FileSystemView.java
! src/java.desktop/share/classes/javax/swing/text/html/HTMLEditorKit.java
! src/java.desktop/share/classes/sun/java2d/SurfaceDataProxy.java
! src/java.desktop/share/classes/sun/print/RasterPrinterJob.java
! src/java.desktop/unix/classes/sun/awt/X11/XTaskbarPeer.java
! src/java.desktop/unix/classes/sun/print/UnixPrintJob.java
! src/java.desktop/windows/classes/sun/awt/windows/WDesktopProperties.java

Changeset: aac6c4ea
Author:    Pankaj Bansal <pbansal at openjdk.org>
Date:      2021-10-09 03:52:53 +0000
URL:       https://git.openjdk.java.net/loom/commit/aac6c4ea707fa592b2bcd7586c1fe61a19e3725e

8272229: BasicSplitPaneDivider:oneTouchExpandableChanged() returns leftButton and rightButton as null with GTKLookAndFeel

Reviewed-by: serb, jdv, kizune

! src/java.desktop/share/classes/javax/swing/plaf/basic/BasicSplitPaneDivider.java

Changeset: 6d1d4d52
Author:    Wang Huang <whuang at openjdk.org>
Committer: Hamlin Li <mli at openjdk.org>
Date:      2021-10-09 08:19:17 +0000
URL:       https://git.openjdk.java.net/loom/commit/6d1d4d52928ed38bbc73ddcbede5389995a8e65f

8268231: Aarch64: Use ldp in intrinsics for String.compareTo

Co-authored-by: Wang Huang <whuang at openjdk.org>
Co-authored-by: Sun Jianye <sunjianye at huawei.com>
Co-authored-by: Wu Yan <wuyan at openjdk.org>
Reviewed-by: ngasson, aph

! src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp

Changeset: 2c83559e
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-10 08:41:52 +0000
URL:       https://git.openjdk.java.net/loom/commit/2c83559eda410d268c6d8a56d7fd1c34f817cb83

8274882: Cleanup redundant boxing in java.desktop

Reviewed-by: serb, pbansal

! src/java.desktop/share/classes/com/sun/java/swing/plaf/gtk/Metacity.java
! src/java.desktop/share/classes/javax/swing/SwingUtilities.java
! src/java.desktop/share/classes/javax/swing/plaf/metal/MetalLookAndFeel.java
! src/java.desktop/share/classes/sun/awt/SunToolkit.java
! src/java.desktop/share/classes/sun/awt/image/VSyncedBSManager.java
! src/java.desktop/share/classes/sun/java2d/marlin/MarlinProperties.java
! src/java.desktop/unix/classes/sun/awt/X11/MotifColorUtilities.java
! src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsLookAndFeel.java
! src/java.desktop/windows/classes/sun/awt/windows/TranslucentWindowPainter.java

Changeset: 296f8537
Author:    lawrence.andrews <lawrence.andrews at oracle.com>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-10 08:46:04 +0000
URL:       https://git.openjdk.java.net/loom/commit/296f8537f71b84f194cf2718ac9b85ba6843cfa3

8274029: Remove jtreg tag manual=yesno for java/awt/print/Dialog/DialogOrient.java

Reviewed-by: serb

! test/jdk/java/awt/print/Dialog/DialogOrient.java

Changeset: 2ff3977a
Author:    Jie Fu <jiefu at openjdk.org>
Date:      2021-10-10 14:00:58 +0000
URL:       https://git.openjdk.java.net/loom/commit/2ff3977a66c8d8b521cd0ad266ba954682a268ce

8275004: CDS build failure with gcc11

Reviewed-by: shade

! src/hotspot/share/cds/cdsConstants.hpp

Changeset: 5ecc99bb
Author:    Lin Zang <lzang at openjdk.org>
Date:      2021-10-11 01:56:34 +0000
URL:       https://git.openjdk.java.net/loom/commit/5ecc99bbf55e631b5bfa07e2c36b38e820682363

8274620: resourcehogs/serviceability/sa/TestHeapDumpForLargeArray.java is timing out

Reviewed-by: cjplummer, dholmes

! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/utilities/HeapHprofBinWriter.java
! test/hotspot/jtreg/ProblemList.txt

Changeset: a05873a2
Author:    Ao Qi <aoqi at openjdk.org>
Committer: Jie Fu <jiefu at openjdk.org>
Date:      2021-10-11 02:17:56 +0000
URL:       https://git.openjdk.java.net/loom/commit/a05873a225c40d12e60870794b9c993d1ea89cfe

8274952: jdk/jfr/api/consumer/TestRecordedFrameType.java failed when c1 disabled

Reviewed-by: egahlin, jiefu

! test/jdk/jdk/jfr/api/consumer/TestRecordedFrameType.java

Changeset: c032186b
Author:    Fei Gao <Fei.Gao at arm.com>
Committer: Pengfei Li <pli at openjdk.org>
Date:      2021-10-11 06:59:37 +0000
URL:       https://git.openjdk.java.net/loom/commit/c032186b421c64b44397cb7aa101b40e5f93dfff

8272968: AArch64: Remove redundant matching rules for commutative ops

Reviewed-by: ngasson

! src/hotspot/cpu/aarch64/aarch64.ad

Changeset: 49f8ce6e
Author:    Martin Doerr <mdoerr at openjdk.org>
Date:      2021-10-11 10:31:54 +0000
URL:       https://git.openjdk.java.net/loom/commit/49f8ce6e9c797cd11ea586e3cf87398888bc8cf1

8274773: [TESTBUG] UnsafeIntrinsicsTest intermittently fails on weak memory model platform

Reviewed-by: eosterlund, goetz

! test/hotspot/jtreg/compiler/gcbarriers/UnsafeIntrinsicsTest.java

Changeset: 3edee1e1
Author:    Roman Kennke <rkennke at openjdk.org>
Date:      2021-10-11 10:37:54 +0000
URL:       https://git.openjdk.java.net/loom/commit/3edee1e1feed564397ac47a32c0394d7798bac17

8272723: Don't use Access API to access primitive fields

Reviewed-by: stefank, eosterlund

! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/javaClasses.inline.hpp
! src/hotspot/share/jvmci/jvmciJavaClasses.cpp
! src/hotspot/share/oops/instanceKlass.inline.hpp
! src/hotspot/share/oops/oop.cpp
! src/hotspot/share/oops/oop.hpp
! src/hotspot/share/oops/oop.inline.hpp
! src/hotspot/share/oops/typeArrayOop.inline.hpp
! src/hotspot/share/prims/unsafe.cpp

Changeset: c55dd365
Author:    Jie Fu <jiefu at openjdk.org>
Date:      2021-10-11 10:51:39 +0000
URL:       https://git.openjdk.java.net/loom/commit/c55dd365e3463670697b09de0ff70877203e5a69

8275008: gtest build failure due to stringop-overflow warning with gcc11

Reviewed-by: dholmes, ihse

! make/hotspot/lib/CompileGtest.gmk

Changeset: aaf2401b
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2021-10-11 11:46:46 +0000
URL:       https://git.openjdk.java.net/loom/commit/aaf2401bc7d766dee5ffc623db86c4723c7e3760

8274927: Remove unnecessary G1ArchiveAllocator code

Reviewed-by: kbarrett, ayang

! src/hotspot/share/gc/g1/g1Allocator.cpp
! src/hotspot/share/gc/g1/g1Allocator.hpp
! src/hotspot/share/gc/g1/g1CollectedHeap.cpp

Changeset: b7af8905
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2021-10-11 11:48:50 +0000
URL:       https://git.openjdk.java.net/loom/commit/b7af890574b3c13122fe7de987a8c9458c05f625

8274430: Remove some debug error printing code added in JDK-8017163

Reviewed-by: sjohanss, ayang

! src/hotspot/share/gc/g1/heapRegion.cpp

Changeset: 110e38de
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2021-10-11 12:11:11 +0000
URL:       https://git.openjdk.java.net/loom/commit/110e38ded8e09361f24c582c770d35f5cfdabf82

8274753: ZGC: SEGV in MetaspaceShared::link_shared_classes
8274935: dumptime_table has stale entry

Reviewed-by: eosterlund, iklam

! src/hotspot/share/cds/metaspaceShared.cpp
! src/hotspot/share/classfile/classLoaderData.cpp
! test/hotspot/jtreg/runtime/cds/appcds/loaderConstraints/DynamicLoaderConstraintsTest.java

Changeset: b870468b
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2021-10-11 12:38:08 +0000
URL:       https://git.openjdk.java.net/loom/commit/b870468bdc99938fbb19a41b0ede0a3e3769ace2

8274347: Passing a *nested* switch expression as a parameter causes an NPE during compile

Reviewed-by: vromero

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java
! test/langtools/tools/javac/api/TestGetScopeResult.java
! test/langtools/tools/javac/switchexpr/ExpressionSwitchInfer.java

Changeset: 0d80f6cf
Author:    Patricio Chilano Mateo <pchilanomate at openjdk.org>
Date:      2021-10-11 13:34:42 +0000
URL:       https://git.openjdk.java.net/loom/commit/0d80f6cf82ddab85f2461c7cc663a93bb222e988

8274379: Allow process of unsafe access errors in check_special_condition_for_native_trans

Reviewed-by: rehn, dholmes

! src/hotspot/share/prims/jvm.cpp
! src/hotspot/share/prims/jvmtiEnv.cpp
! src/hotspot/share/runtime/safepoint.hpp
! src/hotspot/share/runtime/thread.cpp
! src/hotspot/share/runtime/thread.hpp
! src/hotspot/share/runtime/thread.inline.hpp
! src/hotspot/share/runtime/vmStructs.cpp

Changeset: 3f073377
Author:    Zhengyu Gu <zgu at openjdk.org>
Date:      2021-10-11 15:10:57 +0000
URL:       https://git.openjdk.java.net/loom/commit/3f07337722a0c8c6b452a44745598268d67c0864

8273614: Shenandoah: intermittent timeout with ConcurrentGCBreakpoint tests

Reviewed-by: shade

! src/hotspot/share/gc/shenandoah/shenandoahConcurrentGC.cpp

Changeset: 3f01d03a
Author:    Lin Zang <lzang at openjdk.org>
Date:      2021-10-11 15:27:28 +0000
URL:       https://git.openjdk.java.net/loom/commit/3f01d03a10cb3f647735ed4bbea1768ff18bf8f2

8275021: Test serviceability/sa/TestJmapCore.java fails with: java.io.IOException: Stack frame 0x4 not found

Reviewed-by: dholmes, dcubed

! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/utilities/HeapHprofBinWriter.java

Changeset: 83c37719
Author:    Thomas Stuefe <stuefe at openjdk.org>
Date:      2021-10-11 15:48:10 +0000
URL:       https://git.openjdk.java.net/loom/commit/83c37719290039672cf261701028c8eb044a2e77

8273881: Metaspace: test repeated deallocations

Reviewed-by: dholmes, shade

! test/hotspot/gtest/metaspace/test_metaspacearena.cpp

Changeset: 75f5145e
Author:    Zhengyu Gu <zgu at openjdk.org>
Date:      2021-10-11 16:58:53 +0000
URL:       https://git.openjdk.java.net/loom/commit/75f5145e21a1320c1a08080af861497ce7c3f266

8274925: Shenandoah: shenandoah/TestAllocHumongousFragment.java test failed on lock rank check

Reviewed-by: shade

! src/hotspot/share/gc/shenandoah/shenandoahControlThread.cpp

Changeset: 829dea45
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Pankaj Bansal <pbansal at openjdk.org>
Date:      2021-10-11 19:19:39 +0000
URL:       https://git.openjdk.java.net/loom/commit/829dea45c9ab90518f03a66aad7e681cd4fda8b3

8274945: Cleanup unnecessary calls to Throwable.initCause() in java.desktop

Reviewed-by: jdv, serb, pbansal

! src/java.desktop/share/classes/com/sun/imageio/plugins/jpeg/MarkerSegment.java
! src/java.desktop/share/classes/javax/imageio/metadata/IIOMetadata.java
! src/java.desktop/share/classes/javax/imageio/spi/ImageReaderWriterSpi.java
! src/java.desktop/share/classes/sun/awt/datatransfer/TransferableProxy.java

Changeset: dd93c6e2
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-12 00:14:00 +0000
URL:       https://git.openjdk.java.net/loom/commit/dd93c6e27b66acebb221583fd28d03c65bfc1f24

8272167: AbsPathsInImage.java should skip *.dSYM directories

Reviewed-by: ihse, erikj

! test/jdk/build/AbsPathsInImage.java

Changeset: 1e306959
Author:    Hamlin Li <mli at openjdk.org>
Date:      2021-10-12 01:25:00 +0000
URL:       https://git.openjdk.java.net/loom/commit/1e3069593e6f56714e1ee557b70930c2749d820c

8274466: G1: use field directly rather than method in G1CollectorState::in_mixed_phase

Reviewed-by: ayang, sjohanss

! src/hotspot/share/gc/g1/g1CollectorState.hpp

Changeset: ef0922e8
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-10-12 05:56:15 +0000
URL:       https://git.openjdk.java.net/loom/commit/ef0922e88528bdf4fe75537ddf4e82123e3f58b3

8274560: JFR: Add test for OldObjectSample event when using Shenandoah

Reviewed-by: mgronlun

! test/jdk/jdk/jfr/event/oldobject/TestObjectDescription.java
+ test/jdk/jdk/jfr/event/oldobject/TestShenandoah.java

Changeset: a5f09d10
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-10-12 06:22:13 +0000
URL:       https://git.openjdk.java.net/loom/commit/a5f09d1088d9dd610139370739e9fbd6e34416cb

8275031: runtime/ErrorHandling/MachCodeFramesInErrorFile.java fails when hsdis is present

Reviewed-by: dholmes, dnsimon

! src/hotspot/share/code/nmethod.cpp
! test/hotspot/jtreg/runtime/ErrorHandling/MachCodeFramesInErrorFile.java

Changeset: cfe7471f
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-10-12 07:24:15 +0000
URL:       https://git.openjdk.java.net/loom/commit/cfe7471f1769eca2a4e623f5ba9cddceb005f0bf

8177814: jdk/editpad is not in jdk TEST.groups

Reviewed-by: serb

! test/jdk/TEST.groups

Changeset: 7d2633f7
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Pavel Rappo <prappo at openjdk.org>
Date:      2021-10-12 09:37:54 +0000
URL:       https://git.openjdk.java.net/loom/commit/7d2633f795c27edc2dfbbd7a9d9e44bdb23ec6a1

8275002: Remove unused AbstractStringBuilder.MAX_ARRAY_SIZE

Reviewed-by: prappo, jlaskey, martin

! src/java.base/share/classes/java/lang/AbstractStringBuilder.java

Changeset: 8de26361
Author:    Kim Barrett <kbarrett at openjdk.org>
Date:      2021-10-12 09:40:35 +0000
URL:       https://git.openjdk.java.net/loom/commit/8de26361f7d789c7b317536198c891756038a8ea

8274615: Support relaxed atomic add for linux-aarch64

Reviewed-by: aph, dholmes

! src/hotspot/cpu/aarch64/atomic_aarch64.hpp
! src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp
! src/hotspot/os_cpu/linux_aarch64/atomic_linux_aarch64.S
! src/hotspot/os_cpu/linux_aarch64/atomic_linux_aarch64.hpp

Changeset: 33050f80
Author:    Doug Simon <dnsimon at openjdk.org>
Date:      2021-10-12 09:49:50 +0000
URL:       https://git.openjdk.java.net/loom/commit/33050f8013366f5e3a01ab1a75ba3fee9cc73089

8274986: max code printed in hs-err logs should be configurable

Reviewed-by: never, dholmes

! src/hotspot/share/code/codeBlob.cpp
! src/hotspot/share/runtime/flags/jvmFlagLimit.cpp
! src/hotspot/share/runtime/globals.hpp
! src/hotspot/share/utilities/vmError.cpp
! src/hotspot/share/utilities/vmError.hpp
! test/hotspot/jtreg/runtime/ErrorHandling/MachCodeFramesInErrorFile.java

Changeset: d04d4ee2
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Daniel Fuchs <dfuchs at openjdk.org>
Date:      2021-10-12 11:14:31 +0000
URL:       https://git.openjdk.java.net/loom/commit/d04d4ee2c193baf4339ee3025e3fbcd31d62f484

8274894: Use Optional.empty() instead of ofNullable(null) in HttpResponse.BodySubscribers.discarding

Reviewed-by: dfuchs

! src/java.net.http/share/classes/java/net/http/HttpResponse.java

Changeset: b460d6dd
Author:    kabutz <heinz at javaspecialists.eu>
Committer: Markus Gr?nlund <mgronlun at openjdk.org>
Date:      2021-10-12 11:38:21 +0000
URL:       https://git.openjdk.java.net/loom/commit/b460d6ddafcd1be76bcf407254f843df6bbfb70b

8275091: /src/jdk.management.jfr/share/classes/module-info.java has non-canonical order

Reviewed-by: mgronlun

! src/jdk.management.jfr/share/classes/module-info.java

Changeset: 1ab64143
Author:    Zhengyu Gu <zgu at openjdk.org>
Date:      2021-10-12 11:58:35 +0000
URL:       https://git.openjdk.java.net/loom/commit/1ab64143c06e33e23172dd77c39e434443347364

8275051: Shenandoah: Correct ordering of requested gc cause and gc request flag

Reviewed-by: shade

! src/hotspot/share/gc/shenandoah/shenandoahControlThread.cpp

Changeset: e16b93ad
Author:    Martin Doerr <mdoerr at openjdk.org>
Date:      2021-10-12 12:18:49 +0000
URL:       https://git.openjdk.java.net/loom/commit/e16b93ad52c96fddd9097c2cb0fa78ae781c547b

8274770: [PPC64] resolve_jobject needs a generic implementation to support load barriers

Reviewed-by: goetz, nradomski

! src/hotspot/cpu/ppc/gc/shared/barrierSetAssembler_ppc.cpp
! src/hotspot/cpu/ppc/gc/shared/modRefBarrierSetAssembler_ppc.cpp
! src/hotspot/cpu/ppc/gc/shared/modRefBarrierSetAssembler_ppc.hpp

Changeset: e393c5ea
Author:    Roman Kennke <rkennke at openjdk.org>
Date:      2021-10-12 13:16:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/e393c5ea9d9a254cdacbd311498c55c560e8ab25

8275074: Cleanup unused code in JFR LeakProfiler

Reviewed-by: mgronlun

! src/hotspot/share/jfr/leakprofiler/chains/edgeUtils.cpp
! src/hotspot/share/jfr/leakprofiler/chains/edgeUtils.hpp
- src/hotspot/share/jfr/leakprofiler/utilities/saveRestore.cpp
- src/hotspot/share/jfr/leakprofiler/utilities/saveRestore.hpp

Changeset: f6234606
Author:    Christian Hagedorn <chagedorn at openjdk.org>
Date:      2021-10-12 13:21:35 +0000
URL:       https://git.openjdk.java.net/loom/commit/f62346066869b681d1cc9f63775393b11a48722a

8274911: testlibrary_tests/ir_framework/tests/TestIRMatching.java fails with "java.lang.RuntimeException: Should have thrown exception"

Reviewed-by: kvn, thartmann

! test/hotspot/jtreg/compiler/lib/ir_framework/driver/IRMatcher.java
! test/hotspot/jtreg/testlibrary_tests/ir_framework/tests/TestIRMatching.java
! test/hotspot/jtreg/testlibrary_tests/ir_framework/tests/TestRunTests.java
! test/hotspot/jtreg/testlibrary_tests/ir_framework/tests/Utils.java

Changeset: 07b1f1c2
Author:    Brian Burkhalter <bpb at openjdk.org>
Date:      2021-10-12 15:25:53 +0000
URL:       https://git.openjdk.java.net/loom/commit/07b1f1c282ee0a7df6a6b0f240962a032ea3a413

8274548: (fc) FileChannel gathering write fails with IOException "Invalid argument" on macOS 11.6

Reviewed-by: alanb

! src/java.base/share/classes/sun/nio/ch/IOUtil.java
! src/java.base/unix/native/libnio/ch/IOUtil.c
! src/java.base/windows/native/libnio/ch/IOUtil.c
+ test/jdk/java/nio/channels/FileChannel/LargeGatheringWrite.java

Changeset: 89999f70
Author:    Dmitry Batrak <dbatrak at openjdk.org>
Date:      2021-10-12 15:36:41 +0000
URL:       https://git.openjdk.java.net/loom/commit/89999f70e06b41704c7c5b0f9a19582f90806a10

8275131: Exceptions after a touchpad gesture on macOS

Reviewed-by: dmarkov, prr

! src/java.desktop/macosx/native/libawt_lwawt/awt/AWTWindow.m

Changeset: b8bd259b
Author:    Evgeny Astigeevich <eastig at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2021-10-12 16:56:06 +0000
URL:       https://git.openjdk.java.net/loom/commit/b8bd259bb83096f8727222a4e5cd84e80e096275

8271737: Only normalize the cached user.dir property once

Reviewed-by: phh

! src/java.base/windows/classes/java/io/WinNTFileSystem.java

Changeset: 8657f776
Author:    Daniel D. Daugherty <dcubed at openjdk.org>
Date:      2021-10-12 17:05:47 +0000
URL:       https://git.openjdk.java.net/loom/commit/8657f77608f37d7ff5254032858f2f16c7c204d5

8271514: support JFR use of new ThreadsList::Iterator

Co-authored-by: Kim Barrett <kbarrett at openjdk.org>
Reviewed-by: sspitsyn, mgronlun

! src/hotspot/share/jfr/utilities/jfrThreadIterator.cpp
! src/hotspot/share/jfr/utilities/jfrThreadIterator.hpp

Changeset: 124f8237
Author:    Sergey Tsypanov <sergei.tsypanov at yandex.ru>
Committer: Sergey Bylokhov <serb at openjdk.org>
Date:      2021-10-12 19:13:17 +0000
URL:       https://git.openjdk.java.net/loom/commit/124f82377ba93359bc59118ee315ba194080fa92

8268764: Use Long.hashCode() instead of int-cast where applicable

Reviewed-by: kevinw, prr, kizune, serb

! src/java.desktop/share/classes/com/sun/media/sound/DLSSoundbank.java
! src/java.desktop/share/classes/com/sun/media/sound/WaveExtensibleFileReader.java
! src/java.rmi/share/classes/java/rmi/server/ObjID.java
! src/jdk.internal.vm.ci/share/classes/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/FieldImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/MethodImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/ObjectReferenceImpl.java
! src/jdk.jdi/share/classes/com/sun/tools/jdi/ReferenceTypeImpl.java
! src/jdk.security.auth/share/classes/com/sun/security/auth/NTNumericCredential.java

Changeset: 03c2b73e
Author:    Magnus Ihse Bursie <ihse at openjdk.org>
Date:      2021-10-12 23:28:53 +0000
URL:       https://git.openjdk.java.net/loom/commit/03c2b73e2112cdbcbd1230009de0a15a9bd31815

8275128: Build hsdis using normal build system

Reviewed-by: erikj

+ make/Hsdis.gmk
! make/Main.gmk
! make/autoconf/configure.ac
! make/autoconf/help.m4
! make/autoconf/jdk-options.m4
! make/autoconf/spec.gmk.in
! src/utils/hsdis/README
- src/utils/hsdis/hsdis-demo.c

Changeset: b1b83500
Author:    Daniel D. Daugherty <dcubed at openjdk.org>
Date:      2021-10-12 23:43:40 +0000
URL:       https://git.openjdk.java.net/loom/commit/b1b83500a9c3a74bf39894e49eefd031d208b9b9

8275171: ProblemList compiler/codegen/aes/TestAESMain.java on linux-x64 and windows-x64 in -Xcomp mode

Reviewed-by: iignatyev

! test/hotspot/jtreg/ProblemList-Xcomp.txt

Changeset: ab34cced
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2021-10-13 05:26:33 +0000
URL:       https://git.openjdk.java.net/loom/commit/ab34cced3beae765fe9d6b6acfef7e6a7f3082cd

8275186: Suppress warnings on non-serializable array component types in xml

Reviewed-by: joehw

! src/java.xml/share/classes/com/sun/org/apache/bcel/internal/generic/TargetLostException.java
! src/java.xml/share/classes/com/sun/org/apache/xerces/internal/impl/dv/DatatypeException.java
! src/java.xml/share/classes/com/sun/org/apache/xerces/internal/impl/io/MalformedByteSequenceException.java
! src/java.xml/share/classes/com/sun/org/apache/xerces/internal/impl/xs/XMLSchemaException.java
! src/java.xml/share/classes/com/sun/org/apache/xerces/internal/impl/xs/traversers/XSDComplexTypeTraverser.java
! src/java.xml/share/classes/com/sun/org/apache/xpath/internal/axes/UnionPathIterator.java

Changeset: cf828673
Author:    Martin Doerr <mdoerr at openjdk.org>
Date:      2021-10-13 07:12:52 +0000
URL:       https://git.openjdk.java.net/loom/commit/cf828673a9b76fd3f26db9a3f714166861a65c9e

8275049: [ZGC] missing null check in ZNMethod::log_register

Reviewed-by: nradomski, eosterlund, pliden

! src/hotspot/share/gc/z/zNMethod.cpp

Changeset: 337b73a4
Author:    Niklas Radomski <nradomski at openjdk.org>
Committer: Martin Doerr <mdoerr at openjdk.org>
Date:      2021-10-13 07:36:52 +0000
URL:       https://git.openjdk.java.net/loom/commit/337b73a459ba24aa529b7b097617434be1d0030e

8274851: [PPC64] Port zgc to linux on ppc64le

Reviewed-by: ihse, pliden, mdoerr, eosterlund

! make/autoconf/jvm-features.m4
! make/hotspot/gensrc/GensrcAdlc.gmk
! src/hotspot/cpu/ppc/assembler_ppc.hpp
+ src/hotspot/cpu/ppc/gc/z/zBarrierSetAssembler_ppc.cpp
+ src/hotspot/cpu/ppc/gc/z/zBarrierSetAssembler_ppc.hpp
+ src/hotspot/cpu/ppc/gc/z/zGlobals_ppc.cpp
+ src/hotspot/cpu/ppc/gc/z/zGlobals_ppc.hpp
+ src/hotspot/cpu/ppc/gc/z/z_ppc.ad
! src/hotspot/cpu/ppc/ppc.ad
! src/hotspot/cpu/ppc/vmreg_ppc.hpp
+ src/hotspot/os_cpu/linux_ppc/gc/z/zSyscall_linux_ppc.hpp

Changeset: c3b75c6c
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2021-10-13 08:10:55 +0000
URL:       https://git.openjdk.java.net/loom/commit/c3b75c6cdf03ffa3c887bf3db29e17668b228f79

8274516: [REDO] JDK-8271880: Tighten condition for excluding regions from collecting cards with cross-references

Reviewed-by: sjohanss, ayang

! src/hotspot/share/gc/g1/g1CollectedHeap.cpp
! src/hotspot/share/gc/g1/g1CollectedHeap.hpp
! src/hotspot/share/gc/g1/g1CollectedHeap.inline.hpp
! src/hotspot/share/gc/g1/g1EvacFailure.cpp
! src/hotspot/share/gc/g1/g1EvacFailure.hpp
! src/hotspot/share/gc/g1/g1HeapRegionAttr.hpp
! src/hotspot/share/gc/g1/g1OopClosures.hpp
! src/hotspot/share/gc/g1/g1ParScanThreadState.cpp
! src/hotspot/share/gc/g1/g1ParScanThreadState.hpp
! src/hotspot/share/gc/g1/g1ParScanThreadState.inline.hpp
! src/hotspot/share/gc/g1/g1YoungCollector.cpp
! src/hotspot/share/gc/g1/g1YoungCollector.hpp
! src/hotspot/share/gc/g1/g1YoungGCPostEvacuateTasks.cpp
! src/hotspot/share/gc/g1/g1YoungGCPostEvacuateTasks.hpp
! src/hotspot/share/gc/shared/referenceProcessor.cpp
! src/hotspot/share/gc/shared/referenceProcessor.hpp

Changeset: dcf428c7
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Serguei Spitsyn <sspitsyn at openjdk.org>
Date:      2021-10-13 09:07:07 +0000
URL:       https://git.openjdk.java.net/loom/commit/dcf428c7a74e568deaededfc11d3c4e1bf7821f2

8275075: Remove unnecessary conversion to String in jdk.hotspot.agent

Reviewed-by: sspitsyn, cjplummer

! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/HSDB.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/interpreter/BytecodeLoadConstant.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/PerfDataEntry.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/ui/classbrowser/HTMLGenerator.java

Changeset: b8cb76ad
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2021-10-13 10:15:54 +0000
URL:       https://git.openjdk.java.net/loom/commit/b8cb76ad210cb3e7524c7f5b13cfe57746ac05d4

8273682: Upgrade Jline to 3.20.0

Reviewed-by: sundar

! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/Candidate.java
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/CompletionMatcher.java
- src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/ConfigurationPath.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/EndOfFileException.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/LineReader.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/LineReaderBuilder.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/Parser.java
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/PrintAboveWriter.java
- src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/ScriptEngine.java
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/impl/CompletionMatcherImpl.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/impl/DefaultHighlighter.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/impl/DefaultParser.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/impl/LineReaderImpl.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/impl/ReaderUtils.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/impl/completer/StringsCompleter.java
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/impl/completer/SystemCompleter.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/reader/impl/history/DefaultHistory.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/terminal/Terminal.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/terminal/TerminalBuilder.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/terminal/impl/AbstractTerminal.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/terminal/impl/AbstractWindowsTerminal.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/terminal/spi/JansiSupport.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/terminal/spi/JnaSupport.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/AttributedCharSequence.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/AttributedString.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/AttributedStringBuilder.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/AttributedStyle.java
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/ColorPalette.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/Colors.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/Curses.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/Display.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/InfoCmp.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/Log.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/NonBlockingPumpInputStream.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/NonBlockingPumpReader.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/PumpReader.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/Signals.java
! src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/StyleResolver.java
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/rxvt-basic.caps
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/rxvt-unicode-256color.caps
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/rxvt-unicode.caps
+ src/jdk.internal.le/share/classes/jdk/internal/org/jline/utils/rxvt.caps
! src/jdk.internal.le/share/legal/jline.md
! src/jdk.internal.le/windows/classes/jdk/internal/org/jline/terminal/impl/jna/JnaSupportImpl.java
! src/jdk.internal.le/windows/classes/jdk/internal/org/jline/terminal/impl/jna/win/JnaWinSysTerminal.java
! test/jdk/jdk/internal/jline/AbstractWindowsTerminalTest.java
! test/jdk/jdk/internal/jline/KeyConversionTest.java

Changeset: 5ffb5d10
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Pavel Rappo <prappo at openjdk.org>
Date:      2021-10-13 11:34:24 +0000
URL:       https://git.openjdk.java.net/loom/commit/5ffb5d100f3383f9afaf20c8a659971522153505

8272992: Replace usages of Collections.sort with List.sort call in jdk.* modules

Reviewed-by: cjplummer, prappo

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/ClassUseWriter.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/util/Group.java
! src/jdk.jcmd/share/classes/sun/tools/jstat/JStatLogger.java
! src/jdk.jcmd/share/classes/sun/tools/jstat/Jstat.java
! src/jdk.jconsole/share/classes/sun/tools/jconsole/inspector/XOpenTypeViewer.java

Changeset: 451a2965
Author:    Jie Fu <jiefu at openjdk.org>
Date:      2021-10-13 14:30:11 +0000
URL:       https://git.openjdk.java.net/loom/commit/451a296510994ff9fe1e0381900ffa9a8a1caa54

8275173: testlibrary_tests/ir_framework/tests/TestCheckedTests.java fails after JDK-8274911

Reviewed-by: chagedorn, thartmann

! test/hotspot/jtreg/testlibrary_tests/ir_framework/tests/TestCheckedTests.java

Changeset: d8f6b6c1
Author:    Fairoz Matte <fmatte at openjdk.org>
Committer: Ioi Lam <iklam at openjdk.org>
Date:      2021-10-13 15:38:36 +0000
URL:       https://git.openjdk.java.net/loom/commit/d8f6b6c19a591512ff4e956823cb87a83e088ae8

8274718: runtime/cds/appcds/LambdaEagerInit.java fails with -XX:-CompactStrings

Reviewed-by: iklam, ccheung

! test/hotspot/jtreg/runtime/cds/appcds/LambdaEagerInit.java


From shade at openjdk.java.net  Fri Oct 15 16:32:05 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Fri, 15 Oct 2021 16:32:05 GMT
Subject: Integrated: Harmonize actual and expected signature of
 Continuation.doYield
In-Reply-To: <pCb8LB_EgDl0iiBtL1OHlZFUz9aL9GksIMjhelOjy4w=.fabced03-cd83-424f-9f3e-5f45b48f9747@github.com>
References: <pCb8LB_EgDl0iiBtL1OHlZFUz9aL9GksIMjhelOjy4w=.fabced03-cd83-424f-9f3e-5f45b48f9747@github.com>
Message-ID: <eQiwFrGn-D9Maf9sfgr-EZnCHRKUqRwT6XWSmLiHqUs=.9478339e-f9fa-49e0-b612-55c229ca0a38@github.com>

On Thu, 14 Oct 2021 15:23:17 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Found this inconsistency when reading the Loom code during x86_32 porting. `Continuation.doYield` has an `int` argument, yet C2's `OptoRuntime::continuation_doYield_Type` does not declare it. I think this is basically asking for trouble in C2, as the optimizations may ask the function type, discover there is an input of type `int`, but no such input is actually present. Runtime stubs seem to be also oblivious there is an argument, and calling conventions probably put it in the register on x86_64 and AArch64. On other arches, that might not be true.
> 
> I don't believe it breaks anything now, but let's fix it, while we are at it. It looks to me that `Continuation.doYield` is ever called with `0`, so we might just drop its `int` argument? Not sure if `scopes` is something Java code plans to use.
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug, `jdk_loom hotspot_loom`

This pull request has now been integrated.

Changeset: 0ca7be1c
Author:    Aleksey Shipilev <shade at openjdk.org>
Committer: Ron Pressler <rpressler at openjdk.org>
URL:       https://git.openjdk.java.net/loom/commit/0ca7be1c4434170bf96d65b1e67ddc07298fd357
Stats:     12 lines in 5 files changed: 2 ins; 4 del; 6 mod

Harmonize actual and expected signature of Continuation.doYield

Reviewed-by: rpressler

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

PR: https://git.openjdk.java.net/loom/pull/78

From rpressler at openjdk.java.net  Fri Oct 15 16:33:00 2021
From: rpressler at openjdk.java.net (Ron Pressler)
Date: Fri, 15 Oct 2021 16:33:00 GMT
Subject: RFR: Remove -XX:ContPerfTest
In-Reply-To: <g0H1FzT1ShiHFBd7Fmy46uH4pK3Rctdoig9JEN334B0=.131b2d6c-f39f-4bb7-a41c-0d7c856518d9@github.com>
References: <g0H1FzT1ShiHFBd7Fmy46uH4pK3Rctdoig9JEN334B0=.131b2d6c-f39f-4bb7-a41c-0d7c856518d9@github.com>
Message-ID: <fyQ0UT95-mAUzkrzoJ2Pkzww1tkSLsAQhXSiEgll5kA=.d0440d94-1375-4fc7-870b-113b1e79749a@github.com>

On Thu, 14 Oct 2021 14:09:46 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> When porting to x86_32, I noticed there is a diagnostic `ContPerfTest` option which effectively takes different paths, depending on diagnostic setting. Is it still useful? For a cleanup/preparation-for-upstreaming, I propose we roll it back.
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug `jdk_loom hotspot_loom`

You can leave it open.

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

PR: https://git.openjdk.java.net/loom/pull/76

From rpressler at openjdk.java.net  Fri Oct 15 16:33:03 2021
From: rpressler at openjdk.java.net (Ron Pressler)
Date: Fri, 15 Oct 2021 16:33:03 GMT
Subject: RFR: Drop x86_32 code from x86_64-specific files
In-Reply-To: <IWceRB56-EmHKusTMEi0SZc4PZkOzmZaKVX1JVz9mY4=.a11ee310-ad96-4c14-9898-803db32868c6@github.com>
References: <IWceRB56-EmHKusTMEi0SZc4PZkOzmZaKVX1JVz9mY4=.a11ee310-ad96-4c14-9898-803db32868c6@github.com>
Message-ID: <XZu0MPaymiOMsb0MdMoaW31-ZyDzzxuzplwCXTykrSI=.cb342009-843a-4688-9077-fc76cce2ea9e@github.com>

On Thu, 14 Oct 2021 14:29:00 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> There are instances of x86_32 code in x86_64-specific files. That code would not be ever used and thus would bit rot, as it would never be compiled on x86_32. The porting to x86_32 would make the x86_32-specific versions of the StubGenerator. This simplifies x86_64 StubGenerator a bit.
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug `jdk_loom hotspot_loom`

Nice!

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

Marked as reviewed by rpressler (Lead).

PR: https://git.openjdk.java.net/loom/pull/77

From shade at openjdk.java.net  Fri Oct 15 17:15:01 2021
From: shade at openjdk.java.net (Aleksey Shipilev)
Date: Fri, 15 Oct 2021 17:15:01 GMT
Subject: Integrated: Drop x86_32 code from x86_64-specific files
In-Reply-To: <IWceRB56-EmHKusTMEi0SZc4PZkOzmZaKVX1JVz9mY4=.a11ee310-ad96-4c14-9898-803db32868c6@github.com>
References: <IWceRB56-EmHKusTMEi0SZc4PZkOzmZaKVX1JVz9mY4=.a11ee310-ad96-4c14-9898-803db32868c6@github.com>
Message-ID: <mLhiAI-U6dYf6vrfCGOYqRgBTqq4ykTMhuZufgeuc0s=.8bf2b2b3-9ac2-4fba-a412-9f2e8a3555ba@github.com>

On Thu, 14 Oct 2021 14:29:00 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> There are instances of x86_32 code in x86_64-specific files. That code would not be ever used and thus would bit rot, as it would never be compiled on x86_32. The porting to x86_32 would make the x86_32-specific versions of the StubGenerator. This simplifies x86_64 StubGenerator a bit.
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug `jdk_loom hotspot_loom`

This pull request has now been integrated.

Changeset: 70824a1e
Author:    Aleksey Shipilev <shade at openjdk.org>
Committer: Ron Pressler <rpressler at openjdk.org>
URL:       https://git.openjdk.java.net/loom/commit/70824a1ecd4c736de8377e911cf5305192afe021
Stats:     32 lines in 1 file changed: 0 ins; 16 del; 16 mod

Drop x86_32 code from x86_64-specific files

Reviewed-by: rpressler

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

PR: https://git.openjdk.java.net/loom/pull/77

From alanb at openjdk.java.net  Sun Oct 17 19:05:06 2021
From: alanb at openjdk.java.net (Alan Bateman)
Date: Sun, 17 Oct 2021 19:05:06 GMT
Subject: RFR: avoid extra park of vthread when using fixed thread pool [v2]
In-Reply-To: <xk_WCUxC9rhvr7xh-cGvm7GtgaU1iQpgr_1W7Ry0LMk=.cfd26e50-d724-4fad-971c-2f1412fb5306@github.com>
References: <XKEunw5XR2XQRWzG5A-UiPjNzWL-OBSgoUy9lbWiZNo=.a1303dc8-c23b-44f7-afc9-0f20632b6d49@github.com>
 <qlr5L_gRk0tc020ENTvrBolYbAZxMZfP6rFi-b9AJF8=.25c0209f-7a3c-4b2d-9a0f-1f589ec04fba@github.com>
 <g4GSV6PZllSo9bZiPpVD4knsuQJJM3gdmF4edEo2_Dg=.eee01b53-c10e-4dc9-84a2-d18c3d42bdb6@github.com>
 <xk_WCUxC9rhvr7xh-cGvm7GtgaU1iQpgr_1W7Ry0LMk=.cfd26e50-d724-4fad-971c-2f1412fb5306@github.com>
Message-ID: <bXjtSvciz_Hk5fkY30y68B94AD2bXFlcV87V_BKQwls=.70488281-2924-4abb-9beb-266f058fac55@github.com>

On Mon, 30 Aug 2021 12:03:23 GMT, Miao Zheng <duke at openjdk.java.net> wrote:

>> The CustomScheduler test was indeed failing with this change but it's due to a test issue where it runs the scheduler tasks on the current thread. I've remove that case from the test so I think we are good to go now.
>
> @AlanBateman Thanks for your review.

@miao-zheng The copyright header on the test is causing problems for a script that checks the copyright header on files. It doesn't seem to match the headers on files contributed by THL A29 Limited or Tencent. Can you check this?

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

PR: https://git.openjdk.java.net/loom/pull/59

From augustnagro at gmail.com  Mon Oct 18 03:14:33 2021
From: augustnagro at gmail.com (August Nagro)
Date: Sun, 17 Oct 2021 20:14:33 -0700
Subject: Async-Await in Vertx with Project Loom
Message-ID: <CAHNb0ZN9+9HDNfgXj63+hFkW6Us+3d3TQFGu8aX2fyOxGUiLmw@mail.gmail.com>

Hello; I recently implemented async/await in Vertx using Project Loom.

Feedback and code review are very welcome. The project is only about 100
lines of code. Hopefully something similar could be merged into
`vertx-core` when Loom is released.

https://github.com/AugustNagro/vertx-loom

Cheers,

August

From duke at openjdk.java.net  Mon Oct 18 03:33:22 2021
From: duke at openjdk.java.net (Miao Zheng)
Date: Mon, 18 Oct 2021 03:33:22 GMT
Subject: RFR: Fix problem of copyright header
Message-ID: <0gghc3KtzKUDDkmGLyvtRtPXmvKD8aEeHpCKS6fGrf4=.d0a05797-cfb5-4ad6-b266-f6bbfc681c8e@github.com>

The copyright of this test case have some problems, I try to fix this.

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

Commit messages:
 - Fix problem of copyright header

Changes: https://git.openjdk.java.net/loom/pull/79/files
 Webrev: https://webrevs.openjdk.java.net/?repo=loom&pr=79&range=00
  Stats: 18 lines in 1 file changed: 4 ins; 3 del; 11 mod
  Patch: https://git.openjdk.java.net/loom/pull/79.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/79/head:pull/79

PR: https://git.openjdk.java.net/loom/pull/79

From duke at openjdk.java.net  Mon Oct 18 03:34:08 2021
From: duke at openjdk.java.net (Miao Zheng)
Date: Mon, 18 Oct 2021 03:34:08 GMT
Subject: RFR: avoid extra park of vthread when using fixed thread pool [v2]
In-Reply-To: <qlr5L_gRk0tc020ENTvrBolYbAZxMZfP6rFi-b9AJF8=.25c0209f-7a3c-4b2d-9a0f-1f589ec04fba@github.com>
References: <XKEunw5XR2XQRWzG5A-UiPjNzWL-OBSgoUy9lbWiZNo=.a1303dc8-c23b-44f7-afc9-0f20632b6d49@github.com>
 <qlr5L_gRk0tc020ENTvrBolYbAZxMZfP6rFi-b9AJF8=.25c0209f-7a3c-4b2d-9a0f-1f589ec04fba@github.com>
Message-ID: <1xcBQYV1r0T9BsLi2dJe2KzvLvjsSXEfsJmHF-RLOTA=.9af1623a-12cc-4a90-8b07-9d52d016448d@github.com>

On Thu, 26 Aug 2021 11:00:58 GMT, Miao Zheng <duke at openjdk.java.net> wrote:

>> The test case of ParkWithFixedThreadPool.java create 300 virtual threads, each vthread(exclude latest vthread) park itself and unpark previous vthread. The expected result is any vthread can finish.
>> 
>> Running this test case in slowdebug and the test will random hang.
>> 
>> There are three vthreads which are vt-1, vt-2, vt-3;
>> (1) vt-1 take the ReentrantLock, and vt-2 try to unpark vt-1, and vt-2 fail to get ReentrantLock so it park itself( the call stack is shown below); 
>> (2)vt-3 unpark vt-2, and vt-2 try to get ReentrantLock again, but the ReentrantLock is still owned by vt-1, vt-2 park itself again;
>> (3)vt-1 release the ReentrantLock and unpark vt-2, vt-2 park itself at ParkWithFixedThreadPool.java:55, and it will never unpark.(because the unpark from vt-3 has consumed)
>> 
>> The reason is scheduler.execute() will try to alloc a Reentrant lock when using fix thread pool, the call stack is like:
>>     at java.lang.VirtualThread.tryPark(VirtualThread.java:472)
>>     at java.lang.VirtualThread.park(VirtualThread.java:424)
>>     at java.lang.System$2.parkVirtualThread(System.java:1279)
>>     at sun.misc.VirtualThreads.park(VirtualThreads.java:56)
>>     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:183)
>>     at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
>>     at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870)
>>     at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199)
>>     at java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209)
>>     at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285)
>>     at java.util.concurrent.LinkedBlockingQueue.offer(LinkedBlockingQueue.java:418)
>>     at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1371)
>>     at java.lang.VirtualThread.unpark(VirtualThread.java:502)
>>     at java.lang.System$2.unparkVirtualThread(System.java:1287)
>>     at sun.misc.VirtualThreads.unpark(VirtualThreads.java:70)
>>     at ParkWithFixedThreadPool$1.run(ParkWithFixedThreadPool.java:51)
>> 
>> 
>> The solution is switch back to carrier thread before call scheduler.execute();
>
> Miao Zheng has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR.

Sorry for this problem, I have create a new PR to fix the problem.

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

PR: https://git.openjdk.java.net/loom/pull/59

From alanb at openjdk.java.net  Mon Oct 18 05:54:56 2021
From: alanb at openjdk.java.net (Alan Bateman)
Date: Mon, 18 Oct 2021 05:54:56 GMT
Subject: RFR: Fix problem of copyright header
In-Reply-To: <0gghc3KtzKUDDkmGLyvtRtPXmvKD8aEeHpCKS6fGrf4=.d0a05797-cfb5-4ad6-b266-f6bbfc681c8e@github.com>
References: <0gghc3KtzKUDDkmGLyvtRtPXmvKD8aEeHpCKS6fGrf4=.d0a05797-cfb5-4ad6-b266-f6bbfc681c8e@github.com>
Message-ID: <HrtsFIDtzm87dO4CW0DLkkFe7YgPfVtr-o9ttEEnLio=.20835bc0-25ed-4035-9720-85d7f057b8bc@github.com>

On Mon, 18 Oct 2021 03:27:26 GMT, Miao Zheng <duke at openjdk.java.net> wrote:

> The copyright of this test case have some problems, I try to fix this.

Thanks for this.

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

Marked as reviewed by alanb (Committer).

PR: https://git.openjdk.java.net/loom/pull/79

From duke at openjdk.java.net  Mon Oct 18 06:04:32 2021
From: duke at openjdk.java.net (duke)
Date: Mon, 18 Oct 2021 06:04:32 GMT
Subject: git: openjdk/loom: fibers: Fix copyright header
Message-ID: <d551af97-1ffe-4cd9-abc0-6f916f971e98@openjdk.java.net>

Changeset: e3e10b2d
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-18 06:52:09 +0000
URL:       https://git.openjdk.java.net/loom/commit/e3e10b2d865554007204cb30bc21684488a2d55d

Fix copyright header

! src/hotspot/cpu/arm/continuation_arm.inline.hpp
! src/hotspot/cpu/ppc/continuation_ppc.inline.hpp
! src/hotspot/cpu/s390/continuation_s390.inline.hpp
! src/hotspot/cpu/zero/continuation_zero.inline.hpp


From forax at univ-mlv.fr  Mon Oct 18 06:20:06 2021
From: forax at univ-mlv.fr (Remi Forax)
Date: Mon, 18 Oct 2021 08:20:06 +0200 (CEST)
Subject: Async-Await in Vertx with Project Loom
In-Reply-To: <CAHNb0ZN9+9HDNfgXj63+hFkW6Us+3d3TQFGu8aX2fyOxGUiLmw@mail.gmail.com>
References: <CAHNb0ZN9+9HDNfgXj63+hFkW6Us+3d3TQFGu8aX2fyOxGUiLmw@mail.gmail.com>
Message-ID: <1696490001.29025.1634538006212.JavaMail.zimbra@u-pem.fr>

----- Original Message -----
> From: "August Nagro" <augustnagro at gmail.com>
> To: vertx-dev at googlegroups.com, vertx at googlegroups.com, "loom-dev" <loom-dev at openjdk.java.net>
> Sent: Lundi 18 Octobre 2021 05:14:33
> Subject: Async-Await in Vertx with Project Loom

> Hello; I recently implemented async/await in Vertx using Project Loom.
> 
> Feedback and code review are very welcome. The project is only about 100
> lines of code. Hopefully something similar could be merged into
> `vertx-core` when Loom is released.
> 
> https://github.com/AugustNagro/vertx-loom

nice,
but you have the same issue that i have with my re-implementation of Erlang message dispatch,
the class Continuation is not visible anymore (it has been moved to jdk.internal).

> 
> Cheers,
> 
> August

R?mi

From duke at openjdk.java.net  Mon Oct 18 07:19:03 2021
From: duke at openjdk.java.net (Miao Zheng)
Date: Mon, 18 Oct 2021 07:19:03 GMT
Subject: Integrated: Fix problem of copyright header
In-Reply-To: <0gghc3KtzKUDDkmGLyvtRtPXmvKD8aEeHpCKS6fGrf4=.d0a05797-cfb5-4ad6-b266-f6bbfc681c8e@github.com>
References: <0gghc3KtzKUDDkmGLyvtRtPXmvKD8aEeHpCKS6fGrf4=.d0a05797-cfb5-4ad6-b266-f6bbfc681c8e@github.com>
Message-ID: <5u0Z7Aiu_3mU2Ik4OEn08DaEKFUhi-rHd6xLS6w8yCI=.5986ad25-ca88-4522-a97e-fd549caf0f23@github.com>

On Mon, 18 Oct 2021 03:27:26 GMT, Miao Zheng <duke at openjdk.java.net> wrote:

> The copyright of this test case have some problems, I try to fix this.

This pull request has now been integrated.

Changeset: 8c2a17f9
Author:    miao zheng <emoryzheng at tencent.com>
Committer: Alan Bateman <alanb at openjdk.org>
URL:       https://git.openjdk.java.net/loom/commit/8c2a17f93e44be762bf4550bf17434f5c9c0a442
Stats:     18 lines in 1 file changed: 4 ins; 3 del; 11 mod

Fix problem of copyright header

Reviewed-by: alanb

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

PR: https://git.openjdk.java.net/loom/pull/79

From augustnagro at gmail.com  Mon Oct 18 13:40:24 2021
From: augustnagro at gmail.com (August Nagro)
Date: Mon, 18 Oct 2021 06:40:24 -0700
Subject: Async-Await in Vertx with Project Loom
In-Reply-To: <1696490001.29025.1634538006212.JavaMail.zimbra@u-pem.fr>
References: <CAHNb0ZN9+9HDNfgXj63+hFkW6Us+3d3TQFGu8aX2fyOxGUiLmw@mail.gmail.com>
 <1696490001.29025.1634538006212.JavaMail.zimbra@u-pem.fr>
Message-ID: <CAHNb0ZPeL51HK62rwjQRNy4ZQ+Z1GRLbOCH1BpDN6Fy-u4hmQQ@mail.gmail.com>

Thanks for the info.. that's a bummer. Is it a permanent API change?

On Sun, Oct 17, 2021, 11:20 PM Remi Forax <forax at univ-mlv.fr> wrote:

> ----- Original Message -----
> > From: "August Nagro" <augustnagro at gmail.com>
> > To: vertx-dev at googlegroups.com, vertx at googlegroups.com, "loom-dev" <
> loom-dev at openjdk.java.net>
> > Sent: Lundi 18 Octobre 2021 05:14:33
> > Subject: Async-Await in Vertx with Project Loom
>
> > Hello; I recently implemented async/await in Vertx using Project Loom.
> >
> > Feedback and code review are very welcome. The project is only about 100
> > lines of code. Hopefully something similar could be merged into
> > `vertx-core` when Loom is released.
> >
> > https://github.com/AugustNagro/vertx-loom
>
> nice,
> but you have the same issue that i have with my re-implementation of
> Erlang message dispatch,
> the class Continuation is not visible anymore (it has been moved to
> jdk.internal).
>
> >
> > Cheers,
> >
> > August
>
> R?mi
>

From dholmes at openjdk.java.net  Mon Oct 18 02:45:08 2021
From: dholmes at openjdk.java.net (David Holmes)
Date: Mon, 18 Oct 2021 02:45:08 GMT
Subject: RFR: avoid extra park of vthread when using fixed thread pool [v2]
In-Reply-To: <qlr5L_gRk0tc020ENTvrBolYbAZxMZfP6rFi-b9AJF8=.25c0209f-7a3c-4b2d-9a0f-1f589ec04fba@github.com>
References: <XKEunw5XR2XQRWzG5A-UiPjNzWL-OBSgoUy9lbWiZNo=.a1303dc8-c23b-44f7-afc9-0f20632b6d49@github.com>
 <qlr5L_gRk0tc020ENTvrBolYbAZxMZfP6rFi-b9AJF8=.25c0209f-7a3c-4b2d-9a0f-1f589ec04fba@github.com>
Message-ID: <q6HscDSD8LB2s1fFwmytDhLazs3vyUIH9uLPtjD_bMQ=.b0cbc3b3-7bbf-4ebc-9519-d2240a99ae57@github.com>

On Thu, 26 Aug 2021 11:00:58 GMT, Miao Zheng <duke at openjdk.java.net> wrote:

>> The test case of ParkWithFixedThreadPool.java create 300 virtual threads, each vthread(exclude latest vthread) park itself and unpark previous vthread. The expected result is any vthread can finish.
>> 
>> Running this test case in slowdebug and the test will random hang.
>> 
>> There are three vthreads which are vt-1, vt-2, vt-3;
>> (1) vt-1 take the ReentrantLock, and vt-2 try to unpark vt-1, and vt-2 fail to get ReentrantLock so it park itself( the call stack is shown below); 
>> (2)vt-3 unpark vt-2, and vt-2 try to get ReentrantLock again, but the ReentrantLock is still owned by vt-1, vt-2 park itself again;
>> (3)vt-1 release the ReentrantLock and unpark vt-2, vt-2 park itself at ParkWithFixedThreadPool.java:55, and it will never unpark.(because the unpark from vt-3 has consumed)
>> 
>> The reason is scheduler.execute() will try to alloc a Reentrant lock when using fix thread pool, the call stack is like:
>>     at java.lang.VirtualThread.tryPark(VirtualThread.java:472)
>>     at java.lang.VirtualThread.park(VirtualThread.java:424)
>>     at java.lang.System$2.parkVirtualThread(System.java:1279)
>>     at sun.misc.VirtualThreads.park(VirtualThreads.java:56)
>>     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:183)
>>     at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
>>     at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870)
>>     at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199)
>>     at java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209)
>>     at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285)
>>     at java.util.concurrent.LinkedBlockingQueue.offer(LinkedBlockingQueue.java:418)
>>     at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1371)
>>     at java.lang.VirtualThread.unpark(VirtualThread.java:502)
>>     at java.lang.System$2.unparkVirtualThread(System.java:1287)
>>     at sun.misc.VirtualThreads.unpark(VirtualThreads.java:70)
>>     at ParkWithFixedThreadPool$1.run(ParkWithFixedThreadPool.java:51)
>> 
>> 
>> The solution is switch back to carrier thread before call scheduler.execute();
>
> Miao Zheng has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:
> 
>   avoid extra park of vthread when using fixed thread pool

The header has extra blank lines at the start and end that need to be removed.

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

PR: https://git.openjdk.java.net/loom/pull/59

From duke at openjdk.java.net  Tue Oct 19 08:48:28 2021
From: duke at openjdk.java.net (duke)
Date: Tue, 19 Oct 2021 08:48:28 GMT
Subject: git: openjdk/loom: fibers: fixed 8275001:
 hotspot/jtreg/serviceability/jvmti/negative/thrstat04/thrstat04.java SEGV in
 java_lang_VirtualThread::is_instance
Message-ID: <7af47399-99a0-4302-841f-59aca78e10dc@openjdk.java.net>

Changeset: 991d2764
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-10-19 08:47:04 +0000
URL:       https://git.openjdk.java.net/loom/commit/991d27640a15105616442732f2c7f2bb47f7e081

fixed 8275001: hotspot/jtreg/serviceability/jvmti/negative/thrstat04/thrstat04.java SEGV in java_lang_VirtualThread::is_instance

! src/hotspot/share/prims/jvmtiExport.cpp


From julien at julienviet.com  Tue Oct 19 06:49:18 2021
From: julien at julienviet.com (Julien Viet)
Date: Tue, 19 Oct 2021 08:49:18 +0200
Subject: [vertx-dev] Async-Await in Vertx with Project Loom
In-Reply-To: <CAHNb0ZN9+9HDNfgXj63+hFkW6Us+3d3TQFGu8aX2fyOxGUiLmw@mail.gmail.com>
References: <CAHNb0ZN9+9HDNfgXj63+hFkW6Us+3d3TQFGu8aX2fyOxGUiLmw@mail.gmail.com>
Message-ID: <CA+H-X4-Uf6t7wanrSKo+NwGJwixz5cWQVPOgtcgsJyOHb_RVog@mail.gmail.com>

Hi August,

this is very exciting, there are a few ways Vert.x could use Loom and
experimentations need to be done, thanks for coming with this project.

I can see you are using the Continuation class from Loom, do you know
wether this class will remain available ? I attended a presentation a
long time ago and the presenter (Loom lead) said that such classes
would remain internal.

I encourage you to share this with the async / Vert.x community, I
created a Loom channel [1] on our discord server where people like you
can share their experiment and discuss Loom + Vert.x :-)

Julien

[1] https://discord.com/channels/751380286071242794/899911362770268181

On Mon, Oct 18, 2021 at 5:14 AM August Nagro <augustnagro at gmail.com> wrote:
>
> Hello; I recently implemented async/await in Vertx using Project Loom.
>
> Feedback and code review are very welcome. The project is only about 100 lines of code. Hopefully something similar could be merged into `vertx-core` when Loom is released.
>
> https://github.com/AugustNagro/vertx-loom
>
> Cheers,
>
> August
>
> --
> You received this message because you are subscribed to the Google Groups "vertx-dev" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to vertx-dev+unsubscribe at googlegroups.com.
> To view this discussion on the web, visit https://groups.google.com/d/msgid/vertx-dev/CAHNb0ZN9%2B9HDNfgXj63%2BhFkW6Us%2B3d3TQFGu8aX2fyOxGUiLmw%40mail.gmail.com.

From ron.pressler at oracle.com  Tue Oct 19 10:31:29 2021
From: ron.pressler at oracle.com (Ron Pressler)
Date: Tue, 19 Oct 2021 10:31:29 +0000
Subject: Async-Await in Vertx with Project Loom
In-Reply-To: <CAHNb0ZPeL51HK62rwjQRNy4ZQ+Z1GRLbOCH1BpDN6Fy-u4hmQQ@mail.gmail.com>
References: <CAHNb0ZN9+9HDNfgXj63+hFkW6Us+3d3TQFGu8aX2fyOxGUiLmw@mail.gmail.com>
 <1696490001.29025.1634538006212.JavaMail.zimbra@u-pem.fr>
 <CAHNb0ZPeL51HK62rwjQRNy4ZQ+Z1GRLbOCH1BpDN6Fy-u4hmQQ@mail.gmail.com>
Message-ID: <C560A186-97E5-4722-91EF-F157D417B1CF@oracle.com>



> On 18 Oct 2021, at 14:40, August Nagro <augustnagro at gmail.com> wrote:
> 
> Thanks for the info.. that's a bummer. Is it a permanent API change?

For Continuation in its current form ? yes. It is not safe and could even result in miscompilation if not 
used carefully (the JIT compilers are allowed to assume that the identity of the current thread does not change
within a method). Many of its use-cases could be achieved with a custom scheduler, although, depending on 
how much time we have to consider that API, it might not make the first Preview, either.

? Ron


From duke at openjdk.java.net  Tue Oct 19 16:03:21 2021
From: duke at openjdk.java.net (duke)
Date: Tue, 19 Oct 2021 16:03:21 GMT
Subject: git: openjdk/loom: fibers: Clear thawed frame's arguments' bits in
 bitmap to prevent a leak
Message-ID: <050cf122-eccc-447f-8ed4-410f9b945553@openjdk.java.net>

Changeset: a51e1100
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2021-10-19 16:59:38 +0000
URL:       https://git.openjdk.java.net/loom/commit/a51e1100bce24347fb5c3c916630762b103e0f0b

Clear thawed frame's arguments' bits in bitmap to prevent a leak

! src/hotspot/share/runtime/continuation.cpp
! test/jdk/ProblemList-vthread.txt
+ test/jdk/jdk/internal/vm/Continuation/ClassUnloading.java


From augustnagro at gmail.com  Tue Oct 19 18:47:48 2021
From: augustnagro at gmail.com (August Nagro)
Date: Tue, 19 Oct 2021 11:47:48 -0700
Subject: Async-Await in Vertx with Project Loom
In-Reply-To: <C560A186-97E5-4722-91EF-F157D417B1CF@oracle.com>
References: <CAHNb0ZN9+9HDNfgXj63+hFkW6Us+3d3TQFGu8aX2fyOxGUiLmw@mail.gmail.com>
 <1696490001.29025.1634538006212.JavaMail.zimbra@u-pem.fr>
 <CAHNb0ZPeL51HK62rwjQRNy4ZQ+Z1GRLbOCH1BpDN6Fy-u4hmQQ@mail.gmail.com>
 <C560A186-97E5-4722-91EF-F157D417B1CF@oracle.com>
Message-ID: <CAHNb0ZN3xO66psPKMDxNKztPx9D0dQ66rWE1t2HeJEDP+LoDHA@mail.gmail.com>

That's understandable.

I hope eventually the ability to await Futures (or Rx, Mutiny, ZIO, etc)
can be expressed, because it adds a lot of value to these ecosystems. You
can 'code like you're sync', while still getting a Monad when you want,
like to configure retry and timeout.

With regards to a custom scheduler, can you elaborate on that idea?

On Tue, Oct 19, 2021, 3:31 AM Ron Pressler <ron.pressler at oracle.com> wrote:

>
>
> > On 18 Oct 2021, at 14:40, August Nagro <augustnagro at gmail.com> wrote:
> >
> > Thanks for the info.. that's a bummer. Is it a permanent API change?
>
> For Continuation in its current form ? yes. It is not safe and could even
> result in miscompilation if not
> used carefully (the JIT compilers are allowed to assume that the identity
> of the current thread does not change
> within a method). Many of its use-cases could be achieved with a custom
> scheduler, although, depending on
> how much time we have to consider that API, it might not make the first
> Preview, either.
>
> ? Ron
>
>

From augustnagro at gmail.com  Thu Oct 21 07:12:21 2021
From: augustnagro at gmail.com (August Nagro)
Date: Thu, 21 Oct 2021 00:12:21 -0700
Subject: [vertx-dev] Async-Await in Vertx with Project Loom
In-Reply-To: <CA+H-X4-Uf6t7wanrSKo+NwGJwixz5cWQVPOgtcgsJyOHb_RVog@mail.gmail.com>
References: <CAHNb0ZN9+9HDNfgXj63+hFkW6Us+3d3TQFGu8aX2fyOxGUiLmw@mail.gmail.com>
 <CA+H-X4-Uf6t7wanrSKo+NwGJwixz5cWQVPOgtcgsJyOHb_RVog@mail.gmail.com>
Message-ID: <CAHNb0ZOFwZyR+G5qZwXfyP1D-K826z=g3oHsDnEtj3hwqTSbmA@mail.gmail.com>

Thanks Julien!

I had cc'd loom-dev, which told me the same; Continuation is now private. (
https://mail.openjdk.java.net/pipermail/loom-dev/2021-October/002989.html).
I updated the repo README with a warning.

Ron pointed out that a custom scheduler could support some Continuation use
cases, but now that I've thought about it some more; I think we can
actually implement 'async/await' with just a Virtual Thread and a lock.

Here's a gist with one approach:
https://gist.github.com/AugustNagro/29eaddbd281621a35dcd8b98337d5369

Now my big question is how Virtual Threads fit into the Vertx/Netty
event-loop story.

Cheers,

- August

On Mon, Oct 18, 2021 at 11:49 PM Julien Viet <julien at julienviet.com> wrote:

> Hi August,
>
> this is very exciting, there are a few ways Vert.x could use Loom and
> experimentations need to be done, thanks for coming with this project.
>
> I can see you are using the Continuation class from Loom, do you know
> wether this class will remain available ? I attended a presentation a
> long time ago and the presenter (Loom lead) said that such classes
> would remain internal.
>
> I encourage you to share this with the async / Vert.x community, I
> created a Loom channel [1] on our discord server where people like you
> can share their experiment and discuss Loom + Vert.x :-)
>
> Julien
>
> [1] https://discord.com/channels/751380286071242794/899911362770268181
>
> On Mon, Oct 18, 2021 at 5:14 AM August Nagro <augustnagro at gmail.com>
> wrote:
> >
> > Hello; I recently implemented async/await in Vertx using Project Loom.
> >
> > Feedback and code review are very welcome. The project is only about 100
> lines of code. Hopefully something similar could be merged into
> `vertx-core` when Loom is released.
> >
> > https://github.com/AugustNagro/vertx-loom
> >
> > Cheers,
> >
> > August
> >
> > --
> > You received this message because you are subscribed to the Google
> Groups "vertx-dev" group.
> > To unsubscribe from this group and stop receiving emails from it, send
> an email to vertx-dev+unsubscribe at googlegroups.com.
> > To view this discussion on the web, visit
> https://groups.google.com/d/msgid/vertx-dev/CAHNb0ZN9%2B9HDNfgXj63%2BhFkW6Us%2B3d3TQFGu8aX2fyOxGUiLmw%40mail.gmail.com
> .
>
> --
> You received this message because you are subscribed to the Google Groups
> "vertx-dev" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to vertx-dev+unsubscribe at googlegroups.com.
> To view this discussion on the web, visit
> https://groups.google.com/d/msgid/vertx-dev/CA%2BH-X4-Uf6t7wanrSKo%2BNwGJwixz5cWQVPOgtcgsJyOHb_RVog%40mail.gmail.com
> .
>

From Alan.Bateman at oracle.com  Thu Oct 21 08:12:36 2021
From: Alan.Bateman at oracle.com (Alan Bateman)
Date: Thu, 21 Oct 2021 09:12:36 +0100
Subject: [vertx-dev] Async-Await in Vertx with Project Loom
In-Reply-To: <CAHNb0ZOFwZyR+G5qZwXfyP1D-K826z=g3oHsDnEtj3hwqTSbmA@mail.gmail.com>
References: <CAHNb0ZN9+9HDNfgXj63+hFkW6Us+3d3TQFGu8aX2fyOxGUiLmw@mail.gmail.com>
 <CA+H-X4-Uf6t7wanrSKo+NwGJwixz5cWQVPOgtcgsJyOHb_RVog@mail.gmail.com>
 <CAHNb0ZOFwZyR+G5qZwXfyP1D-K826z=g3oHsDnEtj3hwqTSbmA@mail.gmail.com>
Message-ID: <d1da0409-f604-ae45-a4bf-c0b04e17a0c1@oracle.com>

On 21/10/2021 08:12, August Nagro wrote:
> :
>
> Now my big question is how Virtual Threads fit into the Vertx/Netty
> event-loop story.
I don't know if anyone has tried to run the event loop in a virtual 
thread but there has been a few reports of off-loading to virtual 
threads. This is problematic due to Netty's thread local buffer caches 
where a lot of the time is spent initializing and allocating native 
memory. Project Panama Foreign Memory API is looking very good and maybe 
some future version of Netty could build an allocator and buffer pool 
based on that and at the same time play well with virtual threads.

-Alan

From augustnagro at gmail.com  Fri Oct 22 05:43:22 2021
From: augustnagro at gmail.com (August Nagro)
Date: Thu, 21 Oct 2021 22:43:22 -0700
Subject: [vertx-dev] Async-Await in Vertx with Project Loom
In-Reply-To: <d1da0409-f604-ae45-a4bf-c0b04e17a0c1@oracle.com>
References: <CAHNb0ZN9+9HDNfgXj63+hFkW6Us+3d3TQFGu8aX2fyOxGUiLmw@mail.gmail.com>
 <CA+H-X4-Uf6t7wanrSKo+NwGJwixz5cWQVPOgtcgsJyOHb_RVog@mail.gmail.com>
 <CAHNb0ZOFwZyR+G5qZwXfyP1D-K826z=g3oHsDnEtj3hwqTSbmA@mail.gmail.com>
 <d1da0409-f604-ae45-a4bf-c0b04e17a0c1@oracle.com>
Message-ID: <CAHNb0ZNd8mrLG4H8OKr66FUUA8RZJppqTb22O9OfZeHXjdQn2A@mail.gmail.com>

Altan Ozlu made a benchmark in 2019 which looked promising:
https://github.com/altanozlu/NettyFiberBenchmarks . It is a big change
though; more than I could bite off.

I changed my async-await implementation to use Virtual Threads and Locking.
It also uses a custom Executor like Ron suggested, to schedule tasks on the
Event Loop Context. Doing so keeps everything asynchronous but still
single-threaded, the big benefit of using Verticles.

https://github.com/AugustNagro/vertx-async-await

I also made an async-await implementation for CompletionStage and friends:

https://github.com/AugustNagro/java-async-await

- August

On Thu, Oct 21, 2021 at 1:12 AM Alan Bateman <Alan.Bateman at oracle.com>
wrote:

> On 21/10/2021 08:12, August Nagro wrote:
> > :
> >
> > Now my big question is how Virtual Threads fit into the Vertx/Netty
> > event-loop story.
> I don't know if anyone has tried to run the event loop in a virtual
> thread but there has been a few reports of off-loading to virtual
> threads. This is problematic due to Netty's thread local buffer caches
> where a lot of the time is spent initializing and allocating native
> memory. Project Panama Foreign Memory API is looking very good and maybe
> some future version of Netty could build an allocator and buffer pool
> based on that and at the same time play well with virtual threads.
>
> -Alan
>

From julien at julienviet.com  Fri Oct 22 06:10:05 2021
From: julien at julienviet.com (Julien Viet)
Date: Fri, 22 Oct 2021 08:10:05 +0200
Subject: [vertx-dev] Async-Await in Vertx with Project Loom
In-Reply-To: <CAHNb0ZNd8mrLG4H8OKr66FUUA8RZJppqTb22O9OfZeHXjdQn2A@mail.gmail.com>
References: <CAHNb0ZN9+9HDNfgXj63+hFkW6Us+3d3TQFGu8aX2fyOxGUiLmw@mail.gmail.com>
 <CA+H-X4-Uf6t7wanrSKo+NwGJwixz5cWQVPOgtcgsJyOHb_RVog@mail.gmail.com>
 <CAHNb0ZOFwZyR+G5qZwXfyP1D-K826z=g3oHsDnEtj3hwqTSbmA@mail.gmail.com>
 <d1da0409-f604-ae45-a4bf-c0b04e17a0c1@oracle.com>
 <CAHNb0ZNd8mrLG4H8OKr66FUUA8RZJppqTb22O9OfZeHXjdQn2A@mail.gmail.com>
Message-ID: <CA+H-X49MrViRVeJn_hvkquo6ZJtpkWCQwawr0YxGcZap3OA1hw@mail.gmail.com>

nice work

On Fri, Oct 22, 2021 at 7:43 AM August Nagro <augustnagro at gmail.com> wrote:
>
> Altan Ozlu made a benchmark in 2019 which looked promising: https://github.com/altanozlu/NettyFiberBenchmarks . It is a big change though; more than I could bite off.
>
> I changed my async-await implementation to use Virtual Threads and Locking. It also uses a custom Executor like Ron suggested, to schedule tasks on the Event Loop Context. Doing so keeps everything asynchronous but still single-threaded, the big benefit of using Verticles.
>
> https://github.com/AugustNagro/vertx-async-await
>
> I also made an async-await implementation for CompletionStage and friends:
>
> https://github.com/AugustNagro/java-async-await
>
> - August
>
> On Thu, Oct 21, 2021 at 1:12 AM Alan Bateman <Alan.Bateman at oracle.com> wrote:
>>
>> On 21/10/2021 08:12, August Nagro wrote:
>> > :
>> >
>> > Now my big question is how Virtual Threads fit into the Vertx/Netty
>> > event-loop story.
>> I don't know if anyone has tried to run the event loop in a virtual
>> thread but there has been a few reports of off-loading to virtual
>> threads. This is problematic due to Netty's thread local buffer caches
>> where a lot of the time is spent initializing and allocating native
>> memory. Project Panama Foreign Memory API is looking very good and maybe
>> some future version of Netty could build an allocator and buffer pool
>> based on that and at the same time play well with virtual threads.
>>
>> -Alan
>
> --
> You received this message because you are subscribed to the Google Groups "vertx-dev" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to vertx-dev+unsubscribe at googlegroups.com.
> To view this discussion on the web, visit https://groups.google.com/d/msgid/vertx-dev/CAHNb0ZNd8mrLG4H8OKr66FUUA8RZJppqTb22O9OfZeHXjdQn2A%40mail.gmail.com.

From oleksandr.otenko at gmail.com  Fri Oct 22 14:25:50 2021
From: oleksandr.otenko at gmail.com (Alex Otenko)
Date: Fri, 22 Oct 2021 15:25:50 +0100
Subject: Async-Await in Vertx with Project Loom
In-Reply-To: <CAHNb0ZN9+9HDNfgXj63+hFkW6Us+3d3TQFGu8aX2fyOxGUiLmw@mail.gmail.com>
References: <CAHNb0ZN9+9HDNfgXj63+hFkW6Us+3d3TQFGu8aX2fyOxGUiLmw@mail.gmail.com>
Message-ID: <CANkgWKg1pnPDyPOk8-m9t+-n5eJM-4Sc6vyD82r+8TUwO3jwpQ@mail.gmail.com>

That example doesn't appear to be comparable.

CompletableFuture example is parallel, async/await is sequential.

It would be great to see the amount of boilerplate needed to implement both
in both cases.

Alex

On Mon, 18 Oct 2021, 04:15 August Nagro, <augustnagro at gmail.com> wrote:

> Hello; I recently implemented async/await in Vertx using Project Loom.
>
> Feedback and code review are very welcome. The project is only about 100
> lines of code. Hopefully something similar could be merged into
> `vertx-core` when Loom is released.
>
> https://github.com/AugustNagro/vertx-loom
>
> Cheers,
>
> August
>

From duke at openjdk.java.net  Sat Oct 23 12:24:45 2021
From: duke at openjdk.java.net (duke)
Date: Sat, 23 Oct 2021 12:24:45 GMT
Subject: git: openjdk/loom: fibers: Windows debug builds failing intermittently
Message-ID: <907e91bf-e36f-4e86-a500-180bad5461ce@openjdk.java.net>

Changeset: 89ffb9a6
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-23 13:23:59 +0000
URL:       https://git.openjdk.java.net/loom/commit/89ffb9a6212cc5ceeb32c263f37b623d303a26d7

Windows debug builds failing intermittently

! src/hotspot/cpu/x86/stubRoutines_x86.hpp


From openjdk-loom-dev at jotschi.de  Mon Oct 25 05:02:51 2021
From: openjdk-loom-dev at jotschi.de (=?UTF-8?Q?Johannes_Sch=C3=BCth?=)
Date: Mon, 25 Oct 2021 07:02:51 +0200
Subject: Netty Support / VirtualThread Selector#select Issue
Message-ID: <CA+zj3DKqbf53q8N=Su9GXOm+WaccQT+itwhpqxoqRsCOPpeFiw@mail.gmail.com>

Hello,

I started some experiments on how to add Loom VirtualThread support to
Netty.

During my tests I noticed that Netty was no longer able to handle requests
when using 500+ virtual threads for its reactor pool.

I created a dedicated test without Netty to replicate this issue and found
that the JVM would not run / start a new virtual thread if 400+ previous
threads were calling new `Selector().select().`
I'm not yet sure why this is the case. The thread dump shows all threads as
'Running'.

--snip--
static final int THREAD_COUNT = 1500;

@Test
public void testSelectorThreads() throws InterruptedException,
TimeoutException {
    CountDownLatch latch = new CountDownLatch(THREAD_COUNT);
    AtomicInteger startCounter = new AtomicInteger();
    for (int i = 0; i < THREAD_COUNT; i++) {
        Thread.startVirtualThread(() -> {
            try {
                System.out.println("Running: " +
startCounter.incrementAndGet());
                latch.countDown();
                Selector selector = Selector.open();
                selector.select();
                Thread.sleep(10_000);
            } catch (Exception e) {
                e.printStackTrace();
            }
        });
    }

    if (!latch.await(5_000, TimeUnit.MILLISECONDS)) {
        dumpThreads();
    }
    assertEquals("Not all thread did start.", THREAD_COUNT,
startCounter.get());
}
--snap--

The full repository can be found on Github:
https://github.com/Jotschi/netty-loom-experiment

Aside of this problem my two major concerns for Netty Loom support are
Garbage/GC overhead due to newly created threadlocals for on-demand virtual
threads and JNI usage within Netty itself (e.g. EPoll and soon hopefully
io_uring).
I'm however not a Netty expert and merely experimenting out of curiosity.
As mentioned in the async-await thread the thread local problem could be
addressed by the Foreign Memory API of Project Panama.
Any other feedback would be welcome.

Thanks for the great work.

Greetings,

Johannes

From duke at openjdk.java.net  Mon Oct 25 06:29:13 2021
From: duke at openjdk.java.net (duke)
Date: Mon, 25 Oct 2021 06:29:13 GMT
Subject: git: openjdk/loom: fibers: fix root cause of MethodExitTest failure
Message-ID: <87287ba4-3445-4cfc-ad41-aa554300c965@openjdk.java.net>

Changeset: d7a3e05d
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-10-25 06:27:37 +0000
URL:       https://git.openjdk.java.net/loom/commit/d7a3e05dccebd74ad8b69b095aae6d4d40a60b51

fix root cause of MethodExitTest failure

! src/hotspot/share/prims/jvm.cpp
! src/java.base/share/classes/java/lang/VirtualThread.java


From Alan.Bateman at oracle.com  Mon Oct 25 08:21:46 2021
From: Alan.Bateman at oracle.com (Alan Bateman)
Date: Mon, 25 Oct 2021 09:21:46 +0100
Subject: Netty Support / VirtualThread Selector#select Issue
In-Reply-To: <CA+zj3DKqbf53q8N=Su9GXOm+WaccQT+itwhpqxoqRsCOPpeFiw@mail.gmail.com>
References: <CA+zj3DKqbf53q8N=Su9GXOm+WaccQT+itwhpqxoqRsCOPpeFiw@mail.gmail.com>
Message-ID: <0d530a83-7905-a661-dd53-a0008ba657b9@oracle.com>

On 25/10/2021 06:02, Johannes Sch?th wrote:
> Hello,
>
> I started some experiments on how to add Loom VirtualThread support to
> Netty.
>
> During my tests I noticed that Netty was no longer able to handle requests
> when using 500+ virtual threads for its reactor pool.
>
> I created a dedicated test without Netty to replicate this issue and found
> that the JVM would not run / start a new virtual thread if 400+ previous
> threads were calling new `Selector().select().`
> I'm not yet sure why this is the case. The thread dump shows all threads as
> 'Running'.
>
There are cases where the VM cannot suspend a virtual thread, we say 
that the thread is "pinned". One scenario (that we expect will go away 
in the long term) is when a virtual thread is holding a monitor. 
Blocking selection operations are one of these cases. Selector is 
specified to synchronize on the Selector object and can't be changed for 
compatibility reasons. So the summary that invoking blocking selection 
operations on a virtual thread will pin the thread for the duration of 
the selection operation. This means the underlying thread is not 
released to do other work. To compensate, parallelism will increase for 
the duration of the selection operations so you will see the number of 
carrier threads increase up to a limit (default is 256 but can be 
configured).

That said, I'm a bit surprised that you have a Selector per thread. That 
seems an architectural mismatch. Do you have an event loop per thread or 
how does this arise?

-Alan.

From duke at openjdk.java.net  Mon Oct 25 08:27:27 2021
From: duke at openjdk.java.net (duke)
Date: Mon, 25 Oct 2021 08:27:27 GMT
Subject: git: openjdk/loom: fibers: make JVMTI notification in afterTerminate()
 about UnmountEnd conditional
Message-ID: <495564bf-cb62-4a79-ad88-92a5e67cce16@openjdk.java.net>

Changeset: e68ce6ca
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-10-25 08:26:38 +0000
URL:       https://git.openjdk.java.net/loom/commit/e68ce6cafaba704df97e11a99978219d962c7194

make JVMTI notification in afterTerminate() about UnmountEnd conditional

! src/java.base/share/classes/java/lang/VirtualThread.java


From openjdk-loom-dev at jotschi.de  Mon Oct 25 09:59:34 2021
From: openjdk-loom-dev at jotschi.de (=?UTF-8?Q?Johannes_Sch=C3=BCth?=)
Date: Mon, 25 Oct 2021 11:59:34 +0200
Subject: Netty Support / VirtualThread Selector#select Issue
In-Reply-To: <0d530a83-7905-a661-dd53-a0008ba657b9@oracle.com>
References: <CA+zj3DKqbf53q8N=Su9GXOm+WaccQT+itwhpqxoqRsCOPpeFiw@mail.gmail.com>
 <0d530a83-7905-a661-dd53-a0008ba657b9@oracle.com>
Message-ID: <CA+zj3D+mT4YNLpWdE2u+iTboa9HgAbP716-+fyhYyHEUJkQudQ@mail.gmail.com>

Hello Alan,

yes - there is one eventloop per thread. That's the default behavior for
Netty. Your feedback gave me some clues on how to adapt the implementation.
Using a single selector with multiple threads makes more sense.
I'm not sure why Netty is using a different approach. Maybe this is done
this way to avoid synchronization on selection key operations (which are
not thread safe).

Johannes


Am Mo., 25. Okt. 2021 um 10:22 Uhr schrieb Alan Bateman <
Alan.Bateman at oracle.com>:

> On 25/10/2021 06:02, Johannes Sch?th wrote:
> > Hello,
> >
> > I started some experiments on how to add Loom VirtualThread support to
> > Netty.
> >
> > During my tests I noticed that Netty was no longer able to handle
> requests
> > when using 500+ virtual threads for its reactor pool.
> >
> > I created a dedicated test without Netty to replicate this issue and
> found
> > that the JVM would not run / start a new virtual thread if 400+ previous
> > threads were calling new `Selector().select().`
> > I'm not yet sure why this is the case. The thread dump shows all threads
> as
> > 'Running'.
> >
> There are cases where the VM cannot suspend a virtual thread, we say
> that the thread is "pinned". One scenario (that we expect will go away
> in the long term) is when a virtual thread is holding a monitor.
> Blocking selection operations are one of these cases. Selector is
> specified to synchronize on the Selector object and can't be changed for
> compatibility reasons. So the summary that invoking blocking selection
> operations on a virtual thread will pin the thread for the duration of
> the selection operation. This means the underlying thread is not
> released to do other work. To compensate, parallelism will increase for
> the duration of the selection operations so you will see the number of
> carrier threads increase up to a limit (default is 256 but can be
> configured).
>
> That said, I'm a bit surprised that you have a Selector per thread. That
> seems an architectural mismatch. Do you have an event loop per thread or
> how does this arise?
>
> -Alan.
>

From oleksandr.otenko at gmail.com  Mon Oct 25 13:36:49 2021
From: oleksandr.otenko at gmail.com (Alex Otenko)
Date: Mon, 25 Oct 2021 14:36:49 +0100
Subject: Netty Support / VirtualThread Selector#select Issue
In-Reply-To: <CA+zj3D+mT4YNLpWdE2u+iTboa9HgAbP716-+fyhYyHEUJkQudQ@mail.gmail.com>
References: <CA+zj3DKqbf53q8N=Su9GXOm+WaccQT+itwhpqxoqRsCOPpeFiw@mail.gmail.com>
 <0d530a83-7905-a661-dd53-a0008ba657b9@oracle.com>
 <CA+zj3D+mT4YNLpWdE2u+iTboa9HgAbP716-+fyhYyHEUJkQudQ@mail.gmail.com>
Message-ID: <CANkgWKimgHVc-JP7_2xEmkn_gXyj+-4F+dZqRF4gqqjhRPiCTQ@mail.gmail.com>

Selector per thread allows to spread the load across multiple threads. A
single selector either won't scale, or will waste cycles handing off work
to others.

But you want to keep the number of event loop threads close to #CPUs.
(Ideally equal to the number of cores, but it depends)

Alex

On Mon, 25 Oct 2021, 12:14 Johannes Sch?th, <openjdk-loom-dev at jotschi.de>
wrote:

> Hello Alan,
>
> yes - there is one eventloop per thread. That's the default behavior for
> Netty. Your feedback gave me some clues on how to adapt the implementation.
> Using a single selector with multiple threads makes more sense.
> I'm not sure why Netty is using a different approach. Maybe this is done
> this way to avoid synchronization on selection key operations (which are
> not thread safe).
>
> Johannes
>
>
> Am Mo., 25. Okt. 2021 um 10:22 Uhr schrieb Alan Bateman <
> Alan.Bateman at oracle.com>:
>
> > On 25/10/2021 06:02, Johannes Sch?th wrote:
> > > Hello,
> > >
> > > I started some experiments on how to add Loom VirtualThread support to
> > > Netty.
> > >
> > > During my tests I noticed that Netty was no longer able to handle
> > requests
> > > when using 500+ virtual threads for its reactor pool.
> > >
> > > I created a dedicated test without Netty to replicate this issue and
> > found
> > > that the JVM would not run / start a new virtual thread if 400+
> previous
> > > threads were calling new `Selector().select().`
> > > I'm not yet sure why this is the case. The thread dump shows all
> threads
> > as
> > > 'Running'.
> > >
> > There are cases where the VM cannot suspend a virtual thread, we say
> > that the thread is "pinned". One scenario (that we expect will go away
> > in the long term) is when a virtual thread is holding a monitor.
> > Blocking selection operations are one of these cases. Selector is
> > specified to synchronize on the Selector object and can't be changed for
> > compatibility reasons. So the summary that invoking blocking selection
> > operations on a virtual thread will pin the thread for the duration of
> > the selection operation. This means the underlying thread is not
> > released to do other work. To compensate, parallelism will increase for
> > the duration of the selection operations so you will see the number of
> > carrier threads increase up to a limit (default is 256 but can be
> > configured).
> >
> > That said, I'm a bit surprised that you have a Selector per thread. That
> > seems an architectural mismatch. Do you have an event loop per thread or
> > how does this arise?
> >
> > -Alan.
> >
>

From Alan.Bateman at oracle.com  Mon Oct 25 14:20:30 2021
From: Alan.Bateman at oracle.com (Alan Bateman)
Date: Mon, 25 Oct 2021 15:20:30 +0100
Subject: Netty Support / VirtualThread Selector#select Issue
In-Reply-To: <CA+zj3D+mT4YNLpWdE2u+iTboa9HgAbP716-+fyhYyHEUJkQudQ@mail.gmail.com>
References: <CA+zj3DKqbf53q8N=Su9GXOm+WaccQT+itwhpqxoqRsCOPpeFiw@mail.gmail.com>
 <0d530a83-7905-a661-dd53-a0008ba657b9@oracle.com>
 <CA+zj3D+mT4YNLpWdE2u+iTboa9HgAbP716-+fyhYyHEUJkQudQ@mail.gmail.com>
Message-ID: <3f1a8c3b-b522-f777-7fb8-72144b90a5ad@oracle.com>

On 25/10/2021 10:59, Johannes Sch?th wrote:
> Hello Alan,
>
> yes - there is one eventloop per thread. That's the default behavior for
> Netty. Your feedback gave me some clues on how to adapt the implementation.
> Using a single selector with multiple threads makes more sense.
> I'm not sure why Netty is using a different approach. Maybe this is done
> this way to avoid synchronization on selection key operations (which are
> not thread safe).
It might be that you don't need to use non-blocking I/O and Selectors.

As regards the synchronization on selection keys then they have always 
been specified to be safe for use by concurrent threads. Maybe you are 
thinking about updates to the interest set needing to synchronize with 
selection operations? The spec was relaxed in Java 11 to not require 
that. Any changes to the interest set will be seen by the next selection 
operation.

-Alan

From duke at openjdk.java.net  Tue Oct 26 02:20:15 2021
From: duke at openjdk.java.net (duke)
Date: Tue, 26 Oct 2021 02:20:15 GMT
Subject: git: openjdk/loom: fibers: add needed sync to
 serviceability/thread/GetFrameCount/framecnt01 test
Message-ID: <861541cb-bf44-4c3a-a0a8-69ea70cb2b70@openjdk.java.net>

Changeset: 9a5f9fc6
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-10-26 02:18:44 +0000
URL:       https://git.openjdk.java.net/loom/commit/9a5f9fc603c5bcfbf2b7af2c86164b733449b242

add needed sync to serviceability/thread/GetFrameCount/framecnt01 test

! test/hotspot/jtreg/serviceability/jvmti/thread/GetFrameCount/framecnt01/framecnt01.java


From duke at openjdk.java.net  Tue Oct 26 08:43:05 2021
From: duke at openjdk.java.net (duke)
Date: Tue, 26 Oct 2021 08:43:05 GMT
Subject: git: openjdk/loom: fibers: minor correction of the JVMTI
 ThreadStart/ThreadEnd spec
Message-ID: <24c0b8a7-3695-4f8a-8941-4703ce82f7e7@openjdk.java.net>

Changeset: f68e3f3d
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-10-26 08:42:29 +0000
URL:       https://git.openjdk.java.net/loom/commit/f68e3f3d56e043303a7a74129fab52b6ae7cc564

minor correction of the JVMTI ThreadStart/ThreadEnd spec

! src/hotspot/share/prims/jvmti.xml


From duke at openjdk.java.net  Tue Oct 26 12:06:45 2021
From: duke at openjdk.java.net (duke)
Date: Tue, 26 Oct 2021 12:06:45 GMT
Subject: git: openjdk/loom: fibers: Change ReferenceQueue to use j.u.c locks
Message-ID: <4a45b8f6-02e6-4e54-afa5-150f979aa5e0@openjdk.java.net>

Changeset: e3cc6e74
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2021-10-12 18:50:07 +0000
URL:       https://git.openjdk.java.net/loom/commit/e3cc6e74d1d93cddf5a8430ae60dfe432cec0d2b

Change ReferenceQueue to use j.u.c locks

! src/java.base/share/classes/java/lang/VirtualThread.java
! src/java.base/share/classes/java/lang/ref/ReferenceQueue.java
! src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java
! src/java.base/share/classes/java/util/concurrent/ForkJoinTask.java
! src/java.base/share/classes/java/util/concurrent/locks/AbstractQueuedLongSynchronizer.java
! src/java.base/share/classes/java/util/concurrent/locks/AbstractQueuedSynchronizer.java
+ src/java.base/share/classes/java/util/concurrent/locks/ForkJoinPoolHelper.java
! test/hotspot/jtreg/serviceability/sa/ClhsdbInspect.java


From duke at openjdk.java.net  Tue Oct 26 21:37:49 2021
From: duke at openjdk.java.net (duke)
Date: Tue, 26 Oct 2021 21:37:49 GMT
Subject: git: openjdk/loom: fibers: 2 new changesets
Message-ID: <c8d1abad-70b0-45ca-9a61-200cd8b55457@openjdk.java.net>

Changeset: b734bde5
Author:    Chris Plummer <chris.plummer at oracle.com>
Date:      2021-10-26 21:22:04 +0000
URL:       https://git.openjdk.java.net/loom/commit/b734bde58dcb949b962edb15d80dd02f1c742653

Updated comment for VMOutOfMemoryException001 test.

! test/hotspot/jtreg/ProblemList-vthread.txt

Changeset: 2ec33820
Author:    Chris Plummer <chris.plummer at oracle.com>
Date:      2021-10-26 21:36:13 +0000
URL:       https://git.openjdk.java.net/loom/commit/2ec33820a111284dedb16ab329386f8d7c22dc20

Do a notify on the threadLock after calling ResumeAllVirtualThreads ust like we do whereever else we resume a thread.

! src/jdk.jdwp.agent/share/native/libjdwp/threadControl.c


From augustnagro at gmail.com  Wed Oct 27 02:48:33 2021
From: augustnagro at gmail.com (August Nagro)
Date: Tue, 26 Oct 2021 19:48:33 -0700
Subject: Async-Await in Vertx with Project Loom
In-Reply-To: <CANkgWKg1pnPDyPOk8-m9t+-n5eJM-4Sc6vyD82r+8TUwO3jwpQ@mail.gmail.com>
References: <CAHNb0ZN9+9HDNfgXj63+hFkW6Us+3d3TQFGu8aX2fyOxGUiLmw@mail.gmail.com>
 <CANkgWKg1pnPDyPOk8-m9t+-n5eJM-4Sc6vyD82r+8TUwO3jwpQ@mail.gmail.com>
Message-ID: <CAHNb0ZP6zm+cVXV5x0bRyouiDGr7Jz=kKkyKek7M04Yrq=nxhQ@mail.gmail.com>

To make the sequential Async-Await code parallel, we could define a method
'awaitAll' (which is probably be a good addition to the library):

public static <A> List<A> awaitAll(List<CompletionStage<A>> stages) {
  return stages.stream().map(stage -> await(stage)).toList();
}

And change the sequential part from

  List<String> userNames = userIds.stream()
    .map(id -> await(userNamesFromSomeApi(id)))
    .toList();


To:

  List<String> userNames = awaitAll(
    userIds.stream()
      .map(id -> userNamesFromSomeApi(id))
      .toList()
  );

To make the CompletableFuture example sequential, we could make a chain of
thenCompose operations. So From:

List<CompletableFuture<String>> userNameFutures = userIds.stream()
  .map(id -> userNamesFromSomeApi(id))
  .map(CompletionStage::toCompletableFuture)
  .toList();

CompletableFuture.allOf(userNameFutures.toArray(new CompletableFuture[0]))
  .thenCompose(voidd -> {...});

To:

CompletionStage<List<String>> userNames =
  CompletableFuture.supplyAsync(() -> new ArrayList<>());

for (Long userId : userIds) {
  userNames = userNames.thenCompose(list -> {
    return userNamesFromSomeApi(userId)
      .thenApply(userName -> {
        list.add(userName);
        return list;
      });
  });
}

userNames.thenCompose(...)

Overall, I think async-await is nicer than flatMap/thenCompose chains. And
'just blocking' on a virtual thread is even nicer.


On Fri, Oct 22, 2021 at 7:26 AM Alex Otenko <oleksandr.otenko at gmail.com>
wrote:

> That example doesn't appear to be comparable.
>
> CompletableFuture example is parallel, async/await is sequential.
>
> It would be great to see the amount of boilerplate needed to implement
> both in both cases.
>
> Alex
>
> On Mon, 18 Oct 2021, 04:15 August Nagro, <augustnagro at gmail.com> wrote:
>
>> Hello; I recently implemented async/await in Vertx using Project Loom.
>>
>> Feedback and code review are very welcome. The project is only about 100
>> lines of code. Hopefully something similar could be merged into
>> `vertx-core` when Loom is released.
>>
>> https://github.com/AugustNagro/vertx-loom
>>
>> Cheers,
>>
>> August
>>
>

From duke at openjdk.java.net  Wed Oct 27 08:59:03 2021
From: duke at openjdk.java.net (duke)
Date: Wed, 27 Oct 2021 08:59:03 GMT
Subject: git: openjdk/loom: fibers: fixed regression caused failures of
 serviceability/jvmti/RedefineClasses tests
Message-ID: <5a9e9942-7358-4f88-83a6-d0c4b95f7eaa@openjdk.java.net>

Changeset: 4bca5260
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-10-27 08:57:49 +0000
URL:       https://git.openjdk.java.net/loom/commit/4bca526042d319fc2ec2b7e63806c6afeb3b6e3d

fixed regression caused failures of serviceability/jvmti/RedefineClasses tests

! src/java.base/share/classes/java/lang/VirtualThread.java


From duke at openjdk.java.net  Wed Oct 27 20:24:24 2021
From: duke at openjdk.java.net (duke)
Date: Wed, 27 Oct 2021 20:24:24 GMT
Subject: git: openjdk/loom: fibers: 2 new changesets
Message-ID: <afa995e2-5968-4726-a946-9be0ea954c26@openjdk.java.net>

Changeset: 0168e324
Author:    lmesnik <leonid.mesnik at oracle.com>
Date:      2021-10-27 14:23:07 +0000
URL:       https://git.openjdk.java.net/loom/commit/0168e324d392c745d93ac7d39e958e98aa80e618

jtregMW version bumped

! make/conf/jib-profiles.js

Changeset: edc6c808
Author:    lmesnik <leonid.mesnik at oracle.com>
Date:      2021-10-27 14:23:44 +0000
URL:       https://git.openjdk.java.net/loom/commit/edc6c808a7af3e7f9fd60954e6f31409f82c89c4

Merge branch 'fibers' of https://github.com/openjdk/loom into fibers

! make/conf/jib-profiles.js
! make/conf/jib-profiles.js


From duke at openjdk.java.net  Thu Oct 28 14:27:08 2021
From: duke at openjdk.java.net (duke)
Date: Thu, 28 Oct 2021 14:27:08 GMT
Subject: git: openjdk/loom: fibers: 3 new changesets
Message-ID: <85a76fe6-8ba2-4da4-b366-b6324512a78e@openjdk.java.net>

Changeset: 1373ab17
Author:    lmesnik <leonid.mesnik at oracle.com>
Date:      2021-10-26 21:06:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/1373ab17f7e59e645e18edf6ed0021769d5a3af4

delete added.

! src/hotspot/share/prims/jvmtiEnv.cpp

Changeset: 55c9d60f
Author:    lmesnik <leonid.mesnik at oracle.com>
Date:      2021-10-26 22:30:49 +0000
URL:       https://git.openjdk.java.net/loom/commit/55c9d60fad90b5dd477e9c39d324cb770cfb401f

fx

! src/hotspot/share/prims/jvmtiEnv.cpp
! src/hotspot/share/prims/jvmtiEnvBase.cpp
! src/hotspot/share/prims/jvmtiEnvBase.hpp

Changeset: 0cd786bf
Author:    lmesnik <leonid.mesnik at oracle.com>
Date:      2021-10-28 08:22:51 +0000
URL:       https://git.openjdk.java.net/loom/commit/0cd786bf9764bd9f062558426b9274263250ecdd

Merge branch 'fibers' of https://github.com/openjdk/loom into cthread_with_continuation



From duke at openjdk.java.net  Fri Oct 29 08:26:00 2021
From: duke at openjdk.java.net (Miao Zheng)
Date: Fri, 29 Oct 2021 08:26:00 GMT
Subject: RFR: Ensure compensate when ForkJoinWorkerThread is pinned
Message-ID: <meT8bud5rT9_nHHcSNT-pptXWJzKBNoxNAZPHR49QD4=.bb9c48b5-2cbb-4c0f-8f69-e0018d56b485@github.com>

Hello,
We have a test case about Loom, it can pass before;
The test case can be seen on this PR;
 
But it cannot pass after this patch:

commit de90a43c7a5f0b28bd0af9271de210475808ca0c
Author: Alan Bateman <alan.bateman at oracle.com>
Date:   Wed Sep 1 09:22:23 2021 +0100
 
    Replace lock/condition objects to simplify pinned park

 
Actually, this modify cause the test fail, because getCondition.await() will call tryCompensate() of ForkJoinPool eventually:

+    private void parkOnCarrierThread(long nanos) {

-                if (!parkPermit) {
-                    // wait to be signalled or interrupted
-                    getCondition().await();

+            if (!parkPermit) {
+                U.park(false, nanos);
             }
``` 
If ForkJoinWorkerThread are all pinned, how to make vt work correct?

Thanks?

Miao

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

Commit messages:
 - Ensure compensate when ForkJoinWorkerThread is pinned

Changes: https://git.openjdk.java.net/loom/pull/80/files
 Webrev: https://webrevs.openjdk.java.net/?repo=loom&pr=80&range=00
  Stats: 87 lines in 1 file changed: 87 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/loom/pull/80.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/80/head:pull/80

PR: https://git.openjdk.java.net/loom/pull/80

From duke at openjdk.java.net  Fri Oct 29 13:03:50 2021
From: duke at openjdk.java.net (duke)
Date: Fri, 29 Oct 2021 13:03:50 GMT
Subject: git: openjdk/loom: fibers: 6 new changesets
Message-ID: <9f387697-23f7-4a29-a3f7-c80124d4e2d4@openjdk.java.net>

Changeset: 0631c640
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-26 13:44:13 +0000
URL:       https://git.openjdk.java.net/loom/commit/0631c640944e47dfe981294d07575222edcb51cc

Remove remaining uses of VH

! src/java.base/share/classes/java/lang/VirtualThread.java

Changeset: 5e77a1a1
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-26 17:34:03 +0000
URL:       https://git.openjdk.java.net/loom/commit/5e77a1a11193705253f7e04ed3aa907e9c03ac4d

Rename to resultNow and exceptionNow

! src/java.base/share/classes/java/util/concurrent/CompletableFuture.java
! src/java.base/share/classes/java/util/concurrent/ForkJoinTask.java
! src/java.base/share/classes/java/util/concurrent/Future.java
! src/java.base/share/classes/java/util/concurrent/FutureTask.java
! test/jdk/java/lang/Thread/virtual/ThreadPerTaskExecutorTest.java
! test/jdk/java/util/concurrent/Future/DefaultMethods.java

Changeset: e88f1de5
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-28 12:31:13 +0000
URL:       https://git.openjdk.java.net/loom/commit/e88f1de5e1de7fd5c230fe5e25928108b43630dd

Refactoring/cleanup of TC infrastructure to make it more general

! src/java.base/share/classes/java/lang/System.java
! src/java.base/share/classes/java/lang/Thread.java
! src/java.base/share/classes/java/lang/VirtualThread.java
! src/java.base/share/classes/jdk/internal/access/JavaLangAccess.java
! src/java.base/share/classes/jdk/internal/vm/SharedThreadContainer.java
+ src/java.base/share/classes/jdk/internal/vm/StackableScope.java
! src/java.base/share/classes/jdk/internal/vm/ThreadContainer.java
! src/java.base/share/classes/jdk/internal/vm/ThreadContainers.java

Changeset: 03b41ff4
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-29 08:14:42 +0000
URL:       https://git.openjdk.java.net/loom/commit/03b41ff40c8e501b433b23fe405f3fb25f7b66be

Improve exceptions

! src/java.base/share/classes/java/util/concurrent/Future.java

Changeset: 75ff309e
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-29 12:33:21 +0000
URL:       https://git.openjdk.java.net/loom/commit/75ff309ead29bf5095f0f12a055571415f2d5ac2

More exception messages

! src/java.base/share/classes/java/util/concurrent/Future.java
! src/java.base/share/classes/java/util/concurrent/FutureTask.java

Changeset: f3dd9cf6
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-29 12:33:55 +0000
URL:       https://git.openjdk.java.net/loom/commit/f3dd9cf60484c92a10e168f769a13fee87922898

Remove Upcall from exclude list

! test/jdk/ProblemList.txt


From duke at openjdk.java.net  Fri Oct 29 16:10:36 2021
From: duke at openjdk.java.net (duke)
Date: Fri, 29 Oct 2021 16:10:36 GMT
Subject: git: openjdk/loom: fibers: Add an additional ReferenceQueue
 implementation that uses native monitors.
Message-ID: <0147616f-7710-401c-b3f0-a721eb07202c@openjdk.java.net>

Changeset: ba6e2afe
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2021-10-29 13:49:21 +0000
URL:       https://git.openjdk.java.net/loom/commit/ba6e2afe31507bf563d8240e27481c0e8c640f0e

Add an additional ReferenceQueue implementation that uses native monitors.

! src/java.base/share/classes/java/lang/invoke/MethodType.java
! src/java.base/share/classes/java/lang/ref/Finalizer.java
+ src/java.base/share/classes/java/lang/ref/NativeReferenceQueue.java
! src/java.base/share/classes/java/lang/ref/Reference.java
! src/java.base/share/classes/java/lang/ref/ReferenceQueue.java
! src/java.base/share/classes/jdk/internal/access/JavaLangRefAccess.java


From ron.pressler at oracle.com  Fri Oct 29 18:42:20 2021
From: ron.pressler at oracle.com (Ron Pressler)
Date: Fri, 29 Oct 2021 18:42:20 +0000
Subject: RFR: Ensure compensate when ForkJoinWorkerThread is pinned
In-Reply-To: <meT8bud5rT9_nHHcSNT-pptXWJzKBNoxNAZPHR49QD4=.bb9c48b5-2cbb-4c0f-8f69-e0018d56b485@github.com>
References: <meT8bud5rT9_nHHcSNT-pptXWJzKBNoxNAZPHR49QD4=.bb9c48b5-2cbb-4c0f-8f69-e0018d56b485@github.com>
Message-ID: <52A74C31-E2B3-4D9A-950A-3A8539D5AC61@oracle.com>

Hi.

The problem here isn?t that all of the scheduler?s workers are pinned, but that
the pinned threads can only be unblocked by another, unpinned, virtual thread. 
You might reasonably have 100K threads waiting, and no amount of compensation 
would help. As it is, compensation would only help up until the upper FJPool limit, 
which is quite low.

It makes sense to try and compensate when there?s a good chance the pinned thread 
is waiting for some other pinned thread, a platform thread, or an OS operation, and so 
we can smooth over minor and temporary disturbances. But cases like yours are 
fundamentally unbounded.

In light of that, I think the current behaviour is the right one. With compensation, 
the problem would manifest when you have ~300 threads rather than ~10, but given
that virtual threads are intended to be used when there?s need for many thousands
of them, compensation for arbitrary pinning is unlikely to significantly help in 
real-world instances. Worse ? my fear is that it might make problems that could 
manifest in production harder to spot in testing.

The solution is to rely on the available diagnostics to identify the problem in the 
program ? that a virtual thread can wait for another virtual thread while pinned
? and fix it.

? Ron

> On 29 Oct 2021, at 09:26, Miao Zheng <duke at openjdk.java.net> wrote:
> 
> Hello,
> We have a test case about Loom, it can pass before;
> The test case can be seen on this PR;
> 
> But it cannot pass after this patch:
> 
> commit de90a43c7a5f0b28bd0af9271de210475808ca0c
> Author: Alan Bateman <alan.bateman at oracle.com>
> Date:   Wed Sep 1 09:22:23 2021 +0100
> 
>    Replace lock/condition objects to simplify pinned park
> 
> 
> Actually, this modify cause the test fail, because getCondition.await() will call tryCompensate() of ForkJoinPool eventually:
> 
> +    private void parkOnCarrierThread(long nanos) {
> 
> -                if (!parkPermit) {
> -                    // wait to be signalled or interrupted
> -                    getCondition().await();
> 
> +            if (!parkPermit) {
> +                U.park(false, nanos);
>             }
> ``` 
> If ForkJoinWorkerThread are all pinned, how to make vt work correct?
> 
> Thanks?
> 
> Miao
> 
> -------------
> 
> Commit messages:
> - Ensure compensate when ForkJoinWorkerThread is pinned
> 
> Changes: https://git.openjdk.java.net/loom/pull/80/files
> Webrev: https://webrevs.openjdk.java.net/?repo=loom&pr=80&range=00
>  Stats: 87 lines in 1 file changed: 87 ins; 0 del; 0 mod
>  Patch: https://git.openjdk.java.net/loom/pull/80.diff
>  Fetch: git fetch https://git.openjdk.java.net/loom pull/80/head:pull/80
> 
> PR: https://git.openjdk.java.net/loom/pull/80


From duke at openjdk.java.net  Sun Oct 31 09:10:15 2021
From: duke at openjdk.java.net (duke)
Date: Sun, 31 Oct 2021 09:10:15 GMT
Subject: git: openjdk/loom: fibers: 3 new changesets
Message-ID: <b57ef61b-6c4d-41be-ae83-5192d539480c@openjdk.java.net>

Changeset: 83060468
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-30 08:20:38 +0000
URL:       https://git.openjdk.java.net/loom/commit/83060468b36e15bdb1cda0dbc6f288f034112b82

Remove fixed test from exclude list

! test/hotspot/jtreg/ProblemList.txt

Changeset: 8ddd4cdf
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-30 16:03:56 +0000
URL:       https://git.openjdk.java.net/loom/commit/8ddd4cdf7f035a1a252856e6594bfb6fe3127886

Replace use of TG.stop

! src/java.desktop/share/classes/sun/awt/AppContext.java
! test/jdk/ProblemList.txt

Changeset: bf5ac544
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-31 08:02:30 +0000
URL:       https://git.openjdk.java.net/loom/commit/bf5ac544ce7796a80adaffb93e738fd31589085a

Send JFR therad start/end event on vthread

! src/java.base/share/classes/java/lang/VirtualThread.java
! test/jdk/ProblemList.txt
! test/jdk/jdk/jfr/api/consumer/TestRecordedEventGetThread.java
! test/jdk/jdk/jfr/api/consumer/TestRecordedEventGetThreadOther.java
! test/jdk/jdk/jfr/event/runtime/LatchedThread.java
! test/jdk/jdk/jfr/event/runtime/TestVirtualThreadEndEvent.java
! test/jdk/jdk/jfr/event/runtime/TestVirtualThreadStartEvent.java


From emoryzheng at tencent.com  Thu Oct 28 03:00:28 2021
From: emoryzheng at tencent.com (=?utf-8?B?ZW1vcnl6aGVuZyjpg5Hmt7wp?=)
Date: Thu, 28 Oct 2021 03:00:28 -0000
Subject: Compensate when Pinned
Message-ID: <E2AA7DDC-ECDD-4966-9436-6ECC3CF8DFCF@tencent.com>

Hello,
We have a test case about Loom, it can pass before;
The test case can be seen on attach file;

But it cannot pass after this patch:
```
commit de90a43c7a5f0b28bd0af9271de210475808ca0c
Author: Alan Bateman <alan.bateman at oracle.com>
Date:   Wed Sep 1 09:22:23 2021 +0100

    Replace lock/condition objects to simplify pinned park
```

Actually, this modify cause the test fail, because getCondition.await() will call tryCompensate() of ForkJoinPool eventually:
+    private void parkOnCarrierThread(long nanos) {
???
-                if (!parkPermit) {
-                    // wait to be signalled or interrupted
-                    getCondition().await();
???
+            if (!parkPermit) {
+                U.park(false, nanos);
             }

If there are 4 ForkJoinWorkerThread, and they are all pinned, how to make vt work correct?

Thanks?

Miao