From davidalayachew at gmail.com  Fri Aug  1 05:05:15 2025
From: davidalayachew at gmail.com (David Alayachew)
Date: Fri, 1 Aug 2025 01:05:15 -0400
Subject: Bikeshedding Structured Concurrency
Message-ID: <CAA9v-_P1kTd9RxqieXkfG-DjX60m5Oga--=7LjZ7L3LnUX5O=A@mail.gmail.com>

Hello @loom-dev <loom-dev at openjdk.org>,

I have been enjoying the Structured Concurrency JEP's as they have come,
and I am excited to try the JDK 25 variant with all the new changes with
Joiner.

I have a bikeshed request.

For Subtask, can we change the method name from exception() to throwable()?
It more accurately describes what is happening.

Thank you for your time and help.
David Alayachew
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From liangchenblue at gmail.com  Fri Aug  1 05:23:34 2025
From: liangchenblue at gmail.com (Chen Liang)
Date: Fri, 1 Aug 2025 00:23:34 -0500
Subject: Bikeshedding Structured Concurrency
In-Reply-To: <CAA9v-_P1kTd9RxqieXkfG-DjX60m5Oga--=7LjZ7L3LnUX5O=A@mail.gmail.com>
References: <CAA9v-_P1kTd9RxqieXkfG-DjX60m5Oga--=7LjZ7L3LnUX5O=A@mail.gmail.com>
Message-ID: <CABe8uE16pkpkQnPpvqODxVq7Su-8Zh-jsru_5EjnGD1+A3hGmA@mail.gmail.com>

Hi David, I think it is a convention to use the lowercased "exception" to
refer to all throwable. This is for example seen in the title of JLS 11.

On Fri, Aug 1, 2025, 00:06 David Alayachew <davidalayachew at gmail.com> wrote:

> Hello @loom-dev <loom-dev at openjdk.org>,
>
> I have been enjoying the Structured Concurrency JEP's as they have come,
> and I am excited to try the JDK 25 variant with all the new changes with
> Joiner.
>
> I have a bikeshed request.
>
> For Subtask, can we change the method name from exception() to
> throwable()? It more accurately describes what is happening.
>
> Thank you for your time and help.
> David Alayachew
>
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From davidalayachew at gmail.com  Fri Aug  1 05:33:08 2025
From: davidalayachew at gmail.com (David Alayachew)
Date: Fri, 1 Aug 2025 01:33:08 -0400
Subject: Bikeshedding Structured Concurrency
In-Reply-To: <CABe8uE16pkpkQnPpvqODxVq7Su-8Zh-jsru_5EjnGD1+A3hGmA@mail.gmail.com>
References: <CAA9v-_P1kTd9RxqieXkfG-DjX60m5Oga--=7LjZ7L3LnUX5O=A@mail.gmail.com>
 <CABe8uE16pkpkQnPpvqODxVq7Su-8Zh-jsru_5EjnGD1+A3hGmA@mail.gmail.com>
Message-ID: <CAA9v-_Ng+K2CPE4j0oUdWbCE11M8wFHC2zVmA3xjF8K1L3eybA@mail.gmail.com>

Hello Chen.

I'd agree with you if we were describing a parameter. But when describing
what we are returning, I think it causes needless confusion.

Remember, STS will catch ALL THROWABLES and serve them via that method.
That includes things like OOME and StackOverflowError. I imagine that most
developers would appreciate having the method name be throwable() if stuff
like those can come down the pipe.

On Fri, Aug 1, 2025 at 1:23?AM Chen Liang <liangchenblue at gmail.com> wrote:

> Hi David, I think it is a convention to use the lowercased "exception" to
> refer to all throwable. This is for example seen in the title of JLS 11.
>
> On Fri, Aug 1, 2025, 00:06 David Alayachew <davidalayachew at gmail.com>
> wrote:
>
>> Hello @loom-dev <loom-dev at openjdk.org>,
>>
>> I have been enjoying the Structured Concurrency JEP's as they have come,
>> and I am excited to try the JDK 25 variant with all the new changes with
>> Joiner.
>>
>> I have a bikeshed request.
>>
>> For Subtask, can we change the method name from exception() to
>> throwable()? It more accurately describes what is happening.
>>
>> Thank you for your time and help.
>> David Alayachew
>>
>
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From alan.bateman at oracle.com  Fri Aug  1 08:28:04 2025
From: alan.bateman at oracle.com (Alan Bateman)
Date: Fri, 1 Aug 2025 09:28:04 +0100
Subject: Bikeshedding Structured Concurrency
In-Reply-To: <CAA9v-_P1kTd9RxqieXkfG-DjX60m5Oga--=7LjZ7L3LnUX5O=A@mail.gmail.com>
References: <CAA9v-_P1kTd9RxqieXkfG-DjX60m5Oga--=7LjZ7L3LnUX5O=A@mail.gmail.com>
Message-ID: <2200f0bd-5b06-4fae-96f0-d80e59a3f154@oracle.com>

On 01/08/2025 06:05, David Alayachew wrote:
> Hello @loom-dev <mailto:loom-dev at openjdk.org>,
>
> I have been enjoying the Structured Concurrency JEP's as they have 
> come, and I am excited to try the JDK 25 variant with all the new 
> changes with Joiner.
>
> I have a bikeshed request.
>
> For Subtask, can we change the method name from exception() to 
> throwable()? It more accurately describes what is happening.
>

In j.u.concurrent there is 
CompletableFuture.completeExceptionally(Throwable)/obtrudeException(Throwable), 
SubmissionPublisher.closeExceptionally(Throwable), 
ForkJoinTask.getException and Future.exceptionNow() returning a 
Throwable, and a few more.

The main use of Subtask::exception will be a custom Joiner's onComplete 
implementation where handles the exception or error when the subtask 
fails. There is an argument that fork should be void or just return a 
Supplier (Subtask extends Supplier) but there hasn't been enough 
feedback from real-world usage to help that discussion.

-Alan
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From alan.bateman at oracle.com  Fri Aug  1 08:28:04 2025
From: alan.bateman at oracle.com (Alan Bateman)
Date: Fri, 1 Aug 2025 09:28:04 +0100
Subject: Bikeshedding Structured Concurrency
In-Reply-To: <CAA9v-_P1kTd9RxqieXkfG-DjX60m5Oga--=7LjZ7L3LnUX5O=A@mail.gmail.com>
References: <CAA9v-_P1kTd9RxqieXkfG-DjX60m5Oga--=7LjZ7L3LnUX5O=A@mail.gmail.com>
Message-ID: <2200f0bd-5b06-4fae-96f0-d80e59a3f154@oracle.com>

On 01/08/2025 06:05, David Alayachew wrote:
> Hello @loom-dev <mailto:loom-dev at openjdk.org>,
>
> I have been enjoying the Structured Concurrency JEP's as they have 
> come, and I am excited to try the JDK 25 variant with all the new 
> changes with Joiner.
>
> I have a bikeshed request.
>
> For Subtask, can we change the method name from exception() to 
> throwable()? It more accurately describes what is happening.
>

In j.u.concurrent there is 
CompletableFuture.completeExceptionally(Throwable)/obtrudeException(Throwable), 
SubmissionPublisher.closeExceptionally(Throwable), 
ForkJoinTask.getException and Future.exceptionNow() returning a 
Throwable, and a few more.

The main use of Subtask::exception will be a custom Joiner's onComplete 
implementation where handles the exception or error when the subtask 
fails. There is an argument that fork should be void or just return a 
Supplier (Subtask extends Supplier) but there hasn't been enough 
feedback from real-world usage to help that discussion.

-Alan
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From forax at univ-mlv.fr  Fri Aug  1 08:47:16 2025
From: forax at univ-mlv.fr (Remi Forax)
Date: Fri, 1 Aug 2025 10:47:16 +0200 (CEST)
Subject: Bikeshedding Structured Concurrency
In-Reply-To: <2200f0bd-5b06-4fae-96f0-d80e59a3f154@oracle.com>
References: <CAA9v-_P1kTd9RxqieXkfG-DjX60m5Oga--=7LjZ7L3LnUX5O=A@mail.gmail.com>
 <2200f0bd-5b06-4fae-96f0-d80e59a3f154@oracle.com>
Message-ID: <291516440.7085975.1754038036074.JavaMail.zimbra@univ-eiffel.fr>

> From: "Alan Bateman" <alan.bateman at oracle.com>
> To: "David Alayachew" <davidalayachew at gmail.com>, "loom-dev"
> <loom-dev at openjdk.org>
> Sent: Friday, August 1, 2025 10:28:04 AM
> Subject: Re: Bikeshedding Structured Concurrency

> On 01/08/2025 06:05, David Alayachew wrote:

>> Hello [ mailto:loom-dev at openjdk.org | @loom-dev ] ,

>> I have been enjoying the Structured Concurrency JEP's as they have come, and I
>> am excited to try the JDK 25 variant with all the new changes with Joiner.

>> I have a bikeshed request.

>> For Subtask, can we change the method name from exception() to throwable()? It
>> more accurately describes what is happening.

> In j.u.concurrent there is
> CompletableFuture.completeExceptionally(Throwable)/obtrudeException(Throwable),
> SubmissionPublisher.closeExceptionally(Throwable), ForkJoinTask.getException
> and Future.exceptionNow() returning a Throwable, and a few more.
yes, also Future.exceptionNow(). 

> The main use of Subtask::exception will be a custom Joiner's onComplete
> implementation where handles the exception or error when the subtask fails.
> There is an argument that fork should be void or just return a Supplier
> (Subtask extends Supplier) but there hasn't been enough feedback from
> real-world usage to help that discussion.

> -Alan

R?mi 
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From duke at openjdk.org  Fri Aug  1 11:15:34 2025
From: duke at openjdk.org (duke)
Date: Fri, 1 Aug 2025 11:15:34 GMT
Subject: git: openjdk/loom: fibers: 35 new changesets
Message-ID: <430f6ea8-f759-4fc0-bb25-c1e83423f0f7@openjdk.org>

Changeset: 3bdac531
Branch: fibers
Author:    Rajan Halade <rhalade at openjdk.org>
Date:      2025-07-30 17:56:00 +0000
URL:       https://git.openjdk.org/loom/commit/3bdac5317815b84d6f693d972f73d77dd069a891

8361212: Remove AffirmTrust root CAs

Reviewed-by: mullan

! src/java.base/share/classes/sun/security/validator/EntrustTLSPolicy.java
- src/java.base/share/data/cacerts/affirmtrustcommercialca
- src/java.base/share/data/cacerts/affirmtrustnetworkingca
- src/java.base/share/data/cacerts/affirmtrustpremiumca
- src/java.base/share/data/cacerts/affirmtrustpremiumeccca
! test/jdk/security/infra/java/security/cert/CertPathValidator/certification/CAInterop.java
! test/jdk/sun/security/lib/cacerts/VerifyCACerts.java
! test/jdk/sun/security/ssl/X509TrustManagerImpl/distrust/Entrust.java
- test/jdk/sun/security/ssl/X509TrustManagerImpl/distrust/chains/entrust/affirmtrustcommercialca-chain.pem
- test/jdk/sun/security/ssl/X509TrustManagerImpl/distrust/chains/entrust/affirmtrustnetworkingca-chain.pem
- test/jdk/sun/security/ssl/X509TrustManagerImpl/distrust/chains/entrust/affirmtrustpremiumca-chain.pem
- test/jdk/sun/security/ssl/X509TrustManagerImpl/distrust/chains/entrust/affirmtrustpremiumeccca-chain.pem

Changeset: 413ac74e
Branch: fibers
Author:    Koushik Thirupattur <koushik.thirupattur at oracle.com>
Committer: Sean Mullan <mullan at openjdk.org>
Date:      2025-07-30 19:56:38 +0000
URL:       https://git.openjdk.org/loom/commit/413ac74ecc225ff2cd7a729204a9c7a95dc48458

8357682: sun.security.provider.certpath.Builder#getMatchingPolicies always returns null

Reviewed-by: mullan

! src/java.base/share/classes/sun/security/provider/certpath/Builder.java

Changeset: 559795b0
Branch: fibers
Author:    SendaoYan <syan at openjdk.org>
Date:      2025-07-31 01:38:25 +0000
URL:       https://git.openjdk.org/loom/commit/559795b0eb8061325127fa9fdf8b80617fe47166

8362501: Update test/hotspot/jtreg/applications/jcstress/README

Reviewed-by: shade, lmesnik

! test/hotspot/jtreg/applications/jcstress/README

Changeset: 05c63e80
Branch: fibers
Author:    Alexander Zvegintsev <azvegint at openjdk.org>
Date:      2025-07-31 06:04:22 +0000
URL:       https://git.openjdk.org/loom/commit/05c63e80091d554625c5b6fc8c9f6973ef19ec4f

8361524: [XWayland] possible JavaFX interop hang

Reviewed-by: psadhukhan, serb, prr, kizune, kcr

! src/java.desktop/unix/native/libawt_xawt/awt/screencast_portal.c

Changeset: ebb7f5d3
Branch: fibers
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2025-07-31 06:07:17 +0000
URL:       https://git.openjdk.org/loom/commit/ebb7f5d39be8497fc89e25d0905335102e12c063

8364111: InstanceMirrorKlass iterators should handle CDS and hidden classes consistently

Reviewed-by: stuefe, ayang, coleenp

! src/hotspot/share/oops/instanceMirrorKlass.hpp
! src/hotspot/share/oops/instanceMirrorKlass.inline.hpp

Changeset: b9f7caed
Branch: fibers
Author:    Joel Sikstr?m <jsikstro at openjdk.org>
Date:      2025-07-31 07:40:22 +0000
URL:       https://git.openjdk.org/loom/commit/b9f7caed775e86e71f7d37789cb196fb1444ef12

8364282: ZGC: Improve ZPageAllocation JFR event sending

Reviewed-by: stefank, aboldtch

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

Changeset: 8ed214f3
Branch: fibers
Author:    Yasumasa Suenaga <ysuenaga at openjdk.org>
Date:      2025-07-31 12:10:43 +0000
URL:       https://git.openjdk.org/loom/commit/8ed214f3b1864ea0095d05497f782ce4131836d4

8364090: Dump JFR recording on CrashOnOutOfMemoryError

Reviewed-by: egahlin, stuefe

! src/hotspot/share/jfr/jfr.cpp
! src/hotspot/share/jfr/jfr.hpp
! src/hotspot/share/jfr/recorder/repository/jfrEmergencyDump.cpp
! src/hotspot/share/jfr/recorder/repository/jfrEmergencyDump.hpp
! src/hotspot/share/runtime/java.cpp
! src/hotspot/share/utilities/vmError.cpp
+ test/jdk/jdk/jfr/event/oldobject/TestEmergencyDumpAtOOM.java

Changeset: ddb64836
Branch: fibers
Author:    Manuel H?ssig <mhaessig at openjdk.org>
Date:      2025-07-31 12:12:15 +0000
URL:       https://git.openjdk.org/loom/commit/ddb64836e5bafededb705329137e353f8c74dd5d

8364409: [BACKOUT] Consolidate Identity of self-inverse operations

Reviewed-by: thartmann, bmaillard, hgreule

! src/hotspot/share/opto/subnode.cpp
! src/hotspot/share/opto/subnode.hpp
- test/hotspot/jtreg/compiler/c2/irTests/InvolutionIdentityTests.java
! test/hotspot/jtreg/compiler/lib/ir_framework/IRNode.java

Changeset: 3f21c8bd
Branch: fibers
Author:    Axel Boldt-Christmas <aboldtch at openjdk.org>
Date:      2025-07-31 13:08:29 +0000
URL:       https://git.openjdk.org/loom/commit/3f21c8bd1f0cd7f27df940505b249ba7798940cf

8361897: gc/z/TestUncommit.java fails with Uncommitted too slow

Reviewed-by: stefank, jsikstro

! test/hotspot/jtreg/gc/z/TestUncommit.java

Changeset: 458f033d
Branch: fibers
Author:    Lei Zhu <korov9.c at gmail.com>
Committer: Kevin Walls <kevinw at openjdk.org>
Date:      2025-07-31 13:11:59 +0000
URL:       https://git.openjdk.org/loom/commit/458f033d4dd3c646028b2f9bab88f9a308cad4af

8362533: Tests sun/management/jmxremote/bootstrap/* duplicate VM flags

Reviewed-by: lmesnik, sspitsyn, kevinw

! test/jdk/sun/management/jmxremote/bootstrap/AbstractFilePermissionTest.java
! test/jdk/sun/management/jmxremote/bootstrap/LocalManagementTest.java
! test/jdk/sun/management/jmxremote/bootstrap/RmiRegistrySslTest.java

Changeset: e544cd99
Branch: fibers
Author:    Artur Barashev <abarashev at openjdk.org>
Date:      2025-07-31 13:57:19 +0000
URL:       https://git.openjdk.org/loom/commit/e544cd992099ef905266610c2c1456705cdc4587

8359956: Support algorithm constraints and certificate checks in SunX509 key manager

Reviewed-by: mullan

! src/java.base/share/classes/sun/security/ssl/SunX509KeyManagerImpl.java
+ src/java.base/share/classes/sun/security/ssl/X509KeyManagerCertChecking.java
! src/java.base/share/classes/sun/security/ssl/X509KeyManagerImpl.java
! test/jdk/javax/rmi/ssl/SSLSocketParametersTest.java
- test/jdk/javax/rmi/ssl/keystore
- test/jdk/javax/rmi/ssl/truststore
! test/jdk/sun/net/www/protocol/https/HttpsClient/ServerIdentityTest.java
- test/jdk/sun/net/www/protocol/https/HttpsClient/dnsstore
- test/jdk/sun/net/www/protocol/https/HttpsClient/ipstore
! test/jdk/sun/security/mscapi/ShortRSAKeyWithinTLS.java
! test/jdk/sun/security/ssl/SignatureScheme/MD5NotAllowedInTLS13CertificateSignature.java
+ test/jdk/sun/security/ssl/X509KeyManager/AlgorithmConstraintsCheck.java
+ test/jdk/sun/security/ssl/X509KeyManager/CertChecking.java
+ test/jdk/sun/security/ssl/X509KeyManager/PeerConstraintsCheck.java
! test/jdk/sun/security/ssl/X509TrustManagerImpl/PKIXExtendedTM.java
! test/jdk/sun/security/tools/keytool/PrintSSL.java
! test/lib/jdk/test/lib/security/CertificateBuilder.java

Changeset: 5f357fa2
Branch: fibers
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-07-31 14:08:40 +0000
URL:       https://git.openjdk.org/loom/commit/5f357fa27d89a3ead3783a3197ba4c576802cb7a

8364197: G1: Sort G1 mutex locks by name and group them together

Reviewed-by: coleenp, ayang

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

Changeset: d4705947
Branch: fibers
Author:    DarraghConway <darragh.conway at oracle.com>
Committer: Roger Riggs <rriggs at openjdk.org>
Date:      2025-07-31 14:41:13 +0000
URL:       https://git.openjdk.org/loom/commit/d4705947d89509b235cf48328014331c9c6cee80

8360408: [TEST] Use @requires tag instead of exiting based on "os.name" property value for sun/net/www/protocol/file/FileURLTest.java

Reviewed-by: vyazici, rriggs

! test/jdk/sun/net/www/protocol/file/FileURLTest.java

Changeset: 53d152e7
Branch: fibers
Author:    Francesco Andreuzzi <andreuzzi.francesco at gmail.com>
Committer: Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-07-31 14:43:10 +0000
URL:       https://git.openjdk.org/loom/commit/53d152e7dbccae9682e461e51ca75d63f88893cf

8364087: Amend comment in globalDefinitions.hpp on "classfile_constants.h" include

Reviewed-by: stefank, ayang

! src/hotspot/share/utilities/globalDefinitions.hpp

Changeset: b2b56cfc
Branch: fibers
Author:    Weijun Wang <weijun at openjdk.org>
Date:      2025-07-31 14:45:31 +0000
URL:       https://git.openjdk.org/loom/commit/b2b56cfc00ab258c41d468040015bb2dcc6ec289

8359395: XML signature generation does not support user provided SecureRandom

Reviewed-by: mullan

! src/java.xml.crypto/share/classes/javax/xml/crypto/dsig/dom/DOMSignContext.java
! src/java.xml.crypto/share/classes/org/jcp/xml/dsig/internal/dom/DOMRSAPSSSignatureMethod.java
! src/java.xml.crypto/share/classes/org/jcp/xml/dsig/internal/dom/DOMSignatureMethod.java
+ test/jdk/javax/xml/crypto/dsig/Properties.java

Changeset: 1b9efaa1
Branch: fibers
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2025-07-31 15:17:51 +0000
URL:       https://git.openjdk.org/loom/commit/1b9efaa11e660317240bdeda7527b23c7d52da0f

8364183: Shenandoah: Improve commit/uncommit handling

Reviewed-by: wkemper, xpeng

! src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp
! src/hotspot/share/gc/shenandoah/shenandoahHeap.hpp
! src/hotspot/share/gc/shenandoah/shenandoahHeapRegion.cpp

Changeset: c4fbfa21
Branch: fibers
Author:    Anton Artemov <anton.artemov at oracle.com>
Committer: Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-07-31 15:39:38 +0000
URL:       https://git.openjdk.org/loom/commit/c4fbfa21030c9a0e8a3e0eed1b0a0988eba08ddb

8363949: Incorrect jtreg header in MonitorWithDeadObjectTest.java

Reviewed-by: stefank, coleenp, ayang

! test/hotspot/jtreg/runtime/Monitor/MonitorWithDeadObjectTest.java

Changeset: d1944239
Branch: fibers
Author:    Johannes Graham <j3graham at gmail.com>
Committer: Raffaello Giulietti <rgiulietti at openjdk.org>
Date:      2025-07-31 17:50:18 +0000
URL:       https://git.openjdk.org/loom/commit/d19442399c004c78bff8a5ccf7c6975c7e583a07

8358880: Performance of parsing with DecimalFormat can be improved

Reviewed-by: jlu, liach, rgiulietti

! src/java.base/share/classes/java/text/DigitList.java
! src/java.base/share/classes/jdk/internal/math/FloatingDecimal.java
! test/jdk/java/text/Format/DecimalFormat/CloneTest.java
+ test/micro/org/openjdk/bench/java/text/DecimalFormatParseBench.java

Changeset: fe09e93b
Branch: fibers
Author:    Chen Liang <liach at openjdk.org>
Date:      2025-07-31 18:26:28 +0000
URL:       https://git.openjdk.org/loom/commit/fe09e93b8fc3081c944f3824fdaa55cc17e377a8

8364317: Explicitly document some assumptions of StringUTF16

Reviewed-by: rgiulietti, rriggs, vyazici

! src/java.base/share/classes/java/lang/StringUTF16.java

Changeset: 443afdc7
Branch: fibers
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-07-31 18:52:44 +0000
URL:       https://git.openjdk.org/loom/commit/443afdc77ffb9184a985ec586c888eabe9ee8e6f

8364176: Serial: Group all class unloading logic at the end of marking phase

Reviewed-by: tschatzl, sangheki

! src/hotspot/share/gc/serial/serialFullGC.cpp
! src/hotspot/share/gc/serial/serialHeap.cpp

Changeset: e0e82066
Branch: fibers
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-07-31 18:53:07 +0000
URL:       https://git.openjdk.org/loom/commit/e0e82066fec3e1efa55ecc113bb8f4efe2e0e2a0

8364166: Parallel: Remove the use of soft_ref_policy in Full GC

Reviewed-by: tschatzl, sangheki

! src/hotspot/share/gc/parallel/psParallelCompact.cpp
! src/hotspot/share/gc/parallel/psParallelCompact.hpp

Changeset: 724e8c07
Branch: fibers
Author:    Artur Barashev <abarashev at openjdk.org>
Date:      2025-07-31 21:24:09 +0000
URL:       https://git.openjdk.org/loom/commit/724e8c076e1aed05de893ef9366af0e62cc2ac2b

8364484: misc tests fail with Received fatal alert: handshake_failure

Reviewed-by: ascarpino

! test/jdk/javax/management/security/SecurityTest.java

Changeset: 913d318c
Branch: fibers
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-01 05:59:33 +0000
URL:       https://git.openjdk.org/loom/commit/913d318c97aa46c16aca89e565660e5fb67e8efd

8364504: [BACKOUT] JDK-8364176 Serial: Group all class unloading logic at the end of marking phase

Reviewed-by: dholmes

! src/hotspot/share/gc/serial/serialFullGC.cpp
! src/hotspot/share/gc/serial/serialHeap.cpp

Changeset: c9b8bd6f
Branch: fibers
Author:    Francesco Andreuzzi <andreuzzi.francesco at gmail.com>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-01 06:27:02 +0000
URL:       https://git.openjdk.org/loom/commit/c9b8bd6ff478fda23a10a6d3e04aec4478cb9ff6

8364359: Sort share/cds includes

Reviewed-by: shade, iklam

! src/hotspot/share/cds/aotClassLocation.cpp
! src/hotspot/share/cds/aotClassLocation.hpp
! src/hotspot/share/cds/aotConstantPoolResolver.hpp
! src/hotspot/share/cds/aotLinkedClassBulkLoader.hpp
! src/hotspot/share/cds/archiveUtils.hpp
! src/hotspot/share/cds/cdsEnumKlass.cpp
! src/hotspot/share/cds/cppVtables.cpp
! src/hotspot/share/cds/dumpTimeClassInfo.inline.hpp
! src/hotspot/share/cds/dynamicArchive.cpp
! src/hotspot/share/cds/filemap.cpp
! src/hotspot/share/cds/lambdaFormInvokers.inline.hpp
! src/hotspot/share/cds/metaspaceShared.cpp
! test/hotspot/jtreg/sources/TestIncludesAreSorted.java

Changeset: 577ac061
Branch: fibers
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-01 06:28:29 +0000
URL:       https://git.openjdk.org/loom/commit/577ac0610a0c62d6a3f5501bb0d1bd45f8c47f22

8358340: Support CDS heap archive with Generational Shenandoah

Reviewed-by: xpeng, wkemper

! src/hotspot/share/gc/shenandoah/shenandoahHeap.hpp

Changeset: e82d7f58
Branch: fibers
Author:    Joel Sikstr?m <jsikstro at openjdk.org>
Date:      2025-08-01 07:11:11 +0000
URL:       https://git.openjdk.org/loom/commit/e82d7f58101aa5b7147a881bfc1c96b826446758

8364351: ZGC: Replace usages of ZPageAgeRange() with ZPageAgeRangeAll

Reviewed-by: stefank, aboldtch

! src/hotspot/share/gc/z/zGeneration.cpp
! src/hotspot/share/gc/z/zObjectAllocator.cpp
! src/hotspot/share/gc/z/zPageAge.hpp
! src/hotspot/share/gc/z/zRelocationSetSelector.cpp
! src/hotspot/share/gc/z/zRelocationSetSelector.inline.hpp
! src/hotspot/share/gc/z/zStat.cpp
! test/hotspot/gtest/gc/z/test_zPageAge.cpp

Changeset: ae11d8f4
Branch: fibers
Author:    Joel Sikstr?m <jsikstro at openjdk.org>
Date:      2025-08-01 07:42:45 +0000
URL:       https://git.openjdk.org/loom/commit/ae11d8f44689502d35cb511e9ce288ab7cc0acae

8364248: Separate commit and reservation limit detection

Reviewed-by: stuefe, ayang

! src/hotspot/os/posix/os_posix.cpp
! src/hotspot/os/windows/os_windows.cpp
! src/hotspot/share/gc/z/zAddressSpaceLimit.cpp
! src/hotspot/share/runtime/arguments.cpp
! src/hotspot/share/runtime/os.hpp

Changeset: beda14e3
Branch: fibers
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-08-01 08:22:04 +0000
URL:       https://git.openjdk.org/loom/commit/beda14e3cba368b0bf9f8e4567df163cf1e648a4

8364423: G1: Refactor G1UpdateRegionLivenessAndSelectForRebuildTask

Reviewed-by: sangheki, ayang

! src/hotspot/share/gc/g1/g1ConcurrentMark.cpp

Changeset: 7d63c9fa
Branch: fibers
Author:    Hannes Walln?fer <hannesw at openjdk.org>
Date:      2025-08-01 08:35:10 +0000
URL:       https://git.openjdk.org/loom/commit/7d63c9fa4d7d03c8565d0491e7ff93087b79cc39

8294074: Make other specs more discoverable from the API docs

Reviewed-by: mr

! make/Docs.gmk

Changeset: d80b5c87
Branch: fibers
Author:    Hannes Walln?fer <hannesw at openjdk.org>
Date:      2025-08-01 08:39:29 +0000
URL:       https://git.openjdk.org/loom/commit/d80b5c8728a18c74cf427817b4b84052a5404870

8361316: javadoc tool fails with an exception for an inheritdoc on throws clause of a constructor

Reviewed-by: nbenalla, liach

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/taglets/ThrowsTaglet.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/resources/doclets.properties
! test/langtools/jdk/javadoc/doclet/testInheritDocWithinInappropriateTag/TestInheritDocWithinInappropriateTag.java

Changeset: 7fbeede1
Branch: fibers
Author:    Prasanta Sadhukhan <psadhukhan at openjdk.org>
Date:      2025-08-01 09:15:52 +0000
URL:       https://git.openjdk.org/loom/commit/7fbeede14c558221ae0e5b8d65f50e50c0e3737a

4938801: The popup does not go when the component is removed

Co-authored-by: Alexey Ivanov <aivanov at openjdk.org>
Reviewed-by: dnguyen, abhiscxk

! src/java.desktop/share/classes/javax/swing/JPopupMenu.java
+ test/jdk/javax/swing/JPopupMenu/TestPopupInvoker.java

Changeset: 6b029423
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-01 10:29:18 +0000
URL:       https://git.openjdk.org/loom/commit/6b029423964a12d99b597e394f345d83a523d216

Merge branch 'master' into fibers


Changeset: 18acb7ef
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-01 10:15:37 +0000
URL:       https://git.openjdk.org/loom/commit/18acb7ef3cb0448310cb65983ddaa56ae746c8a6

PerCarrierPollerGroup improvements

! src/java.base/share/classes/sun/nio/ch/Poller.java

Changeset: 2d0562b2
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-01 10:15:51 +0000
URL:       https://git.openjdk.org/loom/commit/2d0562b23955bed1aa97c1760b0d0cd50649b9c9

Unexclude DumpThreads test

! test/jdk/ProblemList.txt

Changeset: 2521d0fd
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-01 10:29:26 +0000
URL:       https://git.openjdk.org/loom/commit/2521d0fd6cbd6d9e261877d25e9ec523861d3dc5

Merge loom into fibers



From duke at openjdk.org  Fri Aug  1 11:17:17 2025
From: duke at openjdk.org (duke)
Date: Fri, 1 Aug 2025 11:17:17 GMT
Subject: git: openjdk/loom: master: 31 new changesets
Message-ID: <8e709679-c900-4cde-810f-ebd1c3bee067@openjdk.org>

Changeset: 3bdac531
Branch: master
Author:    Rajan Halade <rhalade at openjdk.org>
Date:      2025-07-30 17:56:00 +0000
URL:       https://git.openjdk.org/loom/commit/3bdac5317815b84d6f693d972f73d77dd069a891

8361212: Remove AffirmTrust root CAs

Reviewed-by: mullan

! src/java.base/share/classes/sun/security/validator/EntrustTLSPolicy.java
- src/java.base/share/data/cacerts/affirmtrustcommercialca
- src/java.base/share/data/cacerts/affirmtrustnetworkingca
- src/java.base/share/data/cacerts/affirmtrustpremiumca
- src/java.base/share/data/cacerts/affirmtrustpremiumeccca
! test/jdk/security/infra/java/security/cert/CertPathValidator/certification/CAInterop.java
! test/jdk/sun/security/lib/cacerts/VerifyCACerts.java
! test/jdk/sun/security/ssl/X509TrustManagerImpl/distrust/Entrust.java
- test/jdk/sun/security/ssl/X509TrustManagerImpl/distrust/chains/entrust/affirmtrustcommercialca-chain.pem
- test/jdk/sun/security/ssl/X509TrustManagerImpl/distrust/chains/entrust/affirmtrustnetworkingca-chain.pem
- test/jdk/sun/security/ssl/X509TrustManagerImpl/distrust/chains/entrust/affirmtrustpremiumca-chain.pem
- test/jdk/sun/security/ssl/X509TrustManagerImpl/distrust/chains/entrust/affirmtrustpremiumeccca-chain.pem

Changeset: 413ac74e
Branch: master
Author:    Koushik Thirupattur <koushik.thirupattur at oracle.com>
Committer: Sean Mullan <mullan at openjdk.org>
Date:      2025-07-30 19:56:38 +0000
URL:       https://git.openjdk.org/loom/commit/413ac74ecc225ff2cd7a729204a9c7a95dc48458

8357682: sun.security.provider.certpath.Builder#getMatchingPolicies always returns null

Reviewed-by: mullan

! src/java.base/share/classes/sun/security/provider/certpath/Builder.java

Changeset: 559795b0
Branch: master
Author:    SendaoYan <syan at openjdk.org>
Date:      2025-07-31 01:38:25 +0000
URL:       https://git.openjdk.org/loom/commit/559795b0eb8061325127fa9fdf8b80617fe47166

8362501: Update test/hotspot/jtreg/applications/jcstress/README

Reviewed-by: shade, lmesnik

! test/hotspot/jtreg/applications/jcstress/README

Changeset: 05c63e80
Branch: master
Author:    Alexander Zvegintsev <azvegint at openjdk.org>
Date:      2025-07-31 06:04:22 +0000
URL:       https://git.openjdk.org/loom/commit/05c63e80091d554625c5b6fc8c9f6973ef19ec4f

8361524: [XWayland] possible JavaFX interop hang

Reviewed-by: psadhukhan, serb, prr, kizune, kcr

! src/java.desktop/unix/native/libawt_xawt/awt/screencast_portal.c

Changeset: ebb7f5d3
Branch: master
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2025-07-31 06:07:17 +0000
URL:       https://git.openjdk.org/loom/commit/ebb7f5d39be8497fc89e25d0905335102e12c063

8364111: InstanceMirrorKlass iterators should handle CDS and hidden classes consistently

Reviewed-by: stuefe, ayang, coleenp

! src/hotspot/share/oops/instanceMirrorKlass.hpp
! src/hotspot/share/oops/instanceMirrorKlass.inline.hpp

Changeset: b9f7caed
Branch: master
Author:    Joel Sikstr?m <jsikstro at openjdk.org>
Date:      2025-07-31 07:40:22 +0000
URL:       https://git.openjdk.org/loom/commit/b9f7caed775e86e71f7d37789cb196fb1444ef12

8364282: ZGC: Improve ZPageAllocation JFR event sending

Reviewed-by: stefank, aboldtch

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

Changeset: 8ed214f3
Branch: master
Author:    Yasumasa Suenaga <ysuenaga at openjdk.org>
Date:      2025-07-31 12:10:43 +0000
URL:       https://git.openjdk.org/loom/commit/8ed214f3b1864ea0095d05497f782ce4131836d4

8364090: Dump JFR recording on CrashOnOutOfMemoryError

Reviewed-by: egahlin, stuefe

! src/hotspot/share/jfr/jfr.cpp
! src/hotspot/share/jfr/jfr.hpp
! src/hotspot/share/jfr/recorder/repository/jfrEmergencyDump.cpp
! src/hotspot/share/jfr/recorder/repository/jfrEmergencyDump.hpp
! src/hotspot/share/runtime/java.cpp
! src/hotspot/share/utilities/vmError.cpp
+ test/jdk/jdk/jfr/event/oldobject/TestEmergencyDumpAtOOM.java

Changeset: ddb64836
Branch: master
Author:    Manuel H?ssig <mhaessig at openjdk.org>
Date:      2025-07-31 12:12:15 +0000
URL:       https://git.openjdk.org/loom/commit/ddb64836e5bafededb705329137e353f8c74dd5d

8364409: [BACKOUT] Consolidate Identity of self-inverse operations

Reviewed-by: thartmann, bmaillard, hgreule

! src/hotspot/share/opto/subnode.cpp
! src/hotspot/share/opto/subnode.hpp
- test/hotspot/jtreg/compiler/c2/irTests/InvolutionIdentityTests.java
! test/hotspot/jtreg/compiler/lib/ir_framework/IRNode.java

Changeset: 3f21c8bd
Branch: master
Author:    Axel Boldt-Christmas <aboldtch at openjdk.org>
Date:      2025-07-31 13:08:29 +0000
URL:       https://git.openjdk.org/loom/commit/3f21c8bd1f0cd7f27df940505b249ba7798940cf

8361897: gc/z/TestUncommit.java fails with Uncommitted too slow

Reviewed-by: stefank, jsikstro

! test/hotspot/jtreg/gc/z/TestUncommit.java

Changeset: 458f033d
Branch: master
Author:    Lei Zhu <korov9.c at gmail.com>
Committer: Kevin Walls <kevinw at openjdk.org>
Date:      2025-07-31 13:11:59 +0000
URL:       https://git.openjdk.org/loom/commit/458f033d4dd3c646028b2f9bab88f9a308cad4af

8362533: Tests sun/management/jmxremote/bootstrap/* duplicate VM flags

Reviewed-by: lmesnik, sspitsyn, kevinw

! test/jdk/sun/management/jmxremote/bootstrap/AbstractFilePermissionTest.java
! test/jdk/sun/management/jmxremote/bootstrap/LocalManagementTest.java
! test/jdk/sun/management/jmxremote/bootstrap/RmiRegistrySslTest.java

Changeset: e544cd99
Branch: master
Author:    Artur Barashev <abarashev at openjdk.org>
Date:      2025-07-31 13:57:19 +0000
URL:       https://git.openjdk.org/loom/commit/e544cd992099ef905266610c2c1456705cdc4587

8359956: Support algorithm constraints and certificate checks in SunX509 key manager

Reviewed-by: mullan

! src/java.base/share/classes/sun/security/ssl/SunX509KeyManagerImpl.java
+ src/java.base/share/classes/sun/security/ssl/X509KeyManagerCertChecking.java
! src/java.base/share/classes/sun/security/ssl/X509KeyManagerImpl.java
! test/jdk/javax/rmi/ssl/SSLSocketParametersTest.java
- test/jdk/javax/rmi/ssl/keystore
- test/jdk/javax/rmi/ssl/truststore
! test/jdk/sun/net/www/protocol/https/HttpsClient/ServerIdentityTest.java
- test/jdk/sun/net/www/protocol/https/HttpsClient/dnsstore
- test/jdk/sun/net/www/protocol/https/HttpsClient/ipstore
! test/jdk/sun/security/mscapi/ShortRSAKeyWithinTLS.java
! test/jdk/sun/security/ssl/SignatureScheme/MD5NotAllowedInTLS13CertificateSignature.java
+ test/jdk/sun/security/ssl/X509KeyManager/AlgorithmConstraintsCheck.java
+ test/jdk/sun/security/ssl/X509KeyManager/CertChecking.java
+ test/jdk/sun/security/ssl/X509KeyManager/PeerConstraintsCheck.java
! test/jdk/sun/security/ssl/X509TrustManagerImpl/PKIXExtendedTM.java
! test/jdk/sun/security/tools/keytool/PrintSSL.java
! test/lib/jdk/test/lib/security/CertificateBuilder.java

Changeset: 5f357fa2
Branch: master
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-07-31 14:08:40 +0000
URL:       https://git.openjdk.org/loom/commit/5f357fa27d89a3ead3783a3197ba4c576802cb7a

8364197: G1: Sort G1 mutex locks by name and group them together

Reviewed-by: coleenp, ayang

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

Changeset: d4705947
Branch: master
Author:    DarraghConway <darragh.conway at oracle.com>
Committer: Roger Riggs <rriggs at openjdk.org>
Date:      2025-07-31 14:41:13 +0000
URL:       https://git.openjdk.org/loom/commit/d4705947d89509b235cf48328014331c9c6cee80

8360408: [TEST] Use @requires tag instead of exiting based on "os.name" property value for sun/net/www/protocol/file/FileURLTest.java

Reviewed-by: vyazici, rriggs

! test/jdk/sun/net/www/protocol/file/FileURLTest.java

Changeset: 53d152e7
Branch: master
Author:    Francesco Andreuzzi <andreuzzi.francesco at gmail.com>
Committer: Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-07-31 14:43:10 +0000
URL:       https://git.openjdk.org/loom/commit/53d152e7dbccae9682e461e51ca75d63f88893cf

8364087: Amend comment in globalDefinitions.hpp on "classfile_constants.h" include

Reviewed-by: stefank, ayang

! src/hotspot/share/utilities/globalDefinitions.hpp

Changeset: b2b56cfc
Branch: master
Author:    Weijun Wang <weijun at openjdk.org>
Date:      2025-07-31 14:45:31 +0000
URL:       https://git.openjdk.org/loom/commit/b2b56cfc00ab258c41d468040015bb2dcc6ec289

8359395: XML signature generation does not support user provided SecureRandom

Reviewed-by: mullan

! src/java.xml.crypto/share/classes/javax/xml/crypto/dsig/dom/DOMSignContext.java
! src/java.xml.crypto/share/classes/org/jcp/xml/dsig/internal/dom/DOMRSAPSSSignatureMethod.java
! src/java.xml.crypto/share/classes/org/jcp/xml/dsig/internal/dom/DOMSignatureMethod.java
+ test/jdk/javax/xml/crypto/dsig/Properties.java

Changeset: 1b9efaa1
Branch: master
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2025-07-31 15:17:51 +0000
URL:       https://git.openjdk.org/loom/commit/1b9efaa11e660317240bdeda7527b23c7d52da0f

8364183: Shenandoah: Improve commit/uncommit handling

Reviewed-by: wkemper, xpeng

! src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp
! src/hotspot/share/gc/shenandoah/shenandoahHeap.hpp
! src/hotspot/share/gc/shenandoah/shenandoahHeapRegion.cpp

Changeset: c4fbfa21
Branch: master
Author:    Anton Artemov <anton.artemov at oracle.com>
Committer: Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-07-31 15:39:38 +0000
URL:       https://git.openjdk.org/loom/commit/c4fbfa21030c9a0e8a3e0eed1b0a0988eba08ddb

8363949: Incorrect jtreg header in MonitorWithDeadObjectTest.java

Reviewed-by: stefank, coleenp, ayang

! test/hotspot/jtreg/runtime/Monitor/MonitorWithDeadObjectTest.java

Changeset: d1944239
Branch: master
Author:    Johannes Graham <j3graham at gmail.com>
Committer: Raffaello Giulietti <rgiulietti at openjdk.org>
Date:      2025-07-31 17:50:18 +0000
URL:       https://git.openjdk.org/loom/commit/d19442399c004c78bff8a5ccf7c6975c7e583a07

8358880: Performance of parsing with DecimalFormat can be improved

Reviewed-by: jlu, liach, rgiulietti

! src/java.base/share/classes/java/text/DigitList.java
! src/java.base/share/classes/jdk/internal/math/FloatingDecimal.java
! test/jdk/java/text/Format/DecimalFormat/CloneTest.java
+ test/micro/org/openjdk/bench/java/text/DecimalFormatParseBench.java

Changeset: fe09e93b
Branch: master
Author:    Chen Liang <liach at openjdk.org>
Date:      2025-07-31 18:26:28 +0000
URL:       https://git.openjdk.org/loom/commit/fe09e93b8fc3081c944f3824fdaa55cc17e377a8

8364317: Explicitly document some assumptions of StringUTF16

Reviewed-by: rgiulietti, rriggs, vyazici

! src/java.base/share/classes/java/lang/StringUTF16.java

Changeset: 443afdc7
Branch: master
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-07-31 18:52:44 +0000
URL:       https://git.openjdk.org/loom/commit/443afdc77ffb9184a985ec586c888eabe9ee8e6f

8364176: Serial: Group all class unloading logic at the end of marking phase

Reviewed-by: tschatzl, sangheki

! src/hotspot/share/gc/serial/serialFullGC.cpp
! src/hotspot/share/gc/serial/serialHeap.cpp

Changeset: e0e82066
Branch: master
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-07-31 18:53:07 +0000
URL:       https://git.openjdk.org/loom/commit/e0e82066fec3e1efa55ecc113bb8f4efe2e0e2a0

8364166: Parallel: Remove the use of soft_ref_policy in Full GC

Reviewed-by: tschatzl, sangheki

! src/hotspot/share/gc/parallel/psParallelCompact.cpp
! src/hotspot/share/gc/parallel/psParallelCompact.hpp

Changeset: 724e8c07
Branch: master
Author:    Artur Barashev <abarashev at openjdk.org>
Date:      2025-07-31 21:24:09 +0000
URL:       https://git.openjdk.org/loom/commit/724e8c076e1aed05de893ef9366af0e62cc2ac2b

8364484: misc tests fail with Received fatal alert: handshake_failure

Reviewed-by: ascarpino

! test/jdk/javax/management/security/SecurityTest.java

Changeset: 913d318c
Branch: master
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-01 05:59:33 +0000
URL:       https://git.openjdk.org/loom/commit/913d318c97aa46c16aca89e565660e5fb67e8efd

8364504: [BACKOUT] JDK-8364176 Serial: Group all class unloading logic at the end of marking phase

Reviewed-by: dholmes

! src/hotspot/share/gc/serial/serialFullGC.cpp
! src/hotspot/share/gc/serial/serialHeap.cpp

Changeset: c9b8bd6f
Branch: master
Author:    Francesco Andreuzzi <andreuzzi.francesco at gmail.com>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-01 06:27:02 +0000
URL:       https://git.openjdk.org/loom/commit/c9b8bd6ff478fda23a10a6d3e04aec4478cb9ff6

8364359: Sort share/cds includes

Reviewed-by: shade, iklam

! src/hotspot/share/cds/aotClassLocation.cpp
! src/hotspot/share/cds/aotClassLocation.hpp
! src/hotspot/share/cds/aotConstantPoolResolver.hpp
! src/hotspot/share/cds/aotLinkedClassBulkLoader.hpp
! src/hotspot/share/cds/archiveUtils.hpp
! src/hotspot/share/cds/cdsEnumKlass.cpp
! src/hotspot/share/cds/cppVtables.cpp
! src/hotspot/share/cds/dumpTimeClassInfo.inline.hpp
! src/hotspot/share/cds/dynamicArchive.cpp
! src/hotspot/share/cds/filemap.cpp
! src/hotspot/share/cds/lambdaFormInvokers.inline.hpp
! src/hotspot/share/cds/metaspaceShared.cpp
! test/hotspot/jtreg/sources/TestIncludesAreSorted.java

Changeset: 577ac061
Branch: master
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-01 06:28:29 +0000
URL:       https://git.openjdk.org/loom/commit/577ac0610a0c62d6a3f5501bb0d1bd45f8c47f22

8358340: Support CDS heap archive with Generational Shenandoah

Reviewed-by: xpeng, wkemper

! src/hotspot/share/gc/shenandoah/shenandoahHeap.hpp

Changeset: e82d7f58
Branch: master
Author:    Joel Sikstr?m <jsikstro at openjdk.org>
Date:      2025-08-01 07:11:11 +0000
URL:       https://git.openjdk.org/loom/commit/e82d7f58101aa5b7147a881bfc1c96b826446758

8364351: ZGC: Replace usages of ZPageAgeRange() with ZPageAgeRangeAll

Reviewed-by: stefank, aboldtch

! src/hotspot/share/gc/z/zGeneration.cpp
! src/hotspot/share/gc/z/zObjectAllocator.cpp
! src/hotspot/share/gc/z/zPageAge.hpp
! src/hotspot/share/gc/z/zRelocationSetSelector.cpp
! src/hotspot/share/gc/z/zRelocationSetSelector.inline.hpp
! src/hotspot/share/gc/z/zStat.cpp
! test/hotspot/gtest/gc/z/test_zPageAge.cpp

Changeset: ae11d8f4
Branch: master
Author:    Joel Sikstr?m <jsikstro at openjdk.org>
Date:      2025-08-01 07:42:45 +0000
URL:       https://git.openjdk.org/loom/commit/ae11d8f44689502d35cb511e9ce288ab7cc0acae

8364248: Separate commit and reservation limit detection

Reviewed-by: stuefe, ayang

! src/hotspot/os/posix/os_posix.cpp
! src/hotspot/os/windows/os_windows.cpp
! src/hotspot/share/gc/z/zAddressSpaceLimit.cpp
! src/hotspot/share/runtime/arguments.cpp
! src/hotspot/share/runtime/os.hpp

Changeset: beda14e3
Branch: master
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-08-01 08:22:04 +0000
URL:       https://git.openjdk.org/loom/commit/beda14e3cba368b0bf9f8e4567df163cf1e648a4

8364423: G1: Refactor G1UpdateRegionLivenessAndSelectForRebuildTask

Reviewed-by: sangheki, ayang

! src/hotspot/share/gc/g1/g1ConcurrentMark.cpp

Changeset: 7d63c9fa
Branch: master
Author:    Hannes Walln?fer <hannesw at openjdk.org>
Date:      2025-08-01 08:35:10 +0000
URL:       https://git.openjdk.org/loom/commit/7d63c9fa4d7d03c8565d0491e7ff93087b79cc39

8294074: Make other specs more discoverable from the API docs

Reviewed-by: mr

! make/Docs.gmk

Changeset: d80b5c87
Branch: master
Author:    Hannes Walln?fer <hannesw at openjdk.org>
Date:      2025-08-01 08:39:29 +0000
URL:       https://git.openjdk.org/loom/commit/d80b5c8728a18c74cf427817b4b84052a5404870

8361316: javadoc tool fails with an exception for an inheritdoc on throws clause of a constructor

Reviewed-by: nbenalla, liach

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/taglets/ThrowsTaglet.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/resources/doclets.properties
! test/langtools/jdk/javadoc/doclet/testInheritDocWithinInappropriateTag/TestInheritDocWithinInappropriateTag.java

Changeset: 7fbeede1
Branch: master
Author:    Prasanta Sadhukhan <psadhukhan at openjdk.org>
Date:      2025-08-01 09:15:52 +0000
URL:       https://git.openjdk.org/loom/commit/7fbeede14c558221ae0e5b8d65f50e50c0e3737a

4938801: The popup does not go when the component is removed

Co-authored-by: Alexey Ivanov <aivanov at openjdk.org>
Reviewed-by: dnguyen, abhiscxk

! src/java.desktop/share/classes/javax/swing/JPopupMenu.java
+ test/jdk/javax/swing/JPopupMenu/TestPopupInvoker.java


From davidalayachew at gmail.com  Fri Aug  1 11:51:18 2025
From: davidalayachew at gmail.com (David Alayachew)
Date: Fri, 1 Aug 2025 07:51:18 -0400
Subject: Bikeshedding Structured Concurrency
In-Reply-To: <291516440.7085975.1754038036074.JavaMail.zimbra@univ-eiffel.fr>
References: <CAA9v-_P1kTd9RxqieXkfG-DjX60m5Oga--=7LjZ7L3LnUX5O=A@mail.gmail.com>
 <2200f0bd-5b06-4fae-96f0-d80e59a3f154@oracle.com>
 <291516440.7085975.1754038036074.JavaMail.zimbra@univ-eiffel.fr>
Message-ID: <CAA9v-_OTFT23kMoqQ4hM-QZBKpxZLXz1XmATzX1FRJKioYc1hg@mail.gmail.com>

Thanks for the responses everyone. It appears that there are several
examples that return too. Sounds like the reason is convention then.

I guess a better question might be, why were all these API's named with
Exception rather than Throwable in the first place? What benefit is there
in naming it Exception?

On Fri, Aug 1, 2025, 4:47?AM Remi Forax <forax at univ-mlv.fr> wrote:

>
>
> ------------------------------
>
> *From: *"Alan Bateman" <alan.bateman at oracle.com>
> *To: *"David Alayachew" <davidalayachew at gmail.com>, "loom-dev" <
> loom-dev at openjdk.org>
> *Sent: *Friday, August 1, 2025 10:28:04 AM
> *Subject: *Re: Bikeshedding Structured Concurrency
>
> On 01/08/2025 06:05, David Alayachew wrote:
>
> Hello @loom-dev <loom-dev at openjdk.org>,
>
> I have been enjoying the Structured Concurrency JEP's as they have come,
> and I am excited to try the JDK 25 variant with all the new changes with
> Joiner.
>
> I have a bikeshed request.
>
> For Subtask, can we change the method name from exception() to
> throwable()? It more accurately describes what is happening.
>
>
> In j.u.concurrent there is
> CompletableFuture.completeExceptionally(Throwable)/obtrudeException(Throwable),
> SubmissionPublisher.closeExceptionally(Throwable),
> ForkJoinTask.getException and Future.exceptionNow() returning a Throwable,
> and a few more.
>
>
> yes, also Future.exceptionNow().
>
>
>
> The main use of Subtask::exception will be a custom Joiner's onComplete
> implementation where handles the exception or error when the subtask fails.
> There is an argument that fork should be void or just return a Supplier
> (Subtask extends Supplier) but there hasn't been enough feedback from
> real-world usage to help that discussion.
>
> -Alan
>
>
> R?mi
>
>
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From george at jgserv.co.uk  Fri Aug  1 12:16:50 2025
From: george at jgserv.co.uk (George Ball)
Date: Fri, 1 Aug 2025 13:16:50 +0100
Subject: Bikeshedding Structured Concurrency
In-Reply-To: <CAA9v-_OTFT23kMoqQ4hM-QZBKpxZLXz1XmATzX1FRJKioYc1hg@mail.gmail.com>
References: <CAA9v-_P1kTd9RxqieXkfG-DjX60m5Oga--=7LjZ7L3LnUX5O=A@mail.gmail.com>
 <2200f0bd-5b06-4fae-96f0-d80e59a3f154@oracle.com>
 <291516440.7085975.1754038036074.JavaMail.zimbra@univ-eiffel.fr>
 <CAA9v-_OTFT23kMoqQ4hM-QZBKpxZLXz1XmATzX1FRJKioYc1hg@mail.gmail.com>
Message-ID: <E5C38CE3-AC71-4C18-962A-F10F07643D8F@jgserv.co.uk>

My understanding ( and I may be way off here? )   

The ?feature? provided by exceptions et al has been around in various languages for a long time, pre-Java, so the term had a level of familiarity when Java came out. Java?s approach however of having different ?types? of exception encoded in the type system led the class hierarchy with a common base class Throwable. There?s checked and unchecked Exceptions, which extend the Exception class which extends Throwable. But then we also have Error which extends Throwable but is the base of a second hierarchy representing ?bad things? that are not intended to be caught? So we can think of Exceptions as things that are throwable and may be caught within application code.

It remains an open question whether the idea of checked/unchecked exceptions is good or not - and many strong opinions can be found on this topic so I don?t need to say any more :)  

Hope that makes sense :)

George


> On 1 Aug 2025, at 12:51, David Alayachew <davidalayachew at gmail.com> wrote:
> 
> Thanks for the responses everyone. It appears that there are several examples that return too. Sounds like the reason is convention then.
> 
> I guess a better question might be, why were all these API's named with Exception rather than Throwable in the first place? What benefit is there in naming it Exception?
> 
> On Fri, Aug 1, 2025, 4:47?AM Remi Forax <forax at univ-mlv.fr <mailto:forax at univ-mlv.fr>> wrote:
>> 
>> 
>> From: "Alan Bateman" <alan.bateman at oracle.com <mailto:alan.bateman at oracle.com>>
>> To: "David Alayachew" <davidalayachew at gmail.com <mailto:davidalayachew at gmail.com>>, "loom-dev" <loom-dev at openjdk.org <mailto:loom-dev at openjdk.org>>
>> Sent: Friday, August 1, 2025 10:28:04 AM
>> Subject: Re: Bikeshedding Structured Concurrency
>> On 01/08/2025 06:05, David Alayachew wrote:
>> Hello @loom-dev <mailto:loom-dev at openjdk.org>,
>> 
>> I have been enjoying the Structured Concurrency JEP's as they have come, and I am excited to try the JDK 25 variant with all the new changes with Joiner.
>> 
>> I have a bikeshed request.
>> 
>> For Subtask, can we change the method name from exception() to throwable()? It more accurately describes what is happening.
>> 
>> 
>> In j.u.concurrent there is CompletableFuture.completeExceptionally(Throwable)/obtrudeException(Throwable), SubmissionPublisher.closeExceptionally(Throwable), ForkJoinTask.getException and Future.exceptionNow() returning a Throwable, and a few more.
>> 
>> yes, also Future.exceptionNow().
>> 
>> 
>> 
>> The main use of Subtask::exception will be a custom Joiner's onComplete implementation where handles the exception or error when the subtask fails. There is an argument that fork should be void or just return a Supplier (Subtask extends Supplier) but there hasn't been enough feedback from real-world usage to help that discussion.
>> 
>> -Alan
>> 
>> R?mi
>> 

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From duke at openjdk.org  Sat Aug  2 11:36:30 2025
From: duke at openjdk.org (duke)
Date: Sat, 2 Aug 2025 11:36:30 GMT
Subject: git: openjdk/loom: fibers: 13 new changesets
Message-ID: <f538a6a5-efb2-41bf-8c29-611c69eca287@openjdk.org>

Changeset: 812bd8e9
Branch: fibers
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2025-08-01 10:24:11 +0000
URL:       https://git.openjdk.org/loom/commit/812bd8e94d22f9751651e28a2ef8affdf6a33220

8364199: Enhance list of environment variables printed in hserr/hsinfo file

Reviewed-by: lucy, clanger

! src/hotspot/share/utilities/vmError.cpp

Changeset: 6c580472
Branch: fibers
Author:    Oli Gillespie <ogillespie at openjdk.org>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-01 10:27:08 +0000
URL:       https://git.openjdk.org/loom/commit/6c5804722b5b2064e0d6ade2180c3126d8f2dabc

8364296: Set IntelJccErratumMitigation flag ergonomically

Reviewed-by: shade, jbhateja

! src/hotspot/cpu/x86/vm_version_x86.cpp

Changeset: 8ac4a88f
Branch: fibers
Author:    Christian Stein <cstein at openjdk.org>
Date:      2025-08-01 11:01:56 +0000
URL:       https://git.openjdk.org/loom/commit/8ac4a88f3c5ad57824dd192cb3f0af5e71cbceeb

8362237: IllegalArgumentException in the launcher when exception without stack trace is thrown

Reviewed-by: kcr, vromero

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

Changeset: 2ba8a06f
Branch: fibers
Author:    Bhavana Kilambi <bkilambi at openjdk.org>
Committer: Jatin Bhateja <jbhateja at openjdk.org>
Date:      2025-08-01 13:11:21 +0000
URL:       https://git.openjdk.org/loom/commit/2ba8a06f0c0a598a6ca7f74e75bab4208e6fa689

8348868: AArch64: Add backend support for SelectFromTwoVector

Co-authored-by: Jatin Bhateja <jbhateja at openjdk.org>
Reviewed-by: haosun, aph, sviswanathan, xgong

! src/hotspot/cpu/aarch64/aarch64.ad
! src/hotspot/cpu/aarch64/aarch64_vector.ad
! src/hotspot/cpu/aarch64/aarch64_vector_ad.m4
! src/hotspot/cpu/aarch64/assembler_aarch64.hpp
! src/hotspot/cpu/aarch64/c2_MacroAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/c2_MacroAssembler_aarch64.hpp
! src/hotspot/cpu/x86/x86.ad
! src/hotspot/share/opto/vectorIntrinsics.cpp
! test/hotspot/gtest/aarch64/aarch64-asmtest.py
! test/hotspot/gtest/aarch64/asmtest.out.h
! test/hotspot/jtreg/compiler/lib/ir_framework/IRNode.java
! test/hotspot/jtreg/compiler/lib/ir_framework/test/IREncodingPrinter.java
+ test/hotspot/jtreg/compiler/vectorapi/TestSelectFromTwoVectorOp.java

Changeset: ee3665bc
Branch: fibers
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2025-08-01 15:21:45 +0000
URL:       https://git.openjdk.org/loom/commit/ee3665bca026fe53409df8391d49477c64ae23a2

8364187: Make getClassAccessFlagsRaw non-native

Reviewed-by: thartmann, rriggs, liach

! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/javaClasses.hpp
! src/hotspot/share/classfile/vmIntrinsics.hpp
! src/hotspot/share/opto/c2compiler.cpp
! src/hotspot/share/opto/library_call.cpp
! src/hotspot/share/opto/memnode.cpp
! src/hotspot/share/prims/jvm.cpp
! src/java.base/share/classes/java/lang/Class.java
! src/java.base/share/classes/java/lang/System.java
! src/java.base/share/classes/jdk/internal/access/JavaLangAccess.java
! src/java.base/share/classes/jdk/internal/reflect/Reflection.java
! src/java.base/share/native/libjava/Class.c
! src/java.base/share/native/libjava/Reflection.c
! test/hotspot/jtreg/runtime/ClassFile/ClassAccessFlagsRawTest.java
! test/jdk/java/lang/reflect/AccessibleObject/ModuleSetAccessibleTest.java
! test/jdk/java/lang/reflect/AccessibleObject/TrySetAccessibleTest.java

Changeset: 6d0bbc8a
Branch: fibers
Author:    Mikhail Yankelevich <myankelevich at openjdk.org>
Committer: Sean Coffey <coffeys at openjdk.org>
Date:      2025-08-01 18:42:41 +0000
URL:       https://git.openjdk.org/loom/commit/6d0bbc8a18fa555b5e8d132bef400097ef6ee5cb

8357470: src/java.base/share/classes/sun/security/util/Debug.java implement the test for args.toLowerCase

Reviewed-by: coffeys

! test/jdk/sun/security/util/Debug/DebugOptions.java

Changeset: 8e921aee
Branch: fibers
Author:    Justin Lu <jlu at openjdk.org>
Date:      2025-08-01 18:43:02 +0000
URL:       https://git.openjdk.org/loom/commit/8e921aee5abb20c240b45cb75b06fb1f316d8a1f

8364370: java.text.DecimalFormat specification indentation correction

Reviewed-by: liach, naoto

! src/java.base/share/classes/java/text/DecimalFormat.java

Changeset: 7ea08d39
Branch: fibers
Author:    Volkan Yazici <vyazici at openjdk.org>
Date:      2025-08-01 20:36:17 +0000
URL:       https://git.openjdk.org/loom/commit/7ea08d3928032aad05ce347272083a2be7d83546

8362244: Devkit's Oracle Linux base OS keyword is incorrectly documented

Reviewed-by: erikj

! doc/building.html
! doc/building.md

Changeset: e801e513
Branch: fibers
Author:    Serguei Spitsyn <sspitsyn at openjdk.org>
Date:      2025-08-02 04:21:42 +0000
URL:       https://git.openjdk.org/loom/commit/e801e51311b3fb89bb08620dd5604c7ba9aed9df

8306324: StopThread results in thread being marked as interrupted, leading to unexpected InterruptedException

Reviewed-by: pchilanomate, alanb

! src/hotspot/share/prims/jvm.cpp
! src/hotspot/share/runtime/javaThread.cpp
! test/hotspot/jtreg/serviceability/jvmti/vthread/StopThreadTest/StopThreadTest.java

Changeset: 54c9bc0f
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-02 08:00:31 +0000
URL:       https://git.openjdk.org/loom/commit/54c9bc0f974c59b19e8819e1b7e4d72d1de48afe

Merge branch 'master' into fibers

! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/javaClasses.hpp
! src/hotspot/share/runtime/javaThread.cpp
! src/java.base/share/classes/java/lang/System.java
! src/java.base/share/classes/jdk/internal/access/JavaLangAccess.java
! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/javaClasses.hpp
! src/hotspot/share/runtime/javaThread.cpp
! src/java.base/share/classes/java/lang/System.java
! src/java.base/share/classes/jdk/internal/access/JavaLangAccess.java

Changeset: bc3e5a35
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-01 13:29:37 +0000
URL:       https://git.openjdk.org/loom/commit/bc3e5a359e6f4524d1dbd15bf74235440492a69d

Improve comment and shutdown

! src/java.base/share/classes/sun/nio/ch/Poller.java

Changeset: d8445efa
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-02 08:09:05 +0000
URL:       https://git.openjdk.org/loom/commit/d8445efae95d75db472eb4393f0e88100a78952e

ThreadSnapshotFactory::get_thread_snapshot improvements

! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/services/threadService.cpp
! test/jdk/com/sun/management/HotSpotDiagnosticMXBean/DumpThreadsWithEliminatedLock.java

Changeset: fcffc2b9
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-02 08:09:18 +0000
URL:       https://git.openjdk.org/loom/commit/fcffc2b93648b564680f3c0608c3301d88deebf7

Merge loom into fibers

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


From duke at openjdk.org  Sat Aug  2 11:37:00 2025
From: duke at openjdk.org (duke)
Date: Sat, 2 Aug 2025 11:37:00 GMT
Subject: git: openjdk/loom: master: 9 new changesets
Message-ID: <55d9fed0-1c5b-466e-a6f1-8a05f31e7505@openjdk.org>

Changeset: 812bd8e9
Branch: master
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2025-08-01 10:24:11 +0000
URL:       https://git.openjdk.org/loom/commit/812bd8e94d22f9751651e28a2ef8affdf6a33220

8364199: Enhance list of environment variables printed in hserr/hsinfo file

Reviewed-by: lucy, clanger

! src/hotspot/share/utilities/vmError.cpp

Changeset: 6c580472
Branch: master
Author:    Oli Gillespie <ogillespie at openjdk.org>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-01 10:27:08 +0000
URL:       https://git.openjdk.org/loom/commit/6c5804722b5b2064e0d6ade2180c3126d8f2dabc

8364296: Set IntelJccErratumMitigation flag ergonomically

Reviewed-by: shade, jbhateja

! src/hotspot/cpu/x86/vm_version_x86.cpp

Changeset: 8ac4a88f
Branch: master
Author:    Christian Stein <cstein at openjdk.org>
Date:      2025-08-01 11:01:56 +0000
URL:       https://git.openjdk.org/loom/commit/8ac4a88f3c5ad57824dd192cb3f0af5e71cbceeb

8362237: IllegalArgumentException in the launcher when exception without stack trace is thrown

Reviewed-by: kcr, vromero

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

Changeset: 2ba8a06f
Branch: master
Author:    Bhavana Kilambi <bkilambi at openjdk.org>
Committer: Jatin Bhateja <jbhateja at openjdk.org>
Date:      2025-08-01 13:11:21 +0000
URL:       https://git.openjdk.org/loom/commit/2ba8a06f0c0a598a6ca7f74e75bab4208e6fa689

8348868: AArch64: Add backend support for SelectFromTwoVector

Co-authored-by: Jatin Bhateja <jbhateja at openjdk.org>
Reviewed-by: haosun, aph, sviswanathan, xgong

! src/hotspot/cpu/aarch64/aarch64.ad
! src/hotspot/cpu/aarch64/aarch64_vector.ad
! src/hotspot/cpu/aarch64/aarch64_vector_ad.m4
! src/hotspot/cpu/aarch64/assembler_aarch64.hpp
! src/hotspot/cpu/aarch64/c2_MacroAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/c2_MacroAssembler_aarch64.hpp
! src/hotspot/cpu/x86/x86.ad
! src/hotspot/share/opto/vectorIntrinsics.cpp
! test/hotspot/gtest/aarch64/aarch64-asmtest.py
! test/hotspot/gtest/aarch64/asmtest.out.h
! test/hotspot/jtreg/compiler/lib/ir_framework/IRNode.java
! test/hotspot/jtreg/compiler/lib/ir_framework/test/IREncodingPrinter.java
+ test/hotspot/jtreg/compiler/vectorapi/TestSelectFromTwoVectorOp.java

Changeset: ee3665bc
Branch: master
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2025-08-01 15:21:45 +0000
URL:       https://git.openjdk.org/loom/commit/ee3665bca026fe53409df8391d49477c64ae23a2

8364187: Make getClassAccessFlagsRaw non-native

Reviewed-by: thartmann, rriggs, liach

! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/javaClasses.hpp
! src/hotspot/share/classfile/vmIntrinsics.hpp
! src/hotspot/share/opto/c2compiler.cpp
! src/hotspot/share/opto/library_call.cpp
! src/hotspot/share/opto/memnode.cpp
! src/hotspot/share/prims/jvm.cpp
! src/java.base/share/classes/java/lang/Class.java
! src/java.base/share/classes/java/lang/System.java
! src/java.base/share/classes/jdk/internal/access/JavaLangAccess.java
! src/java.base/share/classes/jdk/internal/reflect/Reflection.java
! src/java.base/share/native/libjava/Class.c
! src/java.base/share/native/libjava/Reflection.c
! test/hotspot/jtreg/runtime/ClassFile/ClassAccessFlagsRawTest.java
! test/jdk/java/lang/reflect/AccessibleObject/ModuleSetAccessibleTest.java
! test/jdk/java/lang/reflect/AccessibleObject/TrySetAccessibleTest.java

Changeset: 6d0bbc8a
Branch: master
Author:    Mikhail Yankelevich <myankelevich at openjdk.org>
Committer: Sean Coffey <coffeys at openjdk.org>
Date:      2025-08-01 18:42:41 +0000
URL:       https://git.openjdk.org/loom/commit/6d0bbc8a18fa555b5e8d132bef400097ef6ee5cb

8357470: src/java.base/share/classes/sun/security/util/Debug.java implement the test for args.toLowerCase

Reviewed-by: coffeys

! test/jdk/sun/security/util/Debug/DebugOptions.java

Changeset: 8e921aee
Branch: master
Author:    Justin Lu <jlu at openjdk.org>
Date:      2025-08-01 18:43:02 +0000
URL:       https://git.openjdk.org/loom/commit/8e921aee5abb20c240b45cb75b06fb1f316d8a1f

8364370: java.text.DecimalFormat specification indentation correction

Reviewed-by: liach, naoto

! src/java.base/share/classes/java/text/DecimalFormat.java

Changeset: 7ea08d39
Branch: master
Author:    Volkan Yazici <vyazici at openjdk.org>
Date:      2025-08-01 20:36:17 +0000
URL:       https://git.openjdk.org/loom/commit/7ea08d3928032aad05ce347272083a2be7d83546

8362244: Devkit's Oracle Linux base OS keyword is incorrectly documented

Reviewed-by: erikj

! doc/building.html
! doc/building.md

Changeset: e801e513
Branch: master
Author:    Serguei Spitsyn <sspitsyn at openjdk.org>
Date:      2025-08-02 04:21:42 +0000
URL:       https://git.openjdk.org/loom/commit/e801e51311b3fb89bb08620dd5604c7ba9aed9df

8306324: StopThread results in thread being marked as interrupted, leading to unexpected InterruptedException

Reviewed-by: pchilanomate, alanb

! src/hotspot/share/prims/jvm.cpp
! src/hotspot/share/runtime/javaThread.cpp
! test/hotspot/jtreg/serviceability/jvmti/vthread/StopThreadTest/StopThreadTest.java


From duke at openjdk.org  Sun Aug  3 17:21:53 2025
From: duke at openjdk.org (duke)
Date: Sun, 3 Aug 2025 17:21:53 GMT
Subject: git: openjdk/loom: fibers: 7 new changesets
Message-ID: <d225af0a-046e-4062-a06f-b529cdb4d3a5@openjdk.org>

Changeset: f40381e4
Branch: fibers
Author:    erfang <erfang at nvidia.com>
Committer: Jatin Bhateja <jbhateja at openjdk.org>
Date:      2025-08-02 07:54:42 +0000
URL:       https://git.openjdk.org/loom/commit/f40381e41d1356f92546a21c0d24060f8606b9b3

8356760: VectorAPI: Optimize VectorMask.fromLong for all-true/all-false cases

Reviewed-by: xgong, jbhateja

! src/hotspot/share/opto/vectorIntrinsics.cpp
! src/hotspot/share/opto/vectornode.cpp
! src/hotspot/share/opto/vectornode.hpp
! test/hotspot/jtreg/compiler/lib/ir_framework/IRNode.java
+ test/hotspot/jtreg/compiler/vectorapi/VectorMaskCastIdentityTest.java
+ test/hotspot/jtreg/compiler/vectorapi/VectorMaskFromLongTest.java
+ test/hotspot/jtreg/compiler/vectorapi/VectorMaskToLongTest.java
! test/micro/org/openjdk/bench/jdk/incubator/vector/MaskCastOperationsBenchmark.java
+ test/micro/org/openjdk/bench/jdk/incubator/vector/MaskFromLongToLongBenchmark.java

Changeset: 819de071
Branch: fibers
Author:    Thomas Stuefe <stuefe at openjdk.org>
Date:      2025-08-03 06:43:31 +0000
URL:       https://git.openjdk.org/loom/commit/819de071176623448ceba8065ed6f2aac40ae193

8363998: Implement Compressed Class Pointers for 32-bit

Reviewed-by: rkennke, coleenp

! src/hotspot/cpu/arm/c1_FrameMap_arm.hpp
! src/hotspot/cpu/arm/c1_LIRAssembler_arm.cpp
! src/hotspot/share/cds/metaspaceShared.cpp
! src/hotspot/share/memory/metaspace.cpp
! src/hotspot/share/memory/metaspace/virtualSpaceNode.cpp
! src/hotspot/share/oops/compressedKlass.cpp
! src/hotspot/share/oops/compressedKlass.hpp
! src/hotspot/share/oops/compressedKlass.inline.hpp
! src/hotspot/share/oops/objLayout.cpp
! src/hotspot/share/oops/objLayout.inline.hpp
! src/hotspot/share/runtime/globals.hpp
! src/hotspot/share/utilities/globalDefinitions.hpp
! src/hotspot/share/utilities/vmError.cpp
! test/hotspot/gtest/metaspace/test_metaspaceUtils.cpp
! test/hotspot/gtest/oops/test_compressedKlass.cpp
! test/hotspot/jtreg/gtest/CompressedKlassGtest.java
! test/hotspot/jtreg/runtime/ErrorHandling/TestVMConfigInHsErrFile.java

Changeset: a5e0c9d0
Branch: fibers
Author:    DarraghConway <darragh.conway at oracle.com>
Committer: Mark Sheppard <msheppar at openjdk.org>
Date:      2025-08-03 11:03:15 +0000
URL:       https://git.openjdk.org/loom/commit/a5e0c9d0c52e028321bb38e471ce98e389e67fe1

8363720: Follow up to JDK-8360411 with post review comments

Reviewed-by: bpb, rriggs

! test/jdk/java/io/File/MaxPathLength.java

Changeset: 1a206d2a
Branch: fibers
Author:    Chen Liang <liach at openjdk.org>
Date:      2025-08-03 13:23:43 +0000
URL:       https://git.openjdk.org/loom/commit/1a206d2a6cade07249f6922072ac9d29aa56bc43

8364545: tools/javac/launcher/SourceLauncherTest.java fails frequently

Reviewed-by: cstein, jpai

+ test/langtools/tools/javac/launcher/SourceLauncherStackTraceTest.java
! test/langtools/tools/javac/launcher/SourceLauncherTest.java

Changeset: 9ead4189
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-03 16:43:22 +0000
URL:       https://git.openjdk.org/loom/commit/9ead418943ea2d84ede7898453ade12c8cd911c0

Merge branch 'master' into fibers

! src/hotspot/share/runtime/globals.hpp
! src/hotspot/share/runtime/globals.hpp

Changeset: 2f732ffa
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-03 17:18:18 +0000
URL:       https://git.openjdk.org/loom/commit/2f732ffa0db62ee7302f63f5f1cd9c9ce4c893cc

Allow HotSpotDiagnosticMXBean.dumpThreads be invoked concurrently

! src/hotspot/share/include/jvm.h
! src/hotspot/share/prims/jvm.cpp
! src/hotspot/share/services/threadService.cpp
! src/hotspot/share/services/threadService.hpp
! 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/ThreadSnapshot.java
! src/java.base/share/native/libjava/ThreadSnapshot.c
! test/jdk/com/sun/management/HotSpotDiagnosticMXBean/DumpThreadsWhenParking.java

Changeset: 4f9bd4e4
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-03 17:18:31 +0000
URL:       https://git.openjdk.org/loom/commit/4f9bd4e42af04026edd0ad3b872b119ea2a6efbc

Merge loom into fibers



From duke at openjdk.org  Sun Aug  3 17:22:07 2025
From: duke at openjdk.org (duke)
Date: Sun, 3 Aug 2025 17:22:07 GMT
Subject: git: openjdk/loom: master: 4 new changesets
Message-ID: <bb31a761-9976-4400-825b-b56717bd8d41@openjdk.org>

Changeset: f40381e4
Branch: master
Author:    erfang <erfang at nvidia.com>
Committer: Jatin Bhateja <jbhateja at openjdk.org>
Date:      2025-08-02 07:54:42 +0000
URL:       https://git.openjdk.org/loom/commit/f40381e41d1356f92546a21c0d24060f8606b9b3

8356760: VectorAPI: Optimize VectorMask.fromLong for all-true/all-false cases

Reviewed-by: xgong, jbhateja

! src/hotspot/share/opto/vectorIntrinsics.cpp
! src/hotspot/share/opto/vectornode.cpp
! src/hotspot/share/opto/vectornode.hpp
! test/hotspot/jtreg/compiler/lib/ir_framework/IRNode.java
+ test/hotspot/jtreg/compiler/vectorapi/VectorMaskCastIdentityTest.java
+ test/hotspot/jtreg/compiler/vectorapi/VectorMaskFromLongTest.java
+ test/hotspot/jtreg/compiler/vectorapi/VectorMaskToLongTest.java
! test/micro/org/openjdk/bench/jdk/incubator/vector/MaskCastOperationsBenchmark.java
+ test/micro/org/openjdk/bench/jdk/incubator/vector/MaskFromLongToLongBenchmark.java

Changeset: 819de071
Branch: master
Author:    Thomas Stuefe <stuefe at openjdk.org>
Date:      2025-08-03 06:43:31 +0000
URL:       https://git.openjdk.org/loom/commit/819de071176623448ceba8065ed6f2aac40ae193

8363998: Implement Compressed Class Pointers for 32-bit

Reviewed-by: rkennke, coleenp

! src/hotspot/cpu/arm/c1_FrameMap_arm.hpp
! src/hotspot/cpu/arm/c1_LIRAssembler_arm.cpp
! src/hotspot/share/cds/metaspaceShared.cpp
! src/hotspot/share/memory/metaspace.cpp
! src/hotspot/share/memory/metaspace/virtualSpaceNode.cpp
! src/hotspot/share/oops/compressedKlass.cpp
! src/hotspot/share/oops/compressedKlass.hpp
! src/hotspot/share/oops/compressedKlass.inline.hpp
! src/hotspot/share/oops/objLayout.cpp
! src/hotspot/share/oops/objLayout.inline.hpp
! src/hotspot/share/runtime/globals.hpp
! src/hotspot/share/utilities/globalDefinitions.hpp
! src/hotspot/share/utilities/vmError.cpp
! test/hotspot/gtest/metaspace/test_metaspaceUtils.cpp
! test/hotspot/gtest/oops/test_compressedKlass.cpp
! test/hotspot/jtreg/gtest/CompressedKlassGtest.java
! test/hotspot/jtreg/runtime/ErrorHandling/TestVMConfigInHsErrFile.java

Changeset: a5e0c9d0
Branch: master
Author:    DarraghConway <darragh.conway at oracle.com>
Committer: Mark Sheppard <msheppar at openjdk.org>
Date:      2025-08-03 11:03:15 +0000
URL:       https://git.openjdk.org/loom/commit/a5e0c9d0c52e028321bb38e471ce98e389e67fe1

8363720: Follow up to JDK-8360411 with post review comments

Reviewed-by: bpb, rriggs

! test/jdk/java/io/File/MaxPathLength.java

Changeset: 1a206d2a
Branch: master
Author:    Chen Liang <liach at openjdk.org>
Date:      2025-08-03 13:23:43 +0000
URL:       https://git.openjdk.org/loom/commit/1a206d2a6cade07249f6922072ac9d29aa56bc43

8364545: tools/javac/launcher/SourceLauncherTest.java fails frequently

Reviewed-by: cstein, jpai

+ test/langtools/tools/javac/launcher/SourceLauncherStackTraceTest.java
! test/langtools/tools/javac/launcher/SourceLauncherTest.java


From nikita.bobko at jetbrains.com  Mon Aug  4 10:01:26 2025
From: nikita.bobko at jetbrains.com (Nikita Bobko)
Date: Mon, 4 Aug 2025 12:01:26 +0200
Subject: ScopedValue structured forking/forwarding API
In-Reply-To: <1c6f889a-f472-4d7e-8eb4-18df110807ac@littlepinkcloud.com>
References: <60C1C447-F3A2-4064-B86C-96AD1523020D@jetbrains.com>
 <657ddc2e-1910-43b6-aecf-4d125cfb9c41@littlepinkcloud.com>
 <3389EF90-27C2-4F64-B891-390C1B6C3DEF@jetbrains.com>
 <0fa4845d-b077-4c65-8338-767ff539b917@littlepinkcloud.com>
 <5D7E9BEA-6E6C-4D4A-818D-78E37ADFE507@jetbrains.com>
 <1c6f889a-f472-4d7e-8eb4-18df110807ac@littlepinkcloud.com>
Message-ID: <547342D9-65B2-4E04-B6FD-6894FE8EAD6F@jetbrains.com>

Andrew Haley wrote:
> I think we can make this robust if and only if ScopedValue call() blocks 
> until every forward() (or, equivalently, every bindings.join()) has run 
> to completion. This approach may also give us a way to support parallel 
> streams, etc., without compromising scoped values' temporal and 
> structural invariants. This is an attractive thought.

Yes, it's similar to how StructuredTaskScope.close works.

Andrew Haley wrote:
> Unfortunately, even though failing to wait for children to terminate 
> would be a coding error, it couldn't cause an exception to be thrown 
> because that would leave threads running after the scope that launched 
> them had exited. We could try to interrupt the blocking threads, but if 
> they didn't respond we'd be stuck.

The similar problem exists in StructuredTaskScope API. AFAIK,
StructuredTaskScope.close blocks until children are terminated and only
after that it throws the exception.

Andrew Haley wrote:
> Also, doing this does sort-of imply that there has to be a handshake at 
> every scoped value binding

What do you mean?

Andrew Haley wrote:
> It also means that ScopedValue.Snapshot 
> would need to be mutable in order to ensure that a Snapshot instance 
> couldn't be reused once it was join()ed.

I think it's fine. StructuredTaskScope behaves in the similar manner.
One can't join() it more than once.

> Pedro Lamar?o wrote:
> > Is this not the domain of the transformer or
> > scheduler? shouldn't this be implemented in that layer?
>
> Andrew Haley wrote:
> > In effect we already do exactly this with Java's
> > jdk.internal.vm.Continuation class, but that's not available to client
> > code such as Kotlin. So sure, it's the job of the transformer, but there
> > isn't an API that such a transformer can use.
>
> May I inquire: what is a transformer? I briefly read some of the
> jdk.internal.vm.Continuation code, but apparently not enough.

I am still curious about this.

From nikita.bobko at jetbrains.com  Mon Aug  4 10:05:43 2025
From: nikita.bobko at jetbrains.com (Nikita Bobko)
Date: Mon, 4 Aug 2025 12:05:43 +0200
Subject: ScopedValue structured forking/forwarding API
In-Reply-To: <57a22477-6722-454d-8e11-516274923b91@oracle.com>
References: <60C1C447-F3A2-4064-B86C-96AD1523020D@jetbrains.com>
 <657ddc2e-1910-43b6-aecf-4d125cfb9c41@littlepinkcloud.com>
 <3389EF90-27C2-4F64-B891-390C1B6C3DEF@jetbrains.com>
 <57a22477-6722-454d-8e11-516274923b91@oracle.com>
Message-ID: <06CF3936-906F-4076-9ADB-C9194AD78DC3@jetbrains.com>

Alan Bateman  wrote:
> Is this Android or are you saying that the AWT event dispatching thread 
> (or the JavaFX application thread) can be used as a carrier for these 
> coroutines?

Both. Android and Swing. Maybe we even support JavaFX. But I don't see
how it's important.

From aph-open at littlepinkcloud.com  Mon Aug  4 11:03:01 2025
From: aph-open at littlepinkcloud.com (Andrew Haley)
Date: Mon, 4 Aug 2025 12:03:01 +0100
Subject: ScopedValue structured forking/forwarding API
In-Reply-To: <547342D9-65B2-4E04-B6FD-6894FE8EAD6F@jetbrains.com>
References: <60C1C447-F3A2-4064-B86C-96AD1523020D@jetbrains.com>
 <657ddc2e-1910-43b6-aecf-4d125cfb9c41@littlepinkcloud.com>
 <3389EF90-27C2-4F64-B891-390C1B6C3DEF@jetbrains.com>
 <0fa4845d-b077-4c65-8338-767ff539b917@littlepinkcloud.com>
 <5D7E9BEA-6E6C-4D4A-818D-78E37ADFE507@jetbrains.com>
 <1c6f889a-f472-4d7e-8eb4-18df110807ac@littlepinkcloud.com>
 <547342D9-65B2-4E04-B6FD-6894FE8EAD6F@jetbrains.com>
Message-ID: <5e917069-d3ed-4f9d-81af-6837b4f22e4f@littlepinkcloud.com>

On 04/08/2025 11:01, Nikita Bobko wrote:
> Andrew Haley wrote:
>> I think we can make this robust if and only if ScopedValue call() blocks
>> until every forward() (or, equivalently, every bindings.join()) has run
>> to completion. This approach may also give us a way to support parallel
>> streams, etc., without compromising scoped values' temporal and
>> structural invariants. This is an attractive thought.
> 
> Yes, it's similar to how StructuredTaskScope.close works.

OK. It's a matter of ensuring this property.

> Andrew Haley wrote:
>> Unfortunately, even though failing to wait for children to terminate
>> would be a coding error, it couldn't cause an exception to be thrown
>> because that would leave threads running after the scope that launched
>> them had exited. We could try to interrupt the blocking threads, but if
>> they didn't respond we'd be stuck.
> 
> The similar problem exists in StructuredTaskScope API. AFAIK,
> StructuredTaskScope.close blocks until children are terminated and only
> after that it throws the exception.

Right. We'd be taking this internal JDK logic and making its access public.

> Andrew Haley wrote:
>> Also, doing this does sort-of imply that there has to be a handshake at
>> every scoped value binding
> 
> What do you mean?

There's a tension between making scoped value binding sites as 
lightweight as they can be, and cross-thread inheritance of bindings. 
ScopedValueContainers are used (and in effect managed) by 
ThreadContainers. ScopedValueContainers are not created unless we need 
them. The blocking logic (in popForcefully()) is not executed unless we 
actually use structured concurrency. This inter-thread handshaking is 
expensive, so I don't want popForcefully() to be executed unless 
inheritance is used.

> Andrew Haley wrote:
>> It also means that ScopedValue.Snapshot
>> would need to be mutable in order to ensure that a Snapshot instance
>> couldn't be reused once it was join()ed.
> 
> I think it's fine. StructuredTaskScope behaves in the similar manner.
> One can't join() it more than once.

Mmm, yes.

>> Pedro Lamar?o wrote:
>>> Is this not the domain of the transformer or
>>> scheduler? shouldn't this be implemented in that layer?
>>
>> Andrew Haley wrote:
>>> In effect we already do exactly this with Java's
>>> jdk.internal.vm.Continuation class, but that's not available to client
>>> code such as Kotlin. So sure, it's the job of the transformer, but there
>>> isn't an API that such a transformer can use.
>>
>> May I inquire: what is a transformer? I briefly read some of the
>> jdk.internal.vm.Continuation code, but apparently not enough.
> 
> I am still curious about this.

It's not my usage, but I think it's a reference to the way in which 
suspend functions are transformed into continuation-passing style.

-- 
Andrew Haley  (he/him)
Java Platform Lead Engineer
https://keybase.io/andrewhaley
EAC8 43EB D3EF DB98 CC77 2FAD A5CD 6035 332F A671

From duke at openjdk.org  Wed Aug  6 11:04:52 2025
From: duke at openjdk.org (duke)
Date: Wed, 6 Aug 2025 11:04:52 GMT
Subject: git: openjdk/loom: fibers: 33 new changesets
Message-ID: <488a3fad-f18a-484f-b66e-1c10b08d1e00@openjdk.org>

Changeset: 158e59ab
Branch: fibers
Author:    David Holmes <dholmes at openjdk.org>
Date:      2025-08-03 22:28:12 +0000
URL:       https://git.openjdk.org/loom/commit/158e59ab9184127089f9693ce256001f64b5945c

8364106: Include java.runtime.version in thread dump output

Reviewed-by: alanb, coffeys

! src/hotspot/share/runtime/threads.cpp
! test/hotspot/jtreg/serviceability/dcmd/thread/PrintTest.java

Changeset: 57553ca1
Branch: fibers
Author:    Abhishek Kumar <abhiscxk at openjdk.org>
Date:      2025-08-04 04:17:16 +0000
URL:       https://git.openjdk.org/loom/commit/57553ca1dbc63e329116bc11764816a4c5ccb297

8361298: SwingUtilities/bug4967768.java fails where character P is not underline

Reviewed-by: dnguyen, psadhukhan, achung, azvegint

! test/jdk/javax/swing/SwingUtilities/bug4967768.java

Changeset: 8269fdc7
Branch: fibers
Author:    Andrey Turbanov <aturbanov at openjdk.org>
Date:      2025-08-04 08:15:09 +0000
URL:       https://git.openjdk.org/loom/commit/8269fdc78ef40d8238bf1509531f5cfc25d54820

8362067: Remove unnecessary List.contains key from SpringLayout.Constraints.pushConstraint

Reviewed-by: aivanov

! src/java.desktop/share/classes/javax/swing/SpringLayout.java

Changeset: 3387b319
Branch: fibers
Author:    Francesco Andreuzzi <andreuzzi.francesco at gmail.com>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-04 08:20:22 +0000
URL:       https://git.openjdk.org/loom/commit/3387b3195c8f2a9faa3c93322f6e11ce2aad3e2b

8364519: Sort share/classfile includes

Reviewed-by: shade, ayang

! src/hotspot/share/classfile/classFileParser.cpp
! src/hotspot/share/classfile/classLoader.cpp
! src/hotspot/share/classfile/defaultMethods.cpp
! src/hotspot/share/classfile/defaultMethods.hpp
! src/hotspot/share/classfile/fieldLayoutBuilder.cpp
! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/klassFactory.cpp
! src/hotspot/share/classfile/modules.cpp
! src/hotspot/share/classfile/packageEntry.cpp
! src/hotspot/share/classfile/packageEntry.hpp
! src/hotspot/share/classfile/placeholders.cpp
! src/hotspot/share/classfile/systemDictionary.cpp
! src/hotspot/share/classfile/systemDictionaryShared.cpp
! src/hotspot/share/classfile/systemDictionaryShared.hpp
! src/hotspot/share/classfile/verifier.cpp
! src/hotspot/share/classfile/vmIntrinsics.cpp
! src/hotspot/share/classfile/vmIntrinsics.hpp
! src/hotspot/share/classfile/vmSymbols.cpp
! src/hotspot/share/classfile/vmSymbols.hpp
! test/hotspot/jtreg/sources/TestIncludesAreSorted.java

Changeset: ea7e9438
Branch: fibers
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-04 08:50:35 +0000
URL:       https://git.openjdk.org/loom/commit/ea7e943874288e1cbea10a6bd82d6c7f2a1c9ae0

8364257: JFR: User-defined events and settings with a one-letter name cannot be configured

Reviewed-by: mgronlun

! src/jdk.jfr/share/classes/jdk/jfr/internal/SettingsManager.java
! test/jdk/jdk/jfr/api/flightrecorder/TestSettingsControl.java

Changeset: cf5a2553
Branch: fibers
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-04 09:12:12 +0000
URL:       https://git.openjdk.org/loom/commit/cf5a25538e09e449ff621562df6529abaa9b3685

8364427: JFR: Possible resource leak in Recording::getStream

Reviewed-by: mgronlun

! src/jdk.jfr/share/classes/jdk/jfr/internal/ChunkInputStream.java
+ test/jdk/jdk/jfr/api/recording/misc/TestGetStreamWithFailure.java

Changeset: 3bc44979
Branch: fibers
Author:    Markus Gr?nlund <mgronlun at openjdk.org>
Date:      2025-08-04 09:42:05 +0000
URL:       https://git.openjdk.org/loom/commit/3bc449797eb59f9770d2a06d260b23b6efd5ff0f

8364258: ThreadGroup constant pool serialization is not normalized

Reviewed-by: egahlin

- src/hotspot/share/jfr/recorder/checkpoint/types/jfrThreadGroup.cpp
- src/hotspot/share/jfr/recorder/checkpoint/types/jfrThreadGroup.hpp
+ src/hotspot/share/jfr/recorder/checkpoint/types/jfrThreadGroupManager.cpp
+ src/hotspot/share/jfr/recorder/checkpoint/types/jfrThreadGroupManager.hpp
! src/hotspot/share/jfr/recorder/checkpoint/types/jfrType.cpp
! src/hotspot/share/jfr/recorder/checkpoint/types/jfrType.hpp
! src/hotspot/share/jfr/recorder/checkpoint/types/jfrTypeManager.cpp
! src/hotspot/share/jfr/recorder/jfrRecorder.cpp
! src/hotspot/share/jfr/recorder/jfrRecorder.hpp
! src/hotspot/share/jfr/support/jfrThreadLocal.cpp
! src/hotspot/share/jfr/support/jfrThreadLocal.hpp
! src/hotspot/share/runtime/javaThread.cpp

Changeset: b96b9c3d
Branch: fibers
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-04 10:25:14 +0000
URL:       https://git.openjdk.org/loom/commit/b96b9c3d5b2ffaeaa365b2f0d33674a980c96547

8364461: JFR: Default constructor may not be first in setting control

Reviewed-by: mgronlun

! src/jdk.jfr/share/classes/jdk/jfr/internal/EventControl.java
! test/jdk/jdk/jfr/api/settings/RegExpControl.java

Changeset: da0d9598
Branch: fibers
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-04 10:41:21 +0000
URL:       https://git.openjdk.org/loom/commit/da0d9598d049b17c04da95b61214b093c97fb60e

8364190: JFR: RemoteRecordingStream withers don't work

Reviewed-by: mgronlun

! src/jdk.management.jfr/share/classes/jdk/management/jfr/RemoteRecordingStream.java
! test/jdk/jdk/jfr/jmx/streaming/TestEnableDisable.java
+ test/jdk/jdk/jfr/jmx/streaming/TestWithers.java

Changeset: 68a4396d
Branch: fibers
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-04 10:53:40 +0000
URL:       https://git.openjdk.org/loom/commit/68a4396dbc1f7bc02fea91934fc71366ad879637

8364316: JFR: Incorrect validation of mirror fields

Reviewed-by: shade, mgronlun

! src/jdk.jfr/share/classes/jdk/jfr/internal/Type.java
! src/jdk.jfr/share/classes/jdk/jfr/internal/TypeLibrary.java
! src/jdk.jfr/share/classes/jdk/jfr/internal/util/Utils.java

Changeset: 500462fb
Branch: fibers
Author:    Jasmine Karthikeyan <jkarthikeyan at openjdk.org>
Date:      2025-08-04 12:11:10 +0000
URL:       https://git.openjdk.org/loom/commit/500462fb690c25da3816467e27fc66d25b4eb7dc

8364580: Test compiler/vectorization/TestSubwordTruncation.java fails on platforms without RoundF/RoundD

Reviewed-by: chagedorn, shade

! test/hotspot/jtreg/compiler/vectorization/TestSubwordTruncation.java

Changeset: a9f3d3a2
Branch: fibers
Author:    Ao Qi <aoqi at openjdk.org>
Committer: Erik Joelsson <erikj at openjdk.org>
Date:      2025-08-04 12:37:11 +0000
URL:       https://git.openjdk.org/loom/commit/a9f3d3a290060f98967feaad2fa03ef077a64534

8364177: JDK fails to build due to undefined symbol in libpng on LoongArch64

Reviewed-by: prr, aivanov, erikj

! make/modules/java.desktop/lib/ClientLibraries.gmk

Changeset: fc475553
Branch: fibers
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-04 12:59:26 +0000
URL:       https://git.openjdk.org/loom/commit/fc4755535d61c2fd4d9a2c9a673da148f742f035

8364516: Serial: Move class unloading logic inside SerialFullGC::invoke_at_safepoint

Reviewed-by: tschatzl, sangheki

! src/hotspot/share/gc/serial/serialFullGC.cpp
! src/hotspot/share/gc/serial/serialHeap.cpp

Changeset: 567c0c93
Branch: fibers
Author:    Galder Zamarre?o <galder at openjdk.org>
Committer: Manuel H?ssig <mhaessig at openjdk.org>
Date:      2025-08-04 13:51:14 +0000
URL:       https://git.openjdk.org/loom/commit/567c0c9335c3ff020871115e5a58f3f40fd4b1ad

8354244: Use random data in MinMaxRed_Long data arrays

Reviewed-by: chagedorn, mhaessig

! test/hotspot/jtreg/compiler/loopopts/superword/MinMaxRed_Long.java

Changeset: 6c52b734
Branch: fibers
Author:    Artur Barashev <abarashev at openjdk.org>
Date:      2025-08-04 13:55:58 +0000
URL:       https://git.openjdk.org/loom/commit/6c52b73465b0d0daeafc54c3c6cec3062bf490c5

8209992: Align SSLSocket and SSLEngine Javadocs

Reviewed-by: wetmore

! src/java.base/share/classes/javax/net/ssl/SSLEngine.java
! src/java.base/share/classes/javax/net/ssl/SSLSocket.java

Changeset: b5f450a5
Branch: fibers
Author:    Kevin Driver <kdriver at openjdk.org>
Date:      2025-08-04 15:59:57 +0000
URL:       https://git.openjdk.org/loom/commit/b5f450a599a0f63df0307cced09295fe1309bf6f

8364226: Better ECDSASignature Memory Management

Reviewed-by: ascarpino, hchao

! src/java.base/share/classes/sun/security/ec/ECDSASignature.java

Changeset: 05f8a6fc
Branch: fibers
Author:    Mohamed Issa <missa at openjdk.org>
Committer: Sandhya Viswanathan <sviswanathan at openjdk.org>
Date:      2025-08-04 18:47:57 +0000
URL:       https://git.openjdk.org/loom/commit/05f8a6fca87d472a80e5952ddc90d8fa6589c75c

8360559: Optimize Math.sinh for x86 64 bit platforms

Reviewed-by: sviswanathan, sparasa

! src/hotspot/cpu/arm/templateInterpreterGenerator_arm.cpp
! src/hotspot/cpu/ppc/templateInterpreterGenerator_ppc.cpp
! src/hotspot/cpu/s390/templateInterpreterGenerator_s390.cpp
! src/hotspot/cpu/x86/c1_LIRGenerator_x86.cpp
! src/hotspot/cpu/x86/stubGenerator_x86_64.cpp
! src/hotspot/cpu/x86/stubGenerator_x86_64.hpp
+ src/hotspot/cpu/x86/stubGenerator_x86_64_sinh.cpp
! src/hotspot/cpu/x86/templateInterpreterGenerator_x86_64.cpp
! src/hotspot/share/c1/c1_Compiler.cpp
! src/hotspot/share/c1/c1_GraphBuilder.cpp
! src/hotspot/share/c1/c1_LIRGenerator.cpp
! src/hotspot/share/c1/c1_Runtime1.cpp
! src/hotspot/share/classfile/vmIntrinsics.cpp
! src/hotspot/share/classfile/vmIntrinsics.hpp
! src/hotspot/share/interpreter/abstractInterpreter.cpp
! src/hotspot/share/interpreter/abstractInterpreter.hpp
! src/hotspot/share/interpreter/templateInterpreterGenerator.cpp
! src/hotspot/share/interpreter/zero/zeroInterpreterGenerator.cpp
! src/hotspot/share/jvmci/jvmciCompilerToVM.hpp
! src/hotspot/share/jvmci/jvmciCompilerToVMInit.cpp
! src/hotspot/share/jvmci/vmStructs_jvmci.cpp
! src/hotspot/share/opto/c2compiler.cpp
! src/hotspot/share/opto/library_call.cpp
! src/hotspot/share/runtime/stubDeclarations.hpp
! src/java.base/share/classes/java/lang/Math.java
+ test/micro/org/openjdk/bench/java/lang/SinhPerf.java

Changeset: d1e362e9
Branch: fibers
Author:    Phil Race <prr at openjdk.org>
Date:      2025-08-04 19:27:23 +0000
URL:       https://git.openjdk.org/loom/commit/d1e362e9a8aae7f2c095510633624ed90a1d3b78

8363889: Update sun.print.PrintJob2D to use Disposer

Reviewed-by: azvegint, psadhukhan

! src/java.desktop/share/classes/sun/print/PrintJob2D.java
= src/java.desktop/share/classes/sun/print/PrintJobDelegate.java

Changeset: 0d0d93e8
Branch: fibers
Author:    Phil Race <prr at openjdk.org>
Date:      2025-08-04 19:29:03 +0000
URL:       https://git.openjdk.org/loom/commit/0d0d93e8f6e2e6d0831b011e47da0c6069f6f4f5

8210765: Remove finalize method in CStrike.java

Reviewed-by: psadhukhan, achung, azvegint

! src/java.desktop/macosx/classes/sun/font/CStrike.java
! src/java.desktop/macosx/classes/sun/font/CStrikeDisposer.java

Changeset: da3a5da8
Branch: fibers
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2025-08-04 20:13:03 +0000
URL:       https://git.openjdk.org/loom/commit/da3a5da81bc1d6fe1e47e3a4e65bf390ee1d39a0

8343218: Add option to disable allocating interface and abstract classes in non-class metaspace

Reviewed-by: shade, kvn, yzheng, stuefe, dholmes

! src/hotspot/share/oops/instanceKlass.cpp
! src/hotspot/share/oops/klass.inline.hpp
! src/hotspot/share/runtime/globals.hpp
! src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/hotspot/HotSpotMetaspaceConstantImpl.java
! src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/hotspot/HotSpotVMConfig.java

Changeset: dc4d9b48
Branch: fibers
Author:    Phil Race <prr at openjdk.org>
Date:      2025-08-04 20:25:41 +0000
URL:       https://git.openjdk.org/loom/commit/dc4d9b4849f6557f290338643910f0b05751d748

8362898: Remove finalize() methods from javax.imageio TIFF classes

Reviewed-by: azvegint, jdv

! src/java.desktop/share/classes/com/sun/imageio/plugins/tiff/TIFFBaseJPEGCompressor.java
! src/java.desktop/share/classes/com/sun/imageio/plugins/tiff/TIFFJPEGDecompressor.java
! src/java.desktop/share/classes/com/sun/imageio/plugins/tiff/TIFFOldJPEGDecompressor.java

Changeset: f96b6bcd
Branch: fibers
Author:    Mohamed Issa <missa at openjdk.org>
Committer: Daniel D. Daugherty <dcubed at openjdk.org>
Date:      2025-08-04 21:31:35 +0000
URL:       https://git.openjdk.org/loom/commit/f96b6bcd4ddbb1d0e0a76d9f4e3b43bec20dcb7a

8364666: Tier1 builds broken by JDK-8360559

Reviewed-by: sviswanathan

! src/hotspot/cpu/x86/stubGenerator_x86_64_sinh.cpp

Changeset: 84a4a364
Branch: fibers
Author:    David Holmes <dholmes at openjdk.org>
Date:      2025-08-04 21:48:38 +0000
URL:       https://git.openjdk.org/loom/commit/84a4a3647c86baecc07abfa7d1d4b88e06984821

8364314: java_lang_Thread::get_thread_status fails assert(base != nullptr) failed: Invalid base

Reviewed-by: amenkov, shade, dcubed, pchilanomate, sspitsyn

! src/hotspot/share/services/threadService.cpp
! test/jdk/ProblemList.txt

Changeset: 0f4c3dc9
Branch: fibers
Author:    Alexey Semenyuk <asemenyuk at openjdk.org>
Date:      2025-08-05 01:04:38 +0000
URL:       https://git.openjdk.org/loom/commit/0f4c3dc944212c63acee35b7be93767946397ec0

8362352: Fix references to non-existing resource strings

Reviewed-by: almatvee

! src/jdk.jpackage/share/classes/jdk/jpackage/internal/BuildEnvFromParams.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/RuntimeBuilderBuilder.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/StandardBundlerParam.java

Changeset: 6b360ac9
Branch: fibers
Author:    Alexey Semenyuk <asemenyuk at openjdk.org>
Date:      2025-08-05 01:09:56 +0000
URL:       https://git.openjdk.org/loom/commit/6b360ac99af356613c6dd2cad0c2c84c5737519d

8359756: Bug in RuntimePackageTest.testName test

Reviewed-by: almatvee

! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/PackageTest.java
! test/jdk/tools/jpackage/share/RuntimePackageTest.java

Changeset: c0c7d39b
Branch: fibers
Author:    Alexey Semenyuk <asemenyuk at openjdk.org>
Date:      2025-08-05 01:42:45 +0000
URL:       https://git.openjdk.org/loom/commit/c0c7d39b59e646a51bf3a6729065cceda9b0a0ad

8364587: Update jpackage internal javadoc

Reviewed-by: almatvee

! src/jdk.jpackage/share/classes/jdk/jpackage/internal/PackagingPipeline.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/model/Application.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/model/DefaultLauncherIcon.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/model/Launcher.java

Changeset: febd4b26
Branch: fibers
Author:    Joel Sikstr?m <jsikstro at openjdk.org>
Date:      2025-08-05 07:41:11 +0000
URL:       https://git.openjdk.org/loom/commit/febd4b26b2c87030affd9f93524e0d951cbe74e7

8360515: PROPERFMTARGS should always use size_t template specialization for unit

Reviewed-by: dholmes, stuefe

! src/hotspot/os/bsd/memMapPrinter_macosx.cpp
! src/hotspot/share/gc/parallel/psAdaptiveSizePolicy.cpp
! src/hotspot/share/utilities/globalDefinitions.hpp

Changeset: 67ba8b45
Branch: fibers
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2025-08-05 08:02:54 +0000
URL:       https://git.openjdk.org/loom/commit/67ba8b45dd632c40d5e6872d2a6ce24f86c22152

8364514: [asan] runtime/jni/checked/TestCharArrayReleasing.java heap-buffer-overflow

Reviewed-by: dholmes

! test/hotspot/jtreg/runtime/jni/checked/TestCharArrayReleasing.java

Changeset: d25b9bef
Branch: fibers
Author:    Saranya Natarajan <snatarajan at openjdk.org>
Committer: Damon Fenacci <dfenacci at openjdk.org>
Date:      2025-08-05 08:39:47 +0000
URL:       https://git.openjdk.org/loom/commit/d25b9befe0a462b9785502806ad14e0a5f6b4320

8325482: Test that distinct seeds produce distinct traces for compiler stress flags

Reviewed-by: chagedorn, dfenacci

! test/hotspot/jtreg/compiler/debug/TestStress.java
+ test/hotspot/jtreg/compiler/debug/TestStressDistinctSeed.java

Changeset: 15f42f8d
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-06 10:45:27 +0000
URL:       https://git.openjdk.org/loom/commit/15f42f8d93f1523d6312efdfff54f6c297e91487

Merge branch 'master' into fibers

! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/vmSymbols.hpp
! src/hotspot/share/oops/instanceKlass.cpp
! src/hotspot/share/runtime/globals.hpp
! src/hotspot/share/runtime/javaThread.cpp
! src/hotspot/share/runtime/threads.cpp
! src/hotspot/share/services/threadService.cpp
! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/vmSymbols.hpp
! src/hotspot/share/oops/instanceKlass.cpp
! src/hotspot/share/runtime/globals.hpp
! src/hotspot/share/runtime/javaThread.cpp
! src/hotspot/share/runtime/threads.cpp
! src/hotspot/share/services/threadService.cpp

Changeset: d79115d0
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-05 09:37:17 +0000
URL:       https://git.openjdk.org/loom/commit/d79115d00cbc4c790c939a5d14c4abfb937b41b0

Windows + AIX only support SYSTEM_THREADS mode

! src/java.base/aix/classes/sun/nio/ch/DefaultPollerProvider.java
! src/java.base/linux/classes/sun/nio/ch/DefaultPollerProvider.java
! src/java.base/linux/classes/sun/nio/ch/EPollPoller.java
! src/java.base/share/classes/java/lang/VirtualThread.java
! src/java.base/windows/classes/sun/nio/ch/DefaultPollerProvider.java

Changeset: 9da53e14
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-06 10:38:40 +0000
URL:       https://git.openjdk.org/loom/commit/9da53e14b185afb3a583a1a685a3f4d4fba14978

PerCarrierPollerGroup updates

! src/java.base/aix/classes/sun/nio/ch/DefaultPollerProvider.java
! src/java.base/linux/classes/sun/nio/ch/DefaultPollerProvider.java
! src/java.base/linux/classes/sun/nio/ch/EPollPoller.java
! src/java.base/macosx/classes/sun/nio/ch/DefaultPollerProvider.java
! src/java.base/macosx/classes/sun/nio/ch/KQueuePoller.java
! src/java.base/share/classes/sun/nio/ch/Poller.java
! src/java.base/share/classes/sun/nio/ch/PollerProvider.java
! src/java.base/windows/classes/sun/nio/ch/DefaultPollerProvider.java

Changeset: 5f0e6d18
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-06 10:45:35 +0000
URL:       https://git.openjdk.org/loom/commit/5f0e6d1809e08cb7a145137ce4dc43bfdd4cdd9a

Merge loom into fibers



From duke at openjdk.org  Wed Aug  6 11:06:29 2025
From: duke at openjdk.org (duke)
Date: Wed, 6 Aug 2025 11:06:29 GMT
Subject: git: openjdk/loom: master: 29 new changesets
Message-ID: <a580fa5f-1f1a-40a6-b722-130b85fcce46@openjdk.org>

Changeset: 158e59ab
Branch: master
Author:    David Holmes <dholmes at openjdk.org>
Date:      2025-08-03 22:28:12 +0000
URL:       https://git.openjdk.org/loom/commit/158e59ab9184127089f9693ce256001f64b5945c

8364106: Include java.runtime.version in thread dump output

Reviewed-by: alanb, coffeys

! src/hotspot/share/runtime/threads.cpp
! test/hotspot/jtreg/serviceability/dcmd/thread/PrintTest.java

Changeset: 57553ca1
Branch: master
Author:    Abhishek Kumar <abhiscxk at openjdk.org>
Date:      2025-08-04 04:17:16 +0000
URL:       https://git.openjdk.org/loom/commit/57553ca1dbc63e329116bc11764816a4c5ccb297

8361298: SwingUtilities/bug4967768.java fails where character P is not underline

Reviewed-by: dnguyen, psadhukhan, achung, azvegint

! test/jdk/javax/swing/SwingUtilities/bug4967768.java

Changeset: 8269fdc7
Branch: master
Author:    Andrey Turbanov <aturbanov at openjdk.org>
Date:      2025-08-04 08:15:09 +0000
URL:       https://git.openjdk.org/loom/commit/8269fdc78ef40d8238bf1509531f5cfc25d54820

8362067: Remove unnecessary List.contains key from SpringLayout.Constraints.pushConstraint

Reviewed-by: aivanov

! src/java.desktop/share/classes/javax/swing/SpringLayout.java

Changeset: 3387b319
Branch: master
Author:    Francesco Andreuzzi <andreuzzi.francesco at gmail.com>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-04 08:20:22 +0000
URL:       https://git.openjdk.org/loom/commit/3387b3195c8f2a9faa3c93322f6e11ce2aad3e2b

8364519: Sort share/classfile includes

Reviewed-by: shade, ayang

! src/hotspot/share/classfile/classFileParser.cpp
! src/hotspot/share/classfile/classLoader.cpp
! src/hotspot/share/classfile/defaultMethods.cpp
! src/hotspot/share/classfile/defaultMethods.hpp
! src/hotspot/share/classfile/fieldLayoutBuilder.cpp
! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/klassFactory.cpp
! src/hotspot/share/classfile/modules.cpp
! src/hotspot/share/classfile/packageEntry.cpp
! src/hotspot/share/classfile/packageEntry.hpp
! src/hotspot/share/classfile/placeholders.cpp
! src/hotspot/share/classfile/systemDictionary.cpp
! src/hotspot/share/classfile/systemDictionaryShared.cpp
! src/hotspot/share/classfile/systemDictionaryShared.hpp
! src/hotspot/share/classfile/verifier.cpp
! src/hotspot/share/classfile/vmIntrinsics.cpp
! src/hotspot/share/classfile/vmIntrinsics.hpp
! src/hotspot/share/classfile/vmSymbols.cpp
! src/hotspot/share/classfile/vmSymbols.hpp
! test/hotspot/jtreg/sources/TestIncludesAreSorted.java

Changeset: ea7e9438
Branch: master
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-04 08:50:35 +0000
URL:       https://git.openjdk.org/loom/commit/ea7e943874288e1cbea10a6bd82d6c7f2a1c9ae0

8364257: JFR: User-defined events and settings with a one-letter name cannot be configured

Reviewed-by: mgronlun

! src/jdk.jfr/share/classes/jdk/jfr/internal/SettingsManager.java
! test/jdk/jdk/jfr/api/flightrecorder/TestSettingsControl.java

Changeset: cf5a2553
Branch: master
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-04 09:12:12 +0000
URL:       https://git.openjdk.org/loom/commit/cf5a25538e09e449ff621562df6529abaa9b3685

8364427: JFR: Possible resource leak in Recording::getStream

Reviewed-by: mgronlun

! src/jdk.jfr/share/classes/jdk/jfr/internal/ChunkInputStream.java
+ test/jdk/jdk/jfr/api/recording/misc/TestGetStreamWithFailure.java

Changeset: 3bc44979
Branch: master
Author:    Markus Gr?nlund <mgronlun at openjdk.org>
Date:      2025-08-04 09:42:05 +0000
URL:       https://git.openjdk.org/loom/commit/3bc449797eb59f9770d2a06d260b23b6efd5ff0f

8364258: ThreadGroup constant pool serialization is not normalized

Reviewed-by: egahlin

- src/hotspot/share/jfr/recorder/checkpoint/types/jfrThreadGroup.cpp
- src/hotspot/share/jfr/recorder/checkpoint/types/jfrThreadGroup.hpp
+ src/hotspot/share/jfr/recorder/checkpoint/types/jfrThreadGroupManager.cpp
+ src/hotspot/share/jfr/recorder/checkpoint/types/jfrThreadGroupManager.hpp
! src/hotspot/share/jfr/recorder/checkpoint/types/jfrType.cpp
! src/hotspot/share/jfr/recorder/checkpoint/types/jfrType.hpp
! src/hotspot/share/jfr/recorder/checkpoint/types/jfrTypeManager.cpp
! src/hotspot/share/jfr/recorder/jfrRecorder.cpp
! src/hotspot/share/jfr/recorder/jfrRecorder.hpp
! src/hotspot/share/jfr/support/jfrThreadLocal.cpp
! src/hotspot/share/jfr/support/jfrThreadLocal.hpp
! src/hotspot/share/runtime/javaThread.cpp

Changeset: b96b9c3d
Branch: master
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-04 10:25:14 +0000
URL:       https://git.openjdk.org/loom/commit/b96b9c3d5b2ffaeaa365b2f0d33674a980c96547

8364461: JFR: Default constructor may not be first in setting control

Reviewed-by: mgronlun

! src/jdk.jfr/share/classes/jdk/jfr/internal/EventControl.java
! test/jdk/jdk/jfr/api/settings/RegExpControl.java

Changeset: da0d9598
Branch: master
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-04 10:41:21 +0000
URL:       https://git.openjdk.org/loom/commit/da0d9598d049b17c04da95b61214b093c97fb60e

8364190: JFR: RemoteRecordingStream withers don't work

Reviewed-by: mgronlun

! src/jdk.management.jfr/share/classes/jdk/management/jfr/RemoteRecordingStream.java
! test/jdk/jdk/jfr/jmx/streaming/TestEnableDisable.java
+ test/jdk/jdk/jfr/jmx/streaming/TestWithers.java

Changeset: 68a4396d
Branch: master
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-04 10:53:40 +0000
URL:       https://git.openjdk.org/loom/commit/68a4396dbc1f7bc02fea91934fc71366ad879637

8364316: JFR: Incorrect validation of mirror fields

Reviewed-by: shade, mgronlun

! src/jdk.jfr/share/classes/jdk/jfr/internal/Type.java
! src/jdk.jfr/share/classes/jdk/jfr/internal/TypeLibrary.java
! src/jdk.jfr/share/classes/jdk/jfr/internal/util/Utils.java

Changeset: 500462fb
Branch: master
Author:    Jasmine Karthikeyan <jkarthikeyan at openjdk.org>
Date:      2025-08-04 12:11:10 +0000
URL:       https://git.openjdk.org/loom/commit/500462fb690c25da3816467e27fc66d25b4eb7dc

8364580: Test compiler/vectorization/TestSubwordTruncation.java fails on platforms without RoundF/RoundD

Reviewed-by: chagedorn, shade

! test/hotspot/jtreg/compiler/vectorization/TestSubwordTruncation.java

Changeset: a9f3d3a2
Branch: master
Author:    Ao Qi <aoqi at openjdk.org>
Committer: Erik Joelsson <erikj at openjdk.org>
Date:      2025-08-04 12:37:11 +0000
URL:       https://git.openjdk.org/loom/commit/a9f3d3a290060f98967feaad2fa03ef077a64534

8364177: JDK fails to build due to undefined symbol in libpng on LoongArch64

Reviewed-by: prr, aivanov, erikj

! make/modules/java.desktop/lib/ClientLibraries.gmk

Changeset: fc475553
Branch: master
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-04 12:59:26 +0000
URL:       https://git.openjdk.org/loom/commit/fc4755535d61c2fd4d9a2c9a673da148f742f035

8364516: Serial: Move class unloading logic inside SerialFullGC::invoke_at_safepoint

Reviewed-by: tschatzl, sangheki

! src/hotspot/share/gc/serial/serialFullGC.cpp
! src/hotspot/share/gc/serial/serialHeap.cpp

Changeset: 567c0c93
Branch: master
Author:    Galder Zamarre?o <galder at openjdk.org>
Committer: Manuel H?ssig <mhaessig at openjdk.org>
Date:      2025-08-04 13:51:14 +0000
URL:       https://git.openjdk.org/loom/commit/567c0c9335c3ff020871115e5a58f3f40fd4b1ad

8354244: Use random data in MinMaxRed_Long data arrays

Reviewed-by: chagedorn, mhaessig

! test/hotspot/jtreg/compiler/loopopts/superword/MinMaxRed_Long.java

Changeset: 6c52b734
Branch: master
Author:    Artur Barashev <abarashev at openjdk.org>
Date:      2025-08-04 13:55:58 +0000
URL:       https://git.openjdk.org/loom/commit/6c52b73465b0d0daeafc54c3c6cec3062bf490c5

8209992: Align SSLSocket and SSLEngine Javadocs

Reviewed-by: wetmore

! src/java.base/share/classes/javax/net/ssl/SSLEngine.java
! src/java.base/share/classes/javax/net/ssl/SSLSocket.java

Changeset: b5f450a5
Branch: master
Author:    Kevin Driver <kdriver at openjdk.org>
Date:      2025-08-04 15:59:57 +0000
URL:       https://git.openjdk.org/loom/commit/b5f450a599a0f63df0307cced09295fe1309bf6f

8364226: Better ECDSASignature Memory Management

Reviewed-by: ascarpino, hchao

! src/java.base/share/classes/sun/security/ec/ECDSASignature.java

Changeset: 05f8a6fc
Branch: master
Author:    Mohamed Issa <missa at openjdk.org>
Committer: Sandhya Viswanathan <sviswanathan at openjdk.org>
Date:      2025-08-04 18:47:57 +0000
URL:       https://git.openjdk.org/loom/commit/05f8a6fca87d472a80e5952ddc90d8fa6589c75c

8360559: Optimize Math.sinh for x86 64 bit platforms

Reviewed-by: sviswanathan, sparasa

! src/hotspot/cpu/arm/templateInterpreterGenerator_arm.cpp
! src/hotspot/cpu/ppc/templateInterpreterGenerator_ppc.cpp
! src/hotspot/cpu/s390/templateInterpreterGenerator_s390.cpp
! src/hotspot/cpu/x86/c1_LIRGenerator_x86.cpp
! src/hotspot/cpu/x86/stubGenerator_x86_64.cpp
! src/hotspot/cpu/x86/stubGenerator_x86_64.hpp
+ src/hotspot/cpu/x86/stubGenerator_x86_64_sinh.cpp
! src/hotspot/cpu/x86/templateInterpreterGenerator_x86_64.cpp
! src/hotspot/share/c1/c1_Compiler.cpp
! src/hotspot/share/c1/c1_GraphBuilder.cpp
! src/hotspot/share/c1/c1_LIRGenerator.cpp
! src/hotspot/share/c1/c1_Runtime1.cpp
! src/hotspot/share/classfile/vmIntrinsics.cpp
! src/hotspot/share/classfile/vmIntrinsics.hpp
! src/hotspot/share/interpreter/abstractInterpreter.cpp
! src/hotspot/share/interpreter/abstractInterpreter.hpp
! src/hotspot/share/interpreter/templateInterpreterGenerator.cpp
! src/hotspot/share/interpreter/zero/zeroInterpreterGenerator.cpp
! src/hotspot/share/jvmci/jvmciCompilerToVM.hpp
! src/hotspot/share/jvmci/jvmciCompilerToVMInit.cpp
! src/hotspot/share/jvmci/vmStructs_jvmci.cpp
! src/hotspot/share/opto/c2compiler.cpp
! src/hotspot/share/opto/library_call.cpp
! src/hotspot/share/runtime/stubDeclarations.hpp
! src/java.base/share/classes/java/lang/Math.java
+ test/micro/org/openjdk/bench/java/lang/SinhPerf.java

Changeset: d1e362e9
Branch: master
Author:    Phil Race <prr at openjdk.org>
Date:      2025-08-04 19:27:23 +0000
URL:       https://git.openjdk.org/loom/commit/d1e362e9a8aae7f2c095510633624ed90a1d3b78

8363889: Update sun.print.PrintJob2D to use Disposer

Reviewed-by: azvegint, psadhukhan

! src/java.desktop/share/classes/sun/print/PrintJob2D.java
= src/java.desktop/share/classes/sun/print/PrintJobDelegate.java

Changeset: 0d0d93e8
Branch: master
Author:    Phil Race <prr at openjdk.org>
Date:      2025-08-04 19:29:03 +0000
URL:       https://git.openjdk.org/loom/commit/0d0d93e8f6e2e6d0831b011e47da0c6069f6f4f5

8210765: Remove finalize method in CStrike.java

Reviewed-by: psadhukhan, achung, azvegint

! src/java.desktop/macosx/classes/sun/font/CStrike.java
! src/java.desktop/macosx/classes/sun/font/CStrikeDisposer.java

Changeset: da3a5da8
Branch: master
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2025-08-04 20:13:03 +0000
URL:       https://git.openjdk.org/loom/commit/da3a5da81bc1d6fe1e47e3a4e65bf390ee1d39a0

8343218: Add option to disable allocating interface and abstract classes in non-class metaspace

Reviewed-by: shade, kvn, yzheng, stuefe, dholmes

! src/hotspot/share/oops/instanceKlass.cpp
! src/hotspot/share/oops/klass.inline.hpp
! src/hotspot/share/runtime/globals.hpp
! src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/hotspot/HotSpotMetaspaceConstantImpl.java
! src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/hotspot/HotSpotVMConfig.java

Changeset: dc4d9b48
Branch: master
Author:    Phil Race <prr at openjdk.org>
Date:      2025-08-04 20:25:41 +0000
URL:       https://git.openjdk.org/loom/commit/dc4d9b4849f6557f290338643910f0b05751d748

8362898: Remove finalize() methods from javax.imageio TIFF classes

Reviewed-by: azvegint, jdv

! src/java.desktop/share/classes/com/sun/imageio/plugins/tiff/TIFFBaseJPEGCompressor.java
! src/java.desktop/share/classes/com/sun/imageio/plugins/tiff/TIFFJPEGDecompressor.java
! src/java.desktop/share/classes/com/sun/imageio/plugins/tiff/TIFFOldJPEGDecompressor.java

Changeset: f96b6bcd
Branch: master
Author:    Mohamed Issa <missa at openjdk.org>
Committer: Daniel D. Daugherty <dcubed at openjdk.org>
Date:      2025-08-04 21:31:35 +0000
URL:       https://git.openjdk.org/loom/commit/f96b6bcd4ddbb1d0e0a76d9f4e3b43bec20dcb7a

8364666: Tier1 builds broken by JDK-8360559

Reviewed-by: sviswanathan

! src/hotspot/cpu/x86/stubGenerator_x86_64_sinh.cpp

Changeset: 84a4a364
Branch: master
Author:    David Holmes <dholmes at openjdk.org>
Date:      2025-08-04 21:48:38 +0000
URL:       https://git.openjdk.org/loom/commit/84a4a3647c86baecc07abfa7d1d4b88e06984821

8364314: java_lang_Thread::get_thread_status fails assert(base != nullptr) failed: Invalid base

Reviewed-by: amenkov, shade, dcubed, pchilanomate, sspitsyn

! src/hotspot/share/services/threadService.cpp
! test/jdk/ProblemList.txt

Changeset: 0f4c3dc9
Branch: master
Author:    Alexey Semenyuk <asemenyuk at openjdk.org>
Date:      2025-08-05 01:04:38 +0000
URL:       https://git.openjdk.org/loom/commit/0f4c3dc944212c63acee35b7be93767946397ec0

8362352: Fix references to non-existing resource strings

Reviewed-by: almatvee

! src/jdk.jpackage/share/classes/jdk/jpackage/internal/BuildEnvFromParams.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/RuntimeBuilderBuilder.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/StandardBundlerParam.java

Changeset: 6b360ac9
Branch: master
Author:    Alexey Semenyuk <asemenyuk at openjdk.org>
Date:      2025-08-05 01:09:56 +0000
URL:       https://git.openjdk.org/loom/commit/6b360ac99af356613c6dd2cad0c2c84c5737519d

8359756: Bug in RuntimePackageTest.testName test

Reviewed-by: almatvee

! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/PackageTest.java
! test/jdk/tools/jpackage/share/RuntimePackageTest.java

Changeset: c0c7d39b
Branch: master
Author:    Alexey Semenyuk <asemenyuk at openjdk.org>
Date:      2025-08-05 01:42:45 +0000
URL:       https://git.openjdk.org/loom/commit/c0c7d39b59e646a51bf3a6729065cceda9b0a0ad

8364587: Update jpackage internal javadoc

Reviewed-by: almatvee

! src/jdk.jpackage/share/classes/jdk/jpackage/internal/PackagingPipeline.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/model/Application.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/model/DefaultLauncherIcon.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/model/Launcher.java

Changeset: febd4b26
Branch: master
Author:    Joel Sikstr?m <jsikstro at openjdk.org>
Date:      2025-08-05 07:41:11 +0000
URL:       https://git.openjdk.org/loom/commit/febd4b26b2c87030affd9f93524e0d951cbe74e7

8360515: PROPERFMTARGS should always use size_t template specialization for unit

Reviewed-by: dholmes, stuefe

! src/hotspot/os/bsd/memMapPrinter_macosx.cpp
! src/hotspot/share/gc/parallel/psAdaptiveSizePolicy.cpp
! src/hotspot/share/utilities/globalDefinitions.hpp

Changeset: 67ba8b45
Branch: master
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2025-08-05 08:02:54 +0000
URL:       https://git.openjdk.org/loom/commit/67ba8b45dd632c40d5e6872d2a6ce24f86c22152

8364514: [asan] runtime/jni/checked/TestCharArrayReleasing.java heap-buffer-overflow

Reviewed-by: dholmes

! test/hotspot/jtreg/runtime/jni/checked/TestCharArrayReleasing.java

Changeset: d25b9bef
Branch: master
Author:    Saranya Natarajan <snatarajan at openjdk.org>
Committer: Damon Fenacci <dfenacci at openjdk.org>
Date:      2025-08-05 08:39:47 +0000
URL:       https://git.openjdk.org/loom/commit/d25b9befe0a462b9785502806ad14e0a5f6b4320

8325482: Test that distinct seeds produce distinct traces for compiler stress flags

Reviewed-by: chagedorn, dfenacci

! test/hotspot/jtreg/compiler/debug/TestStress.java
+ test/hotspot/jtreg/compiler/debug/TestStressDistinctSeed.java


From duke at openjdk.org  Thu Aug  7 16:50:07 2025
From: duke at openjdk.org (duke)
Date: Thu, 7 Aug 2025 16:50:07 GMT
Subject: git: openjdk/loom: fibers: 24 new changesets
Message-ID: <83017a73-e30a-4f15-bd4e-c40317ddc78f@openjdk.org>

Changeset: df736eb5
Branch: fibers
Author:    Francesco Andreuzzi <andreuzzi.francesco at gmail.com>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-05 10:23:54 +0000
URL:       https://git.openjdk.org/loom/commit/df736eb5822de2e2465df04972b1afb90334db5e

8364618: Sort share/code includes

Reviewed-by: shade, mhaessig

! src/hotspot/share/code/aotCodeCache.cpp
! src/hotspot/share/code/codeBlob.hpp
! src/hotspot/share/code/debugInfo.cpp
! src/hotspot/share/code/dependencies.cpp
! src/hotspot/share/code/dependencyContext.cpp
! src/hotspot/share/code/nmethod.cpp
! test/hotspot/jtreg/sources/TestIncludesAreSorted.java

Changeset: ba0ae4cb
Branch: fibers
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-05 10:43:30 +0000
URL:       https://git.openjdk.org/loom/commit/ba0ae4cb28aa520d5244077349e35ef1bb475b61

8364254: Serial: Remove soft ref policy update in WhiteBox FullGC

Reviewed-by: tschatzl, sangheki

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

Changeset: 8a571ee7
Branch: fibers
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-05 14:33:30 +0000
URL:       https://git.openjdk.org/loom/commit/8a571ee7f2d9a46ff485fd9f3658c552e2d20817

8364667: JFR: Throttle doesn't work with dynamic events

Reviewed-by: mgronlun

! src/jdk.jfr/share/classes/jdk/jfr/internal/ClassInspector.java
! src/jdk.jfr/share/classes/jdk/jfr/internal/EventInstrumentation.java
! test/jdk/jdk/jfr/api/metadata/annotations/TestThrottle.java

Changeset: d906e450
Branch: fibers
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-08-05 16:13:53 +0000
URL:       https://git.openjdk.org/loom/commit/d906e45026f54fe7102e531d3753adc32ff0025c

8364531: G1: Factor out liveness tracing code

Reviewed-by: ayang, sangheki

! src/hotspot/share/gc/g1/g1ConcurrentMark.cpp
! src/hotspot/share/gc/g1/g1ConcurrentMark.hpp

Changeset: 68a35511
Branch: fibers
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-05 18:34:07 +0000
URL:       https://git.openjdk.org/loom/commit/68a35511ebd3fd77716242db973104657bc7b541

8364212: Shenandoah: Rework archived objects loading

Reviewed-by: wkemper, kdnilsen

! src/hotspot/share/gc/shenandoah/shenandoahAllocRequest.hpp
! src/hotspot/share/gc/shenandoah/shenandoahFreeSet.cpp
! src/hotspot/share/gc/shenandoah/shenandoahFreeSet.hpp
! src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp
! src/hotspot/share/gc/shenandoah/shenandoahHeapRegion.cpp
! src/hotspot/share/gc/shenandoah/shenandoahHeapRegion.inline.hpp

Changeset: 6656e767
Branch: fibers
Author:    Anton Artemov <anton.artemov at oracle.com>
Committer: David Holmes <dholmes at openjdk.org>
Date:      2025-08-06 04:45:35 +0000
URL:       https://git.openjdk.org/loom/commit/6656e767db05e8e11ea17385674d8aa4385c60ed

8359820: Improve handshake/safepoint timeout diagnostic messages

Reviewed-by: dholmes, stuefe

! src/hotspot/share/runtime/handshake.cpp
! src/hotspot/share/runtime/safepoint.cpp
! src/hotspot/share/utilities/vmError.cpp
! src/hotspot/share/utilities/vmError.hpp
! test/hotspot/jtreg/runtime/Safepoint/TestAbortVMOnSafepointTimeout.java

Changeset: ca416445
Branch: fibers
Author:    Koushik Thirupattur <koushik.thirupattur at oracle.com>
Committer: Per Minborg <pminborg at openjdk.org>
Date:      2025-08-06 06:40:40 +0000
URL:       https://git.openjdk.org/loom/commit/ca41644538c7cba3e2f50b11c5045cf2aa595f7f

8355379: Annotate lazy fields in java.security @Stable

Reviewed-by: pminborg

! src/java.base/share/classes/java/security/PKCS12Attribute.java
! src/java.base/share/classes/java/security/cert/URICertStoreParameters.java
! test/jdk/java/security/PKCS12Attribute/HashCode.java
! test/jdk/java/security/cert/URICertStoreParameters/TestBasic.java

Changeset: 8d529bc4
Branch: fibers
Author:    Joel Sikstr?m <jsikstro at openjdk.org>
Date:      2025-08-06 07:54:44 +0000
URL:       https://git.openjdk.org/loom/commit/8d529bc4f361407b0b5c3ac1e62c3be0f0b8d71c

8364518: Support for Job Objects in os::commit_memory_limit() on Windows

Reviewed-by: ayang, dholmes

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

Changeset: e304d379
Branch: fibers
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-06 08:32:25 +0000
URL:       https://git.openjdk.org/loom/commit/e304d37996b075b8b2b44b5762d7d242169add49

8361211: C2: Final graph reshaping generates unencodeable klass constants

Reviewed-by: kvn, qamai, thartmann, mdoerr

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

Changeset: 9dffbc9c
Branch: fibers
Author:    Per Minborg <pminborg at openjdk.org>
Date:      2025-08-06 08:52:14 +0000
URL:       https://git.openjdk.org/loom/commit/9dffbc9c4cfee7a1f023d548c12194bcf60e4ffd

8364540: Apply @Stable to Shared Secrets

Reviewed-by: rriggs

! src/java.base/share/classes/jdk/internal/access/SharedSecrets.java

Changeset: 0ceb366d
Branch: fibers
Author:    David Beaumont <david.beaumont at oracle.com>
Committer: Jan Lahoda <jlahoda at openjdk.org>
Date:      2025-08-06 08:55:47 +0000
URL:       https://git.openjdk.org/loom/commit/0ceb366dc26e2e4f6252da9dd8930b016a5d46ba

8356645: Javac should utilize new ZIP file system read-only access mode

Reviewed-by: jlahoda

! src/jdk.compiler/share/classes/com/sun/tools/javac/file/FSInfo.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/file/JavacFileManager.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/file/Locations.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/platform/JDKPlatformProvider.java
! test/langtools/tools/javac/api/file/SJFM_TestBase.java
! test/langtools/tools/javac/platform/VerifyCTSymClassFiles.java

Changeset: 72d1066a
Branch: fibers
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-06 12:21:16 +0000
URL:       https://git.openjdk.org/loom/commit/72d1066ae385ce511a70e762ed68afaa72e96ec4

8364722: Parallel: Move CLDG mark clearing to the end of full GC

Reviewed-by: tschatzl, zgu

! src/hotspot/share/gc/parallel/psParallelCompact.cpp

Changeset: f95af744
Branch: fibers
Author:    Guanqiang Han <ghan at openjdk.org>
Committer: Kevin Walls <kevinw at openjdk.org>
Date:      2025-08-06 15:37:31 +0000
URL:       https://git.openjdk.org/loom/commit/f95af744b07a9ec87e2507b3d584cbcddc827bbd

8364312: debug agent should set FD_CLOEXEC flag rather than explicitly closing every open file

Reviewed-by: cjplummer, kevinw

! src/jdk.jdwp.agent/unix/native/libjdwp/exec_md.c

Changeset: 7e484e2a
Branch: fibers
Author:    Alexey Semenyuk <asemenyuk at openjdk.org>
Date:      2025-08-07 02:02:36 +0000
URL:       https://git.openjdk.org/loom/commit/7e484e2a63e40740282b3da5d7b10e9f500bf6ab

8334238: Enhance AddLShortcutTest jpackage test

Reviewed-by: almatvee

! test/jdk/tools/jpackage/apps/PrintEnv.java
+ test/jdk/tools/jpackage/clean_test_output.sh
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/AdditionalLauncher.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/AppImageFile.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/CommandArguments.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/ConfigFilesStasher.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/JPackageCommand.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LauncherAsServiceVerifier.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LauncherIconVerifier.java
+ test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LauncherShortcut.java
+ test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LauncherVerifier.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LinuxHelper.java
+ test/jdk/tools/jpackage/helpers/jdk/jpackage/test/MsiDatabase.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/PackageTest.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/TKit.java
+ test/jdk/tools/jpackage/helpers/jdk/jpackage/test/WinShortcutVerifier.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/WindowsHelper.java
! test/jdk/tools/jpackage/linux/UpgradeTest.java
+ test/jdk/tools/jpackage/resources/msi-export.js
- test/jdk/tools/jpackage/resources/query-msi-property.js
! test/jdk/tools/jpackage/share/AddLShortcutTest.java
! test/jdk/tools/jpackage/share/AddLauncherTest.java
! test/jdk/tools/jpackage/share/PerUserCfgTest.java

Changeset: 078d0d49
Branch: fibers
Author:    David Holmes <dholmes at openjdk.org>
Date:      2025-08-07 04:37:21 +0000
URL:       https://git.openjdk.org/loom/commit/078d0d4968e26bb7a15417f1c4e891869c69dc6c

8364235: Fix for JDK-8361447 breaks the alignment requirements for GuardedMemory

Co-authored-by: Johan Sj?len <jsjolen at openjdk.org>
Reviewed-by: dcubed, jsjolen, aboldtch

! src/hotspot/share/memory/guardedMemory.hpp

Changeset: 487cc3c5
Branch: fibers
Author:    Johannes Bechberger <jbechberger at openjdk.org>
Date:      2025-08-07 07:52:48 +0000
URL:       https://git.openjdk.org/loom/commit/487cc3c5be769d15d61cb950137d52ba0eb982b5

8359690: New test TestCPUTimeSampleThrottling still fails intermittently

Reviewed-by: mbaesken

! test/jdk/jdk/jfr/event/profiling/TestCPUTimeSampleThrottling.java

Changeset: c56fb0b6
Branch: fibers
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-08-07 08:40:42 +0000
URL:       https://git.openjdk.org/loom/commit/c56fb0b6eff7d3f36bc65f300b784e0dd73c563e

8364503: gc/g1/TestCodeCacheUnloadDuringConcCycle.java fails because of race printing to stdout

Reviewed-by: ayang, dholmes

! test/hotspot/jtreg/gc/g1/TestCodeCacheUnloadDuringConcCycle.java

Changeset: 8d73fe91
Branch: fibers
Author:    Jeremy Wood <mickleness at gmail.com>
Committer: Alexey Ivanov <aivanov at openjdk.org>
Date:      2025-08-07 10:21:54 +0000
URL:       https://git.openjdk.org/loom/commit/8d73fe91bccd1da53424b9f8a52d9efafabeb243

8358813: JPasswordField identifies spaces in password via delete shortcuts

Reviewed-by: aivanov, dnguyen

! src/java.desktop/macosx/classes/com/apple/laf/AquaKeyBindings.java
+ test/jdk/javax/swing/JPasswordField/PasswordFieldInputMapWordTest.java

Changeset: bc3d8656
Branch: fibers
Author:    Ashutosh Mehra <asmehra at openjdk.org>
Date:      2025-08-07 13:26:33 +0000
URL:       https://git.openjdk.org/loom/commit/bc3d86564042208cee5119abe11905e747a5ef4c

8364128: Improve gathering of cpu feature names using stringStream

Co-authored-by: Johan Sj?len <jsjolen at openjdk.org>
Reviewed-by: kvn, jsjolen

! src/hotspot/cpu/aarch64/vm_version_aarch64.cpp
! src/hotspot/cpu/aarch64/vm_version_aarch64.hpp
! src/hotspot/cpu/x86/vm_version_x86.cpp
! src/hotspot/cpu/x86/vm_version_x86.hpp
! src/hotspot/os_cpu/bsd_aarch64/vm_version_bsd_aarch64.cpp
! src/hotspot/os_cpu/linux_aarch64/vm_version_linux_aarch64.cpp
! src/hotspot/share/runtime/abstract_vm_version.cpp
! src/hotspot/share/runtime/abstract_vm_version.hpp
! src/hotspot/share/utilities/ostream.hpp

Changeset: 83953c45
Branch: fibers
Author:    Guanqiang Han <ghan at openjdk.org>
Committer: Kevin Walls <kevinw at openjdk.org>
Date:      2025-08-07 14:11:46 +0000
URL:       https://git.openjdk.org/loom/commit/83953c458eb65b2af184340dd460325f2b56e5b9

8364822: Comment cleanup, stale references to closeDescriptors and UNIXProcess.c

Reviewed-by: kevinw, rriggs

! src/hotspot/os/aix/os_aix.cpp
! src/hotspot/os/bsd/os_bsd.cpp
! src/hotspot/os/linux/os_linux.cpp
! src/java.base/unix/native/libjava/childproc.c

Changeset: c711d38a
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-07 16:35:50 +0000
URL:       https://git.openjdk.org/loom/commit/c711d38a53c2556b97ac02f872c6227555e7973e

Merge branch 'master' into fibers


Changeset: 1a932e7d
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-07 12:56:05 +0000
URL:       https://git.openjdk.org/loom/commit/1a932e7d63771e7b7b46f52722b47f84262f310e

Allow for hierarchical polling in pollerMode 3

! src/java.base/linux/classes/sun/nio/ch/EPollPoller.java
! src/java.base/share/classes/sun/nio/ch/IOUtil.java
! src/java.base/share/classes/sun/nio/ch/Poller.java

Changeset: 59a812ff
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-07 16:34:50 +0000
URL:       https://git.openjdk.org/loom/commit/59a812ff6294bd1f48ba2e6d7733fc1d2730b81d

method comments

! src/java.base/linux/classes/sun/nio/ch/EPollPoller.java
! src/java.base/macosx/classes/sun/nio/ch/KQueuePoller.java
! src/java.base/share/classes/sun/nio/ch/Poller.java

Changeset: 43e576e5
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-07 16:35:57 +0000
URL:       https://git.openjdk.org/loom/commit/43e576e58e203a4609438ac0434eeb5956656ff3

Merge loom into fibers



From duke at openjdk.org  Thu Aug  7 16:51:14 2025
From: duke at openjdk.org (duke)
Date: Thu, 7 Aug 2025 16:51:14 GMT
Subject: git: openjdk/loom: master: 20 new changesets
Message-ID: <207e7369-78db-4f4b-99cb-adb9abe7d040@openjdk.org>

Changeset: df736eb5
Branch: master
Author:    Francesco Andreuzzi <andreuzzi.francesco at gmail.com>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-05 10:23:54 +0000
URL:       https://git.openjdk.org/loom/commit/df736eb5822de2e2465df04972b1afb90334db5e

8364618: Sort share/code includes

Reviewed-by: shade, mhaessig

! src/hotspot/share/code/aotCodeCache.cpp
! src/hotspot/share/code/codeBlob.hpp
! src/hotspot/share/code/debugInfo.cpp
! src/hotspot/share/code/dependencies.cpp
! src/hotspot/share/code/dependencyContext.cpp
! src/hotspot/share/code/nmethod.cpp
! test/hotspot/jtreg/sources/TestIncludesAreSorted.java

Changeset: ba0ae4cb
Branch: master
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-05 10:43:30 +0000
URL:       https://git.openjdk.org/loom/commit/ba0ae4cb28aa520d5244077349e35ef1bb475b61

8364254: Serial: Remove soft ref policy update in WhiteBox FullGC

Reviewed-by: tschatzl, sangheki

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

Changeset: 8a571ee7
Branch: master
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-05 14:33:30 +0000
URL:       https://git.openjdk.org/loom/commit/8a571ee7f2d9a46ff485fd9f3658c552e2d20817

8364667: JFR: Throttle doesn't work with dynamic events

Reviewed-by: mgronlun

! src/jdk.jfr/share/classes/jdk/jfr/internal/ClassInspector.java
! src/jdk.jfr/share/classes/jdk/jfr/internal/EventInstrumentation.java
! test/jdk/jdk/jfr/api/metadata/annotations/TestThrottle.java

Changeset: d906e450
Branch: master
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-08-05 16:13:53 +0000
URL:       https://git.openjdk.org/loom/commit/d906e45026f54fe7102e531d3753adc32ff0025c

8364531: G1: Factor out liveness tracing code

Reviewed-by: ayang, sangheki

! src/hotspot/share/gc/g1/g1ConcurrentMark.cpp
! src/hotspot/share/gc/g1/g1ConcurrentMark.hpp

Changeset: 68a35511
Branch: master
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-05 18:34:07 +0000
URL:       https://git.openjdk.org/loom/commit/68a35511ebd3fd77716242db973104657bc7b541

8364212: Shenandoah: Rework archived objects loading

Reviewed-by: wkemper, kdnilsen

! src/hotspot/share/gc/shenandoah/shenandoahAllocRequest.hpp
! src/hotspot/share/gc/shenandoah/shenandoahFreeSet.cpp
! src/hotspot/share/gc/shenandoah/shenandoahFreeSet.hpp
! src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp
! src/hotspot/share/gc/shenandoah/shenandoahHeapRegion.cpp
! src/hotspot/share/gc/shenandoah/shenandoahHeapRegion.inline.hpp

Changeset: 6656e767
Branch: master
Author:    Anton Artemov <anton.artemov at oracle.com>
Committer: David Holmes <dholmes at openjdk.org>
Date:      2025-08-06 04:45:35 +0000
URL:       https://git.openjdk.org/loom/commit/6656e767db05e8e11ea17385674d8aa4385c60ed

8359820: Improve handshake/safepoint timeout diagnostic messages

Reviewed-by: dholmes, stuefe

! src/hotspot/share/runtime/handshake.cpp
! src/hotspot/share/runtime/safepoint.cpp
! src/hotspot/share/utilities/vmError.cpp
! src/hotspot/share/utilities/vmError.hpp
! test/hotspot/jtreg/runtime/Safepoint/TestAbortVMOnSafepointTimeout.java

Changeset: ca416445
Branch: master
Author:    Koushik Thirupattur <koushik.thirupattur at oracle.com>
Committer: Per Minborg <pminborg at openjdk.org>
Date:      2025-08-06 06:40:40 +0000
URL:       https://git.openjdk.org/loom/commit/ca41644538c7cba3e2f50b11c5045cf2aa595f7f

8355379: Annotate lazy fields in java.security @Stable

Reviewed-by: pminborg

! src/java.base/share/classes/java/security/PKCS12Attribute.java
! src/java.base/share/classes/java/security/cert/URICertStoreParameters.java
! test/jdk/java/security/PKCS12Attribute/HashCode.java
! test/jdk/java/security/cert/URICertStoreParameters/TestBasic.java

Changeset: 8d529bc4
Branch: master
Author:    Joel Sikstr?m <jsikstro at openjdk.org>
Date:      2025-08-06 07:54:44 +0000
URL:       https://git.openjdk.org/loom/commit/8d529bc4f361407b0b5c3ac1e62c3be0f0b8d71c

8364518: Support for Job Objects in os::commit_memory_limit() on Windows

Reviewed-by: ayang, dholmes

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

Changeset: e304d379
Branch: master
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-06 08:32:25 +0000
URL:       https://git.openjdk.org/loom/commit/e304d37996b075b8b2b44b5762d7d242169add49

8361211: C2: Final graph reshaping generates unencodeable klass constants

Reviewed-by: kvn, qamai, thartmann, mdoerr

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

Changeset: 9dffbc9c
Branch: master
Author:    Per Minborg <pminborg at openjdk.org>
Date:      2025-08-06 08:52:14 +0000
URL:       https://git.openjdk.org/loom/commit/9dffbc9c4cfee7a1f023d548c12194bcf60e4ffd

8364540: Apply @Stable to Shared Secrets

Reviewed-by: rriggs

! src/java.base/share/classes/jdk/internal/access/SharedSecrets.java

Changeset: 0ceb366d
Branch: master
Author:    David Beaumont <david.beaumont at oracle.com>
Committer: Jan Lahoda <jlahoda at openjdk.org>
Date:      2025-08-06 08:55:47 +0000
URL:       https://git.openjdk.org/loom/commit/0ceb366dc26e2e4f6252da9dd8930b016a5d46ba

8356645: Javac should utilize new ZIP file system read-only access mode

Reviewed-by: jlahoda

! src/jdk.compiler/share/classes/com/sun/tools/javac/file/FSInfo.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/file/JavacFileManager.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/file/Locations.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/platform/JDKPlatformProvider.java
! test/langtools/tools/javac/api/file/SJFM_TestBase.java
! test/langtools/tools/javac/platform/VerifyCTSymClassFiles.java

Changeset: 72d1066a
Branch: master
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-06 12:21:16 +0000
URL:       https://git.openjdk.org/loom/commit/72d1066ae385ce511a70e762ed68afaa72e96ec4

8364722: Parallel: Move CLDG mark clearing to the end of full GC

Reviewed-by: tschatzl, zgu

! src/hotspot/share/gc/parallel/psParallelCompact.cpp

Changeset: f95af744
Branch: master
Author:    Guanqiang Han <ghan at openjdk.org>
Committer: Kevin Walls <kevinw at openjdk.org>
Date:      2025-08-06 15:37:31 +0000
URL:       https://git.openjdk.org/loom/commit/f95af744b07a9ec87e2507b3d584cbcddc827bbd

8364312: debug agent should set FD_CLOEXEC flag rather than explicitly closing every open file

Reviewed-by: cjplummer, kevinw

! src/jdk.jdwp.agent/unix/native/libjdwp/exec_md.c

Changeset: 7e484e2a
Branch: master
Author:    Alexey Semenyuk <asemenyuk at openjdk.org>
Date:      2025-08-07 02:02:36 +0000
URL:       https://git.openjdk.org/loom/commit/7e484e2a63e40740282b3da5d7b10e9f500bf6ab

8334238: Enhance AddLShortcutTest jpackage test

Reviewed-by: almatvee

! test/jdk/tools/jpackage/apps/PrintEnv.java
+ test/jdk/tools/jpackage/clean_test_output.sh
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/AdditionalLauncher.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/AppImageFile.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/CommandArguments.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/ConfigFilesStasher.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/JPackageCommand.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LauncherAsServiceVerifier.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LauncherIconVerifier.java
+ test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LauncherShortcut.java
+ test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LauncherVerifier.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LinuxHelper.java
+ test/jdk/tools/jpackage/helpers/jdk/jpackage/test/MsiDatabase.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/PackageTest.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/TKit.java
+ test/jdk/tools/jpackage/helpers/jdk/jpackage/test/WinShortcutVerifier.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/WindowsHelper.java
! test/jdk/tools/jpackage/linux/UpgradeTest.java
+ test/jdk/tools/jpackage/resources/msi-export.js
- test/jdk/tools/jpackage/resources/query-msi-property.js
! test/jdk/tools/jpackage/share/AddLShortcutTest.java
! test/jdk/tools/jpackage/share/AddLauncherTest.java
! test/jdk/tools/jpackage/share/PerUserCfgTest.java

Changeset: 078d0d49
Branch: master
Author:    David Holmes <dholmes at openjdk.org>
Date:      2025-08-07 04:37:21 +0000
URL:       https://git.openjdk.org/loom/commit/078d0d4968e26bb7a15417f1c4e891869c69dc6c

8364235: Fix for JDK-8361447 breaks the alignment requirements for GuardedMemory

Co-authored-by: Johan Sj?len <jsjolen at openjdk.org>
Reviewed-by: dcubed, jsjolen, aboldtch

! src/hotspot/share/memory/guardedMemory.hpp

Changeset: 487cc3c5
Branch: master
Author:    Johannes Bechberger <jbechberger at openjdk.org>
Date:      2025-08-07 07:52:48 +0000
URL:       https://git.openjdk.org/loom/commit/487cc3c5be769d15d61cb950137d52ba0eb982b5

8359690: New test TestCPUTimeSampleThrottling still fails intermittently

Reviewed-by: mbaesken

! test/jdk/jdk/jfr/event/profiling/TestCPUTimeSampleThrottling.java

Changeset: c56fb0b6
Branch: master
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-08-07 08:40:42 +0000
URL:       https://git.openjdk.org/loom/commit/c56fb0b6eff7d3f36bc65f300b784e0dd73c563e

8364503: gc/g1/TestCodeCacheUnloadDuringConcCycle.java fails because of race printing to stdout

Reviewed-by: ayang, dholmes

! test/hotspot/jtreg/gc/g1/TestCodeCacheUnloadDuringConcCycle.java

Changeset: 8d73fe91
Branch: master
Author:    Jeremy Wood <mickleness at gmail.com>
Committer: Alexey Ivanov <aivanov at openjdk.org>
Date:      2025-08-07 10:21:54 +0000
URL:       https://git.openjdk.org/loom/commit/8d73fe91bccd1da53424b9f8a52d9efafabeb243

8358813: JPasswordField identifies spaces in password via delete shortcuts

Reviewed-by: aivanov, dnguyen

! src/java.desktop/macosx/classes/com/apple/laf/AquaKeyBindings.java
+ test/jdk/javax/swing/JPasswordField/PasswordFieldInputMapWordTest.java

Changeset: bc3d8656
Branch: master
Author:    Ashutosh Mehra <asmehra at openjdk.org>
Date:      2025-08-07 13:26:33 +0000
URL:       https://git.openjdk.org/loom/commit/bc3d86564042208cee5119abe11905e747a5ef4c

8364128: Improve gathering of cpu feature names using stringStream

Co-authored-by: Johan Sj?len <jsjolen at openjdk.org>
Reviewed-by: kvn, jsjolen

! src/hotspot/cpu/aarch64/vm_version_aarch64.cpp
! src/hotspot/cpu/aarch64/vm_version_aarch64.hpp
! src/hotspot/cpu/x86/vm_version_x86.cpp
! src/hotspot/cpu/x86/vm_version_x86.hpp
! src/hotspot/os_cpu/bsd_aarch64/vm_version_bsd_aarch64.cpp
! src/hotspot/os_cpu/linux_aarch64/vm_version_linux_aarch64.cpp
! src/hotspot/share/runtime/abstract_vm_version.cpp
! src/hotspot/share/runtime/abstract_vm_version.hpp
! src/hotspot/share/utilities/ostream.hpp

Changeset: 83953c45
Branch: master
Author:    Guanqiang Han <ghan at openjdk.org>
Committer: Kevin Walls <kevinw at openjdk.org>
Date:      2025-08-07 14:11:46 +0000
URL:       https://git.openjdk.org/loom/commit/83953c458eb65b2af184340dd460325f2b56e5b9

8364822: Comment cleanup, stale references to closeDescriptors and UNIXProcess.c

Reviewed-by: kevinw, rriggs

! src/hotspot/os/aix/os_aix.cpp
! src/hotspot/os/bsd/os_bsd.cpp
! src/hotspot/os/linux/os_linux.cpp
! src/java.base/unix/native/libjava/childproc.c


From dev at anthonyv.be  Fri Aug  8 11:56:13 2025
From: dev at anthonyv.be (Anthony Vanelverdinghe)
Date: Fri, 8 Aug 2025 13:56:13 +0200
Subject: Feedback: FailedException and Joiner
Message-ID: <7fd06513-e690-442f-b8ad-ff3c133eb92b@anthonyv.be>

Here's my feedback from upgrading my Loom experiments to JDK 25:

I suddenly realized the code compiled, even though I hadn't implemented 
any error handling yet: turns out this is done via FailedException now, 
which is a RuntimeException.
Personally, I'd much rather have a checked exception here: the Subtasks 
might be Callables that throw checked exceptions like IOException and 
SQLException, and I'd like the compiler to notify me that I haven't 
dealt with them yet. In fact, such exceptions are likely, since 
structured concurrency is often used for IO-bound tasks. Also note that 
`j.u.c.ExecutionException` is a checked exception as well.
That being said: in cases where the scope can only ever throw an 
unchecked exception, having to deal with a checked exception is a nuisance.

To improve this, I propose replacing `join` with `joinUnchecked throws 
UncheckedFailedException` and `joinChecked throws FailedException, 
UncheckedFailedException`. That way the developer always has to make a 
conscious choice. The former would work just like `join` does today. The 
latter would check the `Throwable` coming from `result()`: if it's a 
checked exception, it would throw `FailedException`, else it would throw 
`UncheckedFailedException`. (Note that we could reuse 
`j.u.c.ExecutionException` here and simply introduce 
`j.u.c.UncheckedExecutionException`.)

For `StructuredTaskScope.Joiner` I propose to:

* use `Success` instead of `Successful` in the method names, to match 
`Subtask.State.SUCCESS`
* add `all` as the result-returning equivalent of `awaitAll`
* have `allSuccessOrThrow` return `Stream<T>`, because in my experience 
it's only ever followed by `.map(Subtask::get)` (and `anySuccessOrThrow` 
also returns just `T` instead of `Subtask<T>`)
* change the parameter type of `allUntil` to `Predicate<? super 
StructuredTaskScope.Subtask<? extends T>>` to allow passing in an 
existing `Predicate<Object>` (e.g., `o -> true`)

Also please consider adding factory methods that take a `Collector` 
(possibly with an overload that takes a `Predicate isDone` as well) or 
`Gatherer` like below. This allows type inference to work its magic. 
With the current `allSuccessOrThrow()`, you have to provide the type 
argument or you end up with `join` returning a `Stream<Subtask<Object>>`.

* `<T, R> StructuredTaskScope.Joiner<T, R> allSuccessOrThrow(Collector<? 
super T, ?, ? extends R> collector)`
* `<T, R> StructuredTaskScope.Joiner<T, Stream<R>> 
allSuccessOrThrow(Gatherer<? super T, ?, ? extends R> gatherer)`

Kind regards
Anthony


From alan.bateman at oracle.com  Fri Aug  8 12:40:14 2025
From: alan.bateman at oracle.com (Alan Bateman)
Date: Fri, 8 Aug 2025 13:40:14 +0100
Subject: Feedback: FailedException and Joiner
In-Reply-To: <7fd06513-e690-442f-b8ad-ff3c133eb92b@anthonyv.be>
References: <7fd06513-e690-442f-b8ad-ff3c133eb92b@anthonyv.be>
Message-ID: <35b30239-bdbc-472c-b1bd-b5d303e4a7d6@oracle.com>


On 08/08/2025 12:56, Anthony Vanelverdinghe wrote:
> Here's my feedback from upgrading my Loom experiments to JDK 25:

Can you provide a summary of your experiments? The most useful feedback 
is usually from experiments with real world applications and scenarios 
so it would be interesting to know more about your usages, a bit on what 
the subtasks do and what they return (the focus on the latter is to get 
some sense on whether the subtasks return results of the same types or 
different types).

-Alan

From duke at openjdk.org  Fri Aug  8 13:43:26 2025
From: duke at openjdk.org (duke)
Date: Fri, 8 Aug 2025 13:43:26 GMT
Subject: git: openjdk/loom: fibers: 23 new changesets
Message-ID: <d47975b8-d4fe-4638-830d-67f1ce8695e8@openjdk.org>

Changeset: e606278f
Branch: fibers
Author:    Francesco Andreuzzi <andreuzzi.francesco at gmail.com>
Committer: Manuel H?ssig <mhaessig at openjdk.org>
Date:      2025-08-07 15:43:36 +0000
URL:       https://git.openjdk.org/loom/commit/e606278fc8929fe563dd50a1c3f332747e210276

8358598: PhaseIterGVN::PhaseIterGVN(PhaseGVN* gvn) doesn't use its parameter

Reviewed-by: galder, mhaessig, shade

! src/hotspot/share/opto/compile.cpp
! src/hotspot/share/opto/phaseX.cpp
! src/hotspot/share/opto/phaseX.hpp
! src/hotspot/share/opto/vector.cpp

Changeset: e29346db
Branch: fibers
Author:    Prasanta Sadhukhan <psadhukhan at openjdk.org>
Date:      2025-08-07 16:03:12 +0000
URL:       https://git.openjdk.org/loom/commit/e29346dbd6328dcadc347a70d8c06ce141efef02

8348760: RadioButton is not shown if JRadioButtonMenuItem is rendered with ImageIcon in WindowsLookAndFeel

Reviewed-by: prr, kizune, abhiscxk

! src/java.desktop/share/classes/com/sun/java/swing/SwingUtilities3.java
! src/java.desktop/share/classes/javax/swing/plaf/basic/BasicMenuItemUI.java
! src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsCheckBoxMenuItemUI.java
! src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsIconFactory.java
! src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsMenuItemUI.java
! src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsMenuUI.java
! src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsRadioButtonMenuItemUI.java
+ test/jdk/javax/swing/JMenuItem/TestRadioAndCheckMenuItemWithIcon.java

Changeset: 90ea42f7
Branch: fibers
Author:    Andrew Dinn <adinn at openjdk.org>
Date:      2025-08-07 16:23:32 +0000
URL:       https://git.openjdk.org/loom/commit/90ea42f716770fd567e4e3b3bf7466fa93964f07

8364558: Failure to generate compiler stubs from compiler thread should not crash VM when compilation disabled due to full CodeCache

Reviewed-by: kvn, shade

! src/hotspot/share/opto/c2compiler.cpp
! src/hotspot/share/runtime/stubRoutines.cpp

Changeset: 02e18711
Branch: fibers
Author:    Brian Burkhalter <bpb at openjdk.org>
Date:      2025-08-07 18:24:22 +0000
URL:       https://git.openjdk.org/loom/commit/02e187119d0ca94d46e631a174c55db4945f3295

8364277: (fs) BasicFileAttributes.isDirectory and isOther return true for NTFS directory junctions when links not followed

Reviewed-by: alanb

! src/java.base/windows/classes/sun/nio/fs/WindowsConstants.java
! src/java.base/windows/classes/sun/nio/fs/WindowsFileAttributes.java
! src/java.base/windows/classes/sun/nio/fs/WindowsFileSystemProvider.java
! test/jdk/java/nio/file/attribute/BasicFileAttributeView/Basic.java
! test/lib/jdk/test/lib/util/FileUtils.java
! test/lib/jdk/test/lib/util/libFileUtils.c

Changeset: 78117eff
Branch: fibers
Author:    Phil Race <prr at openjdk.org>
Date:      2025-08-07 18:58:28 +0000
URL:       https://git.openjdk.org/loom/commit/78117eff563e59a738c59efa7ef595b13f62b621

8364230: javax/swing/text/StringContent can be migrated away from using finalize

Reviewed-by: psadhukhan, abhiscxk, kizune

! src/java.desktop/share/classes/javax/swing/text/StringContent.java
+ test/jdk/javax/swing/text/AbstractDocument/StringContentPositionTest.java

Changeset: 5116d9e5
Branch: fibers
Author:    Brett Okken <brett.okken at oracle.com>
Committer: Brian Burkhalter <bpb at openjdk.org>
Date:      2025-08-07 19:27:28 +0000
URL:       https://git.openjdk.org/loom/commit/5116d9e5fe6b63f12e9ae0eb5283433256872dc1

8364213: (bf) Improve java/nio/Buffer/CharBufferAsCharSequenceTest test comments
8364345: Test java/nio/Buffer/CharBufferAsCharSequenceTest.java failed

Reviewed-by: bpb, rriggs

! test/jdk/java/nio/Buffer/CharBufferAsCharSequenceTest.java

Changeset: c0e6ffab
Branch: fibers
Author:    Liam Miller-Cushon <cushon at openjdk.org>
Date:      2025-08-07 19:43:45 +0000
URL:       https://git.openjdk.org/loom/commit/c0e6ffabc216279068ab887939028ca27f5143f2

8364954: (bf) CleaningThread should be InnocuousThread

Reviewed-by: rriggs, alanb

! src/java.base/share/classes/java/nio/BufferCleaner.java

Changeset: 244e6293
Branch: fibers
Author:    Alexey Semenyuk <asemenyuk at openjdk.org>
Date:      2025-08-07 19:55:41 +0000
URL:       https://git.openjdk.org/loom/commit/244e6293c3b332105658900639a9f3db7b21a9fe

8364984: Many jpackage tests are failing on Linux after JDK-8334238

Reviewed-by: almatvee

! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LinuxHelper.java

Changeset: b8acbc3e
Branch: fibers
Author:    Ayush Rigal <ayush.rigal at oracle.com>
Committer: Mark Sheppard <msheppar at openjdk.org>
Date:      2025-08-07 21:11:26 +0000
URL:       https://git.openjdk.org/loom/commit/b8acbc3ed8675ad4cc4b9dea69ee1e87c2a2ca45

8364315: Remove unused xml files from test/jaxp/javax/xml/jaxp/functional/javax/xml/transform/xmlfiles

Reviewed-by: jpai, joehw

- test/jaxp/javax/xml/jaxp/functional/javax/xml/transform/xmlfiles/lexical.xml
- test/jaxp/javax/xml/jaxp/functional/javax/xml/transform/xmlfiles/out/doctypeGF.out
- test/jaxp/javax/xml/jaxp/functional/javax/xml/transform/xmlfiles/publish2.xml
- test/jaxp/javax/xml/jaxp/functional/org/xml/sax/xmlfiles/out/DTDHandlerGF.out

Changeset: c71be802
Branch: fibers
Author:    Harshitha Onkar <honkar at openjdk.org>
Date:      2025-08-07 21:19:47 +0000
URL:       https://git.openjdk.org/loom/commit/c71be802b530034169d17325478dba6e2f1c3238

8361748: Enforce limits on the size of an XBM image

Reviewed-by: prr, jdv

! src/java.desktop/share/classes/sun/awt/image/XbmImageDecoder.java
+ test/jdk/java/awt/image/XBMDecoder/XBMDecoderTest.java
+ test/jdk/java/awt/image/XBMDecoder/invalid.xbm
+ test/jdk/java/awt/image/XBMDecoder/invalid_hex.xbm
+ test/jdk/java/awt/image/XBMDecoder/invalid_ht.xbm
+ test/jdk/java/awt/image/XBMDecoder/valid.xbm
+ test/jdk/java/awt/image/XBMDecoder/valid_hex.xbm

Changeset: 4c9eadda
Branch: fibers
Author:    John Jiang <jjiang at openjdk.org>
Date:      2025-08-08 02:27:30 +0000
URL:       https://git.openjdk.org/loom/commit/4c9eaddaef83c6ba30e27ae3e0d16caeeec206cb

8364597: Replace THL A29 Limited with Tencent

Reviewed-by: jiefu

! src/hotspot/cpu/x86/stubGenerator_x86_64_exp.cpp
! src/hotspot/cpu/x86/stubGenerator_x86_64_log.cpp
! src/hotspot/cpu/x86/stubGenerator_x86_64_pow.cpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.cpp
! src/hotspot/share/gc/shenandoah/shenandoahControlThread.cpp
! src/hotspot/share/gc/shenandoah/shenandoahGenerationalControlThread.cpp
! test/hotspot/jtreg/compiler/arraycopy/TestIllegalArrayCopyBeforeInfiniteLoop.java
! test/hotspot/jtreg/compiler/arraycopy/TestNegArrayLengthAsIndex1.java
! test/hotspot/jtreg/compiler/arraycopy/TestNegArrayLengthAsIndex2.java
! test/hotspot/jtreg/compiler/arraycopy/TestNegativeArrayCopyAfterLoop.java
! test/hotspot/jtreg/compiler/c1/TestRangeCheckEliminated.java
! test/hotspot/jtreg/compiler/c2/TestDuplicateSimpleLoopBackedge.java
! test/hotspot/jtreg/compiler/c2/cr6865031/Test.java
! test/hotspot/jtreg/compiler/c2/irTests/TestAutoVectorization2DArray.java
! test/hotspot/jtreg/compiler/compilercontrol/TestConflictInlineCommands.java
! test/hotspot/jtreg/compiler/debug/TraceIterativeGVN.java
! test/hotspot/jtreg/compiler/intrinsics/math/TestPow0Dot5Opt.java
! test/hotspot/jtreg/compiler/intrinsics/math/TestPow2Opt.java
! test/hotspot/jtreg/compiler/intrinsics/sha/cli/TestUseSHA3IntrinsicsOptionOnSupportedCPU.java
! test/hotspot/jtreg/compiler/intrinsics/sha/cli/TestUseSHA3IntrinsicsOptionOnUnsupportedCPU.java
! test/hotspot/jtreg/compiler/jvmci/errors/TestInvalidTieredStopAtLevel.java
! test/hotspot/jtreg/compiler/loopopts/TestLoopEndNodeEliminate.java
! test/hotspot/jtreg/compiler/loopopts/TestLoopPredicateDep.java
! test/hotspot/jtreg/compiler/loopopts/TestSkeletonPredicateNegation.java
! test/hotspot/jtreg/compiler/oracle/TestInvalidCompileCommand.java
! test/hotspot/jtreg/compiler/print/TestTraceOptoParse.java
! test/hotspot/jtreg/compiler/regalloc/TestGCMRecalcPressureNodes.java
! test/hotspot/jtreg/compiler/unsafe/TestMisalignedUnsafeAccess.java
! test/hotspot/jtreg/compiler/vectorapi/TestIntrinsicBailOut.java
! test/hotspot/jtreg/compiler/vectorapi/TestVectorErgonomics.java
! test/hotspot/jtreg/compiler/vectorapi/VectorReinterpretTest.java
! test/hotspot/jtreg/containers/docker/TestMemoryWithCgroupV1.java
! test/hotspot/jtreg/gc/arguments/TestG1CompressedOops.java
! test/hotspot/jtreg/runtime/cds/appcds/FillerObjectLoadTest.java
! test/jdk/java/lang/Thread/virtual/ParkWithFixedThreadPool.java
! test/jdk/javax/net/ssl/DTLS/DTLSNamedGroups.java
! test/jdk/javax/net/ssl/DTLS/DTLSSignatureSchemes.java
! test/jdk/javax/net/ssl/SSLException/CheckSSLHandshakeException.java
! test/jdk/javax/net/ssl/SSLException/CheckSSLKeyException.java
! test/jdk/javax/net/ssl/SSLException/CheckSSLPeerUnverifiedException.java
! test/jdk/javax/net/ssl/SSLException/CheckSSLProtocolException.java
! test/jdk/javax/net/ssl/SSLParameters/NamedGroups.java
! test/jdk/javax/net/ssl/SSLParameters/NamedGroupsSpec.java
! test/jdk/javax/net/ssl/SSLParameters/SignatureSchemes.java
! test/jdk/javax/net/ssl/ServerName/EndingDotHostname.java
! test/jdk/javax/net/ssl/templates/SSLExampleCert.java
! test/jdk/javax/security/auth/callback/PasswordCallback/CheckCleanerBound.java
! test/jdk/javax/security/auth/callback/PasswordCallback/PasswordCleanup.java
! test/jdk/jdk/internal/platform/docker/GetFreeSwapSpaceSize.java
! test/jdk/jdk/internal/platform/docker/TestGetFreeSwapSpaceSize.java
! test/jdk/sun/security/ec/ECDHKeyAgreementParamValidation.java
! test/jdk/sun/security/jgss/GssContextCleanup.java
! test/jdk/sun/security/jgss/GssNameCleanup.java
! test/jdk/sun/security/ssl/SignatureScheme/SigAlgosExtTestWithTLS12.java
! test/jdk/sun/security/ssl/SignatureScheme/SigAlgosExtTestWithTLS13.java
! test/micro/org/openjdk/bench/java/security/Signatures.java
! test/micro/org/openjdk/bench/vm/compiler/AutoVectorization2DArray.java
! test/micro/org/openjdk/bench/vm/compiler/LoopUnroll.java

Changeset: d0624f8b
Branch: fibers
Author:    Andrey Turbanov <aturbanov at openjdk.org>
Date:      2025-08-08 05:03:55 +0000
URL:       https://git.openjdk.org/loom/commit/d0624f8b62fe0c70e5b6a47e05235ca65a2e1a13

8364808: Make BasicDesktopPaneUI.Actions.MOVE_RESIZE_INCREMENT static

Reviewed-by: tr, azvegint, kizune, aivanov

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

Changeset: 198782c9
Branch: fibers
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-08-08 07:54:23 +0000
URL:       https://git.openjdk.org/loom/commit/198782c957c728ed959d1fd31e2c2ff6cd1a9bb5

8364877: G1: Inline G1CollectedHeap::set_region_short_lived_locked

Reviewed-by: ayang, sangheki

! src/hotspot/share/gc/g1/g1CollectedHeap.cpp
! src/hotspot/share/gc/g1/g1CollectedHeap.hpp
! src/hotspot/share/gc/g1/g1EdenRegions.hpp
! src/hotspot/share/gc/g1/g1Policy.hpp

Changeset: bcca5cee
Branch: fibers
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-08-08 07:56:29 +0000
URL:       https://git.openjdk.org/loom/commit/bcca5cee2d788c745bea55388b2844b395519ed0

8364642: G1: Remove parameter in G1CollectedHeap::abandon_collection_set()

Reviewed-by: ayang

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

Changeset: 47017e38
Branch: fibers
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-08-08 07:57:06 +0000
URL:       https://git.openjdk.org/loom/commit/47017e38642a58fd6425ec68c1fed96f19f39404

8364760: G1: Remove obsolete code in G1MergeCardSetClosure

Reviewed-by: ayang, sangheki

! src/hotspot/share/gc/g1/g1RemSet.cpp

Changeset: a26a6f31
Branch: fibers
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-08-08 08:06:56 +0000
URL:       https://git.openjdk.org/loom/commit/a26a6f31524aba61ed83bf3ffdc7713e3e5f5911

8364649: G1: Move collection set related full gc reset code into abandon_collection_set() method

Reviewed-by: ayang, sangheki

! src/hotspot/share/gc/g1/g1CollectedHeap.cpp
! src/hotspot/share/gc/g1/g1FullCollector.cpp
! src/hotspot/share/gc/g1/g1Policy.cpp

Changeset: 1b3e2311
Branch: fibers
Author:    Afshin Zafari <azafari at openjdk.org>
Date:      2025-08-08 09:06:43 +0000
URL:       https://git.openjdk.org/loom/commit/1b3e23110b2262e470a8c520b977273fd6a9e8d1

8360048: NMT crash in gtest/NMTGtests.java: fatal error: NMT corruption: Block at 0x0000017748307120: header canary broken

Reviewed-by: jsjolen, gziemski

! src/hotspot/share/nmt/memBaseline.cpp
! src/hotspot/share/nmt/memReporter.cpp
! src/hotspot/share/nmt/virtualMemoryTracker.cpp
! src/hotspot/share/nmt/virtualMemoryTracker.hpp
! test/hotspot/gtest/runtime/test_virtualMemoryTracker.cpp

Changeset: 241808e1
Branch: fibers
Author:    Andrew Dinn <adinn at openjdk.org>
Date:      2025-08-08 09:12:08 +0000
URL:       https://git.openjdk.org/loom/commit/241808e13fb032b0ec192e0b7ff94891a653ac94

8364269: Simplify code cache API by storing adapter entry offsets in blob

Reviewed-by: kvn, shade, asmehra

! src/hotspot/share/code/aotCodeCache.cpp
! src/hotspot/share/code/aotCodeCache.hpp
! src/hotspot/share/code/codeBlob.cpp
! src/hotspot/share/code/codeBlob.hpp
! src/hotspot/share/runtime/sharedRuntime.cpp

Changeset: c7c715c6
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-08 12:22:37 +0000
URL:       https://git.openjdk.org/loom/commit/c7c715c61dc6ccf6c5dfb82ba1f52e1e1980dc1c

Merge branch 'master' into fibers

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

Changeset: 7d4490f1
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-08 10:55:45 +0000
URL:       https://git.openjdk.org/loom/commit/7d4490f190028ca46158be6444578de818ab0fe8

Sync up from pull/26612

! src/hotspot/share/services/threadService.cpp
! src/java.base/share/classes/java/lang/System.java
! src/java.base/share/classes/java/lang/VirtualThread.java
! src/java.base/share/classes/jdk/internal/access/JavaLangAccess.java

Changeset: 676718df
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-08 13:16:21 +0000
URL:       https://git.openjdk.org/loom/commit/676718df37a9988491898c9889c100814690b9d3

Bringover prototype io_uring from sandbox
Contributed-by: michael.x.mcmahon at oracle.com

+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/__kernel_timespec.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/epoll_data.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/epoll_data_t.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/epoll_event.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/in6_addr.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/in_addr.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/io_cqring_offsets.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/io_sqring_offsets.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/io_uring_cqe.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/io_uring_params.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/io_uring_rsrc_register.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/io_uring_sqe.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/iouring_h.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/iouring_h_1.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/iovec.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/sockaddr.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/sockaddr_in.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/sockaddr_in6.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/sockaddr_storage.java
+ src/java.base/linux/classes/jdk/internal/ffi/generated/iouring/timespec.java
+ src/java.base/linux/classes/sun/nio/ch/iouring/Cqe.java
+ src/java.base/linux/classes/sun/nio/ch/iouring/IOUringImpl.java
+ src/java.base/linux/classes/sun/nio/ch/iouring/IoUring.java
+ src/java.base/linux/classes/sun/nio/ch/iouring/KMappedBuffers.java
+ src/java.base/linux/classes/sun/nio/ch/iouring/Sqe.java
+ src/java.base/linux/classes/sun/nio/ch/iouring/SystemCallContext.java
+ src/java.base/linux/classes/sun/nio/ch/iouring/Util.java

Changeset: 79f0744e
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-08 13:18:03 +0000
URL:       https://git.openjdk.org/loom/commit/79f0744e4fb2275a6701b87d5acad91e3821b9b7

Opt-in and experimental poller based on io_uring

! src/java.base/linux/classes/sun/nio/ch/DefaultPollerProvider.java
+ src/java.base/linux/classes/sun/nio/ch/IoUringPoller.java
! test/jdk/java/nio/channels/vthread/BlockingChannelOps.java

Changeset: 26b0dcc5
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-08 13:18:29 +0000
URL:       https://git.openjdk.org/loom/commit/26b0dcc5fe40e59034de98cfb8093cc20cc69685

Merge loom into fibers



From duke at openjdk.org  Fri Aug  8 13:44:26 2025
From: duke at openjdk.org (duke)
Date: Fri, 8 Aug 2025 13:44:26 GMT
Subject: git: openjdk/loom: master: 18 new changesets
Message-ID: <e17d672c-a49e-4527-9d8d-d16efbb17063@openjdk.org>

Changeset: e606278f
Branch: master
Author:    Francesco Andreuzzi <andreuzzi.francesco at gmail.com>
Committer: Manuel H?ssig <mhaessig at openjdk.org>
Date:      2025-08-07 15:43:36 +0000
URL:       https://git.openjdk.org/loom/commit/e606278fc8929fe563dd50a1c3f332747e210276

8358598: PhaseIterGVN::PhaseIterGVN(PhaseGVN* gvn) doesn't use its parameter

Reviewed-by: galder, mhaessig, shade

! src/hotspot/share/opto/compile.cpp
! src/hotspot/share/opto/phaseX.cpp
! src/hotspot/share/opto/phaseX.hpp
! src/hotspot/share/opto/vector.cpp

Changeset: e29346db
Branch: master
Author:    Prasanta Sadhukhan <psadhukhan at openjdk.org>
Date:      2025-08-07 16:03:12 +0000
URL:       https://git.openjdk.org/loom/commit/e29346dbd6328dcadc347a70d8c06ce141efef02

8348760: RadioButton is not shown if JRadioButtonMenuItem is rendered with ImageIcon in WindowsLookAndFeel

Reviewed-by: prr, kizune, abhiscxk

! src/java.desktop/share/classes/com/sun/java/swing/SwingUtilities3.java
! src/java.desktop/share/classes/javax/swing/plaf/basic/BasicMenuItemUI.java
! src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsCheckBoxMenuItemUI.java
! src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsIconFactory.java
! src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsMenuItemUI.java
! src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsMenuUI.java
! src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsRadioButtonMenuItemUI.java
+ test/jdk/javax/swing/JMenuItem/TestRadioAndCheckMenuItemWithIcon.java

Changeset: 90ea42f7
Branch: master
Author:    Andrew Dinn <adinn at openjdk.org>
Date:      2025-08-07 16:23:32 +0000
URL:       https://git.openjdk.org/loom/commit/90ea42f716770fd567e4e3b3bf7466fa93964f07

8364558: Failure to generate compiler stubs from compiler thread should not crash VM when compilation disabled due to full CodeCache

Reviewed-by: kvn, shade

! src/hotspot/share/opto/c2compiler.cpp
! src/hotspot/share/runtime/stubRoutines.cpp

Changeset: 02e18711
Branch: master
Author:    Brian Burkhalter <bpb at openjdk.org>
Date:      2025-08-07 18:24:22 +0000
URL:       https://git.openjdk.org/loom/commit/02e187119d0ca94d46e631a174c55db4945f3295

8364277: (fs) BasicFileAttributes.isDirectory and isOther return true for NTFS directory junctions when links not followed

Reviewed-by: alanb

! src/java.base/windows/classes/sun/nio/fs/WindowsConstants.java
! src/java.base/windows/classes/sun/nio/fs/WindowsFileAttributes.java
! src/java.base/windows/classes/sun/nio/fs/WindowsFileSystemProvider.java
! test/jdk/java/nio/file/attribute/BasicFileAttributeView/Basic.java
! test/lib/jdk/test/lib/util/FileUtils.java
! test/lib/jdk/test/lib/util/libFileUtils.c

Changeset: 78117eff
Branch: master
Author:    Phil Race <prr at openjdk.org>
Date:      2025-08-07 18:58:28 +0000
URL:       https://git.openjdk.org/loom/commit/78117eff563e59a738c59efa7ef595b13f62b621

8364230: javax/swing/text/StringContent can be migrated away from using finalize

Reviewed-by: psadhukhan, abhiscxk, kizune

! src/java.desktop/share/classes/javax/swing/text/StringContent.java
+ test/jdk/javax/swing/text/AbstractDocument/StringContentPositionTest.java

Changeset: 5116d9e5
Branch: master
Author:    Brett Okken <brett.okken at oracle.com>
Committer: Brian Burkhalter <bpb at openjdk.org>
Date:      2025-08-07 19:27:28 +0000
URL:       https://git.openjdk.org/loom/commit/5116d9e5fe6b63f12e9ae0eb5283433256872dc1

8364213: (bf) Improve java/nio/Buffer/CharBufferAsCharSequenceTest test comments
8364345: Test java/nio/Buffer/CharBufferAsCharSequenceTest.java failed

Reviewed-by: bpb, rriggs

! test/jdk/java/nio/Buffer/CharBufferAsCharSequenceTest.java

Changeset: c0e6ffab
Branch: master
Author:    Liam Miller-Cushon <cushon at openjdk.org>
Date:      2025-08-07 19:43:45 +0000
URL:       https://git.openjdk.org/loom/commit/c0e6ffabc216279068ab887939028ca27f5143f2

8364954: (bf) CleaningThread should be InnocuousThread

Reviewed-by: rriggs, alanb

! src/java.base/share/classes/java/nio/BufferCleaner.java

Changeset: 244e6293
Branch: master
Author:    Alexey Semenyuk <asemenyuk at openjdk.org>
Date:      2025-08-07 19:55:41 +0000
URL:       https://git.openjdk.org/loom/commit/244e6293c3b332105658900639a9f3db7b21a9fe

8364984: Many jpackage tests are failing on Linux after JDK-8334238

Reviewed-by: almatvee

! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LinuxHelper.java

Changeset: b8acbc3e
Branch: master
Author:    Ayush Rigal <ayush.rigal at oracle.com>
Committer: Mark Sheppard <msheppar at openjdk.org>
Date:      2025-08-07 21:11:26 +0000
URL:       https://git.openjdk.org/loom/commit/b8acbc3ed8675ad4cc4b9dea69ee1e87c2a2ca45

8364315: Remove unused xml files from test/jaxp/javax/xml/jaxp/functional/javax/xml/transform/xmlfiles

Reviewed-by: jpai, joehw

- test/jaxp/javax/xml/jaxp/functional/javax/xml/transform/xmlfiles/lexical.xml
- test/jaxp/javax/xml/jaxp/functional/javax/xml/transform/xmlfiles/out/doctypeGF.out
- test/jaxp/javax/xml/jaxp/functional/javax/xml/transform/xmlfiles/publish2.xml
- test/jaxp/javax/xml/jaxp/functional/org/xml/sax/xmlfiles/out/DTDHandlerGF.out

Changeset: c71be802
Branch: master
Author:    Harshitha Onkar <honkar at openjdk.org>
Date:      2025-08-07 21:19:47 +0000
URL:       https://git.openjdk.org/loom/commit/c71be802b530034169d17325478dba6e2f1c3238

8361748: Enforce limits on the size of an XBM image

Reviewed-by: prr, jdv

! src/java.desktop/share/classes/sun/awt/image/XbmImageDecoder.java
+ test/jdk/java/awt/image/XBMDecoder/XBMDecoderTest.java
+ test/jdk/java/awt/image/XBMDecoder/invalid.xbm
+ test/jdk/java/awt/image/XBMDecoder/invalid_hex.xbm
+ test/jdk/java/awt/image/XBMDecoder/invalid_ht.xbm
+ test/jdk/java/awt/image/XBMDecoder/valid.xbm
+ test/jdk/java/awt/image/XBMDecoder/valid_hex.xbm

Changeset: 4c9eadda
Branch: master
Author:    John Jiang <jjiang at openjdk.org>
Date:      2025-08-08 02:27:30 +0000
URL:       https://git.openjdk.org/loom/commit/4c9eaddaef83c6ba30e27ae3e0d16caeeec206cb

8364597: Replace THL A29 Limited with Tencent

Reviewed-by: jiefu

! src/hotspot/cpu/x86/stubGenerator_x86_64_exp.cpp
! src/hotspot/cpu/x86/stubGenerator_x86_64_log.cpp
! src/hotspot/cpu/x86/stubGenerator_x86_64_pow.cpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.cpp
! src/hotspot/share/gc/shenandoah/shenandoahControlThread.cpp
! src/hotspot/share/gc/shenandoah/shenandoahGenerationalControlThread.cpp
! test/hotspot/jtreg/compiler/arraycopy/TestIllegalArrayCopyBeforeInfiniteLoop.java
! test/hotspot/jtreg/compiler/arraycopy/TestNegArrayLengthAsIndex1.java
! test/hotspot/jtreg/compiler/arraycopy/TestNegArrayLengthAsIndex2.java
! test/hotspot/jtreg/compiler/arraycopy/TestNegativeArrayCopyAfterLoop.java
! test/hotspot/jtreg/compiler/c1/TestRangeCheckEliminated.java
! test/hotspot/jtreg/compiler/c2/TestDuplicateSimpleLoopBackedge.java
! test/hotspot/jtreg/compiler/c2/cr6865031/Test.java
! test/hotspot/jtreg/compiler/c2/irTests/TestAutoVectorization2DArray.java
! test/hotspot/jtreg/compiler/compilercontrol/TestConflictInlineCommands.java
! test/hotspot/jtreg/compiler/debug/TraceIterativeGVN.java
! test/hotspot/jtreg/compiler/intrinsics/math/TestPow0Dot5Opt.java
! test/hotspot/jtreg/compiler/intrinsics/math/TestPow2Opt.java
! test/hotspot/jtreg/compiler/intrinsics/sha/cli/TestUseSHA3IntrinsicsOptionOnSupportedCPU.java
! test/hotspot/jtreg/compiler/intrinsics/sha/cli/TestUseSHA3IntrinsicsOptionOnUnsupportedCPU.java
! test/hotspot/jtreg/compiler/jvmci/errors/TestInvalidTieredStopAtLevel.java
! test/hotspot/jtreg/compiler/loopopts/TestLoopEndNodeEliminate.java
! test/hotspot/jtreg/compiler/loopopts/TestLoopPredicateDep.java
! test/hotspot/jtreg/compiler/loopopts/TestSkeletonPredicateNegation.java
! test/hotspot/jtreg/compiler/oracle/TestInvalidCompileCommand.java
! test/hotspot/jtreg/compiler/print/TestTraceOptoParse.java
! test/hotspot/jtreg/compiler/regalloc/TestGCMRecalcPressureNodes.java
! test/hotspot/jtreg/compiler/unsafe/TestMisalignedUnsafeAccess.java
! test/hotspot/jtreg/compiler/vectorapi/TestIntrinsicBailOut.java
! test/hotspot/jtreg/compiler/vectorapi/TestVectorErgonomics.java
! test/hotspot/jtreg/compiler/vectorapi/VectorReinterpretTest.java
! test/hotspot/jtreg/containers/docker/TestMemoryWithCgroupV1.java
! test/hotspot/jtreg/gc/arguments/TestG1CompressedOops.java
! test/hotspot/jtreg/runtime/cds/appcds/FillerObjectLoadTest.java
! test/jdk/java/lang/Thread/virtual/ParkWithFixedThreadPool.java
! test/jdk/javax/net/ssl/DTLS/DTLSNamedGroups.java
! test/jdk/javax/net/ssl/DTLS/DTLSSignatureSchemes.java
! test/jdk/javax/net/ssl/SSLException/CheckSSLHandshakeException.java
! test/jdk/javax/net/ssl/SSLException/CheckSSLKeyException.java
! test/jdk/javax/net/ssl/SSLException/CheckSSLPeerUnverifiedException.java
! test/jdk/javax/net/ssl/SSLException/CheckSSLProtocolException.java
! test/jdk/javax/net/ssl/SSLParameters/NamedGroups.java
! test/jdk/javax/net/ssl/SSLParameters/NamedGroupsSpec.java
! test/jdk/javax/net/ssl/SSLParameters/SignatureSchemes.java
! test/jdk/javax/net/ssl/ServerName/EndingDotHostname.java
! test/jdk/javax/net/ssl/templates/SSLExampleCert.java
! test/jdk/javax/security/auth/callback/PasswordCallback/CheckCleanerBound.java
! test/jdk/javax/security/auth/callback/PasswordCallback/PasswordCleanup.java
! test/jdk/jdk/internal/platform/docker/GetFreeSwapSpaceSize.java
! test/jdk/jdk/internal/platform/docker/TestGetFreeSwapSpaceSize.java
! test/jdk/sun/security/ec/ECDHKeyAgreementParamValidation.java
! test/jdk/sun/security/jgss/GssContextCleanup.java
! test/jdk/sun/security/jgss/GssNameCleanup.java
! test/jdk/sun/security/ssl/SignatureScheme/SigAlgosExtTestWithTLS12.java
! test/jdk/sun/security/ssl/SignatureScheme/SigAlgosExtTestWithTLS13.java
! test/micro/org/openjdk/bench/java/security/Signatures.java
! test/micro/org/openjdk/bench/vm/compiler/AutoVectorization2DArray.java
! test/micro/org/openjdk/bench/vm/compiler/LoopUnroll.java

Changeset: d0624f8b
Branch: master
Author:    Andrey Turbanov <aturbanov at openjdk.org>
Date:      2025-08-08 05:03:55 +0000
URL:       https://git.openjdk.org/loom/commit/d0624f8b62fe0c70e5b6a47e05235ca65a2e1a13

8364808: Make BasicDesktopPaneUI.Actions.MOVE_RESIZE_INCREMENT static

Reviewed-by: tr, azvegint, kizune, aivanov

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

Changeset: 198782c9
Branch: master
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-08-08 07:54:23 +0000
URL:       https://git.openjdk.org/loom/commit/198782c957c728ed959d1fd31e2c2ff6cd1a9bb5

8364877: G1: Inline G1CollectedHeap::set_region_short_lived_locked

Reviewed-by: ayang, sangheki

! src/hotspot/share/gc/g1/g1CollectedHeap.cpp
! src/hotspot/share/gc/g1/g1CollectedHeap.hpp
! src/hotspot/share/gc/g1/g1EdenRegions.hpp
! src/hotspot/share/gc/g1/g1Policy.hpp

Changeset: bcca5cee
Branch: master
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-08-08 07:56:29 +0000
URL:       https://git.openjdk.org/loom/commit/bcca5cee2d788c745bea55388b2844b395519ed0

8364642: G1: Remove parameter in G1CollectedHeap::abandon_collection_set()

Reviewed-by: ayang

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

Changeset: 47017e38
Branch: master
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-08-08 07:57:06 +0000
URL:       https://git.openjdk.org/loom/commit/47017e38642a58fd6425ec68c1fed96f19f39404

8364760: G1: Remove obsolete code in G1MergeCardSetClosure

Reviewed-by: ayang, sangheki

! src/hotspot/share/gc/g1/g1RemSet.cpp

Changeset: a26a6f31
Branch: master
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-08-08 08:06:56 +0000
URL:       https://git.openjdk.org/loom/commit/a26a6f31524aba61ed83bf3ffdc7713e3e5f5911

8364649: G1: Move collection set related full gc reset code into abandon_collection_set() method

Reviewed-by: ayang, sangheki

! src/hotspot/share/gc/g1/g1CollectedHeap.cpp
! src/hotspot/share/gc/g1/g1FullCollector.cpp
! src/hotspot/share/gc/g1/g1Policy.cpp

Changeset: 1b3e2311
Branch: master
Author:    Afshin Zafari <azafari at openjdk.org>
Date:      2025-08-08 09:06:43 +0000
URL:       https://git.openjdk.org/loom/commit/1b3e23110b2262e470a8c520b977273fd6a9e8d1

8360048: NMT crash in gtest/NMTGtests.java: fatal error: NMT corruption: Block at 0x0000017748307120: header canary broken

Reviewed-by: jsjolen, gziemski

! src/hotspot/share/nmt/memBaseline.cpp
! src/hotspot/share/nmt/memReporter.cpp
! src/hotspot/share/nmt/virtualMemoryTracker.cpp
! src/hotspot/share/nmt/virtualMemoryTracker.hpp
! test/hotspot/gtest/runtime/test_virtualMemoryTracker.cpp

Changeset: 241808e1
Branch: master
Author:    Andrew Dinn <adinn at openjdk.org>
Date:      2025-08-08 09:12:08 +0000
URL:       https://git.openjdk.org/loom/commit/241808e13fb032b0ec192e0b7ff94891a653ac94

8364269: Simplify code cache API by storing adapter entry offsets in blob

Reviewed-by: kvn, shade, asmehra

! src/hotspot/share/code/aotCodeCache.cpp
! src/hotspot/share/code/aotCodeCache.hpp
! src/hotspot/share/code/codeBlob.cpp
! src/hotspot/share/code/codeBlob.hpp
! src/hotspot/share/runtime/sharedRuntime.cpp


From dev at anthonyv.be  Fri Aug  8 14:18:59 2025
From: dev at anthonyv.be (Anthony Vanelverdinghe)
Date: Fri, 8 Aug 2025 16:18:59 +0200
Subject: Feedback: FailedException and Joiner
In-Reply-To: <35b30239-bdbc-472c-b1bd-b5d303e4a7d6@oracle.com>
References: <7fd06513-e690-442f-b8ad-ff3c133eb92b@anthonyv.be>
 <35b30239-bdbc-472c-b1bd-b5d303e4a7d6@oracle.com>
Message-ID: <c6969ef3-8329-43a4-ba51-e3f6fac8349e@anthonyv.be>

On 8/8/2025 2:40 PM, Alan Bateman wrote:
>
> On 08/08/2025 12:56, Anthony Vanelverdinghe wrote:
>> Here's my feedback from upgrading my Loom experiments to JDK 25:
>
> Can you provide a summary of your experiments? The most useful 
> feedback is usually from experiments with real world applications and 
> scenarios so it would be interesting to know more about your usages, a 
> bit on what the subtasks do and what they return (the focus on the 
> latter is to get some sense on whether the subtasks return results of 
> the same types or different types).
>
> -Alan


Sure. It's just a single scenario and not a real-world application 
though: a basic grep. So each subtask is a `Callable<T>` that reads a 
chunk of a file and returns a T (a Boolean to indicate whether the chunk 
contained a match, a Long with the number of matches, a record with the 
lines that matched). And then there's a `Collector` to collect the 
results (OR'ing the Booleans, summing the Longs, returning a 
`Stream<String>`).

Previously I had written a `class DefaultSts extends 
StructuredTaskScope` which had a method `results()` returning a `record 
Results<R, S, U>(Reason reason, R successResult, S failedResult, U 
cancelledResult) {}`. So you'd switch on the `reason` to determine what 
to do (this dates back to JDK 19, hence the `cancelledResult`).

So before I had: `var scope = DefaultSts.of(collector)` and `return 
scope.results()`
And now I have: `var scope = 
StructuredTaskScope.open(Joiners.ofThrowing(collector))` and `return 
scope.join()`
which is the same as: `var scope = 
StructuredTaskScope.open(StructuredTaskScope.Joiner.<T>allSuccessfulOrThrow())` 
and `return scope.join().map(Subtask::get).collect(collector)`

Before I would have an exhaustive switch on `Reason` and thus always be 
reminded to do error handling. As mentioned, I was surprised that my 
code compiled without error handling now.
The actual checked exceptions that get thrown from my subtasks are 
`ExecutionException` and `InterruptedException`, from invoking 
`Future::get` on the result of `AsynchronousFileChannel::read`. So if an 
`IOException` were to occur, it would be at 
`FailedException(ExecutionException(IOException))`.

An issue with the current `join` is also that I typically only want to 
deal with checked exceptions and let unchecked exceptions bubble up. So 
I'd need a utility method and something like `catch(FailedException e) { 
var cause = getCauseAndThrowIfUnchecked(e); ... }`.

While I could still have the `Joiner` return something to switch on, 
analogous to what I did previously, `join` is now designed for failure 
handling, so I'd rather use that mechanism. By having two methods, 
`joinChecked` and `joinUnchecked`, a developer? would be able to 
"assert" whether their subtasks throw checked exceptions.

Kind regards, Anthony


From duke at openjdk.org  Sat Aug  9 08:56:24 2025
From: duke at openjdk.org (duke)
Date: Sat, 9 Aug 2025 08:56:24 GMT
Subject: git: openjdk/loom: fibers: 4 new changesets
Message-ID: <6e1bb78a-3bdd-4ca9-be32-5ae7830473ab@openjdk.org>

Changeset: 1c706dd3
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-09 09:50:56 +0000
URL:       https://git.openjdk.org/loom/commit/1c706dd3321879a8f345b0c404657651ff145575

Temporarily exclude build/translations/VerifyTranslations.java

! test/jdk/ProblemList.txt

Changeset: 0d81757d
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-09 09:54:14 +0000
URL:       https://git.openjdk.org/loom/commit/0d81757dbe688788f3711b7aa331306bc92b33e8

Add /timeout due to large number of iterations

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

Changeset: c9b2cd4e
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-09 09:54:41 +0000
URL:       https://git.openjdk.org/loom/commit/c9b2cd4e3f96e420bf1514a6f51633689b7dc5fc

poll_remove failing

! src/java.base/linux/classes/sun/nio/ch/IoUringPoller.java
! src/java.base/linux/classes/sun/nio/ch/iouring/IoUring.java

Changeset: c6da0415
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-09 09:54:57 +0000
URL:       https://git.openjdk.org/loom/commit/c6da04153bb026a0befb1a728836c452cf983dec

Don't shutdown custom scheduler

! test/jdk/java/nio/channels/vthread/BlockingChannelOps.java


From duke at openjdk.org  Sun Aug 10 05:23:26 2025
From: duke at openjdk.org (duke)
Date: Sun, 10 Aug 2025 05:23:26 GMT
Subject: git: openjdk/loom: fibers: 9 new changesets
Message-ID: <39010f70-abb7-439b-a7cc-6763e0c50f3f@openjdk.org>

Changeset: cd50d78d
Branch: fibers
Author:    Chen Liang <liach at openjdk.org>
Date:      2025-08-08 17:17:21 +0000
URL:       https://git.openjdk.org/loom/commit/cd50d78d447f9f39065bc844fb3041cba2db32db

8361300: Document exceptions for Unsafe offset methods

Reviewed-by: jrose, vyazici

! src/hotspot/share/prims/unsafe.cpp
! src/java.base/share/classes/java/util/concurrent/atomic/AtomicIntegerFieldUpdater.java
! src/java.base/share/classes/java/util/concurrent/atomic/AtomicLongFieldUpdater.java
! src/java.base/share/classes/java/util/concurrent/atomic/AtomicReferenceFieldUpdater.java
! src/java.base/share/classes/jdk/internal/misc/Unsafe.java
! test/jdk/java/util/concurrent/tck/AtomicIntegerFieldUpdaterTest.java
! test/jdk/java/util/concurrent/tck/AtomicLongFieldUpdaterTest.java
! test/jdk/java/util/concurrent/tck/AtomicReferenceFieldUpdaterTest.java
+ test/jdk/jdk/internal/misc/Unsafe/AddressComputationContractTest.java

Changeset: c1c01556
Branch: fibers
Author:    Alexey Semenyuk <asemenyuk at openjdk.org>
Date:      2025-08-08 21:41:44 +0000
URL:       https://git.openjdk.org/loom/commit/c1c0155604cbb6c42a220d391a88b029776bdb95

8364129: Rename libwixhelper

Reviewed-by: erikj, almatvee

! make/modules/jdk.jpackage/Lib.gmk
! src/jdk.jpackage/windows/classes/jdk/jpackage/internal/WixUiFragmentBuilder.java
! src/jdk.jpackage/windows/classes/jdk/jpackage/internal/resources/main.wxs
= src/jdk.jpackage/windows/native/libmsica/Version.cpp
= src/jdk.jpackage/windows/native/libmsica/Version.h
= src/jdk.jpackage/windows/native/libmsica/libmsica.cpp
! test/jdk/tools/jpackage/windows/WinLongVersionTest.java

Changeset: 8ad1fcc4
Branch: fibers
Author:    Alexey Semenyuk <asemenyuk at openjdk.org>
Date:      2025-08-08 22:11:52 +0000
URL:       https://git.openjdk.org/loom/commit/8ad1fcc48a4ba49ffde6dfbb851dbb3f56077dec

8364564: Shortcut configuration is not recorded in .jpackage.xml file

Reviewed-by: almatvee

! src/jdk.jpackage/linux/classes/jdk/jpackage/internal/DesktopIntegration.java
! src/jdk.jpackage/linux/classes/jdk/jpackage/internal/LinuxFromParams.java
! src/jdk.jpackage/linux/classes/jdk/jpackage/internal/model/LinuxLauncher.java
! src/jdk.jpackage/linux/classes/jdk/jpackage/internal/model/LinuxLauncherMixin.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/AddLauncherArguments.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/FromParams.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/StandardBundlerParam.java
+ src/jdk.jpackage/share/classes/jdk/jpackage/internal/model/LauncherShortcut.java
+ src/jdk.jpackage/share/classes/jdk/jpackage/internal/model/LauncherShortcutStartupDirectory.java
! src/jdk.jpackage/windows/classes/jdk/jpackage/internal/WinFromParams.java
! src/jdk.jpackage/windows/classes/jdk/jpackage/internal/WixAppImageFragmentBuilder.java
! src/jdk.jpackage/windows/classes/jdk/jpackage/internal/model/WinLauncher.java
! src/jdk.jpackage/windows/classes/jdk/jpackage/internal/model/WinLauncherMixin.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LauncherShortcut.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LauncherVerifier.java

Changeset: f83454cd
Branch: fibers
Author:    Jaikiran Pai <jpai at openjdk.org>
Date:      2025-08-09 02:00:58 +0000
URL:       https://git.openjdk.org/loom/commit/f83454cd61538b653656ccf81759b3cc7286ed67

8364786: Test java/net/vthread/HttpALot.java intermittently fails - 24999 handled, expected 25000

Reviewed-by: dfuchs, alanb, vyazici

! test/jdk/java/net/vthread/HttpALot.java

Changeset: d5f59581
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-09 16:16:52 +0000
URL:       https://git.openjdk.org/loom/commit/d5f5958116c08bf3e600f3f9076c398def68fa14

Merge branch 'master' into fibers


Changeset: 8c2d94e1
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-09 16:17:41 +0000
URL:       https://git.openjdk.org/loom/commit/8c2d94e1fe9e82369dc6ad63966c6693904df913

Release resources if init fails

! src/java.base/linux/classes/sun/nio/ch/EPollPoller.java
! src/java.base/linux/classes/sun/nio/ch/IoUringPoller.java
! src/java.base/linux/classes/sun/nio/ch/iouring/IoUring.java
! src/java.base/macosx/classes/sun/nio/ch/KQueuePoller.java
! src/java.base/windows/classes/sun/nio/ch/WEPollPoller.java

Changeset: b2e890bf
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-09 16:17:54 +0000
URL:       https://git.openjdk.org/loom/commit/b2e890bf6704ba82f19a5e284852b4afd01bacb6

Update SelectorOps to use new poller mode

! test/jdk/java/nio/channels/vthread/BlockingChannelOps.java
! test/jdk/java/nio/channels/vthread/SelectorOps.java

Changeset: 86222660
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-09 16:18:04 +0000
URL:       https://git.openjdk.org/loom/commit/86222660504ff0adbb5cbfde75771333321d0931

Merge loom into fibers


Changeset: fa1938da
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-09 16:23:03 +0000
URL:       https://git.openjdk.org/loom/commit/fa1938daadd4b327f39b8cba8338fd663f5c15b9

Update BlockingSocketOps to test new poller mode

! test/jdk/java/net/vthread/BlockingSocketOps.java


From duke at openjdk.org  Sun Aug 10 05:23:39 2025
From: duke at openjdk.org (duke)
Date: Sun, 10 Aug 2025 05:23:39 GMT
Subject: git: openjdk/loom: master: 4 new changesets
Message-ID: <f5a116c8-8f15-429c-a8c4-08a64baee392@openjdk.org>

Changeset: cd50d78d
Branch: master
Author:    Chen Liang <liach at openjdk.org>
Date:      2025-08-08 17:17:21 +0000
URL:       https://git.openjdk.org/loom/commit/cd50d78d447f9f39065bc844fb3041cba2db32db

8361300: Document exceptions for Unsafe offset methods

Reviewed-by: jrose, vyazici

! src/hotspot/share/prims/unsafe.cpp
! src/java.base/share/classes/java/util/concurrent/atomic/AtomicIntegerFieldUpdater.java
! src/java.base/share/classes/java/util/concurrent/atomic/AtomicLongFieldUpdater.java
! src/java.base/share/classes/java/util/concurrent/atomic/AtomicReferenceFieldUpdater.java
! src/java.base/share/classes/jdk/internal/misc/Unsafe.java
! test/jdk/java/util/concurrent/tck/AtomicIntegerFieldUpdaterTest.java
! test/jdk/java/util/concurrent/tck/AtomicLongFieldUpdaterTest.java
! test/jdk/java/util/concurrent/tck/AtomicReferenceFieldUpdaterTest.java
+ test/jdk/jdk/internal/misc/Unsafe/AddressComputationContractTest.java

Changeset: c1c01556
Branch: master
Author:    Alexey Semenyuk <asemenyuk at openjdk.org>
Date:      2025-08-08 21:41:44 +0000
URL:       https://git.openjdk.org/loom/commit/c1c0155604cbb6c42a220d391a88b029776bdb95

8364129: Rename libwixhelper

Reviewed-by: erikj, almatvee

! make/modules/jdk.jpackage/Lib.gmk
! src/jdk.jpackage/windows/classes/jdk/jpackage/internal/WixUiFragmentBuilder.java
! src/jdk.jpackage/windows/classes/jdk/jpackage/internal/resources/main.wxs
= src/jdk.jpackage/windows/native/libmsica/Version.cpp
= src/jdk.jpackage/windows/native/libmsica/Version.h
= src/jdk.jpackage/windows/native/libmsica/libmsica.cpp
! test/jdk/tools/jpackage/windows/WinLongVersionTest.java

Changeset: 8ad1fcc4
Branch: master
Author:    Alexey Semenyuk <asemenyuk at openjdk.org>
Date:      2025-08-08 22:11:52 +0000
URL:       https://git.openjdk.org/loom/commit/8ad1fcc48a4ba49ffde6dfbb851dbb3f56077dec

8364564: Shortcut configuration is not recorded in .jpackage.xml file

Reviewed-by: almatvee

! src/jdk.jpackage/linux/classes/jdk/jpackage/internal/DesktopIntegration.java
! src/jdk.jpackage/linux/classes/jdk/jpackage/internal/LinuxFromParams.java
! src/jdk.jpackage/linux/classes/jdk/jpackage/internal/model/LinuxLauncher.java
! src/jdk.jpackage/linux/classes/jdk/jpackage/internal/model/LinuxLauncherMixin.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/AddLauncherArguments.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/FromParams.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/StandardBundlerParam.java
+ src/jdk.jpackage/share/classes/jdk/jpackage/internal/model/LauncherShortcut.java
+ src/jdk.jpackage/share/classes/jdk/jpackage/internal/model/LauncherShortcutStartupDirectory.java
! src/jdk.jpackage/windows/classes/jdk/jpackage/internal/WinFromParams.java
! src/jdk.jpackage/windows/classes/jdk/jpackage/internal/WixAppImageFragmentBuilder.java
! src/jdk.jpackage/windows/classes/jdk/jpackage/internal/model/WinLauncher.java
! src/jdk.jpackage/windows/classes/jdk/jpackage/internal/model/WinLauncherMixin.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LauncherShortcut.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LauncherVerifier.java

Changeset: f83454cd
Branch: master
Author:    Jaikiran Pai <jpai at openjdk.org>
Date:      2025-08-09 02:00:58 +0000
URL:       https://git.openjdk.org/loom/commit/f83454cd61538b653656ccf81759b3cc7286ed67

8364786: Test java/net/vthread/HttpALot.java intermittently fails - 24999 handled, expected 25000

Reviewed-by: dfuchs, alanb, vyazici

! test/jdk/java/net/vthread/HttpALot.java


From duke at openjdk.org  Tue Aug 12 09:58:46 2025
From: duke at openjdk.org (duke)
Date: Tue, 12 Aug 2025 09:58:46 GMT
Subject: git: openjdk/loom: fibers: 28 new changesets
Message-ID: <14af938e-8f14-41b8-9392-be491c4ce5f5@openjdk.org>

Changeset: e13b4c8d
Branch: fibers
Author:    Chen Liang <liach at openjdk.org>
Date:      2025-08-09 23:44:21 +0000
URL:       https://git.openjdk.org/loom/commit/e13b4c8de944ab14a1d12f6251e83f4fdd9e0198

8358535: Changes in ClassValue (JDK-8351996) caused a 1-9% regression in Renaissance-PageRank

Reviewed-by: jrose, shade

! src/java.base/share/classes/java/lang/ClassValue.java
! test/jdk/java/lang/invoke/ClassValueTest.java

Changeset: 022e29a7
Branch: fibers
Author:    Jaikiran Pai <jpai at openjdk.org>
Date:      2025-08-10 04:22:10 +0000
URL:       https://git.openjdk.org/loom/commit/022e29a77533aacabd56820d00ecffa9646a8362

8365086: CookieStore.getURIs() and get(URI) should return an immutable List

Reviewed-by: liach, vyazici, dfuchs

! src/java.base/share/classes/java/net/InMemoryCookieStore.java
+ test/jdk/java/net/CookieStoreTest.java

Changeset: 15e8609a
Branch: fibers
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2025-08-11 07:08:03 +0000
URL:       https://git.openjdk.org/loom/commit/15e8609a2c3d246e89cfb349cbd21777bc471bae

8364996: java/awt/font/FontNames/LocaleFamilyNames.java times out on Windows

Reviewed-by: clanger, prr, asteiner

! test/jdk/java/awt/font/FontNames/LocaleFamilyNames.java

Changeset: c31f4861
Branch: fibers
Author:    Volkan Yazici <vyazici at openjdk.org>
Date:      2025-08-11 07:10:38 +0000
URL:       https://git.openjdk.org/loom/commit/c31f4861fb6c85c31348ac3e99ccf754d9ee1a60

8364365: HKSCS encoder does not properly set the replacement character

Reviewed-by: sherman

! src/java.base/share/classes/sun/nio/cs/HKSCS.java
+ test/jdk/sun/nio/cs/TestEncoderReplaceLatin1.java
+ test/jdk/sun/nio/cs/TestEncoderReplaceUTF16.java

Changeset: f28126eb
Branch: fibers
Author:    Joel Sikstr?m <jsikstro at openjdk.org>
Date:      2025-08-11 08:18:28 +0000
URL:       https://git.openjdk.org/loom/commit/f28126ebc2f792f0d64bbe6e841d9fafb433b7ea

8365050: Too verbose warning in os::commit_memory_limit() on Windows

Reviewed-by: dholmes, mbaesken

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

Changeset: 10762d40
Branch: fibers
Author:    Dmitry Cherepanov <dcherepanov at openjdk.org>
Date:      2025-08-11 08:19:02 +0000
URL:       https://git.openjdk.org/loom/commit/10762d408bba9ce0945100847a8674e7eb7fa75e

8365044: Missing copyright header in Contextual.java

Reviewed-by: egahlin

! src/jdk.jfr/share/classes/jdk/jfr/Contextual.java

Changeset: 0c39228e
Branch: fibers
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-11 09:42:12 +0000
URL:       https://git.openjdk.org/loom/commit/0c39228ec1c8c6eadafb54567c94ad5f19f27f7a

8364767: G1: Remove use of CollectedHeap::_soft_ref_policy

Reviewed-by: tschatzl, sangheki

! src/hotspot/share/gc/g1/g1CollectedHeap.cpp
! src/hotspot/share/gc/g1/g1FullGCScope.cpp
! src/hotspot/share/gc/g1/g1FullGCScope.hpp
! src/hotspot/share/gc/g1/g1VMOperations.cpp
! src/hotspot/share/gc/shared/softRefPolicy.hpp
! src/hotspot/share/prims/whitebox.cpp

Changeset: 1fc0b016
Branch: fibers
Author:    Magnus Ihse Bursie <ihse at openjdk.org>
Date:      2025-08-11 09:44:49 +0000
URL:       https://git.openjdk.org/loom/commit/1fc0b01601af454a0e871afce8ae0c9da1358f13

8361142: Improve custom hooks for makefiles

Reviewed-by: erikj

! make/CompileJavaModules.gmk
! make/CreateJmods.gmk
! make/Images.gmk
! make/Main.gmk
! make/MainSupport.gmk
! make/ModuleWrapper.gmk
! make/common/JavaCompilation.gmk
! make/common/Modules.gmk

Changeset: 8b5bb013
Branch: fibers
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2025-08-11 10:28:59 +0000
URL:       https://git.openjdk.org/loom/commit/8b5bb013557478c9ceb49f94f22600d5901f4eee

8364987: javac fails with an exception when looking for diamond creation

Reviewed-by: vromero

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Analyzer.java
! test/langtools/tools/javac/analyzer/Diamond.java

Changeset: fd766b27
Branch: fibers
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-11 10:49:47 +0000
URL:       https://git.openjdk.org/loom/commit/fd766b27b9f862075a415780901c242a7d48c26f

8364541: Parallel: Support allocation in old generation when heap is almost full

Reviewed-by: phh, tschatzl

! src/hotspot/share/gc/parallel/parallelScavengeHeap.cpp

Changeset: a60e523f
Branch: fibers
Author:    Beno?t Maillard <bmaillard at openjdk.org>
Committer: Damon Fenacci <dfenacci at openjdk.org>
Date:      2025-08-11 11:15:34 +0000
URL:       https://git.openjdk.org/loom/commit/a60e523f88e7022abe80725b82a8b16a87a377e2

8349191: Test compiler/ciReplay/TestIncrementalInlining.java failed

Reviewed-by: mhaessig, dfenacci, chagedorn

! src/hotspot/share/opto/printinlining.cpp
! test/hotspot/jtreg/ProblemList.txt

Changeset: 43cfd80c
Branch: fibers
Author:    Darragh Clarke <dclarke at openjdk.org>
Date:      2025-08-11 11:57:08 +0000
URL:       https://git.openjdk.org/loom/commit/43cfd80c1c0493f2f50ffd75461ca75a002e0127

8352502: Response message is null if expect 100 assertion fails with non 100

Reviewed-by: dfuchs

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

Changeset: 0ad919c1
Branch: fibers
Author:    Casper Norrbin <cnorrbin at openjdk.org>
Date:      2025-08-11 12:22:52 +0000
URL:       https://git.openjdk.org/loom/commit/0ad919c1e54895b000b58f6a1b54d79f76970845

8352067: Remove the NMT treap and replace its uses with the utilities red-black tree

Reviewed-by: jsjolen, ayang

! src/hotspot/share/nmt/memoryFileTracker.cpp
- src/hotspot/share/nmt/nmtTreap.hpp
! src/hotspot/share/nmt/regionsTree.cpp
! src/hotspot/share/nmt/regionsTree.hpp
! src/hotspot/share/nmt/regionsTree.inline.hpp
! src/hotspot/share/nmt/vmatree.cpp
! src/hotspot/share/nmt/vmatree.hpp
! src/hotspot/share/opto/printinlining.cpp
! src/hotspot/share/opto/printinlining.hpp
! src/hotspot/share/utilities/rbTree.hpp
! src/hotspot/share/utilities/rbTree.inline.hpp
- test/hotspot/gtest/nmt/test_nmt_treap.cpp
! test/hotspot/gtest/nmt/test_vmatree.cpp
! test/hotspot/gtest/utilities/test_rbtree.cpp

Changeset: 23985c29
Branch: fibers
Author:    Magnus Ihse Bursie <ihse at openjdk.org>
Date:      2025-08-11 14:12:55 +0000
URL:       https://git.openjdk.org/loom/commit/23985c29b44b489472dcd3aad2cb98d9ce003a7b

8357979: Compile jdk.internal.vm.ci targeting the Boot JDK version

Reviewed-by: erikj, dnsimon

! make/CompileJavaModules.gmk
! make/autoconf/boot-jdk.m4
! make/autoconf/spec.gmk.template
! make/common/JavaCompilation.gmk
! make/modules/jdk.internal.vm.ci/Java.gmk

Changeset: bdb1646a
Branch: fibers
Author:    Thomas Stuefe <stuefe at openjdk.org>
Date:      2025-08-11 15:37:31 +0000
URL:       https://git.openjdk.org/loom/commit/bdb1646a1e39bae0535efe3f593e7fc0545e4114

8364611: (process) Child process SIGPIPE signal disposition should be default

Reviewed-by: erikj, rriggs

! make/test/JtregNativeJdk.gmk
! src/java.base/unix/native/libjava/childproc.c
+ test/jdk/java/lang/ProcessBuilder/childSignalDisposition/TestChildSignalDisposition.java
+ test/jdk/java/lang/ProcessBuilder/childSignalDisposition/exePrintSignalDisposition.c
+ test/jdk/java/lang/ProcessBuilder/childSignalDisposition/libChangeSignalDisposition.c

Changeset: e9e331b2
Branch: fibers
Author:    Francesco Andreuzzi <andreuzzi.francesco at gmail.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2025-08-11 17:10:10 +0000
URL:       https://git.openjdk.org/loom/commit/e9e331b2a957180dac2e9ce19a58d0a57d2f5dae

8365238: 'jfr' feature requires 'services' with 'custom' build variant

Reviewed-by: erikj, shade, ihse

! make/autoconf/jvm-features.m4

Changeset: 958383d6
Branch: fibers
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-11 18:49:37 +0000
URL:       https://git.openjdk.org/loom/commit/958383d69c8742fdb78c28ad856559367c3513d7

8364501: Compiler shutdown crashes on access to deleted CompileTask

Reviewed-by: kvn, mhaessig

! src/hotspot/share/compiler/compileBroker.cpp
! src/hotspot/share/compiler/compileTask.cpp
! src/hotspot/share/compiler/compileTask.hpp

Changeset: 8cd79752
Branch: fibers
Author:    Brian Burkhalter <bpb at openjdk.org>
Date:      2025-08-11 18:50:39 +0000
URL:       https://git.openjdk.org/loom/commit/8cd79752c6426780c6772eafe296aa5b713b2b64

8364761: (aio) AsynchronousChannelGroup.execute doesn't check null command

Reviewed-by: alanb, vyazici

! src/java.base/share/classes/sun/nio/ch/AsynchronousChannelGroupImpl.java
! test/jdk/java/nio/channels/AsynchronousChannelGroup/AsExecutor.java

Changeset: 9593730a
Branch: fibers
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2025-08-11 23:45:24 +0000
URL:       https://git.openjdk.org/loom/commit/9593730a23f465d26ba7b310d5b0c5d3b4ee4326

8362376: Use @Stable annotation in Java FDLIBM implementation

Reviewed-by: liach, rgiulietti

! src/java.base/share/classes/java/lang/FdLibm.java
! test/jdk/java/lang/StrictMath/ExpTests.java
! test/jdk/java/lang/StrictMath/PowTests.java

Changeset: 6927fc39
Branch: fibers
Author:    Dingli Zhang <dzhang at openjdk.org>
Committer: Feilong Jiang <fjiang at openjdk.org>
Date:      2025-08-12 01:25:35 +0000
URL:       https://git.openjdk.org/loom/commit/6927fc3904eb239bd43ab7c581d479c00a6a4af2

8365200: RISC-V: compiler/loopopts/superword/TestGeneralizedReductions.java fails with Zvbb and vlen=128

Reviewed-by: fyang, fjiang

! test/hotspot/jtreg/compiler/loopopts/superword/TestGeneralizedReductions.java

Changeset: 72d3a2a9
Branch: fibers
Author:    Alexey Semenyuk <asemenyuk at openjdk.org>
Date:      2025-08-12 03:15:49 +0000
URL:       https://git.openjdk.org/loom/commit/72d3a2a9773b2a3fe0351e0acb7b10c0751d23d8

8308349: missing working directory option for launcher when invoked from shortcuts

Reviewed-by: almatvee

! src/jdk.jpackage/linux/classes/jdk/jpackage/internal/DesktopIntegration.java
! src/jdk.jpackage/linux/classes/jdk/jpackage/internal/LinuxFromParams.java
! src/jdk.jpackage/linux/classes/jdk/jpackage/internal/resources/template.desktop
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/Arguments.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/FromParams.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/model/LauncherShortcutStartupDirectory.java
+ src/jdk.jpackage/share/classes/jdk/jpackage/internal/model/ParseUtils.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/resources/MainResources.properties
! src/jdk.jpackage/windows/classes/jdk/jpackage/internal/WinFromParams.java
! src/jdk.jpackage/windows/classes/jdk/jpackage/internal/WixAppImageFragmentBuilder.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/AdditionalLauncher.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LauncherShortcut.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LinuxHelper.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/WinShortcutVerifier.java
! test/jdk/tools/jpackage/share/AddLShortcutTest.java
! test/jdk/tools/jpackage/share/ErrorTest.java

Changeset: d78fa5a9
Branch: fibers
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2025-08-12 07:16:57 +0000
URL:       https://git.openjdk.org/loom/commit/d78fa5a9f6254e2e93e75c693efba75e09736749

8365240: [asan] exclude some tests when using asan enabled binaries

Reviewed-by: lmesnik, sspitsyn

! test/hotspot/jtreg/vmTestbase/nsk/jvmti/Allocate/alloc001/alloc001.java
! test/jdk/tools/launcher/TooSmallStackSize.java

Changeset: 96067816
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-12 08:29:23 +0000
URL:       https://git.openjdk.org/loom/commit/96067816e6bb8328789c3f126d9cec79bfcac19b

Merge branch 'master' into fibers

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

Changeset: 76c1dacc
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-11 09:37:50 +0000
URL:       https://git.openjdk.org/loom/commit/76c1dacce619cf825256fc92838280b81c333ed1

Cleaner only needed for subpollers

! src/java.base/linux/classes/sun/nio/ch/EPollPoller.java
! src/java.base/macosx/classes/sun/nio/ch/KQueuePoller.java

Changeset: b1b38491
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-11 09:38:09 +0000
URL:       https://git.openjdk.org/loom/commit/b1b384919d79745b72d13656c9f52488355bee7b

Change io_uring poller to use low-level API

! src/java.base/linux/classes/sun/nio/ch/IoUringPoller.java
! src/java.base/linux/classes/sun/nio/ch/iouring/IOUringImpl.java
- src/java.base/linux/classes/sun/nio/ch/iouring/IoUring.java

Changeset: 5c35a615
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-11 10:28:29 +0000
URL:       https://git.openjdk.org/loom/commit/5c35a6153d623dcb2515932f00be850f17008836

Fix pollSelector

! src/java.base/share/classes/sun/nio/ch/Poller.java

Changeset: ca124e85
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-12 08:30:36 +0000
URL:       https://git.openjdk.org/loom/commit/ca124e85b20f8c73af2f6fc63f6f4d72ed04448b

Merge loom into fibers


Changeset: 5383a85b
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-12 08:59:42 +0000
URL:       https://git.openjdk.org/loom/commit/5383a85bdef3098bc76db3f757ac1aa60a2db98b

Fix comment

! src/java.base/linux/classes/sun/nio/ch/IoUringPoller.java


From duke at openjdk.org  Tue Aug 12 10:00:00 2025
From: duke at openjdk.org (duke)
Date: Tue, 12 Aug 2025 10:00:00 GMT
Subject: git: openjdk/loom: master: 22 new changesets
Message-ID: <7ebbd306-81cc-425c-9c55-218f3836001d@openjdk.org>

Changeset: e13b4c8d
Branch: master
Author:    Chen Liang <liach at openjdk.org>
Date:      2025-08-09 23:44:21 +0000
URL:       https://git.openjdk.org/loom/commit/e13b4c8de944ab14a1d12f6251e83f4fdd9e0198

8358535: Changes in ClassValue (JDK-8351996) caused a 1-9% regression in Renaissance-PageRank

Reviewed-by: jrose, shade

! src/java.base/share/classes/java/lang/ClassValue.java
! test/jdk/java/lang/invoke/ClassValueTest.java

Changeset: 022e29a7
Branch: master
Author:    Jaikiran Pai <jpai at openjdk.org>
Date:      2025-08-10 04:22:10 +0000
URL:       https://git.openjdk.org/loom/commit/022e29a77533aacabd56820d00ecffa9646a8362

8365086: CookieStore.getURIs() and get(URI) should return an immutable List

Reviewed-by: liach, vyazici, dfuchs

! src/java.base/share/classes/java/net/InMemoryCookieStore.java
+ test/jdk/java/net/CookieStoreTest.java

Changeset: 15e8609a
Branch: master
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2025-08-11 07:08:03 +0000
URL:       https://git.openjdk.org/loom/commit/15e8609a2c3d246e89cfb349cbd21777bc471bae

8364996: java/awt/font/FontNames/LocaleFamilyNames.java times out on Windows

Reviewed-by: clanger, prr, asteiner

! test/jdk/java/awt/font/FontNames/LocaleFamilyNames.java

Changeset: c31f4861
Branch: master
Author:    Volkan Yazici <vyazici at openjdk.org>
Date:      2025-08-11 07:10:38 +0000
URL:       https://git.openjdk.org/loom/commit/c31f4861fb6c85c31348ac3e99ccf754d9ee1a60

8364365: HKSCS encoder does not properly set the replacement character

Reviewed-by: sherman

! src/java.base/share/classes/sun/nio/cs/HKSCS.java
+ test/jdk/sun/nio/cs/TestEncoderReplaceLatin1.java
+ test/jdk/sun/nio/cs/TestEncoderReplaceUTF16.java

Changeset: f28126eb
Branch: master
Author:    Joel Sikstr?m <jsikstro at openjdk.org>
Date:      2025-08-11 08:18:28 +0000
URL:       https://git.openjdk.org/loom/commit/f28126ebc2f792f0d64bbe6e841d9fafb433b7ea

8365050: Too verbose warning in os::commit_memory_limit() on Windows

Reviewed-by: dholmes, mbaesken

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

Changeset: 10762d40
Branch: master
Author:    Dmitry Cherepanov <dcherepanov at openjdk.org>
Date:      2025-08-11 08:19:02 +0000
URL:       https://git.openjdk.org/loom/commit/10762d408bba9ce0945100847a8674e7eb7fa75e

8365044: Missing copyright header in Contextual.java

Reviewed-by: egahlin

! src/jdk.jfr/share/classes/jdk/jfr/Contextual.java

Changeset: 0c39228e
Branch: master
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-11 09:42:12 +0000
URL:       https://git.openjdk.org/loom/commit/0c39228ec1c8c6eadafb54567c94ad5f19f27f7a

8364767: G1: Remove use of CollectedHeap::_soft_ref_policy

Reviewed-by: tschatzl, sangheki

! src/hotspot/share/gc/g1/g1CollectedHeap.cpp
! src/hotspot/share/gc/g1/g1FullGCScope.cpp
! src/hotspot/share/gc/g1/g1FullGCScope.hpp
! src/hotspot/share/gc/g1/g1VMOperations.cpp
! src/hotspot/share/gc/shared/softRefPolicy.hpp
! src/hotspot/share/prims/whitebox.cpp

Changeset: 1fc0b016
Branch: master
Author:    Magnus Ihse Bursie <ihse at openjdk.org>
Date:      2025-08-11 09:44:49 +0000
URL:       https://git.openjdk.org/loom/commit/1fc0b01601af454a0e871afce8ae0c9da1358f13

8361142: Improve custom hooks for makefiles

Reviewed-by: erikj

! make/CompileJavaModules.gmk
! make/CreateJmods.gmk
! make/Images.gmk
! make/Main.gmk
! make/MainSupport.gmk
! make/ModuleWrapper.gmk
! make/common/JavaCompilation.gmk
! make/common/Modules.gmk

Changeset: 8b5bb013
Branch: master
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2025-08-11 10:28:59 +0000
URL:       https://git.openjdk.org/loom/commit/8b5bb013557478c9ceb49f94f22600d5901f4eee

8364987: javac fails with an exception when looking for diamond creation

Reviewed-by: vromero

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Analyzer.java
! test/langtools/tools/javac/analyzer/Diamond.java

Changeset: fd766b27
Branch: master
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-11 10:49:47 +0000
URL:       https://git.openjdk.org/loom/commit/fd766b27b9f862075a415780901c242a7d48c26f

8364541: Parallel: Support allocation in old generation when heap is almost full

Reviewed-by: phh, tschatzl

! src/hotspot/share/gc/parallel/parallelScavengeHeap.cpp

Changeset: a60e523f
Branch: master
Author:    Beno?t Maillard <bmaillard at openjdk.org>
Committer: Damon Fenacci <dfenacci at openjdk.org>
Date:      2025-08-11 11:15:34 +0000
URL:       https://git.openjdk.org/loom/commit/a60e523f88e7022abe80725b82a8b16a87a377e2

8349191: Test compiler/ciReplay/TestIncrementalInlining.java failed

Reviewed-by: mhaessig, dfenacci, chagedorn

! src/hotspot/share/opto/printinlining.cpp
! test/hotspot/jtreg/ProblemList.txt

Changeset: 43cfd80c
Branch: master
Author:    Darragh Clarke <dclarke at openjdk.org>
Date:      2025-08-11 11:57:08 +0000
URL:       https://git.openjdk.org/loom/commit/43cfd80c1c0493f2f50ffd75461ca75a002e0127

8352502: Response message is null if expect 100 assertion fails with non 100

Reviewed-by: dfuchs

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

Changeset: 0ad919c1
Branch: master
Author:    Casper Norrbin <cnorrbin at openjdk.org>
Date:      2025-08-11 12:22:52 +0000
URL:       https://git.openjdk.org/loom/commit/0ad919c1e54895b000b58f6a1b54d79f76970845

8352067: Remove the NMT treap and replace its uses with the utilities red-black tree

Reviewed-by: jsjolen, ayang

! src/hotspot/share/nmt/memoryFileTracker.cpp
- src/hotspot/share/nmt/nmtTreap.hpp
! src/hotspot/share/nmt/regionsTree.cpp
! src/hotspot/share/nmt/regionsTree.hpp
! src/hotspot/share/nmt/regionsTree.inline.hpp
! src/hotspot/share/nmt/vmatree.cpp
! src/hotspot/share/nmt/vmatree.hpp
! src/hotspot/share/opto/printinlining.cpp
! src/hotspot/share/opto/printinlining.hpp
! src/hotspot/share/utilities/rbTree.hpp
! src/hotspot/share/utilities/rbTree.inline.hpp
- test/hotspot/gtest/nmt/test_nmt_treap.cpp
! test/hotspot/gtest/nmt/test_vmatree.cpp
! test/hotspot/gtest/utilities/test_rbtree.cpp

Changeset: 23985c29
Branch: master
Author:    Magnus Ihse Bursie <ihse at openjdk.org>
Date:      2025-08-11 14:12:55 +0000
URL:       https://git.openjdk.org/loom/commit/23985c29b44b489472dcd3aad2cb98d9ce003a7b

8357979: Compile jdk.internal.vm.ci targeting the Boot JDK version

Reviewed-by: erikj, dnsimon

! make/CompileJavaModules.gmk
! make/autoconf/boot-jdk.m4
! make/autoconf/spec.gmk.template
! make/common/JavaCompilation.gmk
! make/modules/jdk.internal.vm.ci/Java.gmk

Changeset: bdb1646a
Branch: master
Author:    Thomas Stuefe <stuefe at openjdk.org>
Date:      2025-08-11 15:37:31 +0000
URL:       https://git.openjdk.org/loom/commit/bdb1646a1e39bae0535efe3f593e7fc0545e4114

8364611: (process) Child process SIGPIPE signal disposition should be default

Reviewed-by: erikj, rriggs

! make/test/JtregNativeJdk.gmk
! src/java.base/unix/native/libjava/childproc.c
+ test/jdk/java/lang/ProcessBuilder/childSignalDisposition/TestChildSignalDisposition.java
+ test/jdk/java/lang/ProcessBuilder/childSignalDisposition/exePrintSignalDisposition.c
+ test/jdk/java/lang/ProcessBuilder/childSignalDisposition/libChangeSignalDisposition.c

Changeset: e9e331b2
Branch: master
Author:    Francesco Andreuzzi <andreuzzi.francesco at gmail.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2025-08-11 17:10:10 +0000
URL:       https://git.openjdk.org/loom/commit/e9e331b2a957180dac2e9ce19a58d0a57d2f5dae

8365238: 'jfr' feature requires 'services' with 'custom' build variant

Reviewed-by: erikj, shade, ihse

! make/autoconf/jvm-features.m4

Changeset: 958383d6
Branch: master
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-11 18:49:37 +0000
URL:       https://git.openjdk.org/loom/commit/958383d69c8742fdb78c28ad856559367c3513d7

8364501: Compiler shutdown crashes on access to deleted CompileTask

Reviewed-by: kvn, mhaessig

! src/hotspot/share/compiler/compileBroker.cpp
! src/hotspot/share/compiler/compileTask.cpp
! src/hotspot/share/compiler/compileTask.hpp

Changeset: 8cd79752
Branch: master
Author:    Brian Burkhalter <bpb at openjdk.org>
Date:      2025-08-11 18:50:39 +0000
URL:       https://git.openjdk.org/loom/commit/8cd79752c6426780c6772eafe296aa5b713b2b64

8364761: (aio) AsynchronousChannelGroup.execute doesn't check null command

Reviewed-by: alanb, vyazici

! src/java.base/share/classes/sun/nio/ch/AsynchronousChannelGroupImpl.java
! test/jdk/java/nio/channels/AsynchronousChannelGroup/AsExecutor.java

Changeset: 9593730a
Branch: master
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2025-08-11 23:45:24 +0000
URL:       https://git.openjdk.org/loom/commit/9593730a23f465d26ba7b310d5b0c5d3b4ee4326

8362376: Use @Stable annotation in Java FDLIBM implementation

Reviewed-by: liach, rgiulietti

! src/java.base/share/classes/java/lang/FdLibm.java
! test/jdk/java/lang/StrictMath/ExpTests.java
! test/jdk/java/lang/StrictMath/PowTests.java

Changeset: 6927fc39
Branch: master
Author:    Dingli Zhang <dzhang at openjdk.org>
Committer: Feilong Jiang <fjiang at openjdk.org>
Date:      2025-08-12 01:25:35 +0000
URL:       https://git.openjdk.org/loom/commit/6927fc3904eb239bd43ab7c581d479c00a6a4af2

8365200: RISC-V: compiler/loopopts/superword/TestGeneralizedReductions.java fails with Zvbb and vlen=128

Reviewed-by: fyang, fjiang

! test/hotspot/jtreg/compiler/loopopts/superword/TestGeneralizedReductions.java

Changeset: 72d3a2a9
Branch: master
Author:    Alexey Semenyuk <asemenyuk at openjdk.org>
Date:      2025-08-12 03:15:49 +0000
URL:       https://git.openjdk.org/loom/commit/72d3a2a9773b2a3fe0351e0acb7b10c0751d23d8

8308349: missing working directory option for launcher when invoked from shortcuts

Reviewed-by: almatvee

! src/jdk.jpackage/linux/classes/jdk/jpackage/internal/DesktopIntegration.java
! src/jdk.jpackage/linux/classes/jdk/jpackage/internal/LinuxFromParams.java
! src/jdk.jpackage/linux/classes/jdk/jpackage/internal/resources/template.desktop
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/Arguments.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/FromParams.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/model/LauncherShortcutStartupDirectory.java
+ src/jdk.jpackage/share/classes/jdk/jpackage/internal/model/ParseUtils.java
! src/jdk.jpackage/share/classes/jdk/jpackage/internal/resources/MainResources.properties
! src/jdk.jpackage/windows/classes/jdk/jpackage/internal/WinFromParams.java
! src/jdk.jpackage/windows/classes/jdk/jpackage/internal/WixAppImageFragmentBuilder.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/AdditionalLauncher.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LauncherShortcut.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LinuxHelper.java
! test/jdk/tools/jpackage/helpers/jdk/jpackage/test/WinShortcutVerifier.java
! test/jdk/tools/jpackage/share/AddLShortcutTest.java
! test/jdk/tools/jpackage/share/ErrorTest.java

Changeset: d78fa5a9
Branch: master
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2025-08-12 07:16:57 +0000
URL:       https://git.openjdk.org/loom/commit/d78fa5a9f6254e2e93e75c693efba75e09736749

8365240: [asan] exclude some tests when using asan enabled binaries

Reviewed-by: lmesnik, sspitsyn

! test/hotspot/jtreg/vmTestbase/nsk/jvmti/Allocate/alloc001/alloc001.java
! test/jdk/tools/launcher/TooSmallStackSize.java


From cay.horstmann at gmail.com  Tue Aug 12 15:27:35 2025
From: cay.horstmann at gmail.com (Cay Horstmann)
Date: Tue, 12 Aug 2025 18:27:35 +0300
Subject: "pinned" terminology
Message-ID: <be0b26ac-0479-4a90-a3a3-7e882c7edeae@gmail.com>

I was asked when specifically a thread is pinned/unpinned. Following https://openjdk.org/jeps/444#Pinning, I had assumed that a thread is pinned when it calls a foreign/native method, or prior to JEP 491, when it enters a synchronized block/method.

On the other hand, there is this sentence in JEP 491: "In particular, if a virtual thread calls native code, either through a native method or the Foreign Function & Memory API, and that native code calls back to Java code that performs a blocking operation or blocks on a monitor, then the virtual thread *will be pinned*."

In the JEP 444 sense, it would have already been pinned when calling the native code, but it seems that in the JEP 491 sense, that only happens upon performing a blocking operation in the callback.

I know the JEPs are not authoritative, but I could find no definition for pinning in the API docs or language spec. And I know it's just terminology--the pinning only matters when performing a blocking operation.

Still, it would be nice to have a consistent terminology. Any suggestions?
  
Cheers,

Cay

-- 

Cay S. Horstmann | https://horstmann.com


From alan.bateman at oracle.com  Wed Aug 13 13:13:58 2025
From: alan.bateman at oracle.com (Alan Bateman)
Date: Wed, 13 Aug 2025 14:13:58 +0100
Subject: "pinned" terminology
In-Reply-To: <be0b26ac-0479-4a90-a3a3-7e882c7edeae@gmail.com>
References: <be0b26ac-0479-4a90-a3a3-7e882c7edeae@gmail.com>
Message-ID: <aae7a61d-fc71-45cb-8463-f68896ca5c4e@oracle.com>

On 12/08/2025 16:27, Cay Horstmann wrote:
> I was asked when specifically a thread is pinned/unpinned. Following 
> https://openjdk.org/jeps/444#Pinning, I had assumed that a thread is 
> pinned when it calls a foreign/native method, or prior to JEP 491, 
> when it enters a synchronized block/method.
>
> On the other hand, there is this sentence in JEP 491: "In particular, 
> if a virtual thread calls native code, either through a native method 
> or the Foreign Function & Memory API, and that native code calls back 
> to Java code that performs a blocking operation or blocks on a 
> monitor, then the virtual thread *will be pinned*."
>
> In the JEP 444 sense, it would have already been pinned when calling 
> the native code, but it seems that in the JEP 491 sense, that only 
> happens upon performing a blocking operation in the callback.

A virtual thread is pinned to its carrier when executing native code or 
when calling through native code (and back to Java). The limitations 
listed in JEP 444 includes the case where a virtual thread is executing 
native code. JEP 444 doesn't go into the scenario of a virtual threads 
calling through native code (so native frames on the stack) and attempts 
to block. The cited text in JEP 491 is from the section on diagnosing 
further cases of pinning and I think is okay.

-Alan



From duke at openjdk.org  Fri Aug 15 04:46:29 2025
From: duke at openjdk.org (duke)
Date: Fri, 15 Aug 2025 04:46:29 GMT
Subject: git: openjdk/loom: fibers: 38 new changesets
Message-ID: <769080d0-ad16-499b-8585-9ec483812992@openjdk.org>

Changeset: db12f193
Branch: fibers
Author:    Afshin Zafari <azafari at openjdk.org>
Date:      2025-08-12 08:03:18 +0000
URL:       https://git.openjdk.org/loom/commit/db12f1934a659843d9cc77f4f21e67ebf9fa94e6

8364280: NMTCommittedVirtualMemoryTracker.test_committed_virtualmemory_region_vm fails with assertion "negative distance"

Reviewed-by: gziemski, jsjolen

! test/hotspot/gtest/runtime/test_committed_virtualmemory.cpp

Changeset: 5a442197
Branch: fibers
Author:    Johny Jose <johny.jose at oracle.com>
Committer: Sean Coffey <coffeys at openjdk.org>
Date:      2025-08-12 08:26:42 +0000
URL:       https://git.openjdk.org/loom/commit/5a442197d21e1dfb89cdbf5f0ad5596869ab333a

7191877: TEST_BUG: java/rmi/transport/checkLeaseInfoLeak/CheckLeaseLeak.java failing intermittently

Reviewed-by: smarks, coffeys

! test/jdk/ProblemList.txt
! test/jdk/java/rmi/transport/checkLeaseInfoLeak/CheckLeaseLeak.java
! test/jdk/java/rmi/transport/checkLeaseInfoLeak/LeaseLeakClient.java

Changeset: b81f4fae
Branch: fibers
Author:    David Beaumont <david.beaumont at oracle.com>
Committer: Jaikiran Pai <jpai at openjdk.org>
Date:      2025-08-12 08:34:26 +0000
URL:       https://git.openjdk.org/loom/commit/b81f4faed7180e51aa966a9bf2f84ba755c6736d

8360037: Refactor ImageReader in preparation for Valhalla support

Reviewed-by: alanb, rriggs, jpai

! src/java.base/share/classes/jdk/internal/jimage/ImageReader.java
! src/java.base/share/classes/jdk/internal/jrtfs/ExplodedImage.java
! src/java.base/share/classes/jdk/internal/jrtfs/JrtFileAttributes.java
! src/java.base/share/classes/jdk/internal/jrtfs/JrtFileSystem.java
! src/java.base/share/classes/jdk/internal/jrtfs/SystemImage.java
! src/java.base/share/classes/jdk/internal/module/SystemModuleFinders.java
+ test/jdk/jdk/internal/jimage/ImageReaderTest.java
! test/jdk/jdk/internal/jimage/JImageReadTest.java
! test/jdk/tools/jimage/ImageReaderDuplicateChildNodesTest.java
! test/micro/org/openjdk/bench/jdk/internal/jrtfs/ImageReaderBenchmark.java

Changeset: f155f7d6
Branch: fibers
Author:    Fredrik Bredberg <fbredberg at openjdk.org>
Date:      2025-08-12 08:45:02 +0000
URL:       https://git.openjdk.org/loom/commit/f155f7d6e50c702f65858774cfd02ef60aa9cad5

8364141: Remove LockingMode related code from x86

Reviewed-by: aboldtch, dholmes, coleenp

! src/hotspot/cpu/x86/c1_LIRAssembler_x86.cpp
! src/hotspot/cpu/x86/c1_LIRGenerator_x86.cpp
! src/hotspot/cpu/x86/c1_MacroAssembler_x86.cpp
! src/hotspot/cpu/x86/c2_MacroAssembler_x86.cpp
! src/hotspot/cpu/x86/c2_MacroAssembler_x86.hpp
! src/hotspot/cpu/x86/interp_masm_x86.cpp
! src/hotspot/cpu/x86/sharedRuntime_x86.cpp
! src/hotspot/cpu/x86/sharedRuntime_x86_64.cpp
! src/hotspot/cpu/x86/templateInterpreterGenerator_x86.cpp
! src/hotspot/cpu/x86/x86_64.ad

Changeset: 3c0eed8e
Branch: fibers
Author:    Fredrik Bredberg <fbredberg at openjdk.org>
Date:      2025-08-12 08:45:36 +0000
URL:       https://git.openjdk.org/loom/commit/3c0eed8e476e4da540e4ea44ee966f278e04a067

8364406: Remove LockingMode related code from aarch64

Reviewed-by: aph, dholmes

! src/hotspot/cpu/aarch64/aarch64.ad
! src/hotspot/cpu/aarch64/c1_LIRAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/c1_MacroAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/c2_MacroAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/c2_MacroAssembler_aarch64.hpp
! src/hotspot/cpu/aarch64/interp_masm_aarch64.cpp
! src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/sharedRuntime_aarch64.cpp
! src/hotspot/cpu/aarch64/templateInterpreterGenerator_aarch64.cpp

Changeset: 16e461ef
Branch: fibers
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-08-12 08:52:37 +0000
URL:       https://git.openjdk.org/loom/commit/16e461ef31628ab47cd8484cdfc970c0008b97ba

8365122: G1: Minor clean up of G1SurvivorRegions

Reviewed-by: sangheki, kbarrett

! src/hotspot/share/gc/g1/g1Policy.cpp
! src/hotspot/share/gc/g1/g1SurvivorRegions.cpp
! src/hotspot/share/gc/g1/g1SurvivorRegions.hpp

Changeset: 95b7a8b3
Branch: fibers
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-12 11:29:43 +0000
URL:       https://git.openjdk.org/loom/commit/95b7a8b3e300bf40a2a5bdf8ca8310485db363e6

8365237: Remove unused SoftRefPolicy::_all_soft_refs_clear

Reviewed-by: tschatzl, kbarrett

! src/hotspot/share/gc/shared/gcVMOperations.cpp
! src/hotspot/share/gc/shared/gcVMOperations.hpp
! src/hotspot/share/gc/shared/softRefPolicy.hpp

Changeset: 19a76a45
Branch: fibers
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-12 11:58:37 +0000
URL:       https://git.openjdk.org/loom/commit/19a76a45e9c8616414830c865801660bc6761e92

8365316: Remove unnecessary default arg value in gcVMOperations

Reviewed-by: tschatzl

! src/hotspot/share/gc/shared/gcVMOperations.hpp

Changeset: 391ea151
Branch: fibers
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2025-08-12 13:16:54 +0000
URL:       https://git.openjdk.org/loom/commit/391ea151184c5621f263742605416c3ccd2c3d73

8365307: AIX make fails after JDK-8364611

Reviewed-by: clanger, asteiner

! test/jdk/java/lang/ProcessBuilder/childSignalDisposition/exePrintSignalDisposition.c

Changeset: a382996b
Branch: fibers
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-12 13:42:53 +0000
URL:       https://git.openjdk.org/loom/commit/a382996bb496d50b4eb5a6be9f61e5c2f8aaae2d

8364993: JFR: Disable jdk.ModuleExport in default.jfc

Reviewed-by: mgronlun

! src/jdk.jfr/share/conf/jfr/default.jfc

Changeset: ad0fd13f
Branch: fibers
Author:    Ioi Lam <iklam at openjdk.org>
Date:      2025-08-12 16:20:00 +0000
URL:       https://git.openjdk.org/loom/commit/ad0fd13f2007c93d8a109626a627823f30e4c8d7

8364454: ProblemList runtime/cds/DeterministicDump.java on macos for JDK-8363986

Reviewed-by: ccheung

! test/hotspot/jtreg/ProblemList.txt

Changeset: 4c03e593
Branch: fibers
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2025-08-12 16:30:09 +0000
URL:       https://git.openjdk.org/loom/commit/4c03e5938df0a9cb10c2379af81163795dd3a086

8364750: Remove unused declaration in jvm.h

Reviewed-by: shade

! src/hotspot/share/include/jvm.h

Changeset: d0239826
Branch: fibers
Author:    Brian Burkhalter <bpb at openjdk.org>
Date:      2025-08-12 17:39:14 +0000
URL:       https://git.openjdk.org/loom/commit/d023982600f8bb19053f579710953aa29e0f30c5

8361209: (bf) Use CharSequence::getChars for StringCharBuffer bulk get methods

Reviewed-by: rriggs, alanb

! src/java.base/share/classes/java/nio/StringCharBuffer.java
! src/java.base/share/classes/java/nio/X-Buffer.java.template
+ test/micro/org/openjdk/bench/java/nio/StringCharBufferBulkTransfer.java

Changeset: 87d73401
Branch: fibers
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-12 17:44:34 +0000
URL:       https://git.openjdk.org/loom/commit/87d734012e3130501bfd37b23cee7f5e0a3a476f

8364756: JFR: Improve slow tests

Reviewed-by: mgronlun

! test/jdk/jdk/jfr/api/consumer/streaming/TestFilledChunks.java
! test/jdk/jdk/jfr/api/consumer/streaming/TestStartMultiChunk.java
! test/jdk/jdk/jfr/event/runtime/StressJavaMonitorEvents.java
! test/jdk/jdk/jfr/jmx/streaming/TestMaxSize.java
! test/jdk/jdk/jfr/jmx/streaming/TestRemoteDump.java
! test/jdk/jdk/jfr/jvm/TestWaste.java
! test/jdk/jdk/jfr/startupargs/TestMultipleStartupRecordings.java

Changeset: 636c61a3
Branch: fibers
Author:    Dingli Zhang <dzhang at openjdk.org>
Committer: Fei Yang <fyang at openjdk.org>
Date:      2025-08-13 01:24:39 +0000
URL:       https://git.openjdk.org/loom/commit/636c61a3868d9c01b672b3b45cda1e476acdc045

8365302: RISC-V: compiler/loopopts/superword/TestAlignVector.java fails when vlen=128

Reviewed-by: fyang, fjiang

! test/hotspot/jtreg/compiler/loopopts/superword/TestAlignVector.java

Changeset: 25480f00
Branch: fibers
Author:    Ramkumar Sunderbabu <rsunderbabu at openjdk.org>
Committer: Leonid Mesnik <lmesnik at openjdk.org>
Date:      2025-08-13 01:45:49 +0000
URL:       https://git.openjdk.org/loom/commit/25480f0011297ad209eca1b1b56bcf983ea4ee5d

8365184: sun/tools/jhsdb/HeapDumpTestWithActiveProcess.java Re-enable SerialGC flag on debuggee process

Reviewed-by: lmesnik, cjplummer, sspitsyn

! test/jdk/sun/tools/jhsdb/JShellHeapDumpTest.java

Changeset: 72e22b4d
Branch: fibers
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2025-08-13 08:07:45 +0000
URL:       https://git.openjdk.org/loom/commit/72e22b4de59a18f83c75be9a51fd99726f77f6f6

8362885: A more formal way to mark javac's Flags that belong to a specific Symbol type only

Reviewed-by: ihse, liach, vromero, mcimadamore, erikj

! make/ToolsLangtools.gmk
+ make/langtools/tools/flagsgenerator/FlagsGenerator.java
! make/langtools/tools/propertiesparser/parser/MessageType.java
! make/modules/jdk.compiler/Gensrc.gmk
! src/jdk.compiler/share/classes/com/sun/tools/javac/code/Flags.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Modules.java
! test/langtools/tools/javac/diags/ArgTypeCompilerFactory.java
! test/langtools/tools/javac/flags/FlagsTest.java

Changeset: e77cdd93
Branch: fibers
Author:    Fredrik Bredberg <fbredberg at openjdk.org>
Date:      2025-08-13 08:47:08 +0000
URL:       https://git.openjdk.org/loom/commit/e77cdd93ead5601fea4bb1bf1847835e1097b851

8364570: Remove LockingMode related code from riscv64

Reviewed-by: fyang, fjiang

! src/hotspot/cpu/riscv/c1_LIRAssembler_riscv.cpp
! src/hotspot/cpu/riscv/c1_MacroAssembler_riscv.cpp
! src/hotspot/cpu/riscv/c2_MacroAssembler_riscv.cpp
! src/hotspot/cpu/riscv/c2_MacroAssembler_riscv.hpp
! src/hotspot/cpu/riscv/interp_masm_riscv.cpp
! src/hotspot/cpu/riscv/macroAssembler_riscv.cpp
! src/hotspot/cpu/riscv/riscv.ad
! src/hotspot/cpu/riscv/sharedRuntime_riscv.cpp
! src/hotspot/cpu/riscv/templateInterpreterGenerator_riscv.cpp

Changeset: f3b34d32
Branch: fibers
Author:    Guanqiang Han <ghan at openjdk.org>
Committer: Tobias Hartmann <thartmann at openjdk.org>
Date:      2025-08-13 10:52:54 +0000
URL:       https://git.openjdk.org/loom/commit/f3b34d32d6ea409f8c8f0382e8f01e746366f842

8359235: C1 compilation fails with "assert(is_single_stack() && !is_virtual()) failed: type check"

Reviewed-by: thartmann, dlong

! src/hotspot/cpu/aarch64/c1_LIRAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/c1_LIRGenerator_aarch64.cpp
! src/hotspot/cpu/riscv/c1_LIRAssembler_riscv.cpp
! src/hotspot/cpu/riscv/c1_LIRGenerator_riscv.cpp
! src/hotspot/cpu/x86/c1_LIRGenerator_x86.cpp
+ test/hotspot/jtreg/compiler/intrinsics/TestStack2RegSlotMismatch.java

Changeset: 001aaa1e
Branch: fibers
Author:    Boris Ulasevich <bulasevich at openjdk.org>
Date:      2025-08-13 12:45:48 +0000
URL:       https://git.openjdk.org/loom/commit/001aaa1e49f2692061cad44d68c9e81a27ea3b98

8365166: ARM32: missing os::fetch_bcp_from_context implementation

Reviewed-by: shade

! src/hotspot/os_cpu/linux_arm/os_linux_arm.cpp

Changeset: 899e13f4
Branch: fibers
Author:    Nikita Gubarkov <ngubarkov at openjdk.org>
Committer: Laurent Bourg?s <lbourges at openjdk.org>
Date:      2025-08-13 17:36:07 +0000
URL:       https://git.openjdk.org/loom/commit/899e13f40a70c98d1d393ba6c3973abcb36e1f00

8364434: Inconsistent BufferedContext state after GC

Reviewed-by: jdv, azvegint, avu

! src/java.desktop/share/classes/sun/java2d/pipe/BufferedContext.java
+ test/jdk/java/awt/ColorClass/WeakColorTest.java

Changeset: 38a26141
Branch: fibers
Author:    Srinivas Vamsi Parasa <sparasa at openjdk.org>
Committer: Sandhya Viswanathan <sviswanathan at openjdk.org>
Date:      2025-08-13 17:53:05 +0000
URL:       https://git.openjdk.org/loom/commit/38a261415dc29aae01c9b878d94cb302c60a3983

8365265: x86 short forward jump exceeds 8-bit offset in methodHandles_x86.cpp when using Intel APX

Reviewed-by: shade, jbhateja, aph

! src/hotspot/cpu/x86/methodHandles_x86.cpp

Changeset: ecbdd340
Branch: fibers
Author:    Alex Menkov <amenkov at openjdk.org>
Date:      2025-08-13 18:24:56 +0000
URL:       https://git.openjdk.org/loom/commit/ecbdd3405a1d46f555deb82098e1865b44601a1f

8361103: java_lang_Thread::async_get_stack_trace does not properly protect JavaThread

Reviewed-by: sspitsyn, dholmes

! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/javaClasses.hpp
! src/hotspot/share/prims/jvm.cpp

Changeset: 4680dc98
Branch: fibers
Author:    Johan Sj?len <jsjolen at openjdk.org>
Date:      2025-08-13 18:41:57 +0000
URL:       https://git.openjdk.org/loom/commit/4680dc983169d48fcf83eb50dc60e32e79d5d976

8365264: Rename ResourceHashtable to HashTable

Reviewed-by: iklam, ayang

! src/hotspot/share/asm/codeBuffer.hpp
! src/hotspot/share/cds/aotArtifactFinder.cpp
! src/hotspot/share/cds/aotClassLinker.hpp
! src/hotspot/share/cds/aotConstantPoolResolver.hpp
! src/hotspot/share/cds/aotReferenceObjSupport.cpp
! src/hotspot/share/cds/archiveBuilder.hpp
! src/hotspot/share/cds/archiveHeapLoader.cpp
! src/hotspot/share/cds/archiveHeapWriter.cpp
! src/hotspot/share/cds/archiveHeapWriter.hpp
! src/hotspot/share/cds/cdsHeapVerifier.hpp
! src/hotspot/share/cds/classListParser.hpp
! src/hotspot/share/cds/classListWriter.cpp
! src/hotspot/share/cds/dumpTimeClassInfo.hpp
! src/hotspot/share/cds/heapShared.cpp
! src/hotspot/share/cds/heapShared.hpp
! src/hotspot/share/cds/lambdaProxyClassDictionary.hpp
! src/hotspot/share/cds/metaspaceShared.cpp
! src/hotspot/share/cds/regeneratedClasses.cpp
! src/hotspot/share/classfile/bytecodeAssembler.hpp
! src/hotspot/share/classfile/classFileParser.cpp
! src/hotspot/share/classfile/classLoaderStats.hpp
! src/hotspot/share/classfile/loaderConstraints.cpp
! src/hotspot/share/classfile/moduleEntry.cpp
! src/hotspot/share/classfile/moduleEntry.hpp
! src/hotspot/share/classfile/packageEntry.cpp
! src/hotspot/share/classfile/packageEntry.hpp
! src/hotspot/share/classfile/placeholders.cpp
! src/hotspot/share/classfile/resolutionErrors.cpp
! src/hotspot/share/classfile/stringTable.cpp
! src/hotspot/share/classfile/systemDictionary.cpp
! src/hotspot/share/classfile/systemDictionaryShared.cpp
! src/hotspot/share/classfile/verifier.hpp
! src/hotspot/share/code/codeCache.cpp
! src/hotspot/share/code/nmethod.cpp
! src/hotspot/share/compiler/disassembler.cpp
! src/hotspot/share/gc/z/zVerify.cpp
! src/hotspot/share/jfr/support/methodtracer/jfrClassFilterClosure.cpp
! src/hotspot/share/jfr/support/methodtracer/jfrClassFilterClosure.hpp
! src/hotspot/share/jfr/support/methodtracer/jfrMethodTracer.cpp
! src/hotspot/share/jfr/utilities/jfrSet.hpp
! src/hotspot/share/jvmci/jvmciCompilerToVMInit.cpp
! src/hotspot/share/logging/logAsyncWriter.hpp
! src/hotspot/share/memory/metaspaceClosure.hpp
! src/hotspot/share/nmt/nativeCallStackPrinter.hpp
! src/hotspot/share/oops/constantPool.hpp
! src/hotspot/share/oops/instanceKlass.cpp
! src/hotspot/share/oops/trainingData.hpp
! src/hotspot/share/opto/compile.cpp
! src/hotspot/share/opto/loopnode.hpp
! src/hotspot/share/opto/mempointer.cpp
! src/hotspot/share/opto/node.hpp
! src/hotspot/share/opto/superwordVTransformBuilder.hpp
! src/hotspot/share/prims/foreignGlobals.cpp
! src/hotspot/share/prims/jvmtiTagMapTable.hpp
! src/hotspot/share/runtime/arguments.hpp
! src/hotspot/share/runtime/sharedRuntime.cpp
! src/hotspot/share/runtime/synchronizer.hpp
! src/hotspot/share/runtime/threadSMR.cpp
! src/hotspot/share/runtime/vmOperations.cpp
! src/hotspot/share/services/heapDumper.cpp
! src/hotspot/share/utilities/globalDefinitions.hpp
+ src/hotspot/share/utilities/hashTable.hpp
! src/hotspot/share/utilities/nativeCallStack.hpp
! src/hotspot/share/utilities/objectBitSet.hpp
! src/hotspot/share/utilities/objectBitSet.inline.hpp
+ src/hotspot/share/utilities/resizableHashTable.hpp
- src/hotspot/share/utilities/resizeableResourceHash.hpp
- src/hotspot/share/utilities/resourceHash.hpp
! test/hotspot/gtest/runtime/test_os_reserve_between.cpp
+ test/hotspot/gtest/utilities/test_hashtable.cpp
- test/hotspot/gtest/utilities/test_resourceHash.cpp

Changeset: 96603200
Branch: fibers
Author:    Justin Lu <jlu at openjdk.org>
Date:      2025-08-13 20:43:46 +0000
URL:       https://git.openjdk.org/loom/commit/9660320041d0ba0f22ebe074a64472557b85a24c

8364781: Re-examine DigitList digits resizing during parsing

Reviewed-by: liach, naoto

! src/java.base/share/classes/java/text/DigitList.java

Changeset: 9c266ae8
Branch: fibers
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-13 20:49:16 +0000
URL:       https://git.openjdk.org/loom/commit/9c266ae83c047025d778da41e413701ac3b50b03

8365229: ARM32: c2i_no_clinit_check_entry assert failed after JDK-8364269

Reviewed-by: kvn, adinn, bulasevich, phh

! src/hotspot/cpu/zero/sharedRuntime_zero.cpp
! src/hotspot/share/code/codeBlob.cpp
! src/hotspot/share/runtime/sharedRuntime.cpp

Changeset: 9dcc502c
Branch: fibers
Author:    Prasanta Sadhukhan <psadhukhan at openjdk.org>
Date:      2025-08-14 04:55:02 +0000
URL:       https://git.openjdk.org/loom/commit/9dcc502cc83773561707f2afe9aee1f9e2386b9e

8365375: Method SU3.setAcceleratorSelectionForeground assigns to acceleratorForeground

Reviewed-by: aivanov, prr, kizune

! src/java.desktop/share/classes/com/sun/java/swing/SwingUtilities3.java

Changeset: c22e01d7
Branch: fibers
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2025-08-14 07:02:08 +0000
URL:       https://git.openjdk.org/loom/commit/c22e01d77648036db4ed640521e82c49f8791ca1

8341342: Elements.getAllModuleElements() does not work properly before JavacTask.analyze()

Reviewed-by: vromero, liach

! src/jdk.compiler/share/classes/com/sun/tools/javac/model/JavacElements.java
! test/jdk/tools/sincechecker/SinceChecker.java
+ test/langtools/tools/javac/processing/model/util/elements/TestElementsProgrammatic.java

Changeset: a6be2286
Branch: fibers
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2025-08-14 07:04:40 +0000
URL:       https://git.openjdk.org/loom/commit/a6be2286421e069a292c749eecd6bdc38a8deaf2

8365314: javac fails with an exception for erroneous source

Reviewed-by: vromero

! src/jdk.compiler/share/classes/com/sun/tools/javac/code/Lint.java
! test/langtools/tools/javac/recovery/AnnotationRecovery.java

Changeset: 3e329850
Branch: fibers
Author:    Joel Sikstr?m <jsikstro at openjdk.org>
Date:      2025-08-14 07:37:10 +0000
URL:       https://git.openjdk.org/loom/commit/3e3298509f136583b18e5ab8bf75a8b012016f16

8365317: ZGC: Setting ZYoungGCThreads lower than ZOldGCThreads may result in a crash

Reviewed-by: tschatzl, eosterlund

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

Changeset: e3201628
Branch: fibers
Author:    Yudi Zheng <yzheng at openjdk.org>
Date:      2025-08-14 07:39:49 +0000
URL:       https://git.openjdk.org/loom/commit/e320162815d529bc65cd058b34ec39d60d032ce7

8365218: [JVMCI] AArch64 CPU features are not computed correctly after 8364128

Reviewed-by: dnsimon

! src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/hotspot/HotSpotJVMCIBackendFactory.java
! src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/hotspot/aarch64/AArch64HotSpotJVMCIBackendFactory.java
! src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/hotspot/amd64/AMD64HotSpotJVMCIBackendFactory.java
! src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/hotspot/riscv64/RISCV64HotSpotJVMCIBackendFactory.java

Changeset: 7698c373
Branch: fibers
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-14 10:43:21 +0000
URL:       https://git.openjdk.org/loom/commit/7698c373a684235812c9dc11edd751059f9e8e81

8364556: JFR:  Disable SymbolTableStatistics and StringTableStatistics in default.jfc

Reviewed-by: mgronlun

! src/jdk.jfr/share/conf/jfr/default.jfc

Changeset: 98f54d90
Branch: fibers
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2025-08-14 11:11:47 +0000
URL:       https://git.openjdk.org/loom/commit/98f54d90ea56f63c2fc5137af98b57dbc90fe150

8365487: [asan] some oops (mode) related tests fail

Reviewed-by: kbarrett, syan

! test/hotspot/jtreg/runtime/CompressedOops/UseCompressedOops.java
! test/jdk/jdk/jfr/event/gc/configuration/TestGCHeapConfigurationEventWith32BitOops.java
! test/jdk/jdk/jfr/event/gc/configuration/TestGCHeapConfigurationEventWithZeroBasedOops.java

Changeset: 41520998
Branch: fibers
Author:    Roman Marchenko <rmarchenko at openjdk.org>
Committer: Magnus Ihse Bursie <ihse at openjdk.org>
Date:      2025-08-14 12:31:20 +0000
URL:       https://git.openjdk.org/loom/commit/41520998aa8808452ee384b213b2a77c7bad668d

8365098: make/RunTests.gmk generates a wrong path to test artifacts on Alpine

Reviewed-by: erikj, ihse

! make/RunTests.gmk

Changeset: dd113c8d
Branch: fibers
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-14 14:50:56 +0000
URL:       https://git.openjdk.org/loom/commit/dd113c8df06cc7e1465fb3dfef2e9b2a5a99f1fb

8364628: Serial: Refactor SerialHeap::mem_allocate_work

Reviewed-by: phh, kbarrett

! src/hotspot/share/gc/serial/serialHeap.cpp
! src/hotspot/share/gc/serial/serialHeap.hpp
! src/hotspot/share/gc/serial/tenuredGeneration.hpp
! src/hotspot/share/gc/serial/tenuredGeneration.inline.hpp

Changeset: 304aab6d
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-14 16:28:10 +0000
URL:       https://git.openjdk.org/loom/commit/304aab6d4f1ec8d8a88a1f1d38766f90acbe7840

Merge branch 'master' into fibers

! src/hotspot/cpu/aarch64/interp_masm_aarch64.cpp
! src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/sharedRuntime_aarch64.cpp
! src/hotspot/cpu/riscv/sharedRuntime_riscv.cpp
! src/hotspot/cpu/x86/interp_masm_x86.cpp
! src/hotspot/cpu/x86/sharedRuntime_x86_64.cpp
! src/hotspot/share/cds/heapShared.cpp
! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/javaClasses.hpp
! src/hotspot/share/include/jvm.h
! src/hotspot/share/oops/instanceKlass.cpp
! src/hotspot/share/prims/jvm.cpp
! src/hotspot/share/runtime/sharedRuntime.cpp
! src/hotspot/share/runtime/synchronizer.hpp
! test/hotspot/jtreg/ProblemList.txt
! test/jdk/ProblemList.txt
! src/hotspot/cpu/aarch64/interp_masm_aarch64.cpp
! src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/sharedRuntime_aarch64.cpp
! src/hotspot/cpu/riscv/sharedRuntime_riscv.cpp
! src/hotspot/cpu/x86/interp_masm_x86.cpp
! src/hotspot/cpu/x86/sharedRuntime_x86_64.cpp
! src/hotspot/share/cds/heapShared.cpp
! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/javaClasses.hpp
! src/hotspot/share/include/jvm.h
! src/hotspot/share/oops/instanceKlass.cpp
! src/hotspot/share/prims/jvm.cpp
! src/hotspot/share/runtime/sharedRuntime.cpp
! src/hotspot/share/runtime/synchronizer.hpp
! test/hotspot/jtreg/ProblemList.txt
! test/jdk/ProblemList.txt

Changeset: 8b14f08b
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-13 08:53:49 +0000
URL:       https://git.openjdk.org/loom/commit/8b14f08bc3bc43c52d2e03c14f27278e5512bd03

Allow flags be set

! src/java.base/linux/classes/sun/nio/ch/IoUringPoller.java
! src/java.base/linux/classes/sun/nio/ch/iouring/IOUringImpl.java

Changeset: ddddfaa6
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-14 16:29:00 +0000
URL:       https://git.openjdk.org/loom/commit/ddddfaa6873bf11ad1100cde8955ef3aea12572b

Merge loom into fibers



From duke at openjdk.org  Fri Aug 15 04:48:26 2025
From: duke at openjdk.org (duke)
Date: Fri, 15 Aug 2025 04:48:26 GMT
Subject: git: openjdk/loom: master: 35 new changesets
Message-ID: <cf624053-5cdb-4f0c-a5e4-aa01d7245d94@openjdk.org>

Changeset: db12f193
Branch: master
Author:    Afshin Zafari <azafari at openjdk.org>
Date:      2025-08-12 08:03:18 +0000
URL:       https://git.openjdk.org/loom/commit/db12f1934a659843d9cc77f4f21e67ebf9fa94e6

8364280: NMTCommittedVirtualMemoryTracker.test_committed_virtualmemory_region_vm fails with assertion "negative distance"

Reviewed-by: gziemski, jsjolen

! test/hotspot/gtest/runtime/test_committed_virtualmemory.cpp

Changeset: 5a442197
Branch: master
Author:    Johny Jose <johny.jose at oracle.com>
Committer: Sean Coffey <coffeys at openjdk.org>
Date:      2025-08-12 08:26:42 +0000
URL:       https://git.openjdk.org/loom/commit/5a442197d21e1dfb89cdbf5f0ad5596869ab333a

7191877: TEST_BUG: java/rmi/transport/checkLeaseInfoLeak/CheckLeaseLeak.java failing intermittently

Reviewed-by: smarks, coffeys

! test/jdk/ProblemList.txt
! test/jdk/java/rmi/transport/checkLeaseInfoLeak/CheckLeaseLeak.java
! test/jdk/java/rmi/transport/checkLeaseInfoLeak/LeaseLeakClient.java

Changeset: b81f4fae
Branch: master
Author:    David Beaumont <david.beaumont at oracle.com>
Committer: Jaikiran Pai <jpai at openjdk.org>
Date:      2025-08-12 08:34:26 +0000
URL:       https://git.openjdk.org/loom/commit/b81f4faed7180e51aa966a9bf2f84ba755c6736d

8360037: Refactor ImageReader in preparation for Valhalla support

Reviewed-by: alanb, rriggs, jpai

! src/java.base/share/classes/jdk/internal/jimage/ImageReader.java
! src/java.base/share/classes/jdk/internal/jrtfs/ExplodedImage.java
! src/java.base/share/classes/jdk/internal/jrtfs/JrtFileAttributes.java
! src/java.base/share/classes/jdk/internal/jrtfs/JrtFileSystem.java
! src/java.base/share/classes/jdk/internal/jrtfs/SystemImage.java
! src/java.base/share/classes/jdk/internal/module/SystemModuleFinders.java
+ test/jdk/jdk/internal/jimage/ImageReaderTest.java
! test/jdk/jdk/internal/jimage/JImageReadTest.java
! test/jdk/tools/jimage/ImageReaderDuplicateChildNodesTest.java
! test/micro/org/openjdk/bench/jdk/internal/jrtfs/ImageReaderBenchmark.java

Changeset: f155f7d6
Branch: master
Author:    Fredrik Bredberg <fbredberg at openjdk.org>
Date:      2025-08-12 08:45:02 +0000
URL:       https://git.openjdk.org/loom/commit/f155f7d6e50c702f65858774cfd02ef60aa9cad5

8364141: Remove LockingMode related code from x86

Reviewed-by: aboldtch, dholmes, coleenp

! src/hotspot/cpu/x86/c1_LIRAssembler_x86.cpp
! src/hotspot/cpu/x86/c1_LIRGenerator_x86.cpp
! src/hotspot/cpu/x86/c1_MacroAssembler_x86.cpp
! src/hotspot/cpu/x86/c2_MacroAssembler_x86.cpp
! src/hotspot/cpu/x86/c2_MacroAssembler_x86.hpp
! src/hotspot/cpu/x86/interp_masm_x86.cpp
! src/hotspot/cpu/x86/sharedRuntime_x86.cpp
! src/hotspot/cpu/x86/sharedRuntime_x86_64.cpp
! src/hotspot/cpu/x86/templateInterpreterGenerator_x86.cpp
! src/hotspot/cpu/x86/x86_64.ad

Changeset: 3c0eed8e
Branch: master
Author:    Fredrik Bredberg <fbredberg at openjdk.org>
Date:      2025-08-12 08:45:36 +0000
URL:       https://git.openjdk.org/loom/commit/3c0eed8e476e4da540e4ea44ee966f278e04a067

8364406: Remove LockingMode related code from aarch64

Reviewed-by: aph, dholmes

! src/hotspot/cpu/aarch64/aarch64.ad
! src/hotspot/cpu/aarch64/c1_LIRAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/c1_MacroAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/c2_MacroAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/c2_MacroAssembler_aarch64.hpp
! src/hotspot/cpu/aarch64/interp_masm_aarch64.cpp
! src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/sharedRuntime_aarch64.cpp
! src/hotspot/cpu/aarch64/templateInterpreterGenerator_aarch64.cpp

Changeset: 16e461ef
Branch: master
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2025-08-12 08:52:37 +0000
URL:       https://git.openjdk.org/loom/commit/16e461ef31628ab47cd8484cdfc970c0008b97ba

8365122: G1: Minor clean up of G1SurvivorRegions

Reviewed-by: sangheki, kbarrett

! src/hotspot/share/gc/g1/g1Policy.cpp
! src/hotspot/share/gc/g1/g1SurvivorRegions.cpp
! src/hotspot/share/gc/g1/g1SurvivorRegions.hpp

Changeset: 95b7a8b3
Branch: master
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-12 11:29:43 +0000
URL:       https://git.openjdk.org/loom/commit/95b7a8b3e300bf40a2a5bdf8ca8310485db363e6

8365237: Remove unused SoftRefPolicy::_all_soft_refs_clear

Reviewed-by: tschatzl, kbarrett

! src/hotspot/share/gc/shared/gcVMOperations.cpp
! src/hotspot/share/gc/shared/gcVMOperations.hpp
! src/hotspot/share/gc/shared/softRefPolicy.hpp

Changeset: 19a76a45
Branch: master
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-12 11:58:37 +0000
URL:       https://git.openjdk.org/loom/commit/19a76a45e9c8616414830c865801660bc6761e92

8365316: Remove unnecessary default arg value in gcVMOperations

Reviewed-by: tschatzl

! src/hotspot/share/gc/shared/gcVMOperations.hpp

Changeset: 391ea151
Branch: master
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2025-08-12 13:16:54 +0000
URL:       https://git.openjdk.org/loom/commit/391ea151184c5621f263742605416c3ccd2c3d73

8365307: AIX make fails after JDK-8364611

Reviewed-by: clanger, asteiner

! test/jdk/java/lang/ProcessBuilder/childSignalDisposition/exePrintSignalDisposition.c

Changeset: a382996b
Branch: master
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-12 13:42:53 +0000
URL:       https://git.openjdk.org/loom/commit/a382996bb496d50b4eb5a6be9f61e5c2f8aaae2d

8364993: JFR: Disable jdk.ModuleExport in default.jfc

Reviewed-by: mgronlun

! src/jdk.jfr/share/conf/jfr/default.jfc

Changeset: ad0fd13f
Branch: master
Author:    Ioi Lam <iklam at openjdk.org>
Date:      2025-08-12 16:20:00 +0000
URL:       https://git.openjdk.org/loom/commit/ad0fd13f2007c93d8a109626a627823f30e4c8d7

8364454: ProblemList runtime/cds/DeterministicDump.java on macos for JDK-8363986

Reviewed-by: ccheung

! test/hotspot/jtreg/ProblemList.txt

Changeset: 4c03e593
Branch: master
Author:    Coleen Phillimore <coleenp at openjdk.org>
Date:      2025-08-12 16:30:09 +0000
URL:       https://git.openjdk.org/loom/commit/4c03e5938df0a9cb10c2379af81163795dd3a086

8364750: Remove unused declaration in jvm.h

Reviewed-by: shade

! src/hotspot/share/include/jvm.h

Changeset: d0239826
Branch: master
Author:    Brian Burkhalter <bpb at openjdk.org>
Date:      2025-08-12 17:39:14 +0000
URL:       https://git.openjdk.org/loom/commit/d023982600f8bb19053f579710953aa29e0f30c5

8361209: (bf) Use CharSequence::getChars for StringCharBuffer bulk get methods

Reviewed-by: rriggs, alanb

! src/java.base/share/classes/java/nio/StringCharBuffer.java
! src/java.base/share/classes/java/nio/X-Buffer.java.template
+ test/micro/org/openjdk/bench/java/nio/StringCharBufferBulkTransfer.java

Changeset: 87d73401
Branch: master
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-12 17:44:34 +0000
URL:       https://git.openjdk.org/loom/commit/87d734012e3130501bfd37b23cee7f5e0a3a476f

8364756: JFR: Improve slow tests

Reviewed-by: mgronlun

! test/jdk/jdk/jfr/api/consumer/streaming/TestFilledChunks.java
! test/jdk/jdk/jfr/api/consumer/streaming/TestStartMultiChunk.java
! test/jdk/jdk/jfr/event/runtime/StressJavaMonitorEvents.java
! test/jdk/jdk/jfr/jmx/streaming/TestMaxSize.java
! test/jdk/jdk/jfr/jmx/streaming/TestRemoteDump.java
! test/jdk/jdk/jfr/jvm/TestWaste.java
! test/jdk/jdk/jfr/startupargs/TestMultipleStartupRecordings.java

Changeset: 636c61a3
Branch: master
Author:    Dingli Zhang <dzhang at openjdk.org>
Committer: Fei Yang <fyang at openjdk.org>
Date:      2025-08-13 01:24:39 +0000
URL:       https://git.openjdk.org/loom/commit/636c61a3868d9c01b672b3b45cda1e476acdc045

8365302: RISC-V: compiler/loopopts/superword/TestAlignVector.java fails when vlen=128

Reviewed-by: fyang, fjiang

! test/hotspot/jtreg/compiler/loopopts/superword/TestAlignVector.java

Changeset: 25480f00
Branch: master
Author:    Ramkumar Sunderbabu <rsunderbabu at openjdk.org>
Committer: Leonid Mesnik <lmesnik at openjdk.org>
Date:      2025-08-13 01:45:49 +0000
URL:       https://git.openjdk.org/loom/commit/25480f0011297ad209eca1b1b56bcf983ea4ee5d

8365184: sun/tools/jhsdb/HeapDumpTestWithActiveProcess.java Re-enable SerialGC flag on debuggee process

Reviewed-by: lmesnik, cjplummer, sspitsyn

! test/jdk/sun/tools/jhsdb/JShellHeapDumpTest.java

Changeset: 72e22b4d
Branch: master
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2025-08-13 08:07:45 +0000
URL:       https://git.openjdk.org/loom/commit/72e22b4de59a18f83c75be9a51fd99726f77f6f6

8362885: A more formal way to mark javac's Flags that belong to a specific Symbol type only

Reviewed-by: ihse, liach, vromero, mcimadamore, erikj

! make/ToolsLangtools.gmk
+ make/langtools/tools/flagsgenerator/FlagsGenerator.java
! make/langtools/tools/propertiesparser/parser/MessageType.java
! make/modules/jdk.compiler/Gensrc.gmk
! src/jdk.compiler/share/classes/com/sun/tools/javac/code/Flags.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Modules.java
! test/langtools/tools/javac/diags/ArgTypeCompilerFactory.java
! test/langtools/tools/javac/flags/FlagsTest.java

Changeset: e77cdd93
Branch: master
Author:    Fredrik Bredberg <fbredberg at openjdk.org>
Date:      2025-08-13 08:47:08 +0000
URL:       https://git.openjdk.org/loom/commit/e77cdd93ead5601fea4bb1bf1847835e1097b851

8364570: Remove LockingMode related code from riscv64

Reviewed-by: fyang, fjiang

! src/hotspot/cpu/riscv/c1_LIRAssembler_riscv.cpp
! src/hotspot/cpu/riscv/c1_MacroAssembler_riscv.cpp
! src/hotspot/cpu/riscv/c2_MacroAssembler_riscv.cpp
! src/hotspot/cpu/riscv/c2_MacroAssembler_riscv.hpp
! src/hotspot/cpu/riscv/interp_masm_riscv.cpp
! src/hotspot/cpu/riscv/macroAssembler_riscv.cpp
! src/hotspot/cpu/riscv/riscv.ad
! src/hotspot/cpu/riscv/sharedRuntime_riscv.cpp
! src/hotspot/cpu/riscv/templateInterpreterGenerator_riscv.cpp

Changeset: f3b34d32
Branch: master
Author:    Guanqiang Han <ghan at openjdk.org>
Committer: Tobias Hartmann <thartmann at openjdk.org>
Date:      2025-08-13 10:52:54 +0000
URL:       https://git.openjdk.org/loom/commit/f3b34d32d6ea409f8c8f0382e8f01e746366f842

8359235: C1 compilation fails with "assert(is_single_stack() && !is_virtual()) failed: type check"

Reviewed-by: thartmann, dlong

! src/hotspot/cpu/aarch64/c1_LIRAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/c1_LIRGenerator_aarch64.cpp
! src/hotspot/cpu/riscv/c1_LIRAssembler_riscv.cpp
! src/hotspot/cpu/riscv/c1_LIRGenerator_riscv.cpp
! src/hotspot/cpu/x86/c1_LIRGenerator_x86.cpp
+ test/hotspot/jtreg/compiler/intrinsics/TestStack2RegSlotMismatch.java

Changeset: 001aaa1e
Branch: master
Author:    Boris Ulasevich <bulasevich at openjdk.org>
Date:      2025-08-13 12:45:48 +0000
URL:       https://git.openjdk.org/loom/commit/001aaa1e49f2692061cad44d68c9e81a27ea3b98

8365166: ARM32: missing os::fetch_bcp_from_context implementation

Reviewed-by: shade

! src/hotspot/os_cpu/linux_arm/os_linux_arm.cpp

Changeset: 899e13f4
Branch: master
Author:    Nikita Gubarkov <ngubarkov at openjdk.org>
Committer: Laurent Bourg?s <lbourges at openjdk.org>
Date:      2025-08-13 17:36:07 +0000
URL:       https://git.openjdk.org/loom/commit/899e13f40a70c98d1d393ba6c3973abcb36e1f00

8364434: Inconsistent BufferedContext state after GC

Reviewed-by: jdv, azvegint, avu

! src/java.desktop/share/classes/sun/java2d/pipe/BufferedContext.java
+ test/jdk/java/awt/ColorClass/WeakColorTest.java

Changeset: 38a26141
Branch: master
Author:    Srinivas Vamsi Parasa <sparasa at openjdk.org>
Committer: Sandhya Viswanathan <sviswanathan at openjdk.org>
Date:      2025-08-13 17:53:05 +0000
URL:       https://git.openjdk.org/loom/commit/38a261415dc29aae01c9b878d94cb302c60a3983

8365265: x86 short forward jump exceeds 8-bit offset in methodHandles_x86.cpp when using Intel APX

Reviewed-by: shade, jbhateja, aph

! src/hotspot/cpu/x86/methodHandles_x86.cpp

Changeset: ecbdd340
Branch: master
Author:    Alex Menkov <amenkov at openjdk.org>
Date:      2025-08-13 18:24:56 +0000
URL:       https://git.openjdk.org/loom/commit/ecbdd3405a1d46f555deb82098e1865b44601a1f

8361103: java_lang_Thread::async_get_stack_trace does not properly protect JavaThread

Reviewed-by: sspitsyn, dholmes

! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/javaClasses.hpp
! src/hotspot/share/prims/jvm.cpp

Changeset: 4680dc98
Branch: master
Author:    Johan Sj?len <jsjolen at openjdk.org>
Date:      2025-08-13 18:41:57 +0000
URL:       https://git.openjdk.org/loom/commit/4680dc983169d48fcf83eb50dc60e32e79d5d976

8365264: Rename ResourceHashtable to HashTable

Reviewed-by: iklam, ayang

! src/hotspot/share/asm/codeBuffer.hpp
! src/hotspot/share/cds/aotArtifactFinder.cpp
! src/hotspot/share/cds/aotClassLinker.hpp
! src/hotspot/share/cds/aotConstantPoolResolver.hpp
! src/hotspot/share/cds/aotReferenceObjSupport.cpp
! src/hotspot/share/cds/archiveBuilder.hpp
! src/hotspot/share/cds/archiveHeapLoader.cpp
! src/hotspot/share/cds/archiveHeapWriter.cpp
! src/hotspot/share/cds/archiveHeapWriter.hpp
! src/hotspot/share/cds/cdsHeapVerifier.hpp
! src/hotspot/share/cds/classListParser.hpp
! src/hotspot/share/cds/classListWriter.cpp
! src/hotspot/share/cds/dumpTimeClassInfo.hpp
! src/hotspot/share/cds/heapShared.cpp
! src/hotspot/share/cds/heapShared.hpp
! src/hotspot/share/cds/lambdaProxyClassDictionary.hpp
! src/hotspot/share/cds/metaspaceShared.cpp
! src/hotspot/share/cds/regeneratedClasses.cpp
! src/hotspot/share/classfile/bytecodeAssembler.hpp
! src/hotspot/share/classfile/classFileParser.cpp
! src/hotspot/share/classfile/classLoaderStats.hpp
! src/hotspot/share/classfile/loaderConstraints.cpp
! src/hotspot/share/classfile/moduleEntry.cpp
! src/hotspot/share/classfile/moduleEntry.hpp
! src/hotspot/share/classfile/packageEntry.cpp
! src/hotspot/share/classfile/packageEntry.hpp
! src/hotspot/share/classfile/placeholders.cpp
! src/hotspot/share/classfile/resolutionErrors.cpp
! src/hotspot/share/classfile/stringTable.cpp
! src/hotspot/share/classfile/systemDictionary.cpp
! src/hotspot/share/classfile/systemDictionaryShared.cpp
! src/hotspot/share/classfile/verifier.hpp
! src/hotspot/share/code/codeCache.cpp
! src/hotspot/share/code/nmethod.cpp
! src/hotspot/share/compiler/disassembler.cpp
! src/hotspot/share/gc/z/zVerify.cpp
! src/hotspot/share/jfr/support/methodtracer/jfrClassFilterClosure.cpp
! src/hotspot/share/jfr/support/methodtracer/jfrClassFilterClosure.hpp
! src/hotspot/share/jfr/support/methodtracer/jfrMethodTracer.cpp
! src/hotspot/share/jfr/utilities/jfrSet.hpp
! src/hotspot/share/jvmci/jvmciCompilerToVMInit.cpp
! src/hotspot/share/logging/logAsyncWriter.hpp
! src/hotspot/share/memory/metaspaceClosure.hpp
! src/hotspot/share/nmt/nativeCallStackPrinter.hpp
! src/hotspot/share/oops/constantPool.hpp
! src/hotspot/share/oops/instanceKlass.cpp
! src/hotspot/share/oops/trainingData.hpp
! src/hotspot/share/opto/compile.cpp
! src/hotspot/share/opto/loopnode.hpp
! src/hotspot/share/opto/mempointer.cpp
! src/hotspot/share/opto/node.hpp
! src/hotspot/share/opto/superwordVTransformBuilder.hpp
! src/hotspot/share/prims/foreignGlobals.cpp
! src/hotspot/share/prims/jvmtiTagMapTable.hpp
! src/hotspot/share/runtime/arguments.hpp
! src/hotspot/share/runtime/sharedRuntime.cpp
! src/hotspot/share/runtime/synchronizer.hpp
! src/hotspot/share/runtime/threadSMR.cpp
! src/hotspot/share/runtime/vmOperations.cpp
! src/hotspot/share/services/heapDumper.cpp
! src/hotspot/share/utilities/globalDefinitions.hpp
+ src/hotspot/share/utilities/hashTable.hpp
! src/hotspot/share/utilities/nativeCallStack.hpp
! src/hotspot/share/utilities/objectBitSet.hpp
! src/hotspot/share/utilities/objectBitSet.inline.hpp
+ src/hotspot/share/utilities/resizableHashTable.hpp
- src/hotspot/share/utilities/resizeableResourceHash.hpp
- src/hotspot/share/utilities/resourceHash.hpp
! test/hotspot/gtest/runtime/test_os_reserve_between.cpp
+ test/hotspot/gtest/utilities/test_hashtable.cpp
- test/hotspot/gtest/utilities/test_resourceHash.cpp

Changeset: 96603200
Branch: master
Author:    Justin Lu <jlu at openjdk.org>
Date:      2025-08-13 20:43:46 +0000
URL:       https://git.openjdk.org/loom/commit/9660320041d0ba0f22ebe074a64472557b85a24c

8364781: Re-examine DigitList digits resizing during parsing

Reviewed-by: liach, naoto

! src/java.base/share/classes/java/text/DigitList.java

Changeset: 9c266ae8
Branch: master
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-13 20:49:16 +0000
URL:       https://git.openjdk.org/loom/commit/9c266ae83c047025d778da41e413701ac3b50b03

8365229: ARM32: c2i_no_clinit_check_entry assert failed after JDK-8364269

Reviewed-by: kvn, adinn, bulasevich, phh

! src/hotspot/cpu/zero/sharedRuntime_zero.cpp
! src/hotspot/share/code/codeBlob.cpp
! src/hotspot/share/runtime/sharedRuntime.cpp

Changeset: 9dcc502c
Branch: master
Author:    Prasanta Sadhukhan <psadhukhan at openjdk.org>
Date:      2025-08-14 04:55:02 +0000
URL:       https://git.openjdk.org/loom/commit/9dcc502cc83773561707f2afe9aee1f9e2386b9e

8365375: Method SU3.setAcceleratorSelectionForeground assigns to acceleratorForeground

Reviewed-by: aivanov, prr, kizune

! src/java.desktop/share/classes/com/sun/java/swing/SwingUtilities3.java

Changeset: c22e01d7
Branch: master
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2025-08-14 07:02:08 +0000
URL:       https://git.openjdk.org/loom/commit/c22e01d77648036db4ed640521e82c49f8791ca1

8341342: Elements.getAllModuleElements() does not work properly before JavacTask.analyze()

Reviewed-by: vromero, liach

! src/jdk.compiler/share/classes/com/sun/tools/javac/model/JavacElements.java
! test/jdk/tools/sincechecker/SinceChecker.java
+ test/langtools/tools/javac/processing/model/util/elements/TestElementsProgrammatic.java

Changeset: a6be2286
Branch: master
Author:    Jan Lahoda <jlahoda at openjdk.org>
Date:      2025-08-14 07:04:40 +0000
URL:       https://git.openjdk.org/loom/commit/a6be2286421e069a292c749eecd6bdc38a8deaf2

8365314: javac fails with an exception for erroneous source

Reviewed-by: vromero

! src/jdk.compiler/share/classes/com/sun/tools/javac/code/Lint.java
! test/langtools/tools/javac/recovery/AnnotationRecovery.java

Changeset: 3e329850
Branch: master
Author:    Joel Sikstr?m <jsikstro at openjdk.org>
Date:      2025-08-14 07:37:10 +0000
URL:       https://git.openjdk.org/loom/commit/3e3298509f136583b18e5ab8bf75a8b012016f16

8365317: ZGC: Setting ZYoungGCThreads lower than ZOldGCThreads may result in a crash

Reviewed-by: tschatzl, eosterlund

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

Changeset: e3201628
Branch: master
Author:    Yudi Zheng <yzheng at openjdk.org>
Date:      2025-08-14 07:39:49 +0000
URL:       https://git.openjdk.org/loom/commit/e320162815d529bc65cd058b34ec39d60d032ce7

8365218: [JVMCI] AArch64 CPU features are not computed correctly after 8364128

Reviewed-by: dnsimon

! src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/hotspot/HotSpotJVMCIBackendFactory.java
! src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/hotspot/aarch64/AArch64HotSpotJVMCIBackendFactory.java
! src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/hotspot/amd64/AMD64HotSpotJVMCIBackendFactory.java
! src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/hotspot/riscv64/RISCV64HotSpotJVMCIBackendFactory.java

Changeset: 7698c373
Branch: master
Author:    Erik Gahlin <egahlin at openjdk.org>
Date:      2025-08-14 10:43:21 +0000
URL:       https://git.openjdk.org/loom/commit/7698c373a684235812c9dc11edd751059f9e8e81

8364556: JFR:  Disable SymbolTableStatistics and StringTableStatistics in default.jfc

Reviewed-by: mgronlun

! src/jdk.jfr/share/conf/jfr/default.jfc

Changeset: 98f54d90
Branch: master
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2025-08-14 11:11:47 +0000
URL:       https://git.openjdk.org/loom/commit/98f54d90ea56f63c2fc5137af98b57dbc90fe150

8365487: [asan] some oops (mode) related tests fail

Reviewed-by: kbarrett, syan

! test/hotspot/jtreg/runtime/CompressedOops/UseCompressedOops.java
! test/jdk/jdk/jfr/event/gc/configuration/TestGCHeapConfigurationEventWith32BitOops.java
! test/jdk/jdk/jfr/event/gc/configuration/TestGCHeapConfigurationEventWithZeroBasedOops.java

Changeset: 41520998
Branch: master
Author:    Roman Marchenko <rmarchenko at openjdk.org>
Committer: Magnus Ihse Bursie <ihse at openjdk.org>
Date:      2025-08-14 12:31:20 +0000
URL:       https://git.openjdk.org/loom/commit/41520998aa8808452ee384b213b2a77c7bad668d

8365098: make/RunTests.gmk generates a wrong path to test artifacts on Alpine

Reviewed-by: erikj, ihse

! make/RunTests.gmk

Changeset: dd113c8d
Branch: master
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Date:      2025-08-14 14:50:56 +0000
URL:       https://git.openjdk.org/loom/commit/dd113c8df06cc7e1465fb3dfef2e9b2a5a99f1fb

8364628: Serial: Refactor SerialHeap::mem_allocate_work

Reviewed-by: phh, kbarrett

! src/hotspot/share/gc/serial/serialHeap.cpp
! src/hotspot/share/gc/serial/serialHeap.hpp
! src/hotspot/share/gc/serial/tenuredGeneration.hpp
! src/hotspot/share/gc/serial/tenuredGeneration.inline.hpp


From davidalayachew at gmail.com  Fri Aug 15 09:52:30 2025
From: davidalayachew at gmail.com (David Alayachew)
Date: Fri, 15 Aug 2025 05:52:30 -0400
Subject: My experience with Structured Concurrency
Message-ID: <CAA9v-_Ncj6oyTM7A7V7yCt2zL-Lz89xrT1DTA9RG2hiGxo1Zpg@mail.gmail.com>

Hello @loom-dev <loom-dev at openjdk.org>,

I just wanted to share my experience with Structured Concurrency. I had
actually been using it for a while now, but only recently got experience
with the new Joiner. After trying it out, my previously stated opinion has
changed.

Overall, Structured Concurrency has been a pleasure. I'll avoid repeating
ALL my old thoughts and just highlight the KEY details.

* Structured Concurrency is excellent for complex error-handling. Receiving
exceptions via the subtask makes all the error-handling less painful.
* Structured Concurrency makes nesting scopes a breeze, a task I
historically found very painful to do.
* Inheritance allows me to take an existing Scope (now Joiner), and modify
only what I need to in order to modify it for my use case. Great for
reusing old strategies in new ways.

Now for the new stuff -- having Joiner be the point of extension definitely
proved to be the right move imo. I didn't mention this in my original
message, but while it was easy to get a scope set up using inheritance, it
wasn't always clear what invariants needed to be maintained. For example,
the ensureOwnerAndJoined method. Was that something we needed to call when
inheriting? On which methods? Just join()?

The Joiner solution is comparatively simpler, which actually meant that I
ended up creating way more Joiners, rather than only several STS'. Joiners
invariants are obvious, and there is no ambiguity on what is expected from
the implementor.

Which, funnily enough, led to a slightly different problem -- I found
myself wanting an easier way to create Joiners. Since I was leaning on
Joiners so much more heavily than I was for STS, I ended up creating many
Joiners that do almost the same thing, with just minor variations. And
inheritance wasn't always the right answer, as I can't inherit from
multiple classes. Plus, most of my joiners were stateful, but I only wanted
the non-stateful parts of it. I could do composition, but it sort of felt
weird to delegate to multiple other Joiners.

Part of me kept wondering how well a factory method, similar to the ones
for Collectors and Gatherers, might fare for Joiners.

Regardless, even if we don't get that factory method, this library has been
a pleasure, and I can't wait to properly implement this once it goes live.

Thank you for your time and consideration.
David Alayachew
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From viktor.klang at oracle.com  Fri Aug 15 13:25:02 2025
From: viktor.klang at oracle.com (Viktor Klang)
Date: Fri, 15 Aug 2025 13:25:02 +0000
Subject: My experience with Structured Concurrency
In-Reply-To: <CAA9v-_Ncj6oyTM7A7V7yCt2zL-Lz89xrT1DTA9RG2hiGxo1Zpg@mail.gmail.com>
References: <CAA9v-_Ncj6oyTM7A7V7yCt2zL-Lz89xrT1DTA9RG2hiGxo1Zpg@mail.gmail.com>
Message-ID: <MW4PR10MB5774F4336B287D4B81C817E9FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>

Hi David,

First of all?thank you for your feedback!

I'm curious to learn more about why you ended up in the situation you describe below, specifically about what use-cases led you into wishing for an augmentation to Joiner to facilitate composition.

Are you able to share more details?

>Which, funnily enough, led to a slightly different problem -- I found myself wanting an easier way to create Joiners. Since I was leaning on Joiners so much more heavily than I was for STS, I ended up creating many Joiners that do almost the same thing, with just minor variations. And inheritance wasn't always the right answer, as I can't inherit from multiple classes. Plus, most of my joiners were stateful, but I only wanted the non-stateful parts of it. I could do composition, but it sort of felt weird to delegate to multiple other Joiners.

Cheers,
?


Viktor Klang
Software Architect, Java Platform Group
Oracle
________________________________
From: loom-dev <loom-dev-retn at openjdk.org> on behalf of David Alayachew <davidalayachew at gmail.com>
Sent: Friday, 15 August 2025 11:52
To: loom-dev <loom-dev at openjdk.org>
Subject: My experience with Structured Concurrency

Hello @loom-dev<mailto:loom-dev at openjdk.org>,

I just wanted to share my experience with Structured Concurrency. I had actually been using it for a while now, but only recently got experience with the new Joiner. After trying it out, my previously stated opinion has changed.

Overall, Structured Concurrency has been a pleasure. I'll avoid repeating ALL my old thoughts and just highlight the KEY details.

* Structured Concurrency is excellent for complex error-handling. Receiving exceptions via the subtask makes all the error-handling less painful.
* Structured Concurrency makes nesting scopes a breeze, a task I historically found very painful to do.
* Inheritance allows me to take an existing Scope (now Joiner), and modify only what I need to in order to modify it for my use case. Great for reusing old strategies in new ways.

Now for the new stuff -- having Joiner be the point of extension definitely proved to be the right move imo. I didn't mention this in my original message, but while it was easy to get a scope set up using inheritance, it wasn't always clear what invariants needed to be maintained. For example, the ensureOwnerAndJoined method. Was that something we needed to call when inheriting? On which methods? Just join()?

The Joiner solution is comparatively simpler, which actually meant that I ended up creating way more Joiners, rather than only several STS'. Joiners invariants are obvious, and there is no ambiguity on what is expected from the implementor.

Which, funnily enough, led to a slightly different problem -- I found myself wanting an easier way to create Joiners. Since I was leaning on Joiners so much more heavily than I was for STS, I ended up creating many Joiners that do almost the same thing, with just minor variations. And inheritance wasn't always the right answer, as I can't inherit from multiple classes. Plus, most of my joiners were stateful, but I only wanted the non-stateful parts of it. I could do composition, but it sort of felt weird to delegate to multiple other Joiners.

Part of me kept wondering how well a factory method, similar to the ones for Collectors and Gatherers, might fare for Joiners.

Regardless, even if we don't get that factory method, this library has been a pleasure, and I can't wait to properly implement this once it goes live.

Thank you for your time and consideration.
David Alayachew

-------------- next part --------------
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From duke at openjdk.org  Fri Aug 15 14:19:40 2025
From: duke at openjdk.org (duke)
Date: Fri, 15 Aug 2025 14:19:40 GMT
Subject: git: openjdk/loom: fibers: 2 new changesets
Message-ID: <dd358ac9-0eeb-4d2c-acb2-78688053b974@openjdk.org>

Changeset: 1eb0f413
Branch: fibers
Author:    Patricio Chilano Mateo <patricio.chilano.mateo at oracle.com>
Date:      2025-08-15 10:18:03 +0000
URL:       https://git.openjdk.org/loom/commit/1eb0f413039c9619fdc4cedcfc4156102f74c9a7

Fix x86 call_VM_preemptable_helper

! src/hotspot/cpu/x86/interp_masm_x86.cpp

Changeset: c0f79f20
Branch: fibers
Author:    Patricio Chilano Mateo <patricio.chilano.mateo at oracle.com>
Date:      2025-08-15 10:18:22 +0000
URL:       https://git.openjdk.org/loom/commit/c0f79f20f9e1e710ace12661f8f4539d20d3c7e0

Add new test for failed klass init case

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


From alan.bateman at oracle.com  Fri Aug 15 18:00:20 2025
From: alan.bateman at oracle.com (Alan Bateman)
Date: Fri, 15 Aug 2025 19:00:20 +0100
Subject: CFV: New loom Committer: Michael McMahon
Message-ID: <257385d6-0f24-4ecf-b9b0-12a93a1e10f6@oracle.com>

I hereby nominate Michael McMahon to Loom Committer.

Michael is a jdk Project Reviewer and lead for the OpenJDK Networking 
Group. Michael has been exploring improvements in how virtual threads 
make use of the network APIs, including io_uring support.

Only current Loom Committers [1] are eligible to vote on this nomination.
Votes must be cast in the open by replying to this mailing list.

Votes are due by 23:59 GMT August 29, 2025.

For Lazy Consensus voting instructions, see [2].

-Alan

[1] http://openjdk.java.net/census#loom
[2] http://openjdk.java.net/projects/#committer-vote



From patricio.chilano.mateo at oracle.com  Fri Aug 15 18:20:09 2025
From: patricio.chilano.mateo at oracle.com (Patricio Chilano Mateo)
Date: Fri, 15 Aug 2025 14:20:09 -0400
Subject: CFV: New loom Committer: Michael McMahon
In-Reply-To: <257385d6-0f24-4ecf-b9b0-12a93a1e10f6@oracle.com>
References: <257385d6-0f24-4ecf-b9b0-12a93a1e10f6@oracle.com>
Message-ID: <ffd987b9-3141-1ed4-6a1c-609bbbb489cd@oracle.com>

Vote: yes

On 8/15/25 2:00?PM, Alan Bateman wrote:
> I hereby nominate Michael McMahon to Loom Committer.
>
> Michael is a jdk Project Reviewer and lead for the OpenJDK Networking 
> Group. Michael has been exploring improvements in how virtual threads 
> make use of the network APIs, including io_uring support.
>
> Only current Loom Committers [1] are eligible to vote on this nomination.
> Votes must be cast in the open by replying to this mailing list.
>
> Votes are due by 23:59 GMT August 29, 2025.
>
> For Lazy Consensus voting instructions, see [2].
>
> -Alan
>
> [1] http://openjdk.java.net/census#loom
> [2] http://openjdk.java.net/projects/#committer-vote
>
>


From davidalayachew at gmail.com  Fri Aug 15 18:44:31 2025
From: davidalayachew at gmail.com (David Alayachew)
Date: Fri, 15 Aug 2025 14:44:31 -0400
Subject: My experience with Structured Concurrency
In-Reply-To: <MW4PR10MB5774F4336B287D4B81C817E9FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>
References: <CAA9v-_Ncj6oyTM7A7V7yCt2zL-Lz89xrT1DTA9RG2hiGxo1Zpg@mail.gmail.com>
 <MW4PR10MB5774F4336B287D4B81C817E9FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>
Message-ID: <CAA9v-_O9PEQPm2U6SLvQ11qwzYJW=HbW5orP_RMX-oBGVA9GqQ@mail.gmail.com>

Sure.

Long story short, the biggest reason why STS is so useful for me is because
it allows me to fire off a bunch of requests, and handle their failures and
outcomes centrally. That is the single most useful feature of this library
for me. It's also why Future.status was not so useful for me -- it calls
get under the hood, and therefore might fail! Handling that was too much
scaffolding.

So, when someone recently challenged me to use Joiners (rather than the old
STS preview versions I was used to), I started creating Joiners to handle
all sorts of failure and outcomes. At first, a lot of them could be handled
by the Joiner.awaitUntil(), where I would just check and see if the task
failed, then handle the error. But as I got further and further along, I
started needing to add state to my Joiners in order to get the failure
handling that I wanted. For example, if a certain number of timeouts occur,
cancel the scope. Well, that necessitates an AtomicNumber.

Then, as the error-handling got more and more complex, I started finding
myself making a whole bunch of copy paste, minor variations of similar
Joiners. Which isn't bad or wrong, but started to feel some strain. Now, I
need to jump through an inheritance chain just to see what my Joiner is
really doing. It wasn't so bad, but I did start to feel a little uneasy.
Bad memories.

So, the solution to a problem like this is to create a Joiner factory.
Which is essentially what I started to write before I started remembering
how Collectors and Gatherers worked. At that point, I kind of realized that
this is worth suggesting, which prompted me to write my original email.

Like I said, not a big deal if you don't give it to me -- I can just make
my own.

But yes, that is the surrounding context behind that quote. Let me know if
you need more details.


On Fri, Aug 15, 2025, 9:25?AM Viktor Klang <viktor.klang at oracle.com> wrote:

> Hi David,
>
> First of all?thank you for your feedback!
>
> I'm curious to learn more about why you ended up in the situation you
> describe below, specifically about what use-cases led you into wishing for
> an augmentation to Joiner to facilitate composition.
>
> Are you able to share more details?
>
> >Which, funnily enough, led to a slightly different problem -- I found
> myself wanting an easier way to create Joiners. Since I was leaning on
> Joiners so much more heavily than I was for STS, I ended up creating many
> Joiners that do almost the same thing, with just minor variations. And
> inheritance wasn't always the right answer, as I can't inherit from
> multiple classes. Plus, most of my joiners were stateful, but I only wanted
> the non-stateful parts of it. I could do composition, but it sort of felt
> weird to delegate to multiple other Joiners.
>
> Cheers,
> ?
>
>
> *Viktor Klang*
> Software Architect, Java Platform Group
> Oracle
> ------------------------------
> *From:* loom-dev <loom-dev-retn at openjdk.org> on behalf of David Alayachew
> <davidalayachew at gmail.com>
> *Sent:* Friday, 15 August 2025 11:52
> *To:* loom-dev <loom-dev at openjdk.org>
> *Subject:* My experience with Structured Concurrency
>
> Hello @loom-dev <loom-dev at openjdk.org>,
>
> I just wanted to share my experience with Structured Concurrency. I had
> actually been using it for a while now, but only recently got experience
> with the new Joiner. After trying it out, my previously stated opinion has
> changed.
>
> Overall, Structured Concurrency has been a pleasure. I'll avoid repeating
> ALL my old thoughts and just highlight the KEY details.
>
> * Structured Concurrency is excellent for complex error-handling.
> Receiving exceptions via the subtask makes all the error-handling less
> painful.
> * Structured Concurrency makes nesting scopes a breeze, a task I
> historically found very painful to do.
> * Inheritance allows me to take an existing Scope (now Joiner), and modify
> only what I need to in order to modify it for my use case. Great for
> reusing old strategies in new ways.
>
> Now for the new stuff -- having Joiner be the point of extension
> definitely proved to be the right move imo. I didn't mention this in my
> original message, but while it was easy to get a scope set up using
> inheritance, it wasn't always clear what invariants needed to be
> maintained. For example, the ensureOwnerAndJoined method. Was that
> something we needed to call when inheriting? On which methods? Just join()?
>
> The Joiner solution is comparatively simpler, which actually meant that I
> ended up creating way more Joiners, rather than only several STS'. Joiners
> invariants are obvious, and there is no ambiguity on what is expected from
> the implementor.
>
> Which, funnily enough, led to a slightly different problem -- I found
> myself wanting an easier way to create Joiners. Since I was leaning on
> Joiners so much more heavily than I was for STS, I ended up creating many
> Joiners that do almost the same thing, with just minor variations. And
> inheritance wasn't always the right answer, as I can't inherit from
> multiple classes. Plus, most of my joiners were stateful, but I only wanted
> the non-stateful parts of it. I could do composition, but it sort of felt
> weird to delegate to multiple other Joiners.
>
> Part of me kept wondering how well a factory method, similar to the ones
> for Collectors and Gatherers, might fare for Joiners.
>
> Regardless, even if we don't get that factory method, this library has
> been a pleasure, and I can't wait to properly implement this once it goes
> live.
>
> Thank you for your time and consideration.
> David Alayachew
>
>
-------------- next part --------------
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From davidalayachew at gmail.com  Fri Aug 15 18:53:24 2025
From: davidalayachew at gmail.com (David Alayachew)
Date: Fri, 15 Aug 2025 14:53:24 -0400
Subject: My experience with Structured Concurrency
In-Reply-To: <CAA9v-_O9PEQPm2U6SLvQ11qwzYJW=HbW5orP_RMX-oBGVA9GqQ@mail.gmail.com>
References: <CAA9v-_Ncj6oyTM7A7V7yCt2zL-Lz89xrT1DTA9RG2hiGxo1Zpg@mail.gmail.com>
 <MW4PR10MB5774F4336B287D4B81C817E9FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>
 <CAA9v-_O9PEQPm2U6SLvQ11qwzYJW=HbW5orP_RMX-oBGVA9GqQ@mail.gmail.com>
Message-ID: <CAA9v-_MZLT87wWoUVU0X5FmBCYd6xHt3juzibndB=ErfNTR8SA@mail.gmail.com>

One other detail I'd like to highlight.

Much like Collectors and Gatherers, there are a handful of super useful
ones that you use everywhere, and then the rest are ad-hoc, inline ones
where you sort of just make your own to handle a custom scenario. If you
use streams often, you will run into those frequently, and that's why those
factory methods are fantastic.

Well, I have kind of found myself in the same position for Joiners. Joiners
aren't as complex as Collectors and Gatherers, so there has certainly been
less need for it. But I am also only a few weeks into using Joiners
(though, I used STS for over a year). If I feel this strain now, then I
feel like this experience is definitely worth sharing.

On Fri, Aug 15, 2025, 2:44?PM David Alayachew <davidalayachew at gmail.com>
wrote:

> Sure.
>
> Long story short, the biggest reason why STS is so useful for me is
> because it allows me to fire off a bunch of requests, and handle their
> failures and outcomes centrally. That is the single most useful feature of
> this library for me. It's also why Future.status was not so useful for me
> -- it calls get under the hood, and therefore might fail! Handling that was
> too much scaffolding.
>
> So, when someone recently challenged me to use Joiners (rather than the
> old STS preview versions I was used to), I started creating Joiners to
> handle all sorts of failure and outcomes. At first, a lot of them could be
> handled by the Joiner.awaitUntil(), where I would just check and see if the
> task failed, then handle the error. But as I got further and further along,
> I started needing to add state to my Joiners in order to get the failure
> handling that I wanted. For example, if a certain number of timeouts occur,
> cancel the scope. Well, that necessitates an AtomicNumber.
>
> Then, as the error-handling got more and more complex, I started finding
> myself making a whole bunch of copy paste, minor variations of similar
> Joiners. Which isn't bad or wrong, but started to feel some strain. Now, I
> need to jump through an inheritance chain just to see what my Joiner is
> really doing. It wasn't so bad, but I did start to feel a little uneasy.
> Bad memories.
>
> So, the solution to a problem like this is to create a Joiner factory.
> Which is essentially what I started to write before I started remembering
> how Collectors and Gatherers worked. At that point, I kind of realized that
> this is worth suggesting, which prompted me to write my original email.
>
> Like I said, not a big deal if you don't give it to me -- I can just make
> my own.
>
> But yes, that is the surrounding context behind that quote. Let me know if
> you need more details.
>
>
> On Fri, Aug 15, 2025, 9:25?AM Viktor Klang <viktor.klang at oracle.com>
> wrote:
>
>> Hi David,
>>
>> First of all?thank you for your feedback!
>>
>> I'm curious to learn more about why you ended up in the situation you
>> describe below, specifically about what use-cases led you into wishing for
>> an augmentation to Joiner to facilitate composition.
>>
>> Are you able to share more details?
>>
>> >Which, funnily enough, led to a slightly different problem -- I found
>> myself wanting an easier way to create Joiners. Since I was leaning on
>> Joiners so much more heavily than I was for STS, I ended up creating many
>> Joiners that do almost the same thing, with just minor variations. And
>> inheritance wasn't always the right answer, as I can't inherit from
>> multiple classes. Plus, most of my joiners were stateful, but I only wanted
>> the non-stateful parts of it. I could do composition, but it sort of felt
>> weird to delegate to multiple other Joiners.
>>
>> Cheers,
>> ?
>>
>>
>> *Viktor Klang*
>> Software Architect, Java Platform Group
>> Oracle
>> ------------------------------
>> *From:* loom-dev <loom-dev-retn at openjdk.org> on behalf of David
>> Alayachew <davidalayachew at gmail.com>
>> *Sent:* Friday, 15 August 2025 11:52
>> *To:* loom-dev <loom-dev at openjdk.org>
>> *Subject:* My experience with Structured Concurrency
>>
>> Hello @loom-dev <loom-dev at openjdk.org>,
>>
>> I just wanted to share my experience with Structured Concurrency. I had
>> actually been using it for a while now, but only recently got experience
>> with the new Joiner. After trying it out, my previously stated opinion has
>> changed.
>>
>> Overall, Structured Concurrency has been a pleasure. I'll avoid repeating
>> ALL my old thoughts and just highlight the KEY details.
>>
>> * Structured Concurrency is excellent for complex error-handling.
>> Receiving exceptions via the subtask makes all the error-handling less
>> painful.
>> * Structured Concurrency makes nesting scopes a breeze, a task I
>> historically found very painful to do.
>> * Inheritance allows me to take an existing Scope (now Joiner), and
>> modify only what I need to in order to modify it for my use case. Great for
>> reusing old strategies in new ways.
>>
>> Now for the new stuff -- having Joiner be the point of extension
>> definitely proved to be the right move imo. I didn't mention this in my
>> original message, but while it was easy to get a scope set up using
>> inheritance, it wasn't always clear what invariants needed to be
>> maintained. For example, the ensureOwnerAndJoined method. Was that
>> something we needed to call when inheriting? On which methods? Just join()?
>>
>> The Joiner solution is comparatively simpler, which actually meant that I
>> ended up creating way more Joiners, rather than only several STS'. Joiners
>> invariants are obvious, and there is no ambiguity on what is expected from
>> the implementor.
>>
>> Which, funnily enough, led to a slightly different problem -- I found
>> myself wanting an easier way to create Joiners. Since I was leaning on
>> Joiners so much more heavily than I was for STS, I ended up creating many
>> Joiners that do almost the same thing, with just minor variations. And
>> inheritance wasn't always the right answer, as I can't inherit from
>> multiple classes. Plus, most of my joiners were stateful, but I only wanted
>> the non-stateful parts of it. I could do composition, but it sort of felt
>> weird to delegate to multiple other Joiners.
>>
>> Part of me kept wondering how well a factory method, similar to the ones
>> for Collectors and Gatherers, might fare for Joiners.
>>
>> Regardless, even if we don't get that factory method, this library has
>> been a pleasure, and I can't wait to properly implement this once it goes
>> live.
>>
>> Thank you for your time and consideration.
>> David Alayachew
>>
>>
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From duke at openjdk.org  Fri Aug 15 18:57:57 2025
From: duke at openjdk.org (duke)
Date: Fri, 15 Aug 2025 18:57:57 GMT
Subject: git: openjdk/loom: fibers: 18 new changesets
Message-ID: <01c8a82a-e36a-4ea0-90ff-94aebc09dd01@openjdk.org>

Changeset: b0f98df7
Branch: fibers
Author:    Phil Race <prr at openjdk.org>
Date:      2025-08-14 15:20:47 +0000
URL:       https://git.openjdk.org/loom/commit/b0f98df75aee1e94a8c4b3eb8d0b1f4e715011ae

8365416: java.desktop no longer needs preview feature access

Reviewed-by: alanb, jpai

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

Changeset: 26ccb3ce
Branch: fibers
Author:    Igor Veresov <iveresov at openjdk.org>
Date:      2025-08-14 16:59:05 +0000
URL:       https://git.openjdk.org/loom/commit/26ccb3cef17a7a2a4b09af1e1e29b96d54a418aa

8362530: VM crash with -XX:+PrintTieredEvents when collecting AOT profiling

Reviewed-by: chagedorn, kvn

! src/hotspot/share/compiler/compilationPolicy.cpp
! src/hotspot/share/compiler/compilationPolicy.hpp
! test/hotspot/jtreg/runtime/cds/appcds/aotFlags/AOTFlags.java

Changeset: ba231052
Branch: fibers
Author:    David Beaumont <david.beaumont at oracle.com>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-14 17:02:05 +0000
URL:       https://git.openjdk.org/loom/commit/ba231052319676ece5105253b58efa4e906feab4

8365048: idea.sh script does not correctly detect/handle git worktrees

Reviewed-by: shade, vyazici, erikj, mcimadamore, ihse

! bin/idea.sh

Changeset: dccca0fb
Branch: fibers
Author:    William Kemper <wkemper at openjdk.org>
Date:      2025-08-14 19:58:54 +0000
URL:       https://git.openjdk.org/loom/commit/dccca0fb7a892d31179b70fa861b8b3cdde54e84

8365572: Shenandoah: Remove unused thread local _paced_time field

Reviewed-by: shade

! src/hotspot/share/gc/shenandoah/shenandoahThreadLocalData.cpp
! src/hotspot/share/gc/shenandoah/shenandoahThreadLocalData.hpp

Changeset: c5cbcac8
Branch: fibers
Author:    Chen Liang <liach at openjdk.org>
Date:      2025-08-14 20:27:08 +0000
URL:       https://git.openjdk.org/loom/commit/c5cbcac828e1c7aa845cf16e68f6306ae49e050c

8361730: The CodeBuilder.trying(BlockCodeBuilder,CatchBuilder) method generates corrupted bytecode in certain cases

Reviewed-by: asotona

! src/java.base/share/classes/java/lang/classfile/CodeBuilder.java

Changeset: 8c363b3e
Branch: fibers
Author:    Chen Liang <liach at openjdk.org>
Date:      2025-08-14 21:41:14 +0000
URL:       https://git.openjdk.org/loom/commit/8c363b3e3e5c1273a5e9b3393ed09a31b0647a21

8364319: Move java.lang.constant.AsTypeMethodHandleDesc to jdk.internal

Reviewed-by: redestad

- src/java.base/share/classes/java/lang/constant/AsTypeMethodHandleDesc.java
! src/java.base/share/classes/java/lang/constant/ConstantDescs.java
! src/java.base/share/classes/java/lang/constant/MethodHandleDesc.java
+ src/java.base/share/classes/jdk/internal/constant/AsTypeMethodHandleDesc.java

Changeset: a65f2002
Branch: fibers
Author:    Vladimir Kozlov <kvn at openjdk.org>
Date:      2025-08-14 23:59:34 +0000
URL:       https://git.openjdk.org/loom/commit/a65f20022080e627da4782b9b643912a9dd69335

8365512: Replace -Xcomp with -Xmixed for AOT assembly phase

Reviewed-by: shade

! src/hotspot/share/cds/cdsConfig.cpp

Changeset: 44b19c01
Branch: fibers
Author:    David Beaumont <david.beaumont at oracle.com>
Committer: SendaoYan <syan at openjdk.org>
Date:      2025-08-15 02:53:42 +0000
URL:       https://git.openjdk.org/loom/commit/44b19c01acdfff07a4f017466be3f03fae6013c6

8365532: java/lang/module/ModuleReader/ModuleReaderTest.testImage fails

Reviewed-by: alanb

! src/java.base/share/classes/jdk/internal/module/SystemModuleFinders.java

Changeset: 6fb6f3d3
Branch: fibers
Author:    Chen Liang <liach at openjdk.org>
Date:      2025-08-15 04:25:37 +0000
URL:       https://git.openjdk.org/loom/commit/6fb6f3d39b321e2a1c1fa2cef2c19222a6dcf7b9

8361638: java.lang.classfile.CodeBuilder.CatchBuilder should not throw IllegalArgumentException for representable exception handlers

Reviewed-by: asotona

! src/java.base/share/classes/java/lang/classfile/CodeBuilder.java
! src/java.base/share/classes/java/lang/classfile/instruction/ExceptionCatch.java
! src/java.base/share/classes/jdk/internal/classfile/impl/CatchBuilderImpl.java
! test/jdk/jdk/classfile/BuilderTryCatchTest.java

Changeset: e3aeebec
Branch: fibers
Author:    Doug Simon <dnsimon at openjdk.org>
Date:      2025-08-15 07:35:52 +0000
URL:       https://git.openjdk.org/loom/commit/e3aeebec1798b9adbb02e11f285951d4275c52e8

8365468: EagerJVMCI should only apply to the CompilerBroker JVMCI runtime

Reviewed-by: never

! src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/hotspot/HotSpotJVMCIRuntime.java

Changeset: fa2eb616
Branch: fibers
Author:    Manuel H?ssig <mhaessig at openjdk.org>
Date:      2025-08-15 08:55:11 +0000
URL:       https://git.openjdk.org/loom/commit/fa2eb616482250dff6a3b667798aec37114005a9

8365491: VSCode IDE: add basic configuration for the Oracle Java extension

Reviewed-by: ihse, jlahoda

! make/ide/vscode/hotspot/template-workspace.jsonc

Changeset: 5856dc34
Branch: fibers
Author:    Markus Gr?nlund <mgronlun at openjdk.org>
Date:      2025-08-15 09:32:51 +0000
URL:       https://git.openjdk.org/loom/commit/5856dc34c82de9f840be1dc28a9917224971491f

8365199: Use a set instead of a list as the intermediary Klass* storage to reduce typeset processing

Reviewed-by: egahlin

! src/hotspot/share/jfr/leakprofiler/checkpoint/objectSampleCheckpoint.cpp
! src/hotspot/share/jfr/leakprofiler/sampling/objectSample.hpp
! src/hotspot/share/jfr/recorder/checkpoint/jfrMetadataEvent.cpp
! src/hotspot/share/jfr/recorder/checkpoint/jfrMetadataEvent.hpp
! src/hotspot/share/jfr/recorder/checkpoint/types/jfrTypeSet.cpp
! src/hotspot/share/jfr/recorder/checkpoint/types/jfrTypeSetUtils.cpp
! src/hotspot/share/jfr/recorder/checkpoint/types/jfrTypeSetUtils.hpp
! src/hotspot/share/jfr/recorder/service/jfrRecorderService.cpp
! src/hotspot/share/jfr/support/jfrKlassUnloading.cpp
! src/hotspot/share/jfr/utilities/jfrSet.hpp
! test/jdk/jdk/jfr/event/runtime/TestFlush.java

Changeset: b6d5f49b
Branch: fibers
Author:    Guanqiang Han <ghan at openjdk.org>
Committer: Matthias Baesken <mbaesken at openjdk.org>
Date:      2025-08-15 09:41:17 +0000
URL:       https://git.openjdk.org/loom/commit/b6d5f49b8dc2cb7c8e93d7885c2432a28d04e57e

8365296: Build failure with Clang due to -Wformat warning after JDK-8364611

Reviewed-by: ayang, mbaesken

! test/jdk/java/lang/ProcessBuilder/childSignalDisposition/exePrintSignalDisposition.c

Changeset: 059b49b9
Branch: fibers
Author:    Volkan Yazici <vyazici at openjdk.org>
Date:      2025-08-15 10:37:26 +0000
URL:       https://git.openjdk.org/loom/commit/059b49b9551ad52f211613a3da2ac0a79deb5ed4

8365244: Some test control variables are undocumented in doc/testing.md

Reviewed-by: erikj

! doc/testing.html
! doc/testing.md

Changeset: dbae90c9
Branch: fibers
Author:    Francesco Andreuzzi <andreuzzi.francesco at gmail.com>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-15 10:45:00 +0000
URL:       https://git.openjdk.org/loom/commit/dbae90c950200cb417aebeab65e5fce7a7e5f94f

8364723: Sort share/interpreter includes

Reviewed-by: shade, ayang

! src/hotspot/share/interpreter/abstractInterpreter.cpp
! src/hotspot/share/interpreter/bytecodeStream.cpp
! src/hotspot/share/interpreter/bytecodeTracer.cpp
! src/hotspot/share/interpreter/bytecodeUtils.cpp
! src/hotspot/share/interpreter/interpreter.cpp
! src/hotspot/share/interpreter/interpreterRuntime.cpp
! src/hotspot/share/interpreter/templateInterpreter.cpp
! src/hotspot/share/interpreter/templateInterpreterGenerator.cpp
! src/hotspot/share/interpreter/zero/bytecodeInterpreter.cpp
! src/hotspot/share/interpreter/zero/bytecodeInterpreter.inline.hpp
! src/hotspot/share/interpreter/zero/zeroInterpreterGenerator.hpp
! test/hotspot/jtreg/sources/TestIncludesAreSorted.java

Changeset: 7c113e52
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-15 18:18:27 +0000
URL:       https://git.openjdk.org/loom/commit/7c113e5235c562a38bf1a5fc8a9e9d3bfac7275a

Merge branch 'master' into fibers

! src/hotspot/share/interpreter/interpreterRuntime.cpp
! src/hotspot/share/interpreter/interpreterRuntime.cpp

Changeset: 1f48247a
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-15 17:01:30 +0000
URL:       https://git.openjdk.org/loom/commit/1f48247a3433d2d0d5dd7f03a3b292e75408e18c

Poller update

! src/java.base/linux/classes/sun/nio/ch/EPollPoller.java
! src/java.base/linux/classes/sun/nio/ch/IoUringPoller.java
! src/java.base/macosx/classes/sun/nio/ch/KQueuePoller.java
! src/java.base/share/classes/sun/nio/ch/Poller.java
! test/jdk/java/nio/channels/vthread/BlockingChannelOps.java

Changeset: c377cb8e
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-08-15 18:18:39 +0000
URL:       https://git.openjdk.org/loom/commit/c377cb8ebe6ad181b68404957bbb93661c549fb0

Merge loom into fibers



From duke at openjdk.org  Fri Aug 15 18:58:45 2025
From: duke at openjdk.org (duke)
Date: Fri, 15 Aug 2025 18:58:45 GMT
Subject: git: openjdk/loom: master: 15 new changesets
Message-ID: <db3a72f4-c91b-4175-88bf-670bb26e4f04@openjdk.org>

Changeset: b0f98df7
Branch: master
Author:    Phil Race <prr at openjdk.org>
Date:      2025-08-14 15:20:47 +0000
URL:       https://git.openjdk.org/loom/commit/b0f98df75aee1e94a8c4b3eb8d0b1f4e715011ae

8365416: java.desktop no longer needs preview feature access

Reviewed-by: alanb, jpai

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

Changeset: 26ccb3ce
Branch: master
Author:    Igor Veresov <iveresov at openjdk.org>
Date:      2025-08-14 16:59:05 +0000
URL:       https://git.openjdk.org/loom/commit/26ccb3cef17a7a2a4b09af1e1e29b96d54a418aa

8362530: VM crash with -XX:+PrintTieredEvents when collecting AOT profiling

Reviewed-by: chagedorn, kvn

! src/hotspot/share/compiler/compilationPolicy.cpp
! src/hotspot/share/compiler/compilationPolicy.hpp
! test/hotspot/jtreg/runtime/cds/appcds/aotFlags/AOTFlags.java

Changeset: ba231052
Branch: master
Author:    David Beaumont <david.beaumont at oracle.com>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-14 17:02:05 +0000
URL:       https://git.openjdk.org/loom/commit/ba231052319676ece5105253b58efa4e906feab4

8365048: idea.sh script does not correctly detect/handle git worktrees

Reviewed-by: shade, vyazici, erikj, mcimadamore, ihse

! bin/idea.sh

Changeset: dccca0fb
Branch: master
Author:    William Kemper <wkemper at openjdk.org>
Date:      2025-08-14 19:58:54 +0000
URL:       https://git.openjdk.org/loom/commit/dccca0fb7a892d31179b70fa861b8b3cdde54e84

8365572: Shenandoah: Remove unused thread local _paced_time field

Reviewed-by: shade

! src/hotspot/share/gc/shenandoah/shenandoahThreadLocalData.cpp
! src/hotspot/share/gc/shenandoah/shenandoahThreadLocalData.hpp

Changeset: c5cbcac8
Branch: master
Author:    Chen Liang <liach at openjdk.org>
Date:      2025-08-14 20:27:08 +0000
URL:       https://git.openjdk.org/loom/commit/c5cbcac828e1c7aa845cf16e68f6306ae49e050c

8361730: The CodeBuilder.trying(BlockCodeBuilder,CatchBuilder) method generates corrupted bytecode in certain cases

Reviewed-by: asotona

! src/java.base/share/classes/java/lang/classfile/CodeBuilder.java

Changeset: 8c363b3e
Branch: master
Author:    Chen Liang <liach at openjdk.org>
Date:      2025-08-14 21:41:14 +0000
URL:       https://git.openjdk.org/loom/commit/8c363b3e3e5c1273a5e9b3393ed09a31b0647a21

8364319: Move java.lang.constant.AsTypeMethodHandleDesc to jdk.internal

Reviewed-by: redestad

- src/java.base/share/classes/java/lang/constant/AsTypeMethodHandleDesc.java
! src/java.base/share/classes/java/lang/constant/ConstantDescs.java
! src/java.base/share/classes/java/lang/constant/MethodHandleDesc.java
+ src/java.base/share/classes/jdk/internal/constant/AsTypeMethodHandleDesc.java

Changeset: a65f2002
Branch: master
Author:    Vladimir Kozlov <kvn at openjdk.org>
Date:      2025-08-14 23:59:34 +0000
URL:       https://git.openjdk.org/loom/commit/a65f20022080e627da4782b9b643912a9dd69335

8365512: Replace -Xcomp with -Xmixed for AOT assembly phase

Reviewed-by: shade

! src/hotspot/share/cds/cdsConfig.cpp

Changeset: 44b19c01
Branch: master
Author:    David Beaumont <david.beaumont at oracle.com>
Committer: SendaoYan <syan at openjdk.org>
Date:      2025-08-15 02:53:42 +0000
URL:       https://git.openjdk.org/loom/commit/44b19c01acdfff07a4f017466be3f03fae6013c6

8365532: java/lang/module/ModuleReader/ModuleReaderTest.testImage fails

Reviewed-by: alanb

! src/java.base/share/classes/jdk/internal/module/SystemModuleFinders.java

Changeset: 6fb6f3d3
Branch: master
Author:    Chen Liang <liach at openjdk.org>
Date:      2025-08-15 04:25:37 +0000
URL:       https://git.openjdk.org/loom/commit/6fb6f3d39b321e2a1c1fa2cef2c19222a6dcf7b9

8361638: java.lang.classfile.CodeBuilder.CatchBuilder should not throw IllegalArgumentException for representable exception handlers

Reviewed-by: asotona

! src/java.base/share/classes/java/lang/classfile/CodeBuilder.java
! src/java.base/share/classes/java/lang/classfile/instruction/ExceptionCatch.java
! src/java.base/share/classes/jdk/internal/classfile/impl/CatchBuilderImpl.java
! test/jdk/jdk/classfile/BuilderTryCatchTest.java

Changeset: e3aeebec
Branch: master
Author:    Doug Simon <dnsimon at openjdk.org>
Date:      2025-08-15 07:35:52 +0000
URL:       https://git.openjdk.org/loom/commit/e3aeebec1798b9adbb02e11f285951d4275c52e8

8365468: EagerJVMCI should only apply to the CompilerBroker JVMCI runtime

Reviewed-by: never

! src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/hotspot/HotSpotJVMCIRuntime.java

Changeset: fa2eb616
Branch: master
Author:    Manuel H?ssig <mhaessig at openjdk.org>
Date:      2025-08-15 08:55:11 +0000
URL:       https://git.openjdk.org/loom/commit/fa2eb616482250dff6a3b667798aec37114005a9

8365491: VSCode IDE: add basic configuration for the Oracle Java extension

Reviewed-by: ihse, jlahoda

! make/ide/vscode/hotspot/template-workspace.jsonc

Changeset: 5856dc34
Branch: master
Author:    Markus Gr?nlund <mgronlun at openjdk.org>
Date:      2025-08-15 09:32:51 +0000
URL:       https://git.openjdk.org/loom/commit/5856dc34c82de9f840be1dc28a9917224971491f

8365199: Use a set instead of a list as the intermediary Klass* storage to reduce typeset processing

Reviewed-by: egahlin

! src/hotspot/share/jfr/leakprofiler/checkpoint/objectSampleCheckpoint.cpp
! src/hotspot/share/jfr/leakprofiler/sampling/objectSample.hpp
! src/hotspot/share/jfr/recorder/checkpoint/jfrMetadataEvent.cpp
! src/hotspot/share/jfr/recorder/checkpoint/jfrMetadataEvent.hpp
! src/hotspot/share/jfr/recorder/checkpoint/types/jfrTypeSet.cpp
! src/hotspot/share/jfr/recorder/checkpoint/types/jfrTypeSetUtils.cpp
! src/hotspot/share/jfr/recorder/checkpoint/types/jfrTypeSetUtils.hpp
! src/hotspot/share/jfr/recorder/service/jfrRecorderService.cpp
! src/hotspot/share/jfr/support/jfrKlassUnloading.cpp
! src/hotspot/share/jfr/utilities/jfrSet.hpp
! test/jdk/jdk/jfr/event/runtime/TestFlush.java

Changeset: b6d5f49b
Branch: master
Author:    Guanqiang Han <ghan at openjdk.org>
Committer: Matthias Baesken <mbaesken at openjdk.org>
Date:      2025-08-15 09:41:17 +0000
URL:       https://git.openjdk.org/loom/commit/b6d5f49b8dc2cb7c8e93d7885c2432a28d04e57e

8365296: Build failure with Clang due to -Wformat warning after JDK-8364611

Reviewed-by: ayang, mbaesken

! test/jdk/java/lang/ProcessBuilder/childSignalDisposition/exePrintSignalDisposition.c

Changeset: 059b49b9
Branch: master
Author:    Volkan Yazici <vyazici at openjdk.org>
Date:      2025-08-15 10:37:26 +0000
URL:       https://git.openjdk.org/loom/commit/059b49b9551ad52f211613a3da2ac0a79deb5ed4

8365244: Some test control variables are undocumented in doc/testing.md

Reviewed-by: erikj

! doc/testing.html
! doc/testing.md

Changeset: dbae90c9
Branch: master
Author:    Francesco Andreuzzi <andreuzzi.francesco at gmail.com>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-15 10:45:00 +0000
URL:       https://git.openjdk.org/loom/commit/dbae90c950200cb417aebeab65e5fce7a7e5f94f

8364723: Sort share/interpreter includes

Reviewed-by: shade, ayang

! src/hotspot/share/interpreter/abstractInterpreter.cpp
! src/hotspot/share/interpreter/bytecodeStream.cpp
! src/hotspot/share/interpreter/bytecodeTracer.cpp
! src/hotspot/share/interpreter/bytecodeUtils.cpp
! src/hotspot/share/interpreter/interpreter.cpp
! src/hotspot/share/interpreter/interpreterRuntime.cpp
! src/hotspot/share/interpreter/templateInterpreter.cpp
! src/hotspot/share/interpreter/templateInterpreterGenerator.cpp
! src/hotspot/share/interpreter/zero/bytecodeInterpreter.cpp
! src/hotspot/share/interpreter/zero/bytecodeInterpreter.inline.hpp
! src/hotspot/share/interpreter/zero/zeroInterpreterGenerator.hpp
! test/hotspot/jtreg/sources/TestIncludesAreSorted.java


From viktor.klang at oracle.com  Fri Aug 15 21:09:26 2025
From: viktor.klang at oracle.com (Viktor Klang)
Date: Fri, 15 Aug 2025 21:09:26 +0000
Subject: [External] : Re: My experience with Structured Concurrency
In-Reply-To: <CAA9v-_MZLT87wWoUVU0X5FmBCYd6xHt3juzibndB=ErfNTR8SA@mail.gmail.com>
References: <CAA9v-_Ncj6oyTM7A7V7yCt2zL-Lz89xrT1DTA9RG2hiGxo1Zpg@mail.gmail.com>
 <MW4PR10MB5774F4336B287D4B81C817E9FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>
 <CAA9v-_O9PEQPm2U6SLvQ11qwzYJW=HbW5orP_RMX-oBGVA9GqQ@mail.gmail.com>
 <CAA9v-_MZLT87wWoUVU0X5FmBCYd6xHt3juzibndB=ErfNTR8SA@mail.gmail.com>
Message-ID: <MW4PR10MB577407DD0C3D26B39AA82B25FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>

Hi David,

Thanks for the added detail, that really helps my understanding of your situation.

Did you try/consider/evaluate nested scopes (each with different Joiner strategies) over composing Joiners themselves?
And if you did, what were your findings when comparing those two different approaches?

Cheers,
?


Viktor Klang
Software Architect, Java Platform Group
Oracle
________________________________
From: David Alayachew <davidalayachew at gmail.com>
Sent: Friday, 15 August 2025 20:53
To: Viktor Klang <viktor.klang at oracle.com>
Cc: loom-dev <loom-dev at openjdk.org>
Subject: [External] : Re: My experience with Structured Concurrency

One other detail I'd like to highlight.

Much like Collectors and Gatherers, there are a handful of super useful ones that you use everywhere, and then the rest are ad-hoc, inline ones where you sort of just make your own to handle a custom scenario. If you use streams often, you will run into those frequently, and that's why those factory methods are fantastic.

Well, I have kind of found myself in the same position for Joiners. Joiners aren't as complex as Collectors and Gatherers, so there has certainly been less need for it. But I am also only a few weeks into using Joiners (though, I used STS for over a year). If I feel this strain now, then I feel like this experience is definitely worth sharing.

On Fri, Aug 15, 2025, 2:44?PM David Alayachew <davidalayachew at gmail.com<mailto:davidalayachew at gmail.com>> wrote:
Sure.

Long story short, the biggest reason why STS is so useful for me is because it allows me to fire off a bunch of requests, and handle their failures and outcomes centrally. That is the single most useful feature of this library for me. It's also why Future.status was not so useful for me -- it calls get under the hood, and therefore might fail! Handling that was too much scaffolding.

So, when someone recently challenged me to use Joiners (rather than the old STS preview versions I was used to), I started creating Joiners to handle all sorts of failure and outcomes. At first, a lot of them could be handled by the Joiner.awaitUntil(), where I would just check and see if the task failed, then handle the error. But as I got further and further along, I started needing to add state to my Joiners in order to get the failure handling that I wanted. For example, if a certain number of timeouts occur, cancel the scope. Well, that necessitates an AtomicNumber.

Then, as the error-handling got more and more complex, I started finding myself making a whole bunch of copy paste, minor variations of similar Joiners. Which isn't bad or wrong, but started to feel some strain. Now, I need to jump through an inheritance chain just to see what my Joiner is really doing. It wasn't so bad, but I did start to feel a little uneasy. Bad memories.

So, the solution to a problem like this is to create a Joiner factory. Which is essentially what I started to write before I started remembering how Collectors and Gatherers worked. At that point, I kind of realized that this is worth suggesting, which prompted me to write my original email.

Like I said, not a big deal if you don't give it to me -- I can just make my own.

But yes, that is the surrounding context behind that quote. Let me know if you need more details.


On Fri, Aug 15, 2025, 9:25?AM Viktor Klang <viktor.klang at oracle.com<mailto:viktor.klang at oracle.com>> wrote:
Hi David,

First of all?thank you for your feedback!

I'm curious to learn more about why you ended up in the situation you describe below, specifically about what use-cases led you into wishing for an augmentation to Joiner to facilitate composition.

Are you able to share more details?

>Which, funnily enough, led to a slightly different problem -- I found myself wanting an easier way to create Joiners. Since I was leaning on Joiners so much more heavily than I was for STS, I ended up creating many Joiners that do almost the same thing, with just minor variations. And inheritance wasn't always the right answer, as I can't inherit from multiple classes. Plus, most of my joiners were stateful, but I only wanted the non-stateful parts of it. I could do composition, but it sort of felt weird to delegate to multiple other Joiners.

Cheers,
?


Viktor Klang
Software Architect, Java Platform Group
Oracle
________________________________
From: loom-dev <loom-dev-retn at openjdk.org<mailto:loom-dev-retn at openjdk.org>> on behalf of David Alayachew <davidalayachew at gmail.com<mailto:davidalayachew at gmail.com>>
Sent: Friday, 15 August 2025 11:52
To: loom-dev <loom-dev at openjdk.org<mailto:loom-dev at openjdk.org>>
Subject: My experience with Structured Concurrency

Hello @loom-dev<mailto:loom-dev at openjdk.org>,

I just wanted to share my experience with Structured Concurrency. I had actually been using it for a while now, but only recently got experience with the new Joiner. After trying it out, my previously stated opinion has changed.

Overall, Structured Concurrency has been a pleasure. I'll avoid repeating ALL my old thoughts and just highlight the KEY details.

* Structured Concurrency is excellent for complex error-handling. Receiving exceptions via the subtask makes all the error-handling less painful.
* Structured Concurrency makes nesting scopes a breeze, a task I historically found very painful to do.
* Inheritance allows me to take an existing Scope (now Joiner), and modify only what I need to in order to modify it for my use case. Great for reusing old strategies in new ways.

Now for the new stuff -- having Joiner be the point of extension definitely proved to be the right move imo. I didn't mention this in my original message, but while it was easy to get a scope set up using inheritance, it wasn't always clear what invariants needed to be maintained. For example, the ensureOwnerAndJoined method. Was that something we needed to call when inheriting? On which methods? Just join()?

The Joiner solution is comparatively simpler, which actually meant that I ended up creating way more Joiners, rather than only several STS'. Joiners invariants are obvious, and there is no ambiguity on what is expected from the implementor.

Which, funnily enough, led to a slightly different problem -- I found myself wanting an easier way to create Joiners. Since I was leaning on Joiners so much more heavily than I was for STS, I ended up creating many Joiners that do almost the same thing, with just minor variations. And inheritance wasn't always the right answer, as I can't inherit from multiple classes. Plus, most of my joiners were stateful, but I only wanted the non-stateful parts of it. I could do composition, but it sort of felt weird to delegate to multiple other Joiners.

Part of me kept wondering how well a factory method, similar to the ones for Collectors and Gatherers, might fare for Joiners.

Regardless, even if we don't get that factory method, this library has been a pleasure, and I can't wait to properly implement this once it goes live.

Thank you for your time and consideration.
David Alayachew

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From davidalayachew at gmail.com  Sat Aug 16 00:04:00 2025
From: davidalayachew at gmail.com (David Alayachew)
Date: Fri, 15 Aug 2025 20:04:00 -0400
Subject: [External] : Re: My experience with Structured Concurrency
In-Reply-To: <MW4PR10MB577407DD0C3D26B39AA82B25FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>
References: <CAA9v-_Ncj6oyTM7A7V7yCt2zL-Lz89xrT1DTA9RG2hiGxo1Zpg@mail.gmail.com>
 <MW4PR10MB5774F4336B287D4B81C817E9FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>
 <CAA9v-_O9PEQPm2U6SLvQ11qwzYJW=HbW5orP_RMX-oBGVA9GqQ@mail.gmail.com>
 <CAA9v-_MZLT87wWoUVU0X5FmBCYd6xHt3juzibndB=ErfNTR8SA@mail.gmail.com>
 <MW4PR10MB577407DD0C3D26B39AA82B25FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>
Message-ID: <CAA9v-_MyeyAj_QFvEa+DSzeQmOPLqSHUpZcNDRiNRUzWs454Fg@mail.gmail.com>

Oh, I'm already doing that. Lol, I love STS BECAUSE nesting scopes is so
easy to do.

But that's an interesting idea. I kind of see what you mean -- maybe I am
stuffing too much logic into a single Joiner. I can't tell yet, so I guess
I'll just have to try it out and get back to you.

Thanks for the tip.


On Fri, Aug 15, 2025, 5:09?PM Viktor Klang <viktor.klang at oracle.com> wrote:

> Hi David,
>
> Thanks for the added detail, that really helps my understanding of your
> situation.
>
> Did you try/consider/evaluate nested scopes (each with different Joiner
> strategies) over composing Joiners themselves?
> And if you did, what were your findings when comparing those two different
> approaches?
>
> Cheers,
> ?
>
>
> *Viktor Klang*
> Software Architect, Java Platform Group
> Oracle
> ------------------------------
> *From:* David Alayachew <davidalayachew at gmail.com>
> *Sent:* Friday, 15 August 2025 20:53
> *To:* Viktor Klang <viktor.klang at oracle.com>
> *Cc:* loom-dev <loom-dev at openjdk.org>
> *Subject:* [External] : Re: My experience with Structured Concurrency
>
> One other detail I'd like to highlight.
>
> Much like Collectors and Gatherers, there are a handful of super useful
> ones that you use everywhere, and then the rest are ad-hoc, inline ones
> where you sort of just make your own to handle a custom scenario. If you
> use streams often, you will run into those frequently, and that's why those
> factory methods are fantastic.
>
> Well, I have kind of found myself in the same position for Joiners.
> Joiners aren't as complex as Collectors and Gatherers, so there has
> certainly been less need for it. But I am also only a few weeks into using
> Joiners (though, I used STS for over a year). If I feel this strain now,
> then I feel like this experience is definitely worth sharing.
>
> On Fri, Aug 15, 2025, 2:44?PM David Alayachew <davidalayachew at gmail.com>
> wrote:
>
> Sure.
>
> Long story short, the biggest reason why STS is so useful for me is
> because it allows me to fire off a bunch of requests, and handle their
> failures and outcomes centrally. That is the single most useful feature of
> this library for me. It's also why Future.status was not so useful for me
> -- it calls get under the hood, and therefore might fail! Handling that was
> too much scaffolding.
>
> So, when someone recently challenged me to use Joiners (rather than the
> old STS preview versions I was used to), I started creating Joiners to
> handle all sorts of failure and outcomes. At first, a lot of them could be
> handled by the Joiner.awaitUntil(), where I would just check and see if the
> task failed, then handle the error. But as I got further and further along,
> I started needing to add state to my Joiners in order to get the failure
> handling that I wanted. For example, if a certain number of timeouts occur,
> cancel the scope. Well, that necessitates an AtomicNumber.
>
> Then, as the error-handling got more and more complex, I started finding
> myself making a whole bunch of copy paste, minor variations of similar
> Joiners. Which isn't bad or wrong, but started to feel some strain. Now, I
> need to jump through an inheritance chain just to see what my Joiner is
> really doing. It wasn't so bad, but I did start to feel a little uneasy.
> Bad memories.
>
> So, the solution to a problem like this is to create a Joiner factory.
> Which is essentially what I started to write before I started remembering
> how Collectors and Gatherers worked. At that point, I kind of realized that
> this is worth suggesting, which prompted me to write my original email.
>
> Like I said, not a big deal if you don't give it to me -- I can just make
> my own.
>
> But yes, that is the surrounding context behind that quote. Let me know if
> you need more details.
>
>
> On Fri, Aug 15, 2025, 9:25?AM Viktor Klang <viktor.klang at oracle.com>
> wrote:
>
> Hi David,
>
> First of all?thank you for your feedback!
>
> I'm curious to learn more about why you ended up in the situation you
> describe below, specifically about what use-cases led you into wishing for
> an augmentation to Joiner to facilitate composition.
>
> Are you able to share more details?
>
> >Which, funnily enough, led to a slightly different problem -- I found
> myself wanting an easier way to create Joiners. Since I was leaning on
> Joiners so much more heavily than I was for STS, I ended up creating many
> Joiners that do almost the same thing, with just minor variations. And
> inheritance wasn't always the right answer, as I can't inherit from
> multiple classes. Plus, most of my joiners were stateful, but I only wanted
> the non-stateful parts of it. I could do composition, but it sort of felt
> weird to delegate to multiple other Joiners.
>
> Cheers,
> ?
>
>
> *Viktor Klang*
> Software Architect, Java Platform Group
> Oracle
> ------------------------------
> *From:* loom-dev <loom-dev-retn at openjdk.org> on behalf of David Alayachew
> <davidalayachew at gmail.com>
> *Sent:* Friday, 15 August 2025 11:52
> *To:* loom-dev <loom-dev at openjdk.org>
> *Subject:* My experience with Structured Concurrency
>
> Hello @loom-dev <loom-dev at openjdk.org>,
>
> I just wanted to share my experience with Structured Concurrency. I had
> actually been using it for a while now, but only recently got experience
> with the new Joiner. After trying it out, my previously stated opinion has
> changed.
>
> Overall, Structured Concurrency has been a pleasure. I'll avoid repeating
> ALL my old thoughts and just highlight the KEY details.
>
> * Structured Concurrency is excellent for complex error-handling.
> Receiving exceptions via the subtask makes all the error-handling less
> painful.
> * Structured Concurrency makes nesting scopes a breeze, a task I
> historically found very painful to do.
> * Inheritance allows me to take an existing Scope (now Joiner), and modify
> only what I need to in order to modify it for my use case. Great for
> reusing old strategies in new ways.
>
> Now for the new stuff -- having Joiner be the point of extension
> definitely proved to be the right move imo. I didn't mention this in my
> original message, but while it was easy to get a scope set up using
> inheritance, it wasn't always clear what invariants needed to be
> maintained. For example, the ensureOwnerAndJoined method. Was that
> something we needed to call when inheriting? On which methods? Just join()?
>
> The Joiner solution is comparatively simpler, which actually meant that I
> ended up creating way more Joiners, rather than only several STS'. Joiners
> invariants are obvious, and there is no ambiguity on what is expected from
> the implementor.
>
> Which, funnily enough, led to a slightly different problem -- I found
> myself wanting an easier way to create Joiners. Since I was leaning on
> Joiners so much more heavily than I was for STS, I ended up creating many
> Joiners that do almost the same thing, with just minor variations. And
> inheritance wasn't always the right answer, as I can't inherit from
> multiple classes. Plus, most of my joiners were stateful, but I only wanted
> the non-stateful parts of it. I could do composition, but it sort of felt
> weird to delegate to multiple other Joiners.
>
> Part of me kept wondering how well a factory method, similar to the ones
> for Collectors and Gatherers, might fare for Joiners.
>
> Regardless, even if we don't get that factory method, this library has
> been a pleasure, and I can't wait to properly implement this once it goes
> live.
>
> Thank you for your time and consideration.
> David Alayachew
>
>
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From alan.bateman at oracle.com  Sat Aug 16 08:52:57 2025
From: alan.bateman at oracle.com (Alan Bateman)
Date: Sat, 16 Aug 2025 09:52:57 +0100
Subject: My experience with Structured Concurrency
In-Reply-To: <CAA9v-_O9PEQPm2U6SLvQ11qwzYJW=HbW5orP_RMX-oBGVA9GqQ@mail.gmail.com>
References: <CAA9v-_Ncj6oyTM7A7V7yCt2zL-Lz89xrT1DTA9RG2hiGxo1Zpg@mail.gmail.com>
 <MW4PR10MB5774F4336B287D4B81C817E9FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>
 <CAA9v-_O9PEQPm2U6SLvQ11qwzYJW=HbW5orP_RMX-oBGVA9GqQ@mail.gmail.com>
Message-ID: <82b1331d-b33a-4f31-9621-059dc5db4791@oracle.com>

On 15/08/2025 19:44, David Alayachew wrote:
> :
>
> So, when someone recently challenged me to use Joiners (rather than 
> the old STS preview versions I was used to), I started creating 
> Joiners to handle all sorts of failure and outcomes. At first, a lot 
> of them could be handled by the Joiner.awaitUntil(), where I would 
> just check and see if the task failed, then handle the error. But as I 
> got further and further along, I started needing to add state to my 
> Joiners in order to get the failure handling that I wanted. For 
> example, if a certain number of timeouts occur, cancel the scope. 
> Well, that necessitates an AtomicNumber.
>
I assume you mean allUntil(Predicate), which is intended to make it easy 
to create a Joiner that implements a cancellation policy. Joiners are 
inherently stateful as many will accumulate results or exceptions, or 
maybe just count failures.? With allUntil then it does mean that the 
predicate may not be pure function, is that the reason for the 
hesitation? Beyond allUntil does mean implementing the Joiner interface. 
I think your mails are pondering whether there is something between 
allUntil and implementing Joiner yourself. I don't think we've had 
enough feedback to date to know if there is something needed there. One 
thing that would help is if your could enumerate a few of the Joiners 
that you implemented. I'm wondering if they are general purpose of very 
specific.

-Alan

From alan.bateman at oracle.com  Sat Aug 16 09:08:09 2025
From: alan.bateman at oracle.com (Alan Bateman)
Date: Sat, 16 Aug 2025 10:08:09 +0100
Subject: CFV: New loom Committer: Michael McMahon
In-Reply-To: <257385d6-0f24-4ecf-b9b0-12a93a1e10f6@oracle.com>
References: <257385d6-0f24-4ecf-b9b0-12a93a1e10f6@oracle.com>
Message-ID: <3eefd2a3-36cd-43f5-ac75-83cd01fa5de6@oracle.com>

Vote: yes

From davidalayachew at gmail.com  Sat Aug 16 19:23:20 2025
From: davidalayachew at gmail.com (David Alayachew)
Date: Sat, 16 Aug 2025 15:23:20 -0400
Subject: My experience with Structured Concurrency
In-Reply-To: <82b1331d-b33a-4f31-9621-059dc5db4791@oracle.com>
References: <CAA9v-_Ncj6oyTM7A7V7yCt2zL-Lz89xrT1DTA9RG2hiGxo1Zpg@mail.gmail.com>
 <MW4PR10MB5774F4336B287D4B81C817E9FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>
 <CAA9v-_O9PEQPm2U6SLvQ11qwzYJW=HbW5orP_RMX-oBGVA9GqQ@mail.gmail.com>
 <82b1331d-b33a-4f31-9621-059dc5db4791@oracle.com>
Message-ID: <CAA9v-_Pp9q+4TpjBmpKfDDtAZUnZyGXHn7xK1xa-Cob+68Z+dw@mail.gmail.com>

Hey Alan,

> I assume you mean allUntil(Predicate)

Whoops, yes.

> With allUntil then it does mean that the
> predicate may not be pure function

Mine was. It was basically just a Joiner.allUntil(t -> t.state() == FAILED
&& t.exception() instanceof SomeException).

Side note -- excited to see what Pattern-matching will bring to the Subtask
type specifically. Deconstructing it is something I will be doing a lot of.

But yes, if you are referring to once the allUntil became insufficient for
my needs, then yeah. I didn't like the idea of implementing multiple levels
of joiners, all with their own state. I could certainly make it work, but
that was my point with saying "bad memories" -- I remember how much work it
was making it work with inheritance in the past for separate contexts. And
I don't want to relive those bad memories. In general, I try to avoid too
many levels of inheritance with state.

> One thing that would help is if your
> could enumerate a few of the Joiners
> that you implemented. I'm wondering
> if they are general purpose of very
> specific.

Sure. Let me highlight 5 of them. Let me know if you need more examples --
I have about 30+ custom implementations.

1. A stateful Joiner<T, Optional<R>> that folds each success into an add()
on a builder for <R>. When add() returns false (has sufficient input), the
joiner cancels the scope. It returns an Optional of the constructed data
model.

2. A stateful Joiner<T, Stream<Subtask<T>>> that cancels the scope once I
hit X number of tasks that throw SomeException. It returns the tasks that
succeeded, plus those X failures.

3. A stateful Joiner<T, Optional<R>> that takes each successful result,
performs an RPC call using that result, then cancels the scope if the rpc
call is successful. It returns an Optional of the first successful rpc call.

4. A stateful Joiner<List<T>, Optional<R>> that, upon each successful
List<T>, recursively creates new scopes inside of the onComplete, with the
exit condition being that a list is empty. It then performs a reduce on the
returned scopes, bubbling up the call stack until it returns an Optional<R>

5. A stateful Joiner<T, Optional<T>> that cancels the scope on the first
success, but uses a Predicate<T> to determine a success. It returns an
Optional of the result.

Let me know if there is anything further that I can provide.

On Sat, Aug 16, 2025 at 4:53?AM Alan Bateman <alan.bateman at oracle.com>
wrote:

> On 15/08/2025 19:44, David Alayachew wrote:
> > :
> >
> > So, when someone recently challenged me to use Joiners (rather than
> > the old STS preview versions I was used to), I started creating
> > Joiners to handle all sorts of failure and outcomes. At first, a lot
> > of them could be handled by the Joiner.awaitUntil(), where I would
> > just check and see if the task failed, then handle the error. But as I
> > got further and further along, I started needing to add state to my
> > Joiners in order to get the failure handling that I wanted. For
> > example, if a certain number of timeouts occur, cancel the scope.
> > Well, that necessitates an AtomicNumber.
> >
> I assume you mean allUntil(Predicate), which is intended to make it easy
> to create a Joiner that implements a cancellation policy. Joiners are
> inherently stateful as many will accumulate results or exceptions, or
> maybe just count failures.  With allUntil then it does mean that the
> predicate may not be pure function, is that the reason for the
> hesitation? Beyond allUntil does mean implementing the Joiner interface.
> I think your mails are pondering whether there is something between
> allUntil and implementing Joiner yourself. I don't think we've had
> enough feedback to date to know if there is something needed there. One
> thing that would help is if your could enumerate a few of the Joiners
> that you implemented. I'm wondering if they are general purpose of very
> specific.
>
> -Alan
>
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From alan.bateman at oracle.com  Sun Aug 17 17:13:15 2025
From: alan.bateman at oracle.com (Alan Bateman)
Date: Sun, 17 Aug 2025 18:13:15 +0100
Subject: My experience with Structured Concurrency
In-Reply-To: <CAA9v-_Pp9q+4TpjBmpKfDDtAZUnZyGXHn7xK1xa-Cob+68Z+dw@mail.gmail.com>
References: <CAA9v-_Ncj6oyTM7A7V7yCt2zL-Lz89xrT1DTA9RG2hiGxo1Zpg@mail.gmail.com>
 <MW4PR10MB5774F4336B287D4B81C817E9FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>
 <CAA9v-_O9PEQPm2U6SLvQ11qwzYJW=HbW5orP_RMX-oBGVA9GqQ@mail.gmail.com>
 <82b1331d-b33a-4f31-9621-059dc5db4791@oracle.com>
 <CAA9v-_Pp9q+4TpjBmpKfDDtAZUnZyGXHn7xK1xa-Cob+68Z+dw@mail.gmail.com>
Message-ID: <cb39e3d3-c458-4a58-93b5-dafbfd9d4d6d@oracle.com>

On 16/08/2025 20:23, David Alayachew wrote:
> :
>
> Sure. Let me highlight 5 of them. Let me know if you need more 
> examples -- I have about 30+ custom implementations.

Thanks for sharing this selection.

I will guess that #1, #2, and #5 are relatively simpler Joiner 
implementations, is there really any benefit to use composition or 
inheritance here?

For #4 and #5 then its surprising that there is RPC or split/join in the 
onComplete method.? The onComplete method is called with the completed 
subtask and any exception/error executing onComplete isn't going to 
change the subtask status. Is there a reason you've chosen to put that 
code there rather than in the subtasks? (for his API then the question 
as to "where" to put code is a good discussion as it may not be always 
obvious whether to code should execute in the subtask, in the Joiner 
handling subtask completion, or in the main task in the processing after 
join.

-Alan
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From davidalayachew at gmail.com  Sun Aug 17 20:50:49 2025
From: davidalayachew at gmail.com (David Alayachew)
Date: Sun, 17 Aug 2025 16:50:49 -0400
Subject: [External] : Re: My experience with Structured Concurrency
In-Reply-To: <CAA9v-_MyeyAj_QFvEa+DSzeQmOPLqSHUpZcNDRiNRUzWs454Fg@mail.gmail.com>
References: <CAA9v-_Ncj6oyTM7A7V7yCt2zL-Lz89xrT1DTA9RG2hiGxo1Zpg@mail.gmail.com>
 <MW4PR10MB5774F4336B287D4B81C817E9FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>
 <CAA9v-_O9PEQPm2U6SLvQ11qwzYJW=HbW5orP_RMX-oBGVA9GqQ@mail.gmail.com>
 <CAA9v-_MZLT87wWoUVU0X5FmBCYd6xHt3juzibndB=ErfNTR8SA@mail.gmail.com>
 <MW4PR10MB577407DD0C3D26B39AA82B25FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>
 <CAA9v-_MyeyAj_QFvEa+DSzeQmOPLqSHUpZcNDRiNRUzWs454Fg@mail.gmail.com>
Message-ID: <CAA9v-_NL82+csYJSTSw=WzsZEG1De0q_p_aDqpQDNVVgWyJQVQ@mail.gmail.com>

Hey, I've been trying out your idea, but I can't find a single place where
doing it would apply.

I understand the idea of nesting scopes well enough. For example, I could
put a innerScope inside of a outerscope.fork() call. Alternatively, I could
have another scope after the outerScope.join() call.

But doing it the first way would mean that I am creating an entire scope
for each outerScope subtask. Is that what you are proposing? That makes
sense if there are multiple tasks worth of processing that I want. For
example, if the outerscope subtask would return a list of things, each of
which, I could do further processing on. But that doesn't make sense if
each outerScope subtask has only one "thing" that needs further downstream
processing. The entire point of a scope is to do multi-threading. Having
one task defeats the purpose of that.

And doing it the second way means I would have to wait for all of my tasks
to complete from the outerScope before the innerScope could do anything.

In both cases, I wouldn't really be able to gain anything for my composed
joiners.

And to be clear, most of my Joiner compositions were simply nesting and
adding to an existing implementation. For example, I had a joiner that
closed the scope after 3 counts of tasks failing with SomeException. Well,
I then used composition to make it cancel AND return the tasks up to and
including the 3 failed. In that case, I don't see how I would gain anything
by adding another scope.

Could you help me see what you had in mind? Maybe I am just lacking
creativity.




On Fri, Aug 15, 2025 at 8:04?PM David Alayachew <davidalayachew at gmail.com>
wrote:

> Oh, I'm already doing that. Lol, I love STS BECAUSE nesting scopes is so
> easy to do.
>
> But that's an interesting idea. I kind of see what you mean -- maybe I am
> stuffing too much logic into a single Joiner. I can't tell yet, so I guess
> I'll just have to try it out and get back to you.
>
> Thanks for the tip.
>
>
> On Fri, Aug 15, 2025, 5:09?PM Viktor Klang <viktor.klang at oracle.com>
> wrote:
>
>> Hi David,
>>
>> Thanks for the added detail, that really helps my understanding of your
>> situation.
>>
>> Did you try/consider/evaluate nested scopes (each with different Joiner
>> strategies) over composing Joiners themselves?
>> And if you did, what were your findings when comparing those two
>> different approaches?
>>
>> Cheers,
>> ?
>>
>>
>> *Viktor Klang*
>> Software Architect, Java Platform Group
>> Oracle
>> ------------------------------
>> *From:* David Alayachew <davidalayachew at gmail.com>
>> *Sent:* Friday, 15 August 2025 20:53
>> *To:* Viktor Klang <viktor.klang at oracle.com>
>> *Cc:* loom-dev <loom-dev at openjdk.org>
>> *Subject:* [External] : Re: My experience with Structured Concurrency
>>
>> One other detail I'd like to highlight.
>>
>> Much like Collectors and Gatherers, there are a handful of super useful
>> ones that you use everywhere, and then the rest are ad-hoc, inline ones
>> where you sort of just make your own to handle a custom scenario. If you
>> use streams often, you will run into those frequently, and that's why those
>> factory methods are fantastic.
>>
>> Well, I have kind of found myself in the same position for Joiners.
>> Joiners aren't as complex as Collectors and Gatherers, so there has
>> certainly been less need for it. But I am also only a few weeks into using
>> Joiners (though, I used STS for over a year). If I feel this strain now,
>> then I feel like this experience is definitely worth sharing.
>>
>> On Fri, Aug 15, 2025, 2:44?PM David Alayachew <davidalayachew at gmail.com>
>> wrote:
>>
>> Sure.
>>
>> Long story short, the biggest reason why STS is so useful for me is
>> because it allows me to fire off a bunch of requests, and handle their
>> failures and outcomes centrally. That is the single most useful feature of
>> this library for me. It's also why Future.status was not so useful for me
>> -- it calls get under the hood, and therefore might fail! Handling that was
>> too much scaffolding.
>>
>> So, when someone recently challenged me to use Joiners (rather than the
>> old STS preview versions I was used to), I started creating Joiners to
>> handle all sorts of failure and outcomes. At first, a lot of them could be
>> handled by the Joiner.awaitUntil(), where I would just check and see if the
>> task failed, then handle the error. But as I got further and further along,
>> I started needing to add state to my Joiners in order to get the failure
>> handling that I wanted. For example, if a certain number of timeouts occur,
>> cancel the scope. Well, that necessitates an AtomicNumber.
>>
>> Then, as the error-handling got more and more complex, I started finding
>> myself making a whole bunch of copy paste, minor variations of similar
>> Joiners. Which isn't bad or wrong, but started to feel some strain. Now, I
>> need to jump through an inheritance chain just to see what my Joiner is
>> really doing. It wasn't so bad, but I did start to feel a little uneasy.
>> Bad memories.
>>
>> So, the solution to a problem like this is to create a Joiner factory.
>> Which is essentially what I started to write before I started remembering
>> how Collectors and Gatherers worked. At that point, I kind of realized that
>> this is worth suggesting, which prompted me to write my original email.
>>
>> Like I said, not a big deal if you don't give it to me -- I can just make
>> my own.
>>
>> But yes, that is the surrounding context behind that quote. Let me know
>> if you need more details.
>>
>>
>> On Fri, Aug 15, 2025, 9:25?AM Viktor Klang <viktor.klang at oracle.com>
>> wrote:
>>
>> Hi David,
>>
>> First of all?thank you for your feedback!
>>
>> I'm curious to learn more about why you ended up in the situation you
>> describe below, specifically about what use-cases led you into wishing for
>> an augmentation to Joiner to facilitate composition.
>>
>> Are you able to share more details?
>>
>> >Which, funnily enough, led to a slightly different problem -- I found
>> myself wanting an easier way to create Joiners. Since I was leaning on
>> Joiners so much more heavily than I was for STS, I ended up creating many
>> Joiners that do almost the same thing, with just minor variations. And
>> inheritance wasn't always the right answer, as I can't inherit from
>> multiple classes. Plus, most of my joiners were stateful, but I only wanted
>> the non-stateful parts of it. I could do composition, but it sort of felt
>> weird to delegate to multiple other Joiners.
>>
>> Cheers,
>> ?
>>
>>
>> *Viktor Klang*
>> Software Architect, Java Platform Group
>> Oracle
>> ------------------------------
>> *From:* loom-dev <loom-dev-retn at openjdk.org> on behalf of David
>> Alayachew <davidalayachew at gmail.com>
>> *Sent:* Friday, 15 August 2025 11:52
>> *To:* loom-dev <loom-dev at openjdk.org>
>> *Subject:* My experience with Structured Concurrency
>>
>> Hello @loom-dev <loom-dev at openjdk.org>,
>>
>> I just wanted to share my experience with Structured Concurrency. I had
>> actually been using it for a while now, but only recently got experience
>> with the new Joiner. After trying it out, my previously stated opinion has
>> changed.
>>
>> Overall, Structured Concurrency has been a pleasure. I'll avoid repeating
>> ALL my old thoughts and just highlight the KEY details.
>>
>> * Structured Concurrency is excellent for complex error-handling.
>> Receiving exceptions via the subtask makes all the error-handling less
>> painful.
>> * Structured Concurrency makes nesting scopes a breeze, a task I
>> historically found very painful to do.
>> * Inheritance allows me to take an existing Scope (now Joiner), and
>> modify only what I need to in order to modify it for my use case. Great for
>> reusing old strategies in new ways.
>>
>> Now for the new stuff -- having Joiner be the point of extension
>> definitely proved to be the right move imo. I didn't mention this in my
>> original message, but while it was easy to get a scope set up using
>> inheritance, it wasn't always clear what invariants needed to be
>> maintained. For example, the ensureOwnerAndJoined method. Was that
>> something we needed to call when inheriting? On which methods? Just join()?
>>
>> The Joiner solution is comparatively simpler, which actually meant that I
>> ended up creating way more Joiners, rather than only several STS'. Joiners
>> invariants are obvious, and there is no ambiguity on what is expected from
>> the implementor.
>>
>> Which, funnily enough, led to a slightly different problem -- I found
>> myself wanting an easier way to create Joiners. Since I was leaning on
>> Joiners so much more heavily than I was for STS, I ended up creating many
>> Joiners that do almost the same thing, with just minor variations. And
>> inheritance wasn't always the right answer, as I can't inherit from
>> multiple classes. Plus, most of my joiners were stateful, but I only wanted
>> the non-stateful parts of it. I could do composition, but it sort of felt
>> weird to delegate to multiple other Joiners.
>>
>> Part of me kept wondering how well a factory method, similar to the ones
>> for Collectors and Gatherers, might fare for Joiners.
>>
>> Regardless, even if we don't get that factory method, this library has
>> been a pleasure, and I can't wait to properly implement this once it goes
>> live.
>>
>> Thank you for your time and consideration.
>> David Alayachew
>>
>>
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From davidalayachew at gmail.com  Sun Aug 17 21:00:29 2025
From: davidalayachew at gmail.com (David Alayachew)
Date: Sun, 17 Aug 2025 17:00:29 -0400
Subject: My experience with Structured Concurrency
In-Reply-To: <cb39e3d3-c458-4a58-93b5-dafbfd9d4d6d@oracle.com>
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 <MW4PR10MB5774F4336B287D4B81C817E9FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>
 <CAA9v-_O9PEQPm2U6SLvQ11qwzYJW=HbW5orP_RMX-oBGVA9GqQ@mail.gmail.com>
 <82b1331d-b33a-4f31-9621-059dc5db4791@oracle.com>
 <CAA9v-_Pp9q+4TpjBmpKfDDtAZUnZyGXHn7xK1xa-Cob+68Z+dw@mail.gmail.com>
 <cb39e3d3-c458-4a58-93b5-dafbfd9d4d6d@oracle.com>
Message-ID: <CAA9v-_M2Mr1KYk36bAzM5Drjtf6_ss7Ht1J27sQgjUAARJtgTg@mail.gmail.com>

> I will guess that #1, #2, and #5 are relatively
> simpler Joiner implementations, is there really
> any benefit to use composition or inheritance here?

Sorry, I have been unclear. Let me clarify.

Yes, it is not hard at all to implement #1, #2, and #5 at all. But I don't
have 5 joiners. I have well past 30 of them.

Most of my joiners are very similar to each other. The 5 I showed you are
most of the major "categories" of joiners I would make. But each category
would have many derivatives of it.

For example, #2 had a derivative that was the same, but for multiple
Exception types as opposed to just one. Another derivative of #2 would go
past a type test, and actually look at the fields of the Exception (like
HTTP Error Code). Yet another would go one level deep, in case the
exception was wrapped (like wrapping an HTTP Exception in a
RuntimeException).

So I started making a whole new class each time I wanted to do almost the
same thing. But you start to run out of names that accurately describe what
you are doing. And yeah, some joiners are going to be heavily reused, so it
makes sense for them to have a whole type (and maybe source file). But many
won't either.

Once I realized that I was making a bunch of the same thing with minor
variations, that's when I started thinking about inheritance and
composition. Sorry if I made it sound like that's what I first jumped to.
No, I thought about inheritance and composition because those are usually
the default answers to the question of "How do I do what T is doing, but
with a minor variation?"

But inheritance and composition didn't get me very far for these joiners,
which is what I was trying to say in my original email. Inheritance with
state is error-prone (from my experience). And composition meant that I was
making my code brittle. What if those methods I am depending upon need to
change?

So I went back to making each joiner be its own thing. In reality, most of
my custom Joiners were either a simple record implementing the Joiner, or
an anonymous class. Records are fine, but you start to run out of
reasonable names when you have 5 different records that do close to the
same thing. I kind of found a compromise by creating the record Joiner
inside the method itself that I am working in (or the class if other
methods need it too). That way, it's scoped off from the rest of the world.
But considering how many I was making, it felt like a clunky solution. I'm
fine peppering my code base with inlined records all over the place *as
long as those records don't have a body*. But once they do, it starts to
get annoying, and makes the code harder to read and skim.

>From there, I thought about making a factory. You know the rest of the
story.

> For #4 and #5 then its surprising that there is RPC
> or split/join in the onComplete method.  The
> onComplete method is called with the completed
> subtask and any exception/error executing
> onComplete isn't going to change the subtask
> status. Is there a reason you've chosen to put
> that code there rather than in the subtasks?

Yeah. Long story short, if that RPC call or the nested scope fails, well
the literal goal that I created this scope to do (contruct an object) has,
in effect, failed. That's grounds to just throw an exception and see if
someone upstream can handle it. Maybe a retry or something.

To me, it felt like I was keeping inline with what onComplete was trying to
do -- sort of be an AOP-like post-processing joinpoint. If the contents of
onComplete fails, well then the goal was unattainable anyways, so killing
the scope via thrown exception doesn't feel wrong. And the exception will
propagate, so it felt like I was following right along with how the spec
intended things to go. Granted, I certainly am marching on the edge here,
I'll concede that.

> (for his API then the question as to "where" to
> put code is a good discussion as it may not be
> always obvious whether to code should execute in
> the subtask, in the Joiner handling subtask
> completion, or in the main task in the processing
> after join.

I would love a short guide on what code to put in what place. This looks to
be a pretty integral API for handling a large number of tasks moving
forward, so I see value in it.


On Sun, Aug 17, 2025 at 1:13?PM Alan Bateman <alan.bateman at oracle.com>
wrote:

> On 16/08/2025 20:23, David Alayachew wrote:
>
> :
>
> Sure. Let me highlight 5 of them. Let me know if you need more examples --
> I have about 30+ custom implementations.
>
>
> Thanks for sharing this selection.
>
> I will guess that #1, #2, and #5 are relatively simpler Joiner
> implementations, is there really any benefit to use composition or
> inheritance here?
>
> For #4 and #5 then its surprising that there is RPC or split/join in the
> onComplete method.  The onComplete method is called with the completed
> subtask and any exception/error executing onComplete isn't going to change
> the subtask status. Is there a reason you've chosen to put that code there
> rather than in the subtasks? (for his API then the question as to "where"
> to put code is a good discussion as it may not be always obvious whether to
> code should execute in the subtask, in the Joiner handling subtask
> completion, or in the main task in the processing after join.
>
> -Alan
>
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From rengels at ix.netcom.com  Sun Aug 17 21:27:46 2025
From: rengels at ix.netcom.com (robert engels)
Date: Sun, 17 Aug 2025 16:27:46 -0500
Subject: My experience with Structured Concurrency
In-Reply-To: <CAA9v-_M2Mr1KYk36bAzM5Drjtf6_ss7Ht1J27sQgjUAARJtgTg@mail.gmail.com>
References: <CAA9v-_Ncj6oyTM7A7V7yCt2zL-Lz89xrT1DTA9RG2hiGxo1Zpg@mail.gmail.com>
 <MW4PR10MB5774F4336B287D4B81C817E9FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>
 <CAA9v-_O9PEQPm2U6SLvQ11qwzYJW=HbW5orP_RMX-oBGVA9GqQ@mail.gmail.com>
 <82b1331d-b33a-4f31-9621-059dc5db4791@oracle.com>
 <CAA9v-_Pp9q+4TpjBmpKfDDtAZUnZyGXHn7xK1xa-Cob+68Z+dw@mail.gmail.com>
 <cb39e3d3-c458-4a58-93b5-dafbfd9d4d6d@oracle.com>
 <CAA9v-_M2Mr1KYk36bAzM5Drjtf6_ss7Ht1J27sQgjUAARJtgTg@mail.gmail.com>
Message-ID: <9B8A55C2-DAFE-4828-9A8C-744BC8FF8BF1@ix.netcom.com>

Isn?t this a perfect use of an anonymous class with a base class?

> On Aug 17, 2025, at 4:00?PM, David Alayachew <davidalayachew at gmail.com> wrote:
> 
> > I will guess that #1, #2, and #5 are relatively 
> > simpler Joiner implementations, is there really
> > any benefit to use composition or inheritance here?
> 
> Sorry, I have been unclear. Let me clarify.
> 
> Yes, it is not hard at all to implement #1, #2, and #5 at all. But I don't have 5 joiners. I have well past 30 of them.
> 
> Most of my joiners are very similar to each other. The 5 I showed you are most of the major "categories" of joiners I would make. But each category would have many derivatives of it.
> 
> For example, #2 had a derivative that was the same, but for multiple Exception types as opposed to just one. Another derivative of #2 would go past a type test, and actually look at the fields of the Exception (like HTTP Error Code). Yet another would go one level deep, in case the exception was wrapped (like wrapping an HTTP Exception in a RuntimeException).
> 
> So I started making a whole new class each time I wanted to do almost the same thing. But you start to run out of names that accurately describe what you are doing. And yeah, some joiners are going to be heavily reused, so it makes sense for them to have a whole type (and maybe source file). But many won't either.
> 
> Once I realized that I was making a bunch of the same thing with minor variations, that's when I started thinking about inheritance and composition. Sorry if I made it sound like that's what I first jumped to. No, I thought about inheritance and composition because those are usually the default answers to the question of "How do I do what T is doing, but with a minor variation?"
> 
> But inheritance and composition didn't get me very far for these joiners, which is what I was trying to say in my original email. Inheritance with state is error-prone (from my experience). And composition meant that I was making my code brittle. What if those methods I am depending upon need to change?
> 
> So I went back to making each joiner be its own thing. In reality, most of my custom Joiners were either a simple record implementing the Joiner, or an anonymous class. Records are fine, but you start to run out of reasonable names when you have 5 different records that do close to the same thing. I kind of found a compromise by creating the record Joiner inside the method itself that I am working in (or the class if other methods need it too). That way, it's scoped off from the rest of the world. But considering how many I was making, it felt like a clunky solution. I'm fine peppering my code base with inlined records all over the place *as long as those records don't have a body*. But once they do, it starts to get annoying, and makes the code harder to read and skim.
> 
> From there, I thought about making a factory. You know the rest of the story.
> 
> > For #4 and #5 then its surprising that there is RPC
> > or split/join in the onComplete method.  The
> > onComplete method is called with the completed
> > subtask and any exception/error executing
> > onComplete isn't going to change the subtask
> > status. Is there a reason you've chosen to put
> > that code there rather than in the subtasks?
> 
> Yeah. Long story short, if that RPC call or the nested scope fails, well the literal goal that I created this scope to do (contruct an object) has, in effect, failed. That's grounds to just throw an exception and see if someone upstream can handle it. Maybe a retry or something.
> 
> To me, it felt like I was keeping inline with what onComplete was trying to do -- sort of be an AOP-like post-processing joinpoint. If the contents of onComplete fails, well then the goal was unattainable anyways, so killing the scope via thrown exception doesn't feel wrong. And the exception will propagate, so it felt like I was following right along with how the spec intended things to go. Granted, I certainly am marching on the edge here, I'll concede that.
> 
> > (for his API then the question as to "where" to
> > put code is a good discussion as it may not be
> > always obvious whether to code should execute in
> > the subtask, in the Joiner handling subtask
> > completion, or in the main task in the processing
> > after join.
> 
> I would love a short guide on what code to put in what place. This looks to be a pretty integral API for handling a large number of tasks moving forward, so I see value in it.
> 
> 
> On Sun, Aug 17, 2025 at 1:13?PM Alan Bateman <alan.bateman at oracle.com <mailto:alan.bateman at oracle.com>> wrote:
>> On 16/08/2025 20:23, David Alayachew wrote:
>>> :
>>> 
>>> Sure. Let me highlight 5 of them. Let me know if you need more examples -- I have about 30+ custom implementations.
>> 
>> Thanks for sharing this selection.
>> 
>> I will guess that #1, #2, and #5 are relatively simpler Joiner implementations, is there really any benefit to use composition or inheritance here?
>> 
>> For #4 and #5 then its surprising that there is RPC or split/join in the onComplete method.  The onComplete method is called with the completed subtask and any exception/error executing onComplete isn't going to change the subtask status. Is there a reason you've chosen to put that code there rather than in the subtasks? (for his API then the question as to "where" to put code is a good discussion as it may not be always obvious whether to code should execute in the subtask, in the Joiner handling subtask completion, or in the main task in the processing after join.
>> 
>> -Alan

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From davidalayachew at gmail.com  Sun Aug 17 21:46:35 2025
From: davidalayachew at gmail.com (David Alayachew)
Date: Sun, 17 Aug 2025 17:46:35 -0400
Subject: My experience with Structured Concurrency
In-Reply-To: <9B8A55C2-DAFE-4828-9A8C-744BC8FF8BF1@ix.netcom.com>
References: <CAA9v-_Ncj6oyTM7A7V7yCt2zL-Lz89xrT1DTA9RG2hiGxo1Zpg@mail.gmail.com>
 <MW4PR10MB5774F4336B287D4B81C817E9FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>
 <CAA9v-_O9PEQPm2U6SLvQ11qwzYJW=HbW5orP_RMX-oBGVA9GqQ@mail.gmail.com>
 <82b1331d-b33a-4f31-9621-059dc5db4791@oracle.com>
 <CAA9v-_Pp9q+4TpjBmpKfDDtAZUnZyGXHn7xK1xa-Cob+68Z+dw@mail.gmail.com>
 <cb39e3d3-c458-4a58-93b5-dafbfd9d4d6d@oracle.com>
 <CAA9v-_M2Mr1KYk36bAzM5Drjtf6_ss7Ht1J27sQgjUAARJtgTg@mail.gmail.com>
 <9B8A55C2-DAFE-4828-9A8C-744BC8FF8BF1@ix.netcom.com>
Message-ID: <CAA9v-_NK4HLiDTPBOm1YpabhG5ZdUWvZAd5gaFiAzCq3tQCYAQ@mail.gmail.com>

Can you give an example? I used Anonymous classes in my solutions, but most
of them were just based off of the Joiner interface.

I guess I could introduce some state into the abstract class, and then just
tweak it for my needs. And obviously, I'd need a new abstract class for
each "category" of joiner. Then from there, just implement it inline,
making each inline case cheaper. Is that what you are hinting to?

On Sun, Aug 17, 2025, 5:28?PM robert engels <rengels at ix.netcom.com> wrote:

> Isn?t this a perfect use of an anonymous class with a base class?
>
> On Aug 17, 2025, at 4:00?PM, David Alayachew <davidalayachew at gmail.com>
> wrote:
>
> > I will guess that #1, #2, and #5 are relatively
> > simpler Joiner implementations, is there really
> > any benefit to use composition or inheritance here?
>
> Sorry, I have been unclear. Let me clarify.
>
> Yes, it is not hard at all to implement #1, #2, and #5 at all. But I don't
> have 5 joiners. I have well past 30 of them.
>
> Most of my joiners are very similar to each other. The 5 I showed you are
> most of the major "categories" of joiners I would make. But each category
> would have many derivatives of it.
>
> For example, #2 had a derivative that was the same, but for multiple
> Exception types as opposed to just one. Another derivative of #2 would go
> past a type test, and actually look at the fields of the Exception (like
> HTTP Error Code). Yet another would go one level deep, in case the
> exception was wrapped (like wrapping an HTTP Exception in a
> RuntimeException).
>
> So I started making a whole new class each time I wanted to do almost the
> same thing. But you start to run out of names that accurately describe what
> you are doing. And yeah, some joiners are going to be heavily reused, so it
> makes sense for them to have a whole type (and maybe source file). But many
> won't either.
>
> Once I realized that I was making a bunch of the same thing with minor
> variations, that's when I started thinking about inheritance and
> composition. Sorry if I made it sound like that's what I first jumped to.
> No, I thought about inheritance and composition because those are usually
> the default answers to the question of "How do I do what T is doing, but
> with a minor variation?"
>
> But inheritance and composition didn't get me very far for these joiners,
> which is what I was trying to say in my original email. Inheritance with
> state is error-prone (from my experience). And composition meant that I was
> making my code brittle. What if those methods I am depending upon need to
> change?
>
> So I went back to making each joiner be its own thing. In reality, most of
> my custom Joiners were either a simple record implementing the Joiner, or
> an anonymous class. Records are fine, but you start to run out of
> reasonable names when you have 5 different records that do close to the
> same thing. I kind of found a compromise by creating the record Joiner
> inside the method itself that I am working in (or the class if other
> methods need it too). That way, it's scoped off from the rest of the world.
> But considering how many I was making, it felt like a clunky solution. I'm
> fine peppering my code base with inlined records all over the place *as
> long as those records don't have a body*. But once they do, it starts to
> get annoying, and makes the code harder to read and skim.
>
> From there, I thought about making a factory. You know the rest of the
> story.
>
> > For #4 and #5 then its surprising that there is RPC
> > or split/join in the onComplete method.  The
> > onComplete method is called with the completed
> > subtask and any exception/error executing
> > onComplete isn't going to change the subtask
> > status. Is there a reason you've chosen to put
> > that code there rather than in the subtasks?
>
> Yeah. Long story short, if that RPC call or the nested scope fails, well
> the literal goal that I created this scope to do (contruct an object) has,
> in effect, failed. That's grounds to just throw an exception and see if
> someone upstream can handle it. Maybe a retry or something.
>
> To me, it felt like I was keeping inline with what onComplete was trying
> to do -- sort of be an AOP-like post-processing joinpoint. If the contents
> of onComplete fails, well then the goal was unattainable anyways, so
> killing the scope via thrown exception doesn't feel wrong. And the
> exception will propagate, so it felt like I was following right along with
> how the spec intended things to go. Granted, I certainly am marching on the
> edge here, I'll concede that.
>
> > (for his API then the question as to "where" to
> > put code is a good discussion as it may not be
> > always obvious whether to code should execute in
> > the subtask, in the Joiner handling subtask
> > completion, or in the main task in the processing
> > after join.
>
> I would love a short guide on what code to put in what place. This looks
> to be a pretty integral API for handling a large number of tasks moving
> forward, so I see value in it.
>
>
> On Sun, Aug 17, 2025 at 1:13?PM Alan Bateman <alan.bateman at oracle.com>
> wrote:
>
>> On 16/08/2025 20:23, David Alayachew wrote:
>>
>> :
>>
>> Sure. Let me highlight 5 of them. Let me know if you need more examples
>> -- I have about 30+ custom implementations.
>>
>>
>> Thanks for sharing this selection.
>>
>> I will guess that #1, #2, and #5 are relatively simpler Joiner
>> implementations, is there really any benefit to use composition or
>> inheritance here?
>>
>> For #4 and #5 then its surprising that there is RPC or split/join in the
>> onComplete method.  The onComplete method is called with the completed
>> subtask and any exception/error executing onComplete isn't going to change
>> the subtask status. Is there a reason you've chosen to put that code there
>> rather than in the subtasks? (for his API then the question as to "where"
>> to put code is a good discussion as it may not be always obvious whether to
>> code should execute in the subtask, in the Joiner handling subtask
>> completion, or in the main task in the processing after join.
>>
>> -Alan
>>
>
>
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From rengels at ix.netcom.com  Sun Aug 17 22:19:40 2025
From: rengels at ix.netcom.com (robert engels)
Date: Sun, 17 Aug 2025 17:19:40 -0500
Subject: My experience with Structured Concurrency
In-Reply-To: <CAA9v-_NK4HLiDTPBOm1YpabhG5ZdUWvZAd5gaFiAzCq3tQCYAQ@mail.gmail.com>
References: <CAA9v-_Ncj6oyTM7A7V7yCt2zL-Lz89xrT1DTA9RG2hiGxo1Zpg@mail.gmail.com>
 <MW4PR10MB5774F4336B287D4B81C817E9FF34A@MW4PR10MB5774.namprd10.prod.outlook.com>
 <CAA9v-_O9PEQPm2U6SLvQ11qwzYJW=HbW5orP_RMX-oBGVA9GqQ@mail.gmail.com>
 <82b1331d-b33a-4f31-9621-059dc5db4791@oracle.com>
 <CAA9v-_Pp9q+4TpjBmpKfDDtAZUnZyGXHn7xK1xa-Cob+68Z+dw@mail.gmail.com>
 <cb39e3d3-c458-4a58-93b5-dafbfd9d4d6d@oracle.com>
 <CAA9v-_M2Mr1KYk36bAzM5Drjtf6_ss7Ht1J27sQgjUAARJtgTg@mail.gmail.com>
 <9B8A55C2-DAFE-4828-9A8C-744BC8FF8BF1@ix.netcom.com>
 <CAA9v-_NK4HLiDTPBOm1YpabhG5ZdUWvZAd5gaFiAzCq3tQCYAQ@mail.gmail.com>
Message-ID: <F1EB1B94-5B28-4CB6-8217-5D75423E3BF0@ix.netcom.com>

Exactly, in my experience if you are creating lots of classes with slight differences you are not only missing an opportunity for DRY, but you are increasing the cognitive load substantially - i.e. understanding the code base (without lots of jumping around).

I haven?t dug deep into your use case, but it sounds like an XXXErrorHandler(s) based anonymous class(es) with properly defined extensions/callbacks would allow a code reader at the site to see the specialized handling these requests take - rather than trying to name all of the scenarios and then have to understand them and remember what all of them mean.

It does make testing a bit different - but I may be an outlier here - and I think more black box testing is beneficial anyway - rather than trying to test each handling implementation (if the interfaces/bases are properly designed, the extension code should be trivial and hard to mess up).

> On Aug 17, 2025, at 4:46?PM, David Alayachew <davidalayachew at gmail.com> wrote:
> 
> Can you give an example? I used Anonymous classes in my solutions, but most of them were just based off of the Joiner interface.
> 
> I guess I could introduce some state into the abstract class, and then just tweak it for my needs. And obviously, I'd need a new abstract class for each "category" of joiner. Then from there, just implement it inline, making each inline case cheaper. Is that what you are hinting to?
> 
> On Sun, Aug 17, 2025, 5:28?PM robert engels <rengels at ix.netcom.com <mailto:rengels at ix.netcom.com>> wrote:
>> Isn?t this a perfect use of an anonymous class with a base class?
>> 
>>> On Aug 17, 2025, at 4:00?PM, David Alayachew <davidalayachew at gmail.com <mailto:davidalayachew at gmail.com>> wrote:
>>> 
>>> > I will guess that #1, #2, and #5 are relatively 
>>> > simpler Joiner implementations, is there really
>>> > any benefit to use composition or inheritance here?
>>> 
>>> Sorry, I have been unclear. Let me clarify.
>>> 
>>> Yes, it is not hard at all to implement #1, #2, and #5 at all. But I don't have 5 joiners. I have well past 30 of them.
>>> 
>>> Most of my joiners are very similar to each other. The 5 I showed you are most of the major "categories" of joiners I would make. But each category would have many derivatives of it.
>>> 
>>> For example, #2 had a derivative that was the same, but for multiple Exception types as opposed to just one. Another derivative of #2 would go past a type test, and actually look at the fields of the Exception (like HTTP Error Code). Yet another would go one level deep, in case the exception was wrapped (like wrapping an HTTP Exception in a RuntimeException).
>>> 
>>> So I started making a whole new class each time I wanted to do almost the same thing. But you start to run out of names that accurately describe what you are doing. And yeah, some joiners are going to be heavily reused, so it makes sense for them to have a whole type (and maybe source file). But many won't either.
>>> 
>>> Once I realized that I was making a bunch of the same thing with minor variations, that's when I started thinking about inheritance and composition. Sorry if I made it sound like that's what I first jumped to. No, I thought about inheritance and composition because those are usually the default answers to the question of "How do I do what T is doing, but with a minor variation?"
>>> 
>>> But inheritance and composition didn't get me very far for these joiners, which is what I was trying to say in my original email. Inheritance with state is error-prone (from my experience). And composition meant that I was making my code brittle. What if those methods I am depending upon need to change?
>>> 
>>> So I went back to making each joiner be its own thing. In reality, most of my custom Joiners were either a simple record implementing the Joiner, or an anonymous class. Records are fine, but you start to run out of reasonable names when you have 5 different records that do close to the same thing. I kind of found a compromise by creating the record Joiner inside the method itself that I am working in (or the class if other methods need it too). That way, it's scoped off from the rest of the world. But considering how many I was making, it felt like a clunky solution. I'm fine peppering my code base with inlined records all over the place *as long as those records don't have a body*. But once they do, it starts to get annoying, and makes the code harder to read and skim.
>>> 
>>> From there, I thought about making a factory. You know the rest of the story.
>>> 
>>> > For #4 and #5 then its surprising that there is RPC
>>> > or split/join in the onComplete method.  The
>>> > onComplete method is called with the completed
>>> > subtask and any exception/error executing
>>> > onComplete isn't going to change the subtask
>>> > status. Is there a reason you've chosen to put
>>> > that code there rather than in the subtasks?
>>> 
>>> Yeah. Long story short, if that RPC call or the nested scope fails, well the literal goal that I created this scope to do (contruct an object) has, in effect, failed. That's grounds to just throw an exception and see if someone upstream can handle it. Maybe a retry or something.
>>> 
>>> To me, it felt like I was keeping inline with what onComplete was trying to do -- sort of be an AOP-like post-processing joinpoint. If the contents of onComplete fails, well then the goal was unattainable anyways, so killing the scope via thrown exception doesn't feel wrong. And the exception will propagate, so it felt like I was following right along with how the spec intended things to go. Granted, I certainly am marching on the edge here, I'll concede that.
>>> 
>>> > (for his API then the question as to "where" to
>>> > put code is a good discussion as it may not be
>>> > always obvious whether to code should execute in
>>> > the subtask, in the Joiner handling subtask
>>> > completion, or in the main task in the processing
>>> > after join.
>>> 
>>> I would love a short guide on what code to put in what place. This looks to be a pretty integral API for handling a large number of tasks moving forward, so I see value in it.
>>> 
>>> 
>>> On Sun, Aug 17, 2025 at 1:13?PM Alan Bateman <alan.bateman at oracle.com <mailto:alan.bateman at oracle.com>> wrote:
>>>> On 16/08/2025 20:23, David Alayachew wrote:
>>>>> :
>>>>> 
>>>>> Sure. Let me highlight 5 of them. Let me know if you need more examples -- I have about 30+ custom implementations.
>>>> 
>>>> Thanks for sharing this selection.
>>>> 
>>>> I will guess that #1, #2, and #5 are relatively simpler Joiner implementations, is there really any benefit to use composition or inheritance here?
>>>> 
>>>> For #4 and #5 then its surprising that there is RPC or split/join in the onComplete method.  The onComplete method is called with the completed subtask and any exception/error executing onComplete isn't going to change the subtask status. Is there a reason you've chosen to put that code there rather than in the subtasks? (for his API then the question as to "where" to put code is a good discussion as it may not be always obvious whether to code should execute in the subtask, in the Joiner handling subtask completion, or in the main task in the processing after join.
>>>> 
>>>> -Alan
>> 

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