From martinrb at google.com  Wed Apr  1 02:17:29 2020
From: martinrb at google.com (Martin Buchholz)
Date: Tue, 31 Mar 2020 19:17:29 -0700
Subject: Conflicts exist if move to jdk14
In-Reply-To: <CA+w6HxYydnJ2qd+m_78uBET-LVtmnhwm0=kYRKYmrBHpfzoiiA@mail.gmail.com>
References: <HE1PR0801MB164304C9D4D22EE99CDE1A2A8ECC0@HE1PR0801MB1643.eurprd08.prod.outlook.com>
 <CAPW48soODuJUSi1CJ4qW7CS=GGkJ+vF_khDcfNxzFaD5g=-w4A@mail.gmail.com>
 <HE1PR0801MB1643866774E5111CE46A38428EC80@HE1PR0801MB1643.eurprd08.prod.outlook.com>
 <CAPW48spgEr9vJOCLqa8o0_q1fM_78EsAeJUh_q3U4p3z4E_fEA@mail.gmail.com>
 <CA+w6HxZ-uht9XzeUC4qqsUL-FVZrqzvt-DzT+qdfEybwAsx6nQ@mail.gmail.com>
 <CA+w6HxYydnJ2qd+m_78uBET-LVtmnhwm0=kYRKYmrBHpfzoiiA@mail.gmail.com>
Message-ID: <CA+kOe08q5DpU_YLHHFaiyv+-mRTMnyEE-nThP4akf65-S6_y6w@mail.gmail.com>

I don't know of any good answers for this fundamental engineering problem
For private use, I like to maintain a stack of patches and rebase them all
the time, and e.g. fig supports that.
But you can't do that with shared branches/repos - you'll break all your
users.
The problem with merges is that any actual work done to resolve conflicts
is not managed, and is a needle in the haystack of changes being merged.

On Tue, Mar 31, 2020 at 11:40 AM Man Cao <manc at google.com> wrote:

> I also looked at how other projects (portola and shenandoah) handle this.
> Unlike tsan and loom, which maintain separate development branches,
> both portola and shenandoah just maintain a single "default" branch. They
> also have separate repositories for JDK11, JDK12, etc.
> They also do regular "Merge" commits to sync with jdk/jdk in the master
> development repository.
> So I think we should go with "hg merge". Mercurial should be able to
> differentiate commits between the tsan and jdk/jdk. The "tsan" branch in
> our repository would help separate out the changes further.
>
> I guess the main problem with "hg rebase" is that it generates a whole new
> set of changeset IDs (hashes). We don't want to change the IDs for
> changesets that have already been pushed.
>
> Any more concerns before I try a merge with jdk14-ga?
>
> -Man
>

From Jie.He at arm.com  Wed Apr  1 06:51:47 2020
From: Jie.He at arm.com (Jie He)
Date: Wed, 1 Apr 2020 06:51:47 +0000
Subject: Conflicts exist if move to jdk14
In-Reply-To: <CA+w6HxYydnJ2qd+m_78uBET-LVtmnhwm0=kYRKYmrBHpfzoiiA@mail.gmail.com>
References: <HE1PR0801MB164304C9D4D22EE99CDE1A2A8ECC0@HE1PR0801MB1643.eurprd08.prod.outlook.com>
 <CAPW48soODuJUSi1CJ4qW7CS=GGkJ+vF_khDcfNxzFaD5g=-w4A@mail.gmail.com>
 <HE1PR0801MB1643866774E5111CE46A38428EC80@HE1PR0801MB1643.eurprd08.prod.outlook.com>
 <CAPW48spgEr9vJOCLqa8o0_q1fM_78EsAeJUh_q3U4p3z4E_fEA@mail.gmail.com>
 <CA+w6HxZ-uht9XzeUC4qqsUL-FVZrqzvt-DzT+qdfEybwAsx6nQ@mail.gmail.com>
 <CA+w6HxYydnJ2qd+m_78uBET-LVtmnhwm0=kYRKYmrBHpfzoiiA@mail.gmail.com>
Message-ID: <HE1PR0801MB1643037DF9E2B1FF637A9C468EC90@HE1PR0801MB1643.eurprd08.prod.outlook.com>

Yes, it?s better if you can do that. As you said, I have no permission.

I tried the rebase just for knowing how much risk here.

From: Man Cao <manc at google.com>
Sent: Wednesday, April 1, 2020 2:40 AM
To: tsan-dev at openjdk.java.net
Cc: nd <nd at arm.com>; Arthur Eubanks <aeubanks at google.com>; Jie He <Jie.He at arm.com>
Subject: Re: Conflicts exist if move to jdk14

I also looked at how other projects (portola and shenandoah) handle this.
Unlike tsan and loom, which maintain separate development branches, both portola and shenandoah just maintain a single "default" branch. They also have separate repositories for JDK11, JDK12, etc.
They also do regular "Merge" commits to sync with jdk/jdk in the master development repository.
So I think we should go with "hg merge". Mercurial should be able to differentiate commits between the tsan and jdk/jdk. The "tsan" branch in our repository would help separate out the changes further.

I guess the main problem with "hg rebase" is that it generates a whole new set of changeset IDs (hashes). We don't want to change the IDs for changesets that have already been pushed.

Any more concerns before I try a merge with jdk14-ga?

-Man

From rwestberg at openjdk.java.net  Thu Apr  2 12:25:02 2020
From: rwestberg at openjdk.java.net (Robin Westberg)
Date: Thu, 2 Apr 2020 12:25:02 GMT
Subject: RFR: 8242037: Update jcheck configuration for tsan
Message-ID: <JXmZ63i6EW5guuMn7tCyo20duzRcWqsIKVt87fAKQCk=.fe4a81a3-aca7-4c5f-844d-3b9e39b67d4a@github.com>

Hi all,

Please review this change that adds an initial jcheck configuration for use with Skara tooling.

Best regards,
Robin

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

Commit messages:
 - Initial jcheck configuration

Changes: https://git.openjdk.java.net/tsan/pull/1/files
 Webrev: https://webrevs.openjdk.java.net/tsan/1/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8242037
  Stats: 37 lines in 1 file changed: 35 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/tsan/pull/1.diff
  Fetch: git fetch https://git.openjdk.java.net/tsan pull/1/head:pull/1

PR: https://git.openjdk.java.net/tsan/pull/1

From ehelin at openjdk.java.net  Thu Apr  2 12:29:22 2020
From: ehelin at openjdk.java.net (Erik Helin)
Date: Thu, 2 Apr 2020 12:29:22 GMT
Subject: RFR: 8242037: Update jcheck configuration for tsan
In-Reply-To: <JXmZ63i6EW5guuMn7tCyo20duzRcWqsIKVt87fAKQCk=.fe4a81a3-aca7-4c5f-844d-3b9e39b67d4a@github.com>
References: <JXmZ63i6EW5guuMn7tCyo20duzRcWqsIKVt87fAKQCk=.fe4a81a3-aca7-4c5f-844d-3b9e39b67d4a@github.com>
Message-ID: <YC7IGaMNwzO8lW5IcnxhHac0bp_7pbSft6WkdhfmIPg=.ba6a4aa1-fdc3-4362-883d-e750003d9873@github.com>

On Thu, 2 Apr 2020 11:34:35 GMT, Robin Westberg <rwestberg at openjdk.org> wrote:

> Hi all,
> 
> Please review this change that adds an initial jcheck configuration for use with Skara tooling.
> 
> Best regards,
> Robin

Looks good!

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

Marked as reviewed by ehelin (Reviewer).

PR: https://git.openjdk.java.net/tsan/pull/1

From rwestberg at openjdk.java.net  Thu Apr  2 12:29:22 2020
From: rwestberg at openjdk.java.net (Robin Westberg)
Date: Thu, 2 Apr 2020 12:29:22 GMT
Subject: RFR: 8242037: Update jcheck configuration for tsan
In-Reply-To: <YC7IGaMNwzO8lW5IcnxhHac0bp_7pbSft6WkdhfmIPg=.ba6a4aa1-fdc3-4362-883d-e750003d9873@github.com>
References: <JXmZ63i6EW5guuMn7tCyo20duzRcWqsIKVt87fAKQCk=.fe4a81a3-aca7-4c5f-844d-3b9e39b67d4a@github.com>
 <YC7IGaMNwzO8lW5IcnxhHac0bp_7pbSft6WkdhfmIPg=.ba6a4aa1-fdc3-4362-883d-e750003d9873@github.com>
Message-ID: <K4xD4aIzbrUD1BsNRNrGoFCmOt_BCaafx_5T_3YDhXo=.e1b5cfac-d0fe-4bf6-bfa7-ced01c06cb62@github.com>

On Thu, 2 Apr 2020 12:25:52 GMT, Erik Helin <ehelin at openjdk.org> wrote:

>> Hi all,
>> 
>> Please review this change that adds an initial jcheck configuration for use with Skara tooling.
>> 
>> Best regards,
>> Robin
>
> Looks good!

Thanks for reviewing!

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

PR: https://git.openjdk.java.net/tsan/pull/1

From rwestberg at openjdk.java.net  Thu Apr  2 12:34:04 2020
From: rwestberg at openjdk.java.net (Robin Westberg)
Date: Thu, 2 Apr 2020 12:34:04 GMT
Subject: [Integrated] RFR: 8242037: Update jcheck configuration for tsan
In-Reply-To: <JXmZ63i6EW5guuMn7tCyo20duzRcWqsIKVt87fAKQCk=.fe4a81a3-aca7-4c5f-844d-3b9e39b67d4a@github.com>
References: <JXmZ63i6EW5guuMn7tCyo20duzRcWqsIKVt87fAKQCk=.fe4a81a3-aca7-4c5f-844d-3b9e39b67d4a@github.com>
Message-ID: <019edd2b-fc04-4b2d-a62d-86da5096fd85@openjdk.org>

Changeset: 44c4c3cb
Author:    Robin Westberg <rwestberg at openjdk.org>
Date:      2020-04-02 12:33:09 +0000
URL:       https://git.openjdk.java.net/tsan/commit/44c4c3cb

8242037: Update jcheck configuration for tsan

Reviewed-by: ehelin

! .jcheck/conf

From jcbeyler at google.com  Fri Apr  3 22:26:09 2020
From: jcbeyler at google.com (Jean Christophe Beyler)
Date: Fri, 3 Apr 2020 15:26:09 -0700
Subject: Tsan project transition towards Git, GitHub, and Skara
In-Reply-To: <CAF9BGBwdyyGXBjdP35rfVKmBP8e3sEwDa16JDy4rX4dCmsCerg@mail.gmail.com>
References: <CAF9BGBwdyyGXBjdP35rfVKmBP8e3sEwDa16JDy4rX4dCmsCerg@mail.gmail.com>
Message-ID: <CAF9BGBy2VQ5jiPg63+kNYp1g6BDinCyKafZ9G9-OTpzHeqXXcQ@mail.gmail.com>

Hi all,

This transition is now done! If you have any questions about it or how to
now contribute, let us know!

Thanks to the Skara team for making this so easy :)
Jc

On Fri, Mar 27, 2020 at 1:54 PM Jean Christophe Beyler <jcbeyler at google.com>
wrote:

> Hi all,
>
> You might have heard that there is an OpenJDK project named Skara
> evaluating and trialing using Git for OpenJDK and GitHub for hosting the
> repositories [1]. We have been asked to try out Git, GitHub and the
> Skara tooling, as a means of validating, and to provide feedback about
> the Project Skara effort. There are already a number of OpenJDK projects
> using Git, GitHub and Skara:
> - Loom
> - Panama
> - Valhalla
> - Metropolis
> - Portola
> - Lanai
> - OpenJFX
> - OpenJMC
>
> A transition entails switching to Git as an SCM [2], and the repository
> would be hosted on GitHub [3]. After the transition, the current
> Mercurial repository would no longer be updated. There is already a
> read-only mirror of Tsan in place [4], you can it use to try out Git and
> some of the tooling, though submitting pull requests and pushing will
> not work (as it is a read-only mirror).
>
> I suggest that project Tsan transition to Git, GitHub and Skara and that
> we set the target date for the transition to April 2. I also suggest we
> adopt GitHub's pull request workflow together with the bots from project
> Skara.
>
> Adopting pull requests and the Skara bots means that the review process
> would work partly through GitHub. In particular, all changes must start
> out as pull requests. Skara automatically generates webrevs, "RFR"
> emails and supports bi-directional syncing between mailing lists and
> GitHub for those that prefer using webrev and the mailing lists. If you
> are unfamiliar with GitHub and pull requests, I suggest checking out
> GitHub's guide [5]. Note that project Skara also provides CLI tools for
> interacting with GitHub for those that prefer working from a terminal.
> You can find more info about these tools on the Skara wiki page [6].
>
> If you have any comments or questions regarding this transition, please
> reply to this thread.
>
> Thanks,
> Jc
>
> [1] : https://openjdk.java.net/jeps/369
> [2] : https://git-scm.com/
> [3] : https://github.com/
> [4] : https://github.com/openjdk/tsan
> [5] : https://guides.github.com/introduction/flow/
> [6] : https://wiki.openjdk.java.net/display/SKARA/Skara
>


-- 

Thanks,
Jc

From manc at google.com  Fri Apr 10 19:41:48 2020
From: manc at google.com (Man Cao)
Date: Fri, 10 Apr 2020 12:41:48 -0700
Subject: Conflicts exist if move to jdk14
In-Reply-To: <HE1PR0801MB1643037DF9E2B1FF637A9C468EC90@HE1PR0801MB1643.eurprd08.prod.outlook.com>
References: <HE1PR0801MB164304C9D4D22EE99CDE1A2A8ECC0@HE1PR0801MB1643.eurprd08.prod.outlook.com>
 <CAPW48soODuJUSi1CJ4qW7CS=GGkJ+vF_khDcfNxzFaD5g=-w4A@mail.gmail.com>
 <HE1PR0801MB1643866774E5111CE46A38428EC80@HE1PR0801MB1643.eurprd08.prod.outlook.com>
 <CAPW48spgEr9vJOCLqa8o0_q1fM_78EsAeJUh_q3U4p3z4E_fEA@mail.gmail.com>
 <CA+w6HxZ-uht9XzeUC4qqsUL-FVZrqzvt-DzT+qdfEybwAsx6nQ@mail.gmail.com>
 <CA+w6HxYydnJ2qd+m_78uBET-LVtmnhwm0=kYRKYmrBHpfzoiiA@mail.gmail.com>
 <HE1PR0801MB1643037DF9E2B1FF637A9C468EC90@HE1PR0801MB1643.eurprd08.prod.outlook.com>
Message-ID: <CA+w6HxZr1+A-8Tob1WE-RNnjeAU9rEQCGLb7C_q7x+FcaYcCDQ@mail.gmail.com>

Update: I'm in the process of rebasing/merging to JDK tip on the TSAN repo
on github <https://github.com/openjdk/tsan>.
My first step is to merge till this commit
<https://github.com/openjdk/tsan/commit/952f32e3755f385315e67de454eeba7a20e2f8a1>,
because there is a later change for
https://bugs.openjdk.java.net/browse/JDK-8239450 that introduced a whole
lot of conflicts with TSAN's make rules.
I prefer dealing with those make-rule conflicts separately later.

Currently I resolved all conflicts and it can build with fastdebug.
However, there are a few test failures under fastdebug. Particularly
NonRacyGarbageCollectionLoopTest.java triggers an assertion failure:
#  Internal Error
(/usr/local/google/home/manc/ws/tsanGit/src/hotspot/share/tsan/tsanOopMap.cpp:157),
pid=70844, tid=70861
#  assert(s == bucket->get_oop_size()) failed: same oop should have same
size

I'm working on fixing the failures.

-Man


On Tue, Mar 31, 2020 at 11:52 PM Jie He <Jie.He at arm.com> wrote:

> Yes, it?s better if you can do that. As you said, I have no permission.
>
>
>
> I tried the rebase just for knowing how much risk here.
>
>
>
> *From:* Man Cao <manc at google.com>
> *Sent:* Wednesday, April 1, 2020 2:40 AM
> *To:* tsan-dev at openjdk.java.net
> *Cc:* nd <nd at arm.com>; Arthur Eubanks <aeubanks at google.com>; Jie He <
> Jie.He at arm.com>
> *Subject:* Re: Conflicts exist if move to jdk14
>
>
>
> I also looked at how other projects (portola and shenandoah) handle this.
>
> Unlike tsan and loom, which maintain separate development branches,
> both portola and shenandoah just maintain a single "default" branch. They
> also have separate repositories for JDK11, JDK12, etc.
>
> They also do regular "Merge" commits to sync with jdk/jdk in the master
> development repository.
>
> So I think we should go with "hg merge". Mercurial should be able to
> differentiate commits between the tsan and jdk/jdk. The "tsan" branch in
> our repository would help separate out the changes further.
>
>
>
> I guess the main problem with "hg rebase" is that it generates a whole new
> set of changeset IDs (hashes). We don't want to change the IDs for
> changesets that have already been pushed.
>
>
>
> Any more concerns before I try a merge with jdk14-ga?
>
>
> -Man
>

From manc at openjdk.java.net  Fri Apr 10 23:39:55 2020
From: manc at openjdk.java.net (Man Cao)
Date: Fri, 10 Apr 2020 23:39:55 GMT
Subject: RFR: Merge openjdk/tsan:tsan
Message-ID: <OamMT-htT6-vfQoGtJvpvafAATMis_Eo0nPwQPx3d80=.511e0cc7-9541-48ab-9101-4f3394da76e9@github.com>

Merge master branch till 952f32e.
This is the first step of merging to master's tip.
The next step is to address conflicts from a later commit (c1f4ea5) from
https://bugs.openjdk.java.net/browse/JDK-8239450.

$ git checkout master
$ git checkout tsan
$ git checkout -b tsanMerge1
$ git merge 952f32e
$ git mergetool
// resolve conflicts and fix tests
$ git commit -m "Merge"

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

Commit messages:
 - Merge
 - Added tag jdk-15+11 for changeset b2dd4028a6de
 - 8239094: PKCS#9 ChallengePassword attribute does not allow for the UTF8String type
 - 8239478: Make specification of SourceVersion.isName explicit for dotted names
 - 8231111: Cgroups v2: Rework Metrics in java.base so as to recognize unified hierarchy
 - 8239014: -XX:-UseEmptySlotsInSupers sometime fails to reproduce the layout of the old code
 - 8239139: test/jdk/java/nio/channels/spi/SelectorProvider/inheritedChannel/libInheritedChannel.c does not compile with gcc 8.3.1
 - 8239243: Create index structures only if required
 - 8238356: CodeHeap::blob_count() overestimates the number of blobs
 - 8239001: Hotspot build broken on linux-sparc after 8238281
 - 8239070: Memory leak when unsuccessfully mapping in archive regions
 - 8239363: PPC64: Wrong code generation after JDK-8183574
 - 8238953: tools/jpackage tests do not work on Ubuntu Linux
 - 8239333: test/jdk/security/infra/java/security/cert/CertPathValidator/certification/AmazonCA.java fails intermittent
 - 8237450: JDK13 annotation processors not run when a supported annotation type specifies a module
 - 8225128: Add exception for expiring DocuSign root to VerifyCACerts test
 - 8238969: Miscellaneous cleanup
 - 8239378: Add Classpath Exception to license in source file
 - 8210977: jdk/jfr/event/oldobject/TestThreadLocalLeak.java fails to find ThreadLocalObject
 - 8239019: testmake fails with FATAL: VCS_TYPE is empty
 - 8239026: Support non-maven artifacts by JibArtifactManager
 - 8187305: Add logging for shared library loads/unloads
 - 8167493: Test that JFR event can be retransformed by an agent
 - 8237780: Shenandoah: More reliable nmethod verification
 - 8239224: libproc_impl.c previous_thr may be used uninitialized warning
 - 8239350: Add tests for JFR class redefinition events
 - 8239265: JFR: Test cleanup of jdk.jfr.api.consumer package
 - 8232686: Turn parallel gc develop tracing flags into unified logging
 - 8238999: Remove MemRegion custom new/delete operator overloads
 - 8237480: Add micros for DatagramSocket send/receive
 - 8239142: C2's UseUniqueSubclasses optimization is broken for array accesses
 - 8239264: Clearup the legacy ObjectIdentifier constructor from int array
 - 8163251: Hard coded loop limit prevents reading of smart card data greater than 8k
 - 8238236: Add JFR class redefinition events
 - 8239069: C2: SIGSEGV in IdealGraphPrinter::walk_nodes due to C->root() being NULL
 - 8238765: PhaseCFG::schedule_pinned_nodes cannot handle precedence edges from unmatched CFG nodes correctly
 - 8239000: handle ContendedPaddingWidth in vm_version_ppc
 - 8239081: Shenandoah: Consolidate C1 LRB and native barriers
 - 8239005: [TESTBUG] test/hotspot/jtreg/runtime/StackGuardPages/TestStackGuardPages.java: exeinvoke.c: must initialize static state before calling do_overflow()
 - 8238691: C2: turn subtype check into macro node
 - 8183574: Unify the is_power_of_2 functions
 - 8213185: Properly handle run-test-prebuilt -> test-prebuilt migration
 - 8237818: Typo in Unsafe: resposibility
 - 8238534: Deep sign macOS bundles before bundle archive is being created
 - 8239110: Zero VM build fails after JDK-8203883
 - 8160818: GssKrb5Client violates RFC 4752
 - 8238959: Add missing classpath exception to FileAcess and ConstantLookup
 - 8239092: Provide explicit specification for getKind methods of javax.lang.model
 - 8238196: tests that use SA Attach should not be allowed to run against signed binaries on Mac OS X 10.14.5 and later
 - 8238758: [JVMCI] fix JVMCI jtreg events tests to work with GraalVM
 - 8236759: ShouldNotReachHere in PhaseIdealLoop::verify_strip_mined_scheduling
 - 8203883: Remove State from InvocationCounters
 - 8238863: Refactor out static initialization from Dict constructors
 - 8239025: ProblemList java/net/httpclient/HandshakeFailureTest.java due to JDK-8238990
 - 8231118: ARM32: Math tests failures
 - 8238643: ARM32 build fails after JDK-8230199
 - 8239017: cmp-baseline fails because of differences in TimeZoneNames_kea
 - 8238710: LingeredApp doesn't log stdout/stderr if exits with non-zero code
 - 8235791: [TESTBUG] Fix comment in TestElfDirectRead.java
 - 8238867: Improve G1DirtyCardQueueSet::Queue::pop
 - 8238932: Invalid tier1_gc_1 test group definition
 - 8238838: spurious error message for compact constructors with throws clause
 - 8234608: [TESTBUG] Fix G1 redefineClasses tests and a memory leak
 - 8237805: Use inline @jls @jvms in core libs where appropriate
 - 8239007: java/math/BigInteger/largeMemory/ tests should be disabled on 32-bit platforms
 - 8046362: IdentityHashMap.hash comments should be clarified
 - 8238961: Assertion failure in new field layout code when ContendedPaddingWidth == 0
 - 8238896: Massive x86_32 crashes after JDK-7175279 (Don't use x87 FPU on x86-64)
 - 8238909: x86_32 fails gtest:power_of_2
 - 8238175: CTW: Class.getDeclaredMethods fails with assert(k->is_subclass_of(SystemDictionary::Throwable_klass())) failed: invalid exception class
 - 8238811: C2: assert(i >= req() || i == 0 || is_Region() || is_Phi()) with -XX:+VerifyGraphEdges
 - 8238756: C2: assert(((n) == __null || !VerifyIterativeGVN || !((n)->is_dead()))) failed: can not use dead node
 - 8237945: CTW: C2 compilation fails with assert(just_allocated_object(alloc_ctl) == ptr) failed: most recent allo
 - 8238178: CTW: C1 compilation fails with assert(sux->loop_depth() != block->loop_depth() || sux->loop_index() == block->loop_index() || loop_through_xhandler) failed: Loop index has to be same
 - 8238782: Cleanup Deoptimization::deoptimize(): remove unused RegisterMap argument and don't update RegisterMap in callers if UseBiasedLocking is enabled
 - 8234718: java/net/httpclient tests should cover TLSv1.3
 - 8237830: support O_CLOEXEC in os::open on other OS than Linux
 - 8238854: Remove superfluous C heap allocation failure checks
 - Added tag jdk-15+10 for changeset 1bee69801aee
 - 8234372: Investigate use of Thread::stack_base() and queries for "in stack"
 - 8238272: Eliminate cast_from_oop to narrowOop*
 - 8238919: (doc) Broken code snippet in the java.util.stream package documentation
 - 8238930: problem list compiler/c2/Test8004741.java
 - 8238912: Update devkit for linux-aarch64
 - 8234347: "Turkey" meta time zone does not generate composed localized names
 - 8191395: policy.allowSystemProperty and policy.expandProperties also apply to JAAS configurations
 - 8238918: idea.sh should work with both mercurial and git repos
 - 8238851: Shenandoah: C1: Resolve into registers of correct type
 - 8238602: remove obsolete functions from libinstrument/FileSystemSupport_md.c
 - 8238448: RSASSA-PSS signature verification fail when using certain odd key sizes
 - Merge
 - 8238898: Missing hash characters for header on license file
 - 8236512: PKCS11 Connection closed after Cipher.doFinal and NoPadding
 - 8232069: Enable CDS even when UseCompressedClassPointers and/or UseCompressedOops are false
 - 8237909: Remove zipped index files feature
 - 8238291: Fix inconsistencies in the format of the index files
 - 8238762: Optimized build is broken
 - 8238683: C2: Remove Use24BitFP and Use24BitFPMode flags
 - 8238690: C2: Handle vector shifts by constant and non-constant scalar uniformly
 - 8238680: C2: Remove redundant AD instructions for Replicate nodes
 - 8136414: Large performance penalty declaring a method strictfp on strict-only platforms
 - 8238160: Uniformize Parallel GC task queue variable names
 - 8238386: (sctp) jdk.sctp/unix/native/libsctp/SctpNet.c "multiple definition" link errors with GCC10
 - Merge
 - 8238278: vmTestbase/vm/compiler/CodeCacheInfo/Test.java failure after JDK-8237787
 - Merge
 - 8237222: [macos] java/awt/Focus/UnaccessibleChoice/AccessibleChoiceTest.java fails
 - 8238276: ComponentPeer.xxxImage are not implemented in some peers
 - 8238721: Add failing client jtreg tests to the Problem List
 - Merge
 - 8215452: Logged repo location is wrong when using delayed recording start
 - 8225126: Test SetBoundsPaintTest.html faild on Windows when desktop is scaled
 - 8238380: java.base/unix/native/libjava/childproc.c "multiple definition" link errors with GCC10
 - 8231508: Spec Clarification : KeyTab:exist() method does not specify about the fallback details
 - 8236844: Deprecate PrintVMQWaitTime to prepare for its removal
 - 8234935: JdwpListenTest.java and JdwpAttachTest.java getting bind failures on Windows 2016 hosts
 - 8238677: java/net/httpclient/ssltest/CertificateTest.java should not specify TLS version
 - 8235812: Unicode linebreak with quantifier does not match valid input
 - 8238646: Cleanup signature and use of CommentHelper
 - 8238239: java.lang.Record spec clarifications
 - 8235962: os::current_thread_id() is not signal safe on macOS
 - 8237767: Field layout computation overhaul
 - 8238634: Reduce log verbosity of the JFR thread sampler
 - 8237878: Improve ModuleLoaderMap datastructures
 - 8238376: test/jdk/java/nio/channels/DatagramChannel/Loopback.java failing on multi-homed systems
 - 8235900: [TESTBUG] [macos] PopupMenu Opaque property is not reflecting the Parents property on MAC OS
 - 8221741: ClassCastException can happen when fontconfig.properties is used
 - 8237837: Shenandoah: assert(mem == __null) failed: only one safepoint
 - 8238385: CTW: C2 (Shenandoah) compilation fails with "Range check dependent CastII node was not removed"
 - 8230301: Re-examine hardcoded defaults in GenerateJLIClassesPlugin
 - 8238596: AVX enabled by default for Skylake even when unsupported
 - 8223260: NamingManager should cache InitialContextFactory
 - 8238591: CTW: Split applications/ctw/modules/jdk_localedata.java
 - 8238247: CTW runner should sweep nmethods more aggressively
 - 8238366: CTW runner closes standard output on exit
 - 8238684: Override getOrDefault in immutable Map implementation
 - 8238586: [TESTBUG] vmTestbase/jit/tiered/Test.java failed when TieredCompilation is disabled
 - 8238437: Support separate locales for console messages and HTML content
 - 8238506: fix obsolete comments and inconsistent exceptions in BaseTaglet
 - 8238648: Rename and simplify Utils.WeakSoftHashMap
 - 8219999: TestJFREvents container test should not use jdk.CPUInformation event for container CPU values
 - Merge
 - Added tag jdk-14+36 for changeset bc54620a3848
 - 8238605: Correct the CLDR version number in cldr.md files
 - Added tag jdk-14+35 for changeset 4a87bb7ebfd7
 - 8237776: Shenandoah: Wrong result with Lucene test
 - 8238377: JDK 14 L10N resource file update - msgdrop 20
 - 8237514: Spec Clarification - ByteBuffer::alignmentOffset Spec
 - 8236743: JFR: assert(klass != __null) failed: invariant in ObjectSampleCheckpoint::add_to_leakp_set
 - 8236092: Remove EA from JDK 14 version string starting with Initial RC promotion
 - Added tag jdk-14+34 for changeset a96bc204e3b3
 - 8238168: Remove Copyright from WinLauncher.template
 - 8235778: No compilation error reported when a record is declared in a local class
 - 8237918: Bad copyright line in a hotspot test
 - 8237916: Bad copyright line in a jshell source file
 - 8237651: Clarify initialization of jdk.serialFilter
 - 8176359: Frame#setMaximizedbounds not working properly in multi screen environments
 - 8236996: Incorrect Roboto font rendering on Windows with subpixel antialiasing
 - 5085520: Inconsistency in spec for RenderingHints.entrySet()
 - 8215361: (doc) Cleanup package-info markup - smartcardio, java.sql, java.sql.rowset
 - 8237368: Problem with NullPointerException in RMI TCPEndpoint.read
 - 8237607: [macos] Signing app bundle with jpackage fails if runtime is already signed
 - 8237049: Rollback the workaround for JDK-4533057
 - 8225471: Test utility jdk.test.lib.util.FileUtils.areAllMountPointsAccessible needs to tolerate duplicates
 - 8231515: [Graal] Crash during exception throwing in InterpreterRuntime::resolve_invoke
 - 7020860: BasicTreeUI contains getters/setters with unclear spec
 - Added tag jdk-14+33 for changeset f728b6c7f491
 - 8237465: JDK 14 L10n resource files update - msg drop 10
 - 8237396: JvmtiTagMap::weak_oops_do() should not trigger barriers
 - 8235305: Corrupted oops embedded in nmethods due to parallel modification during optional evacuation
 - Merge
 - Merge
 - 8237586: Shenandoah: provide option to disable periodic GC
 - 8237248: Update --release 14 symbol information for JDK 14 b32
 - 8236034: Use optimized Ques node for curly {0,1} quantifier
 - 8237601: test/langtools/tools/javac/warnings/MaxDiagsRecompile.java fails after JDK-8237589
 - 8235368: Update BCEL to Version 6.4.1
 - 8237589: Fix copyright header formatting
 - 8236641: Improve Set.of(...).iterator() warmup characteristics
 - 8237571: java/net/DatagramSocket/SendCheck.java is failing on Solaris
 - 8187987: Add a mechanism to configure custom variants in HijrahChronology
 - 8237374: configuring with --with-jvm-variants=minimal,server makes cds disappear in server
 - Merge
 - 8237261: Concurrent refinement activation threshold not updated for card counts
 - Merge
 - 8237543: Shenandoah: More asserts around code roots
 - 8236105: Behaviors of DatagramSocket/DatagramChannel::socket send methods are not always consistent
 - 8237508: Simplify JarFile.isInitializing
 - 8235860: Obsolete the UseParallelOldGC option
 - 8237479: 8230305 causes slowdebug build failure
 - 8236925: (dc) Upgrade DatagramChannel socket adaptor to extend MulticastSocket
 - 8053479: (dc) DatagramChannel.read() throws exception instead of discarding data when buffer too small
 - 8224109: Text spaced incorrectly by drawString under rotation with fractional metric
 - 8236859: WebSocket over authenticating proxy fails with NPE
 - 8236766: Remove un-used oops do and drain list in VM thread
 - 8237075: @since tag missing from DatagramSocket and MulticastSocket methods
 - 8237392: Shenandoah: Remove unreliable assertion
 - 8234173: assert(loader != __null && oopDesc::is_oop(loader)) failed: loader must be oop
 - 8237369: Shenandoah: failed vmTestbase/nsk/jvmti/AttachOnDemand/attach021/TestDescription.java test
 - 8237370: Javadoc of memory access API still refers to old MemoryAddress::offset method
 - 8237348: Javadoc of MemorySegment::allocateNative should state that memory is zero-initialized8237348: Javadoc of MemorySegment::allocateNative should state that memory is zero-initialized
 - 8224052: Javadoc doesn't handle non-public intermediate types well
 - 8234484: Add ability to configure third port for remote JMX
 - 8235955: [dmg] DMG creation fails without error message if previous DMG was not ejected
 - 8237576: Missing import in macosx/../ClassLoaderHelper
 - 8237570: Shenandoah: cleanup uses of allocation/free threshold in static heuristics
 - 8236075: Minor bootstrap improvements
 - 8237382: Cleanup the OPT_SPEED_SRC file list in JvmFeatures.gmk
 - Merge
 - 8235904: Infinite loop when rendering huge lines
 - 8236850: Operations on constant List/Set.of(element) instances does not consistently constant fold
 - 8220002: Improve anchor definitions in generated files
 - 8236228: clean up BarrierSet headers in c1_LIRAssembler
 - 8237014: Missing javadoc for jdk.jfr.Recording(Map)
 - 8208281: java/nio/channels/AsynchronousSocketChannel/Basic.java timed out
 - 8236153: ZGC: gc/z/TestUncommit.java fails with java.lang.Exception: Uncommitted too fast
 - 8236443: Issues with specializing vector register type for phi operand with generic operands
 - 8237042: Switch to JCov build which supports byte code version 59
 - 8234466: Class loading deadlock involving X509Factory#commitEvent()
 - 8230926: [macosx] Two apostrophes are entered instead of one with "U.S. International - PC" layout
 - 8237017: Shenandoah: Remove racy assertion
 - Merge
 - 8174270: Consolidate ICU sources in one location
 - 8237008: Exclude serviceability/sa/TestInstanceKlassSizeForInterface.java on linuxppc64 and linuxppc64le
 - 8223788: [macos] JSpinner buttons in JColorChooser dialog may capture focus using TAB Key
 - 8229855: C2 fails with assert(false) failed: bad AD file
 - 8236546: Yield with boolean expression and Object target type crashes javac
 - 8236715: JShell: Records with errors are not properly corraled
 - 8236634: Memory Access API tests fail on 32-bit
 - 8222098: tools/jlink/plugins/IncludeLocalesPluginTest.java time out
 - 8236936: x86_32 Minimal VM build failure after JDK-8230765
 - 8236841: compact constructor parameters are always final
 - 8236263: Remove experimental streaming events
 - 8236945: typo "the the" in Lookup::in javadoc
 - 8225773: jdeps --check produces NPE if there are missing module dependences
 - 8229396: jdeps ignores multi-release when generate-module-info used on command line
 - 8236877: Add "record" to descriptions in java.lang.{annotation, reflect}
 - 8235584: UseProfiledLoopPredicate fails with assert(_phase->get_loop(c) == loop) failed: have to be in the same loop
 - 8235669: G1: Stack walking API can expose AS_NO_KEEPALIVE oops
 - 8236555: [s390] Fix VerifyOops
 - 8236488: Support for configure option --with-native-debug-symbols=internal is impossible on Windows
 - 8234913: Improve parsing of Length Units in javax/swing/text/html/CSS
 - Merge
 - 8236851: Shenandoah: More details in Traversal GC event messages
 - 8236897: Fix the copyright header for pkcs11gcm2.h
 - 8229847: AttachProvider javadoc page needs an update
 - Merge
 - 8236804: java/nio/channels/FileChannel/MapWithSecurityManager.java should be run in othervm mode
 - 8236582: (fc) FileChannel.map fails with InternalError when security manager enabled
 - 8236140: assert(!VerifyHashTableKeys || _hash_lock == 0) failed: remove node from hash table before modifying it
 - 8236856: AArch64: Spurious GCC warnings
 - Merge
 - 8235385: AArch64: Crash on aarch64 JDK due to long offset
 - 8228818: Shenandoah: Processing weak roots in concurrent phase when possible
 - 8236779: static field in implementation class erroneously leaking in memory access javadoc
 - 8225561: jlink --help doesn't state that ALL-MODULE-PATH is accepted for --add-modules
 - 8235762: JVM crash in SWPointer during C2 compilation
 - 8236953: [macos] JavaFX SwingNode is not rendered on macOS
 - Added tag jdk-14+32 for changeset 2776da28515e
 - 8233680: JavacFileManager.close() doesn't clear some cache instance variables
 - 8236726: Put vmTestbase/vm/mlvm/indy/stress/java tests on AOT Problem list
 - 8237186: Fix typo in copyright header of java/io/Reader/TransferTo.java
 - 8235837: Memory access API refinements
 - 8233655: NPE at jdk.compiler/com.sun.tools.javac.comp.Flow$FlowAnalyzer.visitApply
 - 8233452: java.math.BigDecimal.sqrt() with RoundingMode.FLOOR results in incorrect result
 - Merge
 - Merge
 - 8237183: Bug ID missing for test in patch which fixed JDK-8230665
 - 8237058: Update all nroff manpages for JDK 14 release
 - 8236957: Obvious typo in java/security/spec/RSAMultiPrimePrivateCrtKeySpec.java
 - 8236661: launcher test PatchSystemModules.java start failing frequently after JDK-8234049
 - 8230665: (bf spec) ByteBuffer::alignmentOffset spec misleading when address is misaligned
 - 8237062: Refine JSR 269 API ahead of Java SE 14 MR
 - 8236691: JFR: assert((((((klass)->trace_id()) & ((JfrTraceIdEpoch::method_and_class_in_use_this_epoch_bits()))) != 0))) failed: invariant
 - 8236005: local records shouldn't capture any non-static state from any enclosing type
 - 8237055: [TESTBUG] compiler/c2/TestJumpTable.java fails with release VMs
 - 8236670: Conflicting bindings accepted in some cases
 - 8236443: Issues with specializing vector register type for phi operand with generic operands
 - 8234423: Modifying ArrayList.subList().subList() resets modCount of subList
 - 8237038: Shenandoah: Reduce thread pool size in TestEvilSyncBug.java test
 - 8236125: Windows (MSVC 2013) build fails in jpackage: Need to include strsafe.h after tchar.h
 - 8222100: tools/jimage/JImageTest.java time out
 - 8236944: The legVecZ operand should be limited to zmm0-zmm15 registers
 - Merge
 - 8224475: JTextPane does not show images in HTML rendering
 - Added tag jdk-14+31 for changeset decd3d2953b6
 - Added tag jdk-14+31 for changeset d54ce919da90
 - Added tag jdk-15+5 for changeset b97c1773ccaf
 - 8236769: Clarify javadoc of memory access API
 - 8236815: Shenandoah: Fix weak roots in final Traversal GC phase
 - 8236264: Remove jdk.jfr.Recording::setFlushInterval and jdk.jfr.Recording::getFlushInterval
 - 8236098: AlgorithmConstraints:permits method not throwing IAEx when primitives are empty
 - 8236804: java/nio/channels/FileChannel/MapWithSecurityManager.java should be run in othervm mode
 - 8236190: Unproblem list vmTestbase/nsk/jvmti/scenarios/hotswap/HS102/hs102t002/TestDescription.java
 - 8236582: (fc) FileChannel.map fails with InternalError when security manager enabled
 - Merge
 - 8235934: gc/g1/TestGCLogMessages.java fails with 'DerivedPointerTable Update' found
 - 8236772: Fix build for windows 32-bit after 8212160 and 8234331
 - 8236902: Shenandoah: Missing string dedup roots in all root scanner
 - 8234510: Remove file seeking requirement for writing a heap dump
 - 8231670: Remove TaskExecutor abstraction used in preserved marks processing
 - 8235818: Inline information from broken external links in java.desktop
 - 8236709: struct SwitchRange in HS violates C++ One Definition Rule
 - 8234309: LFGarbageCollectedTest.java fails with parse Exception
 - 8236905: ProblemList test/hotspot/jtreg/runtime/Metaspace/DefineClass.java
 - 8234423: Modifying ArrayList.subList().subList() resets modCount of subList
 - 8232759: Remove GC.class_stats
 - Merge
 - 8235766: SafepointSynchronize::_end_of_last_safepoint is unused
 - 8214277: Use merged G1ArchiveRegionMap for open and closed archive heap regions
 - 8236625: Remove writeable macro from JVM flags declaration
 - 8236489: Java heap file on daxfs should be more secure
 - 8236705: Use single character variant of String.replace when applicable
 - 8235751: Assertion when triggering concurrent cycle during shutdown
 - 8236124: Minimal VM slowdebug build failed after JDK-8212160
 - 8236732: Shenandoah: Stricter placement for oom-evac scopes
 - 8236732: Shenandoah: Stricter placement for oom-evac scopes
 - 8236124: Minimal VM slowdebug build failed after JDK-8212160
 - 8234783: Improve wording of spec of Record.equals
 - 8236224: Obsolete the FieldsAllocationStyle and CompactFields options
 - 8236695: java.lang.Record should be declared with an explicit constructor
 - 8235984: C2: assert(out->in(PhiNode::Region) == head || out->in(PhiNode::Region) == slow_head) failed: phi must be either part of the slow or the fast loop
 - 8236050: Some compiler tests fail when executed with custom TieredLevel
 - 8234445: spurious error message for record constructors with receiver parameters
 - 8236266: change error message for the case when a class extends j.l.Record
 - 8236544: confusing error message: return type of accessor method is not compatible with type of record component
 - 8236681: Shenandoah: Disable concurrent class unloading flag if no class unloading for the GC cycle
 - 8236681: Shenandoah: Disable concurrent class unloading flag if no class unloading for the GC cycle
 - 8233751: StringBuilder / StringBuffer capacity() doc is misleading
 - 8236181: C2: Remove useless step_over_gc_barrier() in int->bool conversion
 - 8236161: C2: Remove useless step_over_gc_barrier() in int->bool conversion
 - 8236495: open/test/jdk/java/util/Locale/LocaleProvidersRun.java failed on mac 10.14 with de_DE locale
 - 8235532: Update --release 14 symbol information for JDK 14 b27
 - 8227313: Support monetary grouping separator in DecimalFormat/DecimalFormatSymbols
 - 8236039: JSSE Client does not accept status_request extension in CertificateRequest messages for TLS 1.3
 - 8236595: Add more comments about how to setup simulated NVRAM before run java/nio/MappedByteBuffer/PmemTest.java
 - 8236552: Description of jmxremote.ssl.config.file in ManagementAgent.start is incorrect
 - 8236545: Compilation error in mach5 java/awt/FileDialog/MacOSGoToFolderCrash.java
 - 8236544: confusing error message: return type of accessor method is not compatible with type of record component
 - 8236617: jtreg test containers/docker/TestMemoryAwareness.java fails after 8226575
 - 8235870: C2 crashes in IdealLoopTree::est_loop_flow_merge_sz()
 - Added tag jdk-15+4 for changeset bb0a7975b31d
 - 8236274: remove obsolete -d2Zi+ debug flag in MSVC builds
 - Added tag jdk-14+30 for changeset d54ce919da90
 - Added tag jdk-14+29 for changeset 563fa900fa17
 - Added tag jdk-15+3 for changeset d05fcdf25717
 - 8235520: [macosx] Delete NSView based direct rendering mechanism
 - 8234706: MenuPeer cleanup
 - 8210231: Robot.delay() catches InterruptedException and prints stacktrace to stderr
 - 8236506: [macosx] Some datatransfer classes were loaded on startup
 - 8236470: Deal with ECDSA using ecdsa-with-SHA2 plus hash algorithm as AlgorithmId
 - 8236364: TEMP vector registers could be incorrectly assigned upper bank xmm registers after Generic Operands (JDK-8234391)
 - 8235637: jhsdb jmap from OpenJDK 11.0.5 doesn't work if prelink is enabled
 - 8236435: Fix typos in javac area
 - 8233743: AArch64: Make r27 conditionally allocatable
 - 8167065: Add intrinsic support for double precision shifting on x86_64
 - 8235961: SyncResolverImpl does not throw SQLException as expected
 - 8236441: Bound MulticastSocket fails when setting outbound interface on Windows
 - 8233164: C2 fails with assert(phase->C->get_alias_index(t) == phase->C->get_alias_index(t_adr)) failed: correct memory chain
 - 8222759: com.sun.java.swing.plaf.gtk.GTKLookAndFeel has unnecessary casts to GTKStyleFactory
 - 8234059: Stress test fails with "Unexpected Exception in thread JFR Event Stream"
 - 8233111: Epoch shift synchronization point for Compiler threads
 - 8236405: Formatting issues in Kerberos debug output
 - Merge
 - 8234727: sun/security/ssl/X509TrustManagerImpl tests support TLSv1.3
 - 8236449: Problem list compiler/jsr292/ContinuousCallSiteTargetChange.java on solaris-sparcv9
 - 8236179: C1 register allocation error with T_ADDRESS
 - 8235119: Incomplete initialization of scan_top values results in out-of-bounds scanning of regions
 - 8231291: C2: loop opts before EA should maximally unroll loops
 - 8237086: assert(is_MachReturn()) running CTW with fix for JDK-8231291
 - 7021373: DatagramPacket exception conditions are not clear
 - 8237484: Improve module system bootstrap
 - 8236272: Improve fidelity between contents of default CDS archive and classes loaded at runtime
 - 8238599: Refactor and simplify implAddOpensToAllUnnamed
 - 8238460: Provide warnings about the use of JNI RegisterNatives to rebind native methods for boot/platform classes in other classloaders
 - 8237143: Eliminate DirtyCardQ_cbl_mon
 - 8238503: Remove unused field and accessor for docLocale from ToolOptions
 - 8196729: Add jstatd option to specify RMI connector port
 - 8238574: Shenandoah: Assertion failure due to missing null check
 - Merge
 - 8238600: Remove runtime/fieldType.hpp and fieldType.cpp
 - 8230199: consolidate signature parsing code in HotSpot sources
 - 8201349: build broken when configured with --with-zlib=bundled on gcc 7.3
 - 8212986: Make Visual Studio compiler check less strict
 - 8238542: When warning about C/C++ compiler mismatch, be clear if this is about build compilers
 - 8218480: Automatically add -Werror in FLAGS_COMPILER_CHECK_ARGUMENTS
 - 8237581: Improve allocation expansion
 - 8238530: OPT_SPEED_SRC list misses some files with cpu-dependend file names
 - Added tag jdk-15+9 for changeset 62b5bfef8d61
 - 8222793: Javadoc tool ignores "-locale" param and uses default locale for all messages and texts
 - 8230047: Remove legacy java.lang.reflect.ProxyGenerator_v49
 - 8238225: Issues reported after replacing symlink at Contents/MacOS/libjli.dylib with binary
 - 8235795: replace monitor list mux{Acquire,Release}(&gListLock) with spin locks
 - 8236035: refactor ObjectMonitor::set_owner() and _owner field setting
 - 8235931: add OM_CACHE_LINE_SIZE and use smaller size on SPARCv9 and X64
 - 8235699: ArrayIndexOutOfBoundsException in CalendarBuilder.toString
 - 8179317: [TESTBUG] rewrite runtime shell tests in java
 - 8238388: libj2gss/NativeFunc.o "multiple definition" link errors with GCC10
 - 8238281: Raise minimum gcc version needed to 5.0
 - 8238375: JFR Test TestJcmdStartFlushInterval is not run
 - 8238515: Backout JDK-8236092 from jdk/jdk
 - Merge
 - 8237804: sun/security/mscapi tests fail with "Key pair not generated, alias <nnnnnn> already exists"
 - 8238467: Clean up annotations on overridden/implemented methods
 - 8219475: javap man page needs to be updated
 - 8238502: sunmscapi.dll causing EXCEPTION_ACCESS_VIOLATION
 - 8238162: Shenandoah: Remove ShenandoahTaskTerminator wrapper
 - 8238231: Custom DatagramSocketImpl's create method not called when with protected constructor
 - 8235954: [dmg] Default DMG background tiff of jpackage not retina ready
 - 8238190: [JVMCI] Fix single implementor speculation for diamond shapes
 - 8237951: CTW: C2 compilation fails with "malformed control flow"
 - 8237962: give better error output for invalid OCSP response intervals in CertPathValidator checks
 - 8233220: Space::_par_seq_tasks is unused after CMS removal
 - 8238229: Remove TRACESPINNING debug code
 - 8238220: Rename OWSTTaskTerminator to TaskTerminator
 - 8215297: Remove ParallelTaskTerminator
 - 8196875: Update run-test instructions for TEST_MODE
 - 8238284: [macos] Zero VM build fails due to an obvious typo
 - 8238203: Return value of GetUserDefaultUILanguage() should be handled as LANGID
 - 8238241: Clean up problem list for JFR tests
 - 8238198: Avoid using @ tags in TestOptionsWithRanges_generate.sh
 - 8235332: TestInstanceCloneAsLoadsStores.java fails with -XX:+StressGCM
 - 8238259: new tests do not account for Windows file separators
 - 8237953: vmTestbase/jit/tiered/Test.java failure after JDK-8237798
 - 8237914: The test-make target does not fail on test failure
 - 8200363: Add javadoc command line setting to fail on warnings
 - 8236949: javadoc -Xdoclint does not accumulate options correctly
 - 8235599: [TESTBUG] JFR streaming/TestJVMCrash.java fails to cleanup files after test
 - 8232636: JFR TestDumpOnCrash.java crashed and failed to create emergency dump file
 - 8219686: jdk/jfr/event/runtime/TestShutdownEvent.java recording file length is 0
 - 8213918: DumpReason JFR event is not covered by test
 - 8237521: Memory Access API fixes for 32-bit
 - 8238189: Cleanups to AES crypto micros
 - 8237080: fatal error: VM thread could block on lock that may be held by a JavaThread during safepoint: SharedDecoder_lock
 - 8237882: ZGC: Remove ZUtils::round_{up,down}_power_of_2() declarations
 - 8237884: ZGC: Use clamp() instead of MIN2(MAX2())
 - 8237825: ZGC: Replace -XX:ZPath with -XX:AllocateHeapAt
 - 8237758: ZGC: Move get_mempolicy() syscall wrapper to ZSyscall
 - 8237649: ZGC: Improved NUMA support when using small pages
 - 8238224: test\jdk\jdk\jfr\event\io\EvilInstrument.java should be removed
 - 8237879: make 4.3 breaks build
 - 8221331: test/jdk/jdk/jfr/event/io/EvilInstrument.java needs to re-worked to avoid recursive initialization issues
 - 8223699: cleanup perfMemory_aix.cpp O_NOFOLLOW coding on aix
 - 8202142: jfr/event/io/TestInstrumentation is unstable
 - 8229971: Arm32: implementation for Thread-local handshakes
 - 8237857: LogDecorations::uptimenanos is implemented incorrectly
 - Merge
 - Added tag jdk-15+8 for changeset c7d4f2849dbf
 - 8237787: rewrite vmTestbase/vm/compiler/CodeCacheInfo* from shell to java
 - 8237574: Make TestNative work without -nativepath
 - 8215890: Simplify jdk/jfr/api/recording/event/TestPeriod.java
 - 8237364: Add early validation to the jdk.jfr.Recording constructor
 - 7175279: Don't use x87 FPU on x86-64
 - 8222001: JFR event for heap dumps written
 - 8233822: VM_G1CollectForAllocation should always check for upgrade to full
 - 8237046: [TESTBUG] runtime/CommandLine/OptionsValidation/TestOptionsWithRanges_generate.sh should be excluded from testing
 - 8237896: MulticastSocket should link to DatagramChannel as an alternative for multicasting
 - 8236211: [Graal] compiler/graalunit/GraphTest.java is skipped in all testing
 - 8238167: Remove stray files from jdk.javadoc
 - 8230392: Define AArch64 as MULTI_COPY_ATOMIC
 - 8238153: CTW: C2 (Shenandoah) compilation fails with "Unknown node in get_load_addr: CreateEx"
 - 8237524: AArch64: String.compareTo() may return incorrect result
 - 8238083: Crash: assert(is_object_aligned(v)) failed: address not aligned: 0xfffffffffffffff1
 - 8237528: Inefficient compilation of Pattern Matching for instanceof
 - 8232689: Remove ParCompactionManager::Action enum
 - Merge
 - 8237887: CDSandJFR: assert(instance_klass->is_initialized()
 - 8237963: Shenandoah: Heap iteration should use concurrent version of string dedup roots
 - 8236997: tools/javac tests fail with --illegal-access=deny
 - 8237869: exclude jtreg test security/infra/java/security/cert/CertPathValidator/certification/LuxTrustCA.java because of instabilities
 - Merge
 - 8235149: javac parser is too aggressive on ambiguous expressions using identifier: record
 - 8237800: rewrite vmTestbase/jit/escape/LockCoarsening from shell to java
 - 8237798: rewrite vmTestbase/jit/tiered from shell to java
 - 8237845: Encapsulate doclet options
 - 8237803: Reorganize impl of tool options
 - 8237874: Shenandoah: Backout JDK-8234399
 - 8235681: Remove unnecessary workarounds in UnixOperatingSystem.c
 - 8227610: Remove allocation when getting EventHandle
 - 8236714: enable link-time section-gc for linux to remove unused code
 - 8237819: s390x - remove unused pd_zero_to_words_large
 - 8237847: Zero builds fail after JDK-8237637 (Remove dubious type conversions from oop)
 - 8237817: Clean up net-properties.html
 - Merge
 - 8237821: Shenandoah: build broken after JDK-8237637 (Remove dubious type conversions from oop)
 - 8235846: Improve WindbgDebuggerLocal implementation
 - 8236596: HttpClient leaves HTTP/2 sockets in CLOSE_WAIT, when using proxy tunnel
 - 7006496: Use modern Windows API to retrieve OS DNS servers
 - 8237501: TestInstanceKlassSizeForInstance runs TestInstanceKlassSize instead
 - 8233795: Consider adding a notion of a Value-based class to API Documentation index
 - 8042742: possible error in Tokens.Token.checkKind() for javac
 - 8237111: LingeredApp should be started with getTestJavaOpts
 - 8237637: Remove dubious type conversions from oop
 - 8237645: Remove OopsInGenClosure::par_do_barrier
 - 8236778: Add Atomic::fetch_and_add
 - 8235966: Process obsolete flags less aggressively
 - 8236210: javac generates wrong annotation for fields generated from record components
 - 8237492: Reorganize impl of doclet options
 - Merge
 - 8206113: Troubles configuring graal tests
 - 8237756: Backout: JDK-8230594: Allow direct handshakes without VMThread intervention
 - 8235783: DatagramSocket::disconnect should allow an implementation to throw UncheckedIOException
 - 8234440: ZGC: Print relocation information on info level
 - 8237079: gc/g1/mixedgc/TestLogging.java fails with "Pause Young (Mixed) (G1 Evacuation Pause) not found"
 - 8237375: SimpleThresholdPolicy misses CounterDecay timestamp initialization
 - 8237752: Minimal VM build fails after JDK-8236236
 - Added tag jdk-15+7 for changeset e2bc57500c1b
 - 8237753: 32-bit builds are broken after JDK-823059
 - 8236913: debug agent's jdwp command logging should include the command set name and command name
 - 8234399: Shenandoah: Cleanup native load barrier
 - 8237724: Add org.graalvm.compiler.asm.amd64 to the list of packages to be processed by the options annotation processor
 - 8237747: Build broken on macOS by JDK-8235741 - wrong format specifier
 - 8235741: Inappropriate uses of os::javaTimeMillis()
 - 8236903: ZoneRules#getOffset throws DateTimeException for rules with last rules
 - Merge
 - 8236236: Eliminate CDS md region and consolidate c++ vtable patching code
 - 8236880: Shenandoah: Move string dedup cleanup into concurrent phase
 - 8230594: Allow direct handshakes without VMThread intervention
 - 8237512: AArch64: aarch64TestHook leaks a BufferBlob
 - 8235390: JfrEmergencyDump::on_vm_shutdown crashes
 - 8236246: SelectorProvider support for creating a DatagramChannel that is not interruptible
 - 8233826: Change CDS dumping tty->print_cr() to unified logging
 - Merge
 - 8231556: Wrong font ligatures used when 2 versions of same font used
 - 8235927: Update Graal
 - 8236139: [Graal] java/lang/RuntimeTests/exec/LotsOfOutput.java fails with JVMCI enabled
 - Merge
 - 8235961: SyncResolverImpl does not throw SQLException as expected
 - 8235738: [macos] tools/jpackage tests timeout on macOS
 - 8236138: Add tests for jmod applications
 - 8236266: change error message for the case when a class extends j.l.Record
 - 8234445: spurious error message for record constructors with receiver parameters
 - 8235913: ThreadStop should be a handshake
 - 8235912: JvmtiBreakpoint remove oops_do and metadata_do
 - 8236110: Windows (MSVC 2013) build failures after JDK-8233299
 - 8235833: PosixPlatform.cpp should not include sysctl.h
 - 8236242: Arm32: build broken after 8234794
 - 8234733: We can't distinguish if the spinner button is pressed or unpressed
 - Added tag jdk-14+28 for changeset 2069b4bfd23b
 - 8236000: VM build without C2 fails
 - 8233228: Disable weak named curves by default in TLS, CertPath, and Signed JAR
 - 8234277: ClhsdbLauncher should enable verbose exceptions and do a better job of detecting SA failures
 - 8235829: graal crashes with Zombie.java test
 - 8231612: 100% cpu on arm32 in Service Thread
 - 8235982: AArch64: Insufficient memory barriers in shadow region algorithm
 - 8230185: assert(is_Loop()) failed: invalid node class
 - 8223108: Test java/awt/EventQueue/NonComponentSourcePost.java is unstable
 - 8236062: Disable clhsdb initialization of SA javascript support since it will always fail, and will likely be removed soon
 - 8236130: ProblemList jdk/jfr/jmx/security/TestEnoughPermission.java
 - 8236044: Create jdk_accessibility test group
 - 8236106: [TESTBUG] Shenandoah: Make TestThreadFailure more resilient
 - 8236179: C1 register allocation error with T_ADDRESS
 - 8235819: -Wformat-overflow is reported from GCC 9
 - 8235866: bump jtreg requiredVersion to 4.2b16
 - 8235976: Directives in WWW-Authenticate should be comma separated
 - 8235998: [c2] Memory leaks during tracing after '8224193: stringStream should not use Resource Area'
 - 8231501: VM crash in MethodData::clean_extra_data(CleanExtraDataClosure*): fatal error: unexpected tag 99
 - 8235874: The ordering of Cipher Suites is not maintained provided through jdk.tls.client.cipherSuites and jdk.tls.server.cipherSuites system property
 - 8235813: System property fullCipherSuites is not used by javax/net/ssl/compatibility/Compatibility.java
 - 8235739: Rare NPE at WComponentPeer.getGraphics()
 - 8235638: NPE in LWWindowPeer.getOnscreenGraphics()
 - 8235634: Update Graal
 - 8234728: Some security tests should support TLSv1.3
 - 8235744: PIT: test/jdk/javax/swing/text/html/TestJLabelWithHTMLText.java times out in linux-x64
 - Added tag jdk-14+27 for changeset 91a3f092682f
 - 8234049: Implementation of Memory Access API (Incubator)
 - 8235668: LineNumberReader#getLineNumber() returns wrong line number (one fewer) in Lucene test
 - 8235814: Add --enable-deprecated-ports=yes to all solaris and SPARC build profiles
 - 8235842: Shenandoah: Implement native LRB for narrow oop
 - 8235686: Add more custom hooks in Bundles.gmk
 - 8235687: Contents/MacOS/libjli.dylib cannot be a symlink
 - 8234974: Shenandoah: Do concurrent roots even when no evacuation is necessary
 - 8236692: static final fields without initializer are accepted by javac
 - 8236487: JFR Recorder Thread crashed due to "assert(_chunkwriter.is_valid()) failed: invariant"
 - 8226797: serviceability/tmtools/jstat/GcCapacityTest.java fails with Exception: java.lang.RuntimeException: OGCMN > OGCMX (min generation capacity > max generation capacity)
 - 8234328: VectorSet::clear can cause fragmentation
 - 8215038: Add a page that lists all system properties
 - 8235756: C2: Merge AD instructions for DivV, SqrtV, and FmaV nodes
 - 8235719: C2: Merge AD instructions for ShiftV, AbsV, and NegV nodes
 - 8235688: C2: Merge AD instructions for AddV, SubV, and MulV nodes
 - 8235405: C2: Merge AD instructions for different vector operations
 - 8234392: C2: Extend Matcher::match_rule_supported_vector() with element type information
 - 8235760: ZGC: Implement precise check for @require vm.gc.Z for Windows
 - 8235759: Extend GCConfig::is_gc_supported to mean supported not only included in build
 - 8235757: Rename SupportedGC to IncludedGC
 - 8235748: ZGC: Remove ZAddress::address()
 - 8235696: ZGC: assert(ZNMethod::is_armed(nm) == _should_disarm_nmethods) failed: Invalid state
 - Merge
 - 8215728: [Graal] we should run some Graal tests in tier1
 - Merge
 - 8234370: Implementation of JEP 362: Deprecate the Solaris and SPARC Ports
 - 8231810: javax/net/ssl/templates/SSLSocketSSLEngineTemplate.java fails intermittently with "java.lang.Exception: Unexpected EOF"
 - 8235685: Shenandoah: Enable leak profiler
 - 8235361: JAR Class-Path no longer accepts relative URLs encoding absolute Windows paths (e.g "/C:/...")
 - 8235550: Clarify record reflective support specification
 - 8235531: Update record serialization migration tests to not use hard coded source versions
 - 8235598: Shenandoah: Update copyrights
 - 8223261: JDK-8189208 followup - remove JDK_GetVersionInfo0 and the supporting code
 - 8235515: TestBasicLogOutput.java crashes due to EXCEPTION_ACCESS_VIOLATION in HandshakeThreadsOperation::do_handshake
 - 8235539: [JVMCI] -XX:+EnableJVMCIProduct breaks -XX:-EnableJVMCI
 - 8235655: Clean the duplicated block in SSLContextImpl
 - Merge
 - 8235600: Problemlist JFR streaming/TestJVMCrash until after-test cleanup issue is resolved
 - 8234542: code removal of Pack200 Tools and API
 - 8235547: Video memory leak in the OGL pipeline on macOS
 - 8234398: Replace ID2D1Factory::GetDesktopDpi with GetDeviceCaps
 - 8234508: VM_HeapWalkOperation::iterate_over_object reads non-strong fields with an on-strong load barrier
 - 8234802: [TESTBUG] Test Right Mouse Button Drag Gesture Recognition in all the platforms
 - 8235541: Extend javax.lang.model to cover binding variables
 - 8235750: [jpackage] Cleanup imports in WinMsiBundler.java
 - 8234076: JVM crashes on Windows 10 using --module=NAME
 - 8235815: Revert 8227607: Broken external links in java.desktop
 - 8235489: handle return values of sscanf calls in hotspot
 - 8232231: Remove invalid JFR thread CPU load test case
 - 8227607: Broken external links in java.desktop
 - 8235808: Remove graalunit from tier1_compiler_not_xcomp
 - 8226575: OperatingSystemMXBean should be made container aware
 - 8235773: Tier3 fails because graalunit tests started to run with ZGC
 - 8235625: [TESTBUG] tools/jpackage/share/JavaOptionsEqualsTest.java fails with debug VMs
 - 8235620: Broken merge between JDK-8006406 and JDK-8003559
 - 8234522: [macos] Crash with use of native file dialog
 - 8229377: [JVMCI] Improve InstalledCode.invalidate for large code caches
 - 8235597: Extend support for -XDaccessInternalAPI to plugin modules
 - 8235621: Replace use of Function<?,Integer> with ToIntFunction
 - 8235789: AC_REQUIRE: 'PLATFORM_EXTRACT_TARGET_AND_BUILD' was expanded before it was required
 - Merge
 - 8214916: SourceLauncherTest fails on exploded image
 - 8235629: Remove unnecessary calls to Thread::current
 - 8210527: JShell: NullPointerException in jdk.jshell.Eval.translateExceptionStack
 - 8234870: Deprecate the OracleUcrypto JCE Provider for removal
 - 8235252: Repair run_tests.sh by locating jtreg locally
 - 8235414: Module level doc-files show "unnamed package" as holder
 - 8235728: JDK-8212780 breaks builds with a custom X11 include path
 - 8234284: [dmg] Change DMG background image to TIFF
 - 8235788: Changeset for JDK-8235252 pushed with wrong bug ID
 - 8234101: Compilation error thrown when repeating annotation is used on record component
 - 8235457: Crash when reporting a message about an annotation on a module
 - 8235776: Shenandoah: Shenandoah root updater not always uses right code blob closure
 - 8235767: Compilation failure caused by JDK-8212780: Packaging Tool Implementation
 - 8229961: Assert failure in compiler/graalunit/HotspotTest.java
 - 8235730: Incorrect javadoc in MatchKind
 - 8235767: Compilation failure caused by JDK-8212780: Packaging Tool Implementation
 - 8235654: JFR leak profiler should not trace through the StringTable
 - 8233112: Exclude SVG files from build comparison
 - 8231438: [macOS] Dark mode for the desktop is not supported
 - 8235636: gc/shenandoah/compiler/TestUnsafeOffheapSwap.java fails after JDK-8226411
 - 8235729: Shenandoah: Remove useless casting to non-constant
 - 8235551: BitMap::count_one_bits should use population_count
 - 8234746: Improve indexing of system properties
 - 8235670: Javadoc pages not printing correctly in some browsers
 - 8233866: Text in table cells has inconsistent alignment
 - 8220049: Obsolete ThreadLocalHandshakes
 - 8235410: Enable handshakes on Linux x86 (32-bit)
 - 8233033: C2 produces wrong result while unswitching a loop due to lost control dependencies
 - 8235653: Clean-up BarrierSetC2
 - 8235338: test jdk/jshell/CompletenessTest.java fails for records
 - 8235474: JShell does not handle records properly
 - 8235427: Remove unnecessary parameters from G1CollectedHeap::free_region and HeapRegion::hr_clear
 - 8235452: Strip mined loop verification fails with assert(is_OuterStripMinedLoop()) failed: invalid node class
 - 8235585: Enable macOS codesigning for all libraries and executables
 - Merge
 - 8230067: Add optional automatic retry when running jtreg tests
 - 8234835: Use UTF-8 charset in fixuppandoc
 - 8235446: confusing error message for records with no parens
 - 8234331: Add robust and optimized utility for rounding up to next power of two
 - 8235353: clean up hotspot problem lists
 - 8225219: [TESTBUG] AppCDS tests timed out with -Xcomp and --limit-modules option won't work with Graal
 - 8235475: Add additional timestamp to test java/nio/channels/Selector/SelectWithConsumer.java
 - 8220348: [ntintel] asserts about copying unaligned array
 - 8234185: Cleanup usage of canonicalize function between libjava, hotspot and libinstrument
 - 8235359: Simplify method Class.getRecordComponents()
 - 4949105: Access Bridge lacks html tags parsing
 - 8234386: [macos] NPE was thrown at expanding Choice from maximized frame
 - 8232226: [macos 10.15] test/jdk/java/awt/color/EqualityTest/EqualityTest.java may fail
 - 7124307: JSpinner and changing value by mouse
 - 8234137: The "AutoTestOnTop.java" test may run external applications
 - 8209113: Use WeakReference for lastFontStrike for created Fonts
 - 8214481: freetype path does not disable TrueType hinting with AA+FM hints
 - 8234784: Update jpeg.md to reflect code used by JDK
 - 8235245: tiff_metadata.html has invalid HTML structure: misplaced </thead> element
 - 8221903: PIT: javax/swing/RepaintManager/IconifyTest/IconifyTest.java fails on ubuntu18.04
 - 8235324: Dying objects are published from users of CollectedHeap::object_iterate
 - 8235530: Removed duplicated threadByName methods in nsk/jdi tests
 - 8234689: facilitate writing additional custom attributes in a class file
 - 8235586: Shenandoah: Traversal GC still uses old CLD::oops_do API
 - 8235448: code cleanup in SSLContextImpl.java
 - 8234211: allow discoverable javac plugins to be invoked by default
 - 8235490: AppCDS DynamicArchiveRelocationTest.java failed: 'always map archive(s) at an alternative address' missing
 - Merge
 - 8235453: tools/jpackage/junit/junit.java failed
 - 8225562: jlink --module-path behavior inconsistent with help/errors
 - 8235143: C2: No memory state needed in Thread::currentThread() intrinsic
 - 8226411: C2: Avoid memory barriers around off-heap unsafe accesses
 - 8233191: MulticastSocket joinGroup/leaveGroup do not specify their behavior when the outgoing interface has not been set
 - 8234735: InstanceKlass:find_method_index regression after JDK-8231610
 - 8234148: DatagramSocket.setOption/getOption/supportedOption should support multicast options
 - 8141685: com/sun/jndi/ldap/InvalidLdapFilters.java initializes context failed
 - 8235403: Further cleanup to test serviceability/sa/ClhsdbCDSCore.java
 - 8232513: java/net/DatagramSocket/PortUnreachable.java still fails intermittently with BindException
 - 8233319: Deprecate MulticastSocket methods that operate on java.net.InetAddress
 - 8165443: Free Collection Set serial phase takes very long on large heaps
 - 8235483: Warnings printed during the build
 - 8233453: MLVM deoptimize stress test timed out
 - 8235262: Move c2i_entry_barrier for x86_32 to shared
 - 8233222: Clarify system property usage in KerberosPrincipal instantiation
 - 8235510: java.util.zip.CRC32 performance drop after 8200067
 - 8235351: Lookup::unreflect should bind with the original caller independent of Method's accessible flag
 - 8235438: [JVMCI] StackTraceElement::decode should use the original Method
 - 8235514: Update record serialization tests to not use hard coded source versions
 - 8218268: Javac treats Manifest Class-Path entries as Paths instead of URLs
 - 8235499: Change HotSpot jtreg records test to better handle JDK updates
 - 8234037: Improve Object Identifier Processing
 - 8234599: PPC64: Add support on recent CPUs and Linux for JEP-352
 - 8234228: AArch64: Some temp vars in string_compare intrinsics for processing the last 4 chars (LU/UL) are no use
 - 8230305: Cgroups v2: Container awareness
 - 8236700: Upgrading JSZip from v3.1.5 to v3.2.2
 - 8236901: 8232759 missed a test case
 - 8237201: ZGC: Remove unused ZRelocationSetSelector::fragmentation()
 - 8237200: ZGC: Rename ZBackingPath to ZMountPoint
 - 8237199: ZGC: Rename ZBackingFile to ZPhysicalMemoryBacking
 - 8237198: ZGC: Share multi-mapping code in ZBackingFile
 - 8236701: [TESTBUG] compiler/loopopts/superword/Vec_MulAddS2I.java uses wrong flag -XX:-SuperWord
 - 8236992: AArch64: remove redundant load_klass in itable stub
 - 8216012: Infinite loop in RSA KeyPairGenerator
 - 8236878: Use atomic instruction to update StringDedupTable's entries and entries_removed counters
 - 8236132: Add missing properties to msi installers
 - 8232077: Investigate if default behavior should allow downgrade scenario
 - 8233578: Document configurable parameters of msi packages
 - 8236873: Worker has a deadlock bug
 - 8235678: Remove unnecessary calls to Thread::current() in MutexLocker calls
 - 8236111: narrow allowSmartActionArgs disabling
 - Merge
 - Added tag jdk-15+6 for changeset ef7d53b4fccd
 - 8235762: JVM crash in SWPointer during C2 compilation
 - 8235959: Update --release 14 symbol information up to JDK 14 b31
 - 8237223: Shenandoah: important flags should not be ergonomic for concurrent class unloading
 - 7143743: Potential memory leak with zip provider
 - Merge
 - 8237214: fix for JDK-8236597 reintroduced wrong subexpression
 - 8223536: jdk/javadoc/doclet/MetaTag/MetaTag.java still fails when run across midnight
 - 8237217: Incorrect G1StringDedupEntry type used in StringDedupTable destructor
 - 8213222: remove RMIConnectorServer.CREDENTIAL_TYPES
 - 8236921: Add build target to produce a JDK image suitable for a Graal/SVM build
 - 8236597: issues inferring type annotations on records
 - 8236917: TestInstanceKlassSize.java fails with "The size computed by SA for java.lang.Object does not match"
 - 8236968: jmap -clstats fails to work after JDK-8232759
 - 8237007: Shenandoah: assert(_base == Tuple) failure during C2 compilation
 - 8236721: C2 should better optimize not-equal integer comparisons
 - 8230591: AArch64: Missing intrinsics for Math.ceil, floor, rint
 - 8237182: Update copyright header for shenandoah and epsilon files
 - 8236682: Javac generates a redundant FieldRef constant for record fields
 - 8232419: Improve Registry registration
 - 8233002: Further enhance datagram socket support
 - 8231780: Better TLS messaging support
 - 8220465: Use shadow regions for faster ParallelGC full GCs
 - 8235435: Remove (obsolete) @author info from javadoc source and tests
 - 8229994: assert(false) failed: Bad graph detected in get_early_ctrl_for_expensive
 - 8235341: Improve WorkerDataArray API to disallow separate instantiation of sub-items
 - 8235346: [Redo] 8235247: WorkerDataArray leaks C heap memory for associated work items
 - 8228448: Jconsole can't connect to itself
 - 8235456: Minimal VM is broken after JDK-8212160
 - 8233948: AArch64: Incorrect mapping between OptoReg and VMReg for high 64 bits of Vector Register
 - 8235369: Class.toGenericString need to be updated for records
 - 8224630: ElementScannerN, N > 9 should scan type parameters
 - Merge
 - 8212160: JVMTI agent crashes with "assert(_value != 0LL) failed: resolving NULL _value"
 - 8235433: Problem list JdwpListenTest.java and JdwpAttachTest.java on Windows
 - 8222756: Plural support in CompactNumberFormat
 - 8235413: com.sun.net.httpserver.BasicAuthenticator.charset is protected field
 - 8212780: Packaging Tool Implementation
 - 8235360: Update JDWP, JDI and Instrumentation specs for Record attribute
 - 8232681: ArrayIndexOutOfBoundsException with text blocks in javac when using -Xlint
 - 8235250: Create (test) abstraction for allocating objects that is immune to removal by optimizations
 - 8234391: C2: Generic vector operands
 - Added tag jdk-14+26 for changeset 288777cf0702
 - 8233016: javax.crypto.Cipher throws NPE for the given custom CipherSpi and Provider
 - 8234267: DelegationPermission implementation doesn't completely follow the updated specification
 - 8234906: [TESTBUG] TestDivZeroCheckControl fails for client VMs due to Unrecognized VM option LoopUnrollLimit
 - 8234288: Turkey Time Zone returns incorrect time zone name
 - 8235288: AVX 512 instructions inadvertently used on Xeon for small vector width operations
 - 8235356: [TESTBUG] Disable 'producer is alive' check in JFR TestCrossProcessStreaming
 - 8225054: Compiler implementation for records
 - 8235355: Shenandoah: Resolve deadlock between OOM handler and nmethod lock
 - 8234060: Potential memory reordering problem in JfrBuffer flush mechanism
 - 8235179: [TESTBUG] DynamicArchiveRelocationTest.java fails with 'runtime archive relocation start' missing
 - 8235337: Shenandoah: Fix evac OOM scoping for concurrent class unloading
 - 8235273: nmethodLocker not needed for COMPILED_METHOD_UNLOAD events
 - 8233527: Update Lookup::hasPrivateAccess and Lookup::defineClass spec w.r.t. full power lookup
 - 8235347: [Backout] 8235247: WorkerDataArray leaks C heap memory for associated work items
 - 8235193: (dc) Remove JNI overhead from DatagramChannel.send implementation
 - 8234355: Buffer overflow in jcmd GC.class_stats due to too many classes
 - 8235247: WorkerDataArray leaks C heap memory for associated work items
 - 8234397: add OS uptime information to os::print_os_info output
 - 8234696: tools/jlink/plugins/VendorInfoPluginsTest.java times out
 - 8234742: Improve handshake logging
 - 8235257: Split 'assert(loader != NULL && oopDesc::is_oop(loader), "loader must be oop")'
 - 8235325: build failure on Linux after 8235243
 - 8234922: No compilation error reported not reported for a binding variable when loop broken with label
 - 8234899: Compiler reports AssertionError for conditional operator ? : and pattern matching for instanceof
 - 8235243: handle VS2017 15.9 and VS2019 in abstract_vm_version
 - 8234791: Fix Client VM build for x86_64 and AArch64
 - 8234616: assert(0 <= i && i < _len) failed: illegal index in PhaseMacroExpand::expand_macro_nodes()
 - 8129092: compiler/intrinsics/classcast/NullCheckDroppingsTest.java testVarClassCast() can fail
 - 8235221: Fix ProblemList.txt for sun/tools/jhsdb/HeapDumpTestWithActiveProcess.java
 - 8235263: Revert TLS 1.3 change that wrapped IOExceptions
 - 8234779: Provide idiom for declaring classes noncopyable
 - 8235260: Shenandoah: Don't allow recycle-assist until concurrent roots are done
 - 8213415: BitMap::word_index_round_up overflow problems
 - 8235280: UnProblemList vmTestbase/nsk/jvmti/GetThreadState/thrstat001/TestDescription.java
 - 8234923: Missed call_site_target nmethod dependency for non-fully initialized ConstantCallSite instance
 - 8231430: C2: Memory stomp in max_array_length() for T_ILLEGAL type
 - 8234662: Sweeper should keep current nmethod alive before yielding for ICStub refills
 - 8234426: Sweeper should not CompiledIC::set_to_clean with ICStubs for is_unloading() nmethods
 - 8235255: ProblemList javax/net/ssl/templates/SSLSocketSSLEngineTemplate.java
 - 8234796: Refactor Handshake::execute to take a more complex type than ThreadClosure
 - 8234964: failure_handler: gather more environment information on Windows, Solaris and Linux
 - 8234656: Improve granularity of verifier logging
 - 8234543: ZGC: Parallel pre-touch
 - 8233116: Escape Sequences For Line Continuation and White Space (Preview)
 - 8234824: java/nio/channels/SocketChannel/AdaptSocket.java fails on Windows 10
 - 8234823: java/net/Socket/Timeouts.java testcase testTimedConnect2() fails on Windows 10
 - 8216041: [Event Request] - Deoptimization
 - 8234741: enhance os::get_core_path on macOS
 - 8233299: Implementation: JEP 365: ZGC on Windows
 - 8234822: Limit ZGC jtreg-support to Windows 2019 Server
 - 8234617: C1: Incorrect result of field load due to missing narrowing conversion
 - Merge
 - Merge
 - 8235218: Minimal VM is broken after JDK-8173361
 - 8234744: KeyStore.store can write wrong type of file
 - 8235183: Remove the "HACK CODE" in comment
 - 8223252: Update Javadoc help page with new search features
 - 8233799: Review the need for overview.html in the java.time package
 - 8173658: JvmtiExport::post_class_unload() is broken for non-JavaThread initiators
 - 8173361: various crashes in JvmtiExport::post_compiled_method_load
 - 8234587: Rename the SurvRateGroup class to G1SurvRateGroup
 - 8234586: Rename survRateGroup.?pp files to g1SurvRateGroup.?pp
 - 8234179: Move HeapRegion::_recorded_rs_length/_predicted_elapsed_time_ms into G1CollectionSet
 - 8234574: Rename prediction methods in G1Analytics
 - 8231579: G1's incremental calculation of region elapsed time always uses the same age group for prediction
 - 8233588: Clean up SurvRateGroup
 - 8233919: Incrementally calculate the occupied cards in a heap region remembered set
 - 8234078: Missing license headers in a few javac files
 - 8233524: Wrong module name for \"package P is declared in the unnamed module, but module M does not read it\"
 - 8234149: Several regression tests do not dispose Frame at end
 - 8234147: Avoid looking up standard charsets in core libraries
 - 8234541: C1 emits an empty message when it inlines successfully
 - 8234805: (dc) Remove JNI upcall from DatagramChannel.receive implementation
 - 8230385: [cds] No message is logged when shared image cannot be used due to mismatched configuration
 - 8234671: JFR api/consumer/recordingstream/TestStart.java failed due to timeout at testStartTwice()
 - 8232828: AArch64: compiler/c2/aarch64/TestVolatilesG1.java fails after JDK-8225776
 - 8234086: VM operation can be simplified
 - 8234520: ZGC: C2: Oop instance cloning causing skipped compiles
 - 8234821: remove unused functions from libjli
 - 8233998: New young regions registered too early in collection set
 - 8227434: G1 predictions may over/underflow with high variance input
 - 8227739: Merge cost predictions for scanning cards and log buffer entries
 - 8234893: ARM32: build failure after JDK-8234387
 - 8234625: hs test serviceability/sa/ClhsdbCDSCore.java fails on macOS 10.15
 - 8234723: javax/net/ssl/TLS tests support TLSv1.3
 - 8234724: javax/net/ssl/templates/SSLSocketSSLEngineTemplate.java supports TLSv1.3
 - 8233223: Add Amazon Root CA certificates
 - 8233307: MulticastSocket getOption(IP_MULTICAST_IF) returns interface when not set
 - 8232594: Make the output of the JFR command duration more user friendly
 - 8233185: HttpServer.stop() blocks indefinitely when called on dispatch thread
 - 8234888: EventStream::close doesn't abort streaming thread
 - 8234583: PrintAssemblyOptions isn't passed to hsdis library
 - 8234894: [TESTBUG] TestEliminateLocksOffCrash fails for client VMs due to Unrecognized VM option EliminateLocks
 - 8210058: Algorithmic Italic font leans opposite angle in Printing
 - 8234786: Fix for JDK-8214578 breaks OS X 10.12 compatibility
 - 8230235: Rendering HTML with empty img attribute and documentBaseKey cause Exception
 - 8234769: Duplicate attribution in freetype.md
 - 8227324: Upgrade to freetype 2.10.1
 - 8193544: Regression automated test '/open/test/jdk/javax/swing/JDialog/Transparency/TransparencyTest.java' fails
 - 8233696: [TESTBUG]Some jtreg tests fail when CAPS_LOCK is ON
 - 8234385: [TESTBUG] java/awt/EventQueue/6980209/bug6980209.java fails in linux nightly
 - Merge
 - 8190763: Class cast exception on (CompoundEdit) UndoableEditEvent.getEdit()
 - 8234332: [TESTBUG] java/awt/Focus/DisposedWindow/DisposeDialogNotActivateOwnerTest/DisposeDialogNotActivateOwnerTest.java fails on linux-x64 nightly
 - Merge
 - 8233707: systemScale.cpp could not compile with VS2019
 - 8234381: API docs should mention special handling of enums in serialization
 - 8234377: new BitArray(0).toString() throws ArrayIndexOutOfBoundsException
 - 8233497: Optimize default method generation by data structure reuse
 - 8232533: G1 uses only a single thread for pretouching the java heap
 - 8233272: The Class.forName specification should be updated to match the long-standing implementation with respect to class linking
 - 8234323: NULL-check return value of SurfaceData_InitOps on macosx
 - 8234321: Call cache flush after generating trampoline
 - 8234499: [Graal] compiler/compilercontrol/CompilationModeHighOnlyTest.java test fails with timeout
 - Added tag jdk-14+24 for changeset 438337c846fb
 - 8147017: Platform.isGraal should be removed
 - 8234358: Update ProblemList entry for NashornPopFrameTest
 - 8234184: [TESTBUG] java/awt/Mouse/EnterExitEvents/ModalDialogEnterExitEventsTest.java fails in Windows
 - 8231954: Test compiler/codegen/TestCharVect2.java only works with server VMs
 - 8233922: Service binding augments module graph with observable incubator modules
 - 8215355: Object monitor deadlock with no threads holding the monitor (using jemalloc 5.1)
 - 8220074: Clean up GCC 8.3 errors in LittleCMS
 - 8233462: serviceability/tmtools/jstat tests times out with -Xcomp
 - 8234304: runtime/cds/appcds/javaldr tests should use driver mode
 - 8234324: ARM32 build broken after 8231610
 - 8233193: Incorrect bailout from possibly_add_compiler_threads
 - 8233141: DatagramSocket.send doesn't specify exception thrown when no target address
 - 8233787: Break cycle in vm_version* includes
 - 8234248: More VectorSet cleanups
 - 8234107: Several AWT modal dialog tests failing on Linux after JDK-8231991
 - 8232433: [macos 10.15] java/awt/Window/LocationAtScreenCorner/LocationAtScreenCorner.java may fail
 - 8233634: [TESTBUG] Swing text test bug4278839.java fails on macos
 - 8233986: ProblemList javax/swing/plaf/basic/BasicTextUI/8001470/bug8001470.java for windows-x64
 - 8231991: Mouse wheel change focus on awt/swing windows
 - 8233910: java/awt/ColorClass/AlphaColorTest.java is failing intermittently in nightly lnux-x64 system
 - 8233404: System property to set the number of PBE iterations in JCEKS keystores
 - 8234512: Missing pieces from JDK-8224816
 - 8230876: baseline cleanups from Async Monitor Deflation v2.0[789]
 - 8234438: Remove some CMS leftovers
 - 8234437: Remove CollectedHeap::safe_object_iterate()
 - 8234383: Test TestBiasedLockRevocationEvents.java assumes -XX:UseBiasedLocking is enabled
 - 8234382: Test tools/javac/processing/model/testgetallmembers/Main.java using too small heap
 - 8234361: ZGC: Move heuristics code in ZWorker to ZHeuristics
 - 8234338: ZGC: Improve small heap usage
 - 8234312: ZGC: Adjust warmup criteria
 - 8234379: ZGC: Do not resize TALBs unless -XX:ResizeTLAB is enabled
 - 8231259: (dc) DatagramChannel::disconnect re-binds socket to the wildcard address (macOS)
 - 8231460: Performance issue (CodeHeap) with large free blocks
 - 8230873: [AIX] GUI app does not work with UTF-8 locale on minimum software requirements
 - 8233113: ARM32: assert on UnsafeJlong mutex rank check
 - 8233833: ProblemList java/awt/Frame/FrameLocation/FrameLocation.java for linux-x64
 - 8233657: Intermittent NPE in Component.validate()
 - 8214578: [macos] Problem with backslashes on macOS/JIS keyboard: Java ignores system settings
 - 8233712: Limit default tests jobs based on ulimit -u setting
 - 8233219: NMT output on AIX misses some categories
 - 8234274: [BACKOUT] JDK-8204128 NMT might report incorrect numbers for Compiler area
 - 8234272: ProblemList runtime/NMT/HugeArenaTracking.java
 - 8214904: Test8004741.java failed due to "Too few ThreadDeath hits; expected at least 6 but saw only 5"
 - 8233280: Remove GCLockerInvokesConcurrent
 - 8234208: Logging reports zero total refined cards under "Before GC RS summary"
 - 8204128: NMT might report incorrect numbers for Compiler area
 - 8234011: (zipfs) Memory leak in ZipFileSystem.releaseDeflater()
 - 8234232: [TESTBUG] gc/shenandoah/jvmti/TestHeapDump.java fails with -Xcomp
 - 8234245: sun/security/lib/cacerts/VerifyCACerts.java fails due to wrong checksum
 - 8234188: AIX build broken after 8220310
 - 8232019: Add LuxTrust certificate updates to the existing root program
 - 8233549: Thread interrupted state must only be accessed when not in a safepoint-safe state
 - 8214024: Remove the default keytool -keyalg value
 - 8233888: jdk.vm.ci.hotspot.test.VirtualObjectLayoutTest.testFormat(): Unexpected error verifying
 - 8233912: aarch64: minor improvements of atomic operations
 - 8234196: [TESTBUG] DynamicArchiveRelocationTest.java missing "ArchiveRelocationMode == 1 ...."
 - 8234127: BasicHashtable does not support small table_size
 - 8234183: [TESTBUG] tools/javac/api/TestModuleUnnamedPackage.java fails to compile
 - 8233841: Update Graal
 - 8232244: [TESTBUG] Incorrect comment in TestClassUnloadEvent.java
 - 8233989: Create an IPv4 version of java/net/MulticastSocket/SetLoopbackMode.java
 - 8233860: AfterClose.java test incorrectly handles IP_MULTICAST_IF
 - 8233686: XML transformer uses excessive amount of memory
 - 8146298: (dc spec) connect and disconnect methods should specify that they may block
 - 8234080: jdk/nio/zipfs/CRCWriteTest.java fails
 - 8234003: Improve IndexSet iteration
 - 8233920: MethodHandles::tryFinally generates illegal bytecode for long/double return type
 - 8234133: VM build broken due to memory/archiveUtils.inline.hpp
 - Added tag jdk-14+23 for changeset 15936b142f86
 - 8231610: Relocate the CDS archive if it cannot be mapped to the requested address
 - 8234130: Zero VM build broken after JDK-8233913
 - 8233096: Update javax.lang.model for switch expressions
 - 8232588: G1 concurrent System.gc can return early or late
 - 8231915: two JDI tests interfere with each other
 - 8231635: SA Stackwalking code stuck in BasicTypeDataBase.findDynamicTypeForAddress()
 - 8226795: compiler/tiered/Level2RecompilationTest.java fails when XX:TieredStopAtLevel=1/2/3 is set
 - 8225756: [testbug] compiler/loopstripmining/CheckLoopStripMining.java sets too short a SafepointTimeoutDelay
 - 8220312: Implementation: NUMA-Aware Memory Allocation for G1, Logging (3/3)
 - 8220311: Implementation: NUMA-Aware Memory Allocation for G1, Survivor (2/3)
 - 8220310: Implementation: NUMA-Aware Memory Allocation for G1, Mutator (1/3)
 - 8214483: Remove algorithms that use MD5 or DES from security requirements
 - 8234025: Elements.getPackageElement(ModuleElement,CharSequence) returns null for unnamed package
 - 8234079: ZipFileInputStreamSkipTest.java runs zero test
 - 8233913: Remove implicit conversion from Method* to methodHandle
 - 8233731: repeated typo "fro" for "for"
 - 8232365: Implementation for JEP 363: Remove the Concurrent Mark Sweep (CMS) Garbage Collector
 - 8214239: Missing x86_64.ad patterns for clearing and setting long vector bits
 - 8231084: Large performance regression in SwingMark TextArea in 14-b13
 - 8229935: [TEST_BUG]: bug8132119.java inconsistently positions text
 - 8233649: Update ProblemList.txt to exclude failing headful tests on macos
 - 8233583: ProblemList javax/swing/JWindow/ShapedAndTranslucentWindows/ShapedTranslucentPerPixelTranslucentGradient.java & ShapedPerPixelTranslucentGradient.java failing incosistently in linux-x64
 - Merge
 - 8233422: Extra space in the title of the HTML javadoc page
 - 8232734: [TESTBUG] avoid using JDK symbols in ExtraSymbols.symbols.txt
 - 8233091: Backout JDK-8212117: Class.forName loads a class but not linked if class is not initialized
 - 8233519: Put java/nio/channels/DatagramChannel/Unref.java on the problem list
 - 8233520: Shenandoah: do not sleep when thread is attaching
 - Merge
 - 8233291: [TESTBUG] tools/jlink/plugins/VendorInfoPluginsTest.java fails with debug or non-server VMs
 - 8233097: Fontmetrics for large Fonts has zero width
 - 8232984: Upgrading Joni License version to 2.1.16
 - 8233285: Demangling C++ symbols in jhsdb jstack --mixed
 - 8232973: Potential infinite loop in macOS hotspot agent
 - 8232951: TestG1ParallelPhases.java fails with phase NonYoungFreeCSet not found
 - 8233383: Various minor fixes
 - 8233381: Update copyright year in build system files
 - 8232367: Update the jdk/java/net/httpclient tests to RS TCK 1.0.3
 - 8230847: Trees.getScope may crash when invoked for statement inside switch
 - 8233466: aarch64: remove unnecessary load of mdo when profiling return and parameters type
 - 8234807: [TESTBUG] LoopRotateBadNodeBudget fails for client VMs due to Unrecognized VM option PartialPeelNewPhiDelta
 - 8223196: java/nio/channels/spi/SelectorProvider/inheritedChannel/InheritedChannelTest.java fails on Solaris SPARC
 - 8234645: ARM32: C1: PatchingStub for field access: not enough bytes
 - 8234891: AArch64: Fix build failure after JDK-8234387
 - 8234725: sun/security/ssl/SSLContextImpl tests support TLSv1.3
 - Added tag jdk-14+25 for changeset 17d242844fc9
 - 8232446: logging enhancement for rmi when socket closed
 - 8233018: Add a new test to verify that DatagramSocket is not interruptible
 - 8234799: javadoc of java.util.Arrays.compare(T[] a, T[] b) misses the word "less"
 - 8234917: Explicitly discuss java.lang.Enum in Class.isEnum spec
 - 8228720: Shenandoah: Implementation of concurrent class unloading
 - 8234781: Update description of InvalidClassException to include more conditions
 - 8223378: CSS solution for navbar problem with <a> elements is not ideal
 - 8141637: Parallelize single threaded heap region iteration during Pre Evacuate Collection Set
 - 8234897: 8234748: Clean up atomic and orderAccess includes - part 2
 - 8220376: C2: Int >0 not recognized as !=0 for div by 0 check
 - 8234748: Clean up atomic and orderAccess includes
 - Merge
 - 8233301: Implementation of JEP 366: Deprecate the ParallelScavenge + SerialOld GC Combination
 - 8234525: enable link-time section-gc for linux s390x to remove unused code
 - 8233870: JFR TestSetEndTime.java times out - onClose() is never called
 - 8234613: JavaThread can escape back to Java from an ongoing handshake
 - 8234768: Shenandoah: Streamline enqueueing runtime barriers
 - 8234270: [REDO] JDK-8204128 NMT might report incorrect numbers for Compiler area
 - 8234809: set relro in linker flags when building with gcc
 - 8231826: Implement javac changes for pattern matching for instanceof
 - 8234798: Build failure after atomic changes in JDK-8234563
 - 8234619: ZGC: gc/z/TestSmallHeap.java failure with Out Of Memory
 - 8234729: Javac should eagerly change code generation for method references to avert IllegalAccessError in future
 - 8221372: Test vmTestbase/nsk/jvmti/GetThreadState/thrstat001/TestDescription.java times out
 - 8179320: File.getUsableSpace() returns a negative number on very large file system
 - 8234681: Remove UseJVMCIClassLoader logic from JVMCI code
 - 8234684: JFR crashes when rotating the JFR output during assertion failure
 - 8234359: [JVMCI] invalidate_nmethod_mirror shouldn't use a phantom reference
 - 8233197: Invert JvmtiExport::post_vm_initialized() and Jfr:on_vm_start() start-up order for correct option parsing
 - 8234531: Remove CMS code from CLDG and safepoint cleanup
 - 8234602: ZGC: Windows compile error in ZHeuristic
 - 8234009: ZGC: Move resurrection unblock to before the _unload.purge() call
 - 8234010: ZGC: Change ZResurrection to use Atomic::load/store
 - 8234740: Harmonize parameter order in Atomic - cmpxchg
 - 8234739: Harmonize parameter order in Atomic - xchg
 - 8234738: Harmonize parameter order in Atomic - sub
 - 8234737: Harmonize parameter order in Atomic - add
 - 8234736: Harmonize parameter order in Atomic - store
 - 8234562: Move OrderAccess::release_store*/load_acquire to Atomic
 - 8234703: JFR TestOutOfProcessMigration.java should clean up files
 - 8234573: ZGC: Enable ZVerifyMarking by default in debug builds
 - 8234433: TestUnloadEventClassCount fails with "assert(SafepointSynchronize::is_at_safepoint()) failed: invariant"
 - 8234629: remove unused functions from libnet
 - 8234509: Race in macOS os::processor_id()
 - 8233029: Obsolete flag GCTaskTimeStampEntries
 - 8233232: AArch64: Shenandoah: jni_fast_GetLongField is broken
 - 8233303: Shenandoah: verifier assert erroneously uses byte_size_in_exact_unit
 - Added tag jdk-14+21 for changeset c16ac7a2eba4
 - 8233266: Remove unnecessary fence in restore_unshareable_info
 - 8232950: SUNPKCS11 Provider incorrectly check key length for PSS Signatures
 - 8231451: ZipFileInputStream::skip handling of negative values with STORED entries
 - 8226511: Implement JFR Event Streaming
 - 8233159: Method::result_type should use calculated value in constMethod
 - 8233202: exclude javax/swing/plaf/basic/BasicGraphicsUtils/8132119/bug8132119.java
 - 8233078: fix minimal VM build on Linux ppc64(le)
 - 8229815: Upgrade Jline to 3.12.1
 - 8231950: keytool -ext camel-case shorthand not working
 - 8229516: Thread.isInterrupted() always returns false after thread termination
 - 8233430: (sc) Socket adaptor restoring of blocking mode can override exception if socket closed
 - 8232673: (dc) DatagramChannel socket adaptor issues
 - 8233359: Add global sized operator delete definitions
 - 8162520: (fs) FileStore should support file stores with > Long.MAX_VALUE capacity
 - 8231632: HttpURLConnection::usingProxy could specify that it may lazily evaluate the fact
 - 8233363: Clarify the DumpSharedSpaces condition in InstanceKlass::verify_on
 - 8227003: Add high-level JIT compilation mode control mechanism
 - 8231026: Miscellaneous changes imported from jsr166 CVS 2019-11
 - 8231592: Clarify that ConcurrentHashMap compute methods mapping functions execute at most once
 - 8233387: Shenandoah: passive mode should disable pacing ergonomically
 - 8233386: Initialize NULL fields for unused decorations
 - 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
 - 8230019: [REDO] compiler/types/correctness/* tests fail with "assert(recv == __null || recv->is_klass()) failed: wrong type"
 - 8232724: Remove indirection with calling JNU_NewStringPlatform
 - 8233165: Shenandoah:SBSA::gen_load_reference_barrier_stub() should use pointer register for address on aarch64
 - 8232591: AArch64: Add missing match rules for smaddl, smsubl and smnegl
 - 8233035: Update JVMCI
 - 8233137: runtime/ErrorHandling/VeryEarlyAssertTest.java fails after 8232080
 - 8173975: Lookup::in should not allow target class be primitive or array class
 - 8232748: Build static versions of certain JDK libraries
 - 8231766: Files.copy and Files.move do not honor requested compression method when copying or moving within the same zip file
 - 8233075: JFR - nmetods - misspelled in several places
 - 8232864: Classes generated at link time by GenerateJLIClassesPlugin are not reproducible
 - 8232080: jlink plugins for vendor information and run-time options
 - 8230400: Missing constant pool entry for a method in stacktrace
 - 8231365: ServicePermission::equals doesn't comply to the spec
 - 8228969: 2019-09-28 public suffix list update
 - 8086003: Test fails on OSX with java.lang.RuntimeException 'Narrow klass base: 0x0000000000000000, Narrow klass shift: 3' missing
 - 8231273: Upgrade CLDR to v36
 - 8232879: Writing out data with the Zip File System leads to a CRC failure
 - 8232118: Add JVM option to enable JVMCI compilers in product mode
 - 8232992: Shenandoah: Implement self-fixing interpreter LRB
 - 8232890: Remove bad Code attribute parsing code
 - 8232200: [macos 10.15] Windows in fullscreen tests jumps around the screen
 - 8232154: Update Mesa 3-D Headers to version 19.2.1
 - 8226892: ActionListeners on JRadioButtons don't get notified when selection is changed with arrow keys
 - 8175984: ICC_Profile has un-needed, not-empty finalize method
 - 8213119: [macos] java/awt/GraphicsDevice/CheckDisplayModes.java fails
 - 8231565: More node budget asserts in fuzzed tests
 - 8232604: ZGC: Make ZVerifyViews mapping and unmapping precise
 - 8232650: ZGC: Add initialization hooks for OS specific code
 - 8232651: Add implementation of os::processor_id() for Windows
 - 8232649: ZGC: Add callbacks to ZMemoryManager
 - 8232648: ZGC: Move ATTRIBUTE_ALIGNED to the front of declarations
 - 8232602: ZGC: Make ZGranuleMap ZAddress agnostic
 - 8232601: ZGC: Parameterize the ZGranuleMap table size
 - 8212132: (dc) Remove DatagramChannelImpl finalize method
 - 8233027: OopMapSet::all_do does oms.next() twice during iteration
 - 8225464: Obsolete TraceNMethodInstalls flag
 - 8231570: (dc) Clarify implicit bind behavior of DatagramChannel
 - 8233021: Shenandoah: SBSC2::is_shenandoah_lrb_call should match all LRB shapes
 - 8233000: Mark vmTestbase/vm/mlvm/meth/stress/compiler/deoptimize test as stress test
 - 8232776: G1 should always take rs_length_diff into account when predicting rs_lengths
 - 8232777: Rename G1Policy::_max_rs_length as it is no maximum
 - 8232779: G1 current collection parallel time does not include optional evacuation
 - 8232083: Minimal VM is broken after JDK-8231586
 - 8232922: Add java/math/BigInteger/largeMemory/SymmetricRangeTests.java to ProblemList-Xcomp
 - 8232904: Update JVMCI
 - 8227317: [TESTBUG] jdk docker/TestDockerMemoryMetrics.java fails on systems w/o kernel memory accounting
 - 8166275: vm/mlvm/meth/stress/compiler/deoptimize keeps timeouting
 - 8230318: Better trust store usage
 - 8230459: Test failed to resume JVMCI CompilerThread
 - 8231841: AArch64: debug.cpp help() is missing an AArch64 line for pns
 - 8233958: Memory retention due to HttpsURLConnection finalizer that serves no purpose
 - 8233656: assert(d->is_CFG() && n->is_CFG()) failed: must have CFG nodes
 - 8233785: Incorrect JDK version is reported in hs_err log
 - 8233961: Problem list tools/jlink/JLinkReproducibleTest.java for windows-all
 - 8232860: Error formatting integer values with MessageFormat.format() using HOST provider
 - 8226297: Dual-pivot quicksort improvements
 - 8233880: Support compilers with multi-digit major version numbers
 - 8230661: ZGC: Stop reloading oops in load barriers
 - 8233797: ZGC: Unify naming convention for functions using atomics
 - 8233061: ZGC: Enforce memory ordering in segmented bit maps
 - 8233940: Preview API tests for String methods should use ${jdk.version} as -source arg
 - 8233946: Add @since 13 annotation to KerberosPrincipal.KRB_NT_ENTERPRISE field
 - 8233792: TestG1ParallelPhases.java fails with phase NonYoungFreeCSet not found (2)
 - 8233820: Test crashed with assert(phi->operand_count() != 1 || phi->subst() != phi) failed: missed trivial simplification
 - 8232853: AuthenticationFilter.Cache::remove may throw ConcurrentModificationException
 - 8233941: adlc should not generate Pipeline_Use_Cycle_Mask::operator=
 - 8233885: Test fails with assert(comp != __null) failed: Ensure we have a compiler
 - 8224817: Implementation of JEP 364: ZGC on macOS
 - 8233506: ZGC: the load for Reference.get() can be converted to a load for strong refs
 - 8233884: Avoid looking up standard charsets in security libraries
 - 8233900: [JVMCI] improve help text for EnableJVMCIProduct option
 - 8233529: loopTransform.cpp:2984: Error: assert(p_f->Opcode() == Op_IfFalse) failed
 - 8232684: Make switch expressions final
 - 8231863: Crash if classpath is read from @argument file and the main gets option argument
 - 8233868: Unproblem list sun/tools/jstat/jstatClassloadOutput1.sh
 - 8232735: Convert PrintJNIResolving to Unified Logging
 - 8233918: 8233498 broke build on SPARC
 - 8231757: [ppc] Fix VerifyOops. Errors show since 8231058
 - Merge
 - 8231324: Shenandoah: avoid duplicated weak root works during final traversal
 - 8232381: add result NULL-checking to freetypeScaler.c
 - 8232593: [TESTBUG] runtime/cds/CheckDefaultArchiveFile.java fails when cds is disabled
 - 8232084: HotSpot build failed with GCC 9.2.1
 - 8230869: [macos 10.15] The String "X Y Z" was not set to application's icon in the taskbar
 - 8232370: Refactor some com.sun.jdi tests to enable IDE integration
 - 8232573: Shenandoah: cleanup and add more logging for in-pause phases
 - 8232534: Shenandoah: guard against reentrant ShenandoahHeapLock locking
 - 8231999: Shenandoah: Traversal failed compiler/jsr292/CallSiteDepContextTest.java
 - 8232448: Suppress warnings on non-serializable non-transient instance fields in jdk.jdi
 - 8213239: Configure cannot handle command overrides with arguments
 - 8232112: MDO extra_data_lock leaks during class unloading
 - 8223558: Java does not render Myanmar script correctly
 - 8225279: Better XRender interpolation
 - 8232225: Rework the fix for JDK-8071483
 - 8232168: Fix non wide char canonicalization on Windows
 - 8233273: Update Graal
 - 8224159: JDWP IPv6 scope support
 - 8232921: assert(is_object_aligned(result)) failed: address not aligned
 - 8227006: [linux] Runtime.availableProcessors execution time increased by factor of 100
 - 8231631: sun/net/ftp/FtpURLConnectionLeak.java fails intermittently with NPE
 - 8205132: Degrade Thread.countStackFrames() to throw UOE
 - 8232806: Introduce a system property to disable eager lambda initialization
 - Merge
 - 8218628: Add detailed message to NullPointerException describing what is null
 - 8223998: Missing MakeDir in ExecuteWithLog
 - 8232162: Object reallocation in Deoptimization::fetch_unroll_info_helper should not depend on EliminateNestedLocks
 - 8134599: TEST_BUG: java/rmi/transport/closeServerSocket/CloseServerSocket.java fails intermittently with Address already in use
 - 8209824: Improve the code coverage for ThreadLocal
 - 8231859: Extra dash after the exception name in @throws clause of javadoc
 - Added tag jdk-14+19 for changeset 9b67dd88a931
 - 8232230: Suppress warnings on non-serializable non-transient instance fields in java.util.concurrent
 - 8232357: Compare version info of Santuario to legal notice
 - 8232207: Linux os::available_memory re-reads cgroup configuration on every invocation
 - 8232211: Remove dead code from os.hpp|cpp
 - 8230407: SocketPermission and FilePermission action list allows leading comma
 - 8232232: G1RemSetSummary::_rs_threads_vtimes is not initialized to zero
 - 8231754: [JVMCI] Make r27 unconditionally reserved in JVMCI
 - 8231449: HttpClient?s client ssl certificate authentication seems to be broken
 - 8232260: Remove g1 prefix in G1CollectedHeap::g1_hot_card_cache() getter
 - 8232106: [x86] C2: SIGILL due to usage of SSSE3 instructions on processors which don't support it
 - 8229919: Support JNI Critical functions in object pinning API on x86_32 platforms
 - Merge
 - 8232234: Suppress warnings on non-serializable non-transient instance fields in java.rmi
 - 8232051: Epsilon should warn about Xms/Xmx/AlwaysPreTouch configuration
 - 8232205: Shenandoah: missing "Update References" -> "Update Roots" tracing
 - 8212749: DecimalFormat.setGroupingSize(int) allows setting negative grouping size
 - Merge
 - 8232147: Remove notproduct option IgnoreLockingAssertions
 - 8223158: Docked MacBook cannot start any Java Swing applications
 - 8231584: Deadlock with ClassLoader.findLibrary and System.loadLibrary call
 - 8230865: [TESTBUG] jdk/jfr/event/io/EvilInstrument.java fails at-run shell MakeJAR.sh target
 - 8225435: Upgrade IANA Language Subtag Registry to the latest for JDK14
 - 8232135: Add diagnostic output to test java/util/ProcessBuilder/Basic.java
 - 8231427: Warning cleanup in tests of java.io.Serializable
 - 8225654: rework vmTestbase/jit/graph
 - Merge
 - 8232150: aarch64 build broken after JDK-8232050
 - 8231659: [JVMCI] Could not work PrintAssembly for JVMCI installed code
 - 8232120: com/sun/jdi/InvokeTest fails with -Xcheck:jni: assert(k->is_instance_klass()) failed: cast to InstanceKlass
 - 8231790: Provide better FileSystemProviders
 - 8230967: Improve Registry support of clients
 - 8231422: Setting JEP 290 Filter via System Property May Be Ignored
 - 8231507: Update Apache Santuario (XML Signature) to version 2.1.4
 - 8226897: Provide object age with JFR OldObjectSample event
 - 8234432: AOT tests failing with 'used 'epsilon gc' is different from current 'g1 gc'' after CMS removal
 - 8234622: [TESTBUG] ArchivedModuleCompareTest.java fails with -vmoptions:-Xlog:cds
 - 8233446: Improve error handling when specified dynamic archive doesn't exist
 - 8234429: appcds/dynamicArchive tests crashing with Graal
 - 8087198: G1 card refinement: batching, sorting
 - 8234687: change javap reporting on unknown attributes
 - 8229209: [TESTBUG] test for cross-process JFR event streaming
 - 8233956: MethodHandles.dropArguments javadoc lists parameters in wrong order
 - 8232170: FSInfo#getJarClassPath throws an exception not declared in its throws clause
 - 8231516: network QuickAckTest.java failed due to "SocketException: maximum number of DatagramSockets reached"
 - 8164993: (ch) ReadableByteChannel should note a possible IllegalArgumentException
 - 8233700: EventStream not closed
 - 8234544: ObjectSynchronizer::FastHashCode() cleanups from Async Monitor Deflation project
 - 8233296: MulticastSocket getOption/setOption inverts the value of IP_MULTICAST_LOOP
 - 8169467: GetLocalInstance returns JVMTI_ERROR_TYPE_MISMATCH (rather than JVMTI_ERROR_INVALID_SLOT) on static method
 - 8233597: Clean up code in G1Analytics::compute_pause_time_ratio
 - 8233702: Introduce helper function to clamp value to range
 - 8234000: Make HeapRegion::bottom/end/hrm_index const
 - 8233997: Some members of HeapRegion are not cleared in HeapRegion::hr_clear()
 - 8233306: Sort members in G1's HeapRegion after removal of Space dependency
 - 8234339: replace JLI_StrTok in java_md_solinux.c
 - 8234089: (zipfs) Remove classes JarFileSystemProvider and JarFileSystem
 - 8230611: infinite loop in LogOutputList::wait_until_no_readers()
 - 8233954: UnsatisfiedLinkError or NoSuchAlgorithmException after removing sunec.dll
 - 8026393: jarsigner never shows a warning in badKeyUsage case
 - 8233548: Update CUP to v0.11b
 - 8234290: compiler/c2/Test6857159.java times out and fail to clean up files
 - 8234051: doclet crashes if HTML files in module doc-files directories
 - 8234058: runtime/CompressedOops/CompressedClassPointers.java fails with 'Narrow klass base: 0x0000000000000000' missing from stdout/stderr
 - 8068184: Fix for JDK-8032832 caused a deadlock
 - 8234083: DatagramSocket should report SO_BROADCAST as a supported option
 - 8233847: (sctp) Flx link-local IPv6 scope handling and test cleanup
 - 8232097: (sctp) SctpNet.init() results in java.lang.UnsatisfiedLinkError
 - 8232101: (sctp) Add minimal sanity tests for SCTP
 - 8233845: (sctp) Relax assertion in sun.nio.ch.sctp.AssociationChange::association
 - 8234335: Remove line break in class declaration in java.base
 - 8234103: DatagramSocketImpl::socket is not needed
 - 8233801: GCMEmptyIv.java test fails on Solaris 11.4
 - 8228609: G1 copy cost prediction uses used vs. actual copied byte
 - 8234501: remove obsolete NET_ReadV
 - 8232107: support ThreadPriorityPolicy flag on AIX
 - 8232182: RedefineNestmateAttr/TestNestmateAttr.java failes due to ObjectCollectedException
 - 8231988: Unexpected test result caused by C2 IdealLoopTree::do_remove_empty_loop
 - 8232224: [TESTBUG] problemlist JFR TestLargeRootSet.java
 - 8231981: Refactor test definitions to split RT and SVC tests
 - 8232165: Reduce allocations in ValueStack copying constructor
 - 8227231: JDWP help information shows use of obsolete Xdebug flag
 - 8232176: Shenandoah: new assert in ShenandoahEvacuationTask is too strong
 - 8218543: ThreadsList handling during error reporting can crash
 - 8231717: Improve performance of charset decoding when charset is always compactable
 - 8232167: Visual Studio install found through --with-tools-dir value is discarded
 - 8232134: Change to Visual Studio 2017 15.9.16 for building on Windows at Oracle
 - 8232133: Change to GCC 8.3 for building on Linux at Oracle
 - 8232116: ZGC: Remove redundant ZLock in ZNMethodTable
 - 8232046: AArch64 build failure after JDK-8225681
 - 8231769: Test tools/javac/tree/MakeTypeTest.java fails with -Xcheck:jni
 - 8232151: Minimal VM build broken after JDK-8232050
 - 8229810: [macos] NullPointerException getting bounds of GraphicsConfiguration
 - 8165056: move JIT Compiler related files from runtime/ to compiler/ directory
 - 8231947: Shenandoah: cleanup ShenandoahHumongousMoves flag treatment
 - 8232102: Shenandoah: print everything in proper units
 - 8232071: Avoid shared dictionary lookup when the class name is not shared
 - 8231986: [SA] Consolidate parts of the Linux and MacOSX versions of ps_core.c
 - 8232050: Improve inlining of Klass accessors
 - 8231720: Some perf regressions after 8225653
 - 8231139: Improved keystore support
 - 8232045: cleanup AIX 5.3 workarounds from libnio/ch/Net.c
 - 8231213: Migrate SimpleDateFormatConstTest to JDK Repo
 - 8231973: Update Graal
 - 8232078: Suppress warnings on non-serializable non-transient instance fields in java.datatransfer
 - 8232076: Suppress warnings on non-serializable non-transient instance fields java.naming
 - 8231595: [TEST] develop a test case for SuspendThreadList including current thread
 - Added tag jdk-14+18 for changeset e84d8379815b
 - 8231529: [TESTBUG] runtime/cds/appcds/dynamicArchive/DynamicLotsOfClasses.java shouldn't wrap SkippedException into Exception
 - 8231586: enlarge encoding space for OopMapValue offsets
 - 8231887: ComodoCA.java fails because certificate was revoked
 - 8231903: [Graal] Update com.oracle.mxtool.junit classes
 - 8232056: GetOwnedMonitorInfoWithEATest.java fails with ZGC: Heap too small
 - 8231990: Remove unnecessary else-if branch in Types.union
 - 8231202: Suppress warnings on non-serializable non-transient instance fields in serializable classes
 - 8231262: Suppress warnings on non-serializable instance fields in security libs serializable classes
 - 8231260: (dc) DatagramChannel::disconnect changes the port of the local address to 0 (lnx)
 - 8231974: Build fails if no common legal notices are present
 - 8230565: ZGC: Redesign C2 load barrier to expand on the MachNode level
 - 8232003: (fs) Files.write can leak file descriptor in the exception case
 - 8214560: Use {@systemProperty} for definitions of system properties (httpserver)
 - 8231770: Test java/util/zip/FlaterTest.java fails with -Xcheck:jni
 - 8230677: Should disable Escape Analysis if JVMTI capability can_get_owned_monitor_info was taken
 - 8231489: GC watermark_0_1 failed due to "metaspace.gc.Fault: GC has happened too rare"
 - 8231368: Suppress warnings on non-serializable non-transient instance fields in java.security.jgss
 - 8231737: Cleanup JvmtiRawMonitor code
 - 8231153: Improve concurrent refinement statistics
 - 8232006: Remove dead code from klassVtable
 - 8199136: Dead code in src/jdk.jcmd/share/classes/sun/tools/common/ProcessArgumentMatcher.java
 - 8225681: vmTestbase/nsk/jvmti/RedefineClasses/StressRedefine fails due a) MT-unsafe modification of inline cache
 - 8231666: ThreadIdTable::grow() invokes invalid thread transition
 - 8170299: Debugger does not stop inside the low memory notifications code
 - 8222829: DatagramSocket.setSoTimeout does not specify IAE when timeout is negative
 - 8230946: Clarify security manager behaviour of a connected DatagramSocket and DatagramChannel
 - 8230162: ScopeImpl.remove() has O(N) performance
 - 8231993: Remove redundant pkg_str param from is_shared_class_visible_for_classloader
 - 8231931: [TESTBUG] serviceability/sa/TestUniverse.java looks for wrong string with Shenandoah
 - 8231921: (se) SelectorImpl.register does not need to set the attachment when it is null
 - 8231355: Remove unused utility methods in libjava
 - 8231753: use more Posix functionality in aix os::print_os_info
 - 8185041: Incorrect GPL header in pnglibconf.h
 - 8234325: Delete unused vsync related code from the OGL pipeline on macOS
 - Merge
 - 8230597: Update GIFlib library to the 5.2.1
 - Merge
 - 8228825: Enhance ECDSA operations
 - 8228676: Cleanup the native code related to fonts on Unix
 - 8231751: on aix handle Power 9 in os::get_summary_cpu_info
 - 8231977: Discuss serializability of collections
 - 8229243: SunPKCS11-Solaris provider tests failing on Solaris 11.4
 - 8231289: Disentangle JvmtiRawMonitor from ObjectMonitor and clean it up
 - 8231902: Build of jdk.internal.vm.compiler.management/module-info.java.extra failed
 - 8231630: Optimize boot loader with no bootclasspath append entry
 - 8231946: Remove obsolete and unused ShenandoahVerifyObjectEquals flag
 - 8231932: Shenandoah: conc/par GC threads ergonomics overrides user settings
 - 8230043: Lazily load libverify
 - 8225694: Destination option missing in FlightRecorderMXBeanImpl
 - 8229900: RedefineDeleteJmethod.java fails with -Xcheck:jni
 - 8220217: Javadoc missing link to member method
 - 8231930: Windows build fails after JDK-8191521
 - 8231885: Fix/remove malformed assert in os_windows.cpp
 - 8231550: C2: ShouldNotReachHere() in verify_strip_mined_scheduling
 - 7124404: [macosx] no awt.multiClickInterval desktop property
 - 8227816: More Colorful ICC profiles
 - 8231620: assert(bol->is_Bool()) crash during split if due to FastLockNode
 - 8231895: Avoid String allocations in JVM_FindLoadedClass
 - 8231825: ZGC: Remove ZMaxHeapSize and ZMaxHeapSizeShift
 - 8231093: Document the ZIP FS properties noCompression and releaseVersion
 - 8223771: FileSystemProvider.newFileSystem(Path, Map) should throw IOException when called with a file that cannot be open
 - 8221092: UseAVX=3 has performance degredation on Skylake (X7) processors
 - 8215521: add microbenchmark to measure AccessController.getContext
 - 8216352: SA: ClhsdbLauncher should throw errors on Unrecognized commands
 - 8231161: Wrong return type in code sample in Collector API documentation
 - Merge
 - 8231768: Remove duplicate if/else in vmTestbase/nsk/share/jdi/Binder.java
 - 8231777: Remove extraneous @serial javadoc tag in NodeChangeEvent.java
 - 8231707: Improve Mutex inlining
 - 8231776: ZGC: Fix incorrect address space description
 - 8231774: ZGC: ZVirtualMemoryManager unmaps incorrect address
 - 8231335: [macos] Delete unused and partly implemented JOGL/Java2D bridge
 - 8222766: Shenandoah: streamline post-LRB CAS barrier (x86)
 - 8231552: ZGC: Refine address space reservation
 - 8231081: TestMetadataRetention fails due to missing symbol id
 - 8231949: [PPC64, s390]: Make async profiling more reliable
 - 8232005: [s390, PPC64] More exception checks missing in interpreter
 - 8232788: Move biased locking initalization
 - 8231953: Wrong assumption in assertion in oop::register_oop
 - 8231952: ARM32: Wrong assumption in assertion in LIRGenerator::atomic_xchg and LIRGenerator::atomic_add
 - 8232713: Update BCEL version to 6.3.1 in license file
 - 8231602: Deprecate Thread.suspend/resume for removal
 - 8232908: Shenandoah: compact heuristics has incorrect trigger "Free is lower than allocated recently"
 - 8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
 - 8231598: keytool does not export sun.security.mscapi
 - 8232613: Move Object.registerNatives into HotSpot
 - 8231968: getCurrentThreadAllocatedBytes default implementation s/b getThreadAllocatedBytes
 - Added tag jdk-14+20 for changeset 54ffb15c4839
 - 8232442: Suppress warnings on non-serializable non-transient instance fields in java.management.*
 - 8232881: Remove unnecessary InstanceKlass::casts
 - 8232882: GCC 4.8.5 build failure after JDK-8211073
 - 8232625: HttpClient redirect policy should be more conservative
 - 8232887: Remove SystemDictionary::has_checkPackageAccess
 - 8232834: RunTest sometimes fails to produce valid exitcode.txt
 - 8232771: Revert JDK-8230794 because of environment changes
 - 8232883: compiler/c2/CmpPNodeSubTest.java fails because test class name is wrong
 - 8231412: C2: InitializeNode::detect_init_independence() bails out on simple IR shapes
 - 8232874: Add missing test for 8230062
 - 8232873: Add missing test for 8220416
 - 8232768: Configuration with --disable-cds --enable-generate-classlist should be reported as an error
 - 8232770: Enable more warnings on solaris studio
 - 8211073: Remove -Wno-extra from Hotspot
 - 8231649: PPC64: Intrinsics for Math.ceil, floor, rint on Power
 - 8232571: Add missing SIGINFO signal
 - 8232592: <Unknown compiled code> is shown in jstack mixed mode
 - 8223697: jfr tool can't format duration values greater than 1 minute
 - 8232802: Shenandoah: transition between "cset" and "pinned_cset" does not require cancelled gc
 - 8232791: Shenandoah: passive mode should disable pacing
 - 8232617: Update the outdated code comments in java.lang.System class
 - 8232747: Shenandoah: Concurrent GC should deactivate SATB before processing weak roots
 - 8232778: Shenandoah: SBSA::arraycopy_prologue checks wrong register
 - 8223400: Replace some enums with static const members in hotspot/runtime
 - 8232757: VM fails to report an error for DumpLoadedClassList when cds is disabled
 - 8232692: [TESTBUG] compiler/aot/fingerprint/SelfChangedCDS.java fails when cds is disabled
 - 8232729: Shenandoah: assert ShenandoahHeap::cas_oop addresses are aligned
 - 8232730: Shenandoah: Traversal should not CAS the roots
 - 8232624: Java cannot start: NewStringPlatform missing
 - 8231587: Memory leak in WorkArounds.serializedForms
 - 8232639: Change module graph images to use SVG instead of PNG format
 - 8232712: Shenandoah: SIGBUS in load_reference_barrier_native
 - 8232569: Use test image from different jib profile for testing
 - 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
 - 8232572: Add hooks for custom output dir in Bundles.gmk
 - 8226585: Improve javac messages for using a preview API
 - 8232702: Shenandoah: gc/shenandoah/TestVerifyJCStress.java uses non-existent -XX:+VerifyObjectEquals
 - 8232575: Shenandoah: asynchronous object/region pinning
 - 8232674: Fix build and rename ShenandoahBarrierSet::oop_load_from_native_barrier
 - 8232239: ZGC: Inline ZCPU::count() and ZCPU:id()
 - 8232238: ZGC: Move ZList inline funtions to zList.inline.hpp
 - 8232237: ZGC: Move ZArray inline funtions to zArray.inline.hpp
 - 8232236: ZGC: Move ZThread inline funtions to zThread.inline.hpp
 - 8232235: ZGC: Move ZValue inline funtions to zValue.inline.hpp
 - 8231996: ZGC: Replace ZStatisticsForceTrace with check if JFR event is enabled
 - 8231940: ZGC: Print correct low/high capacity
 - 8231943: ZGC: Enable serviceability/dcmd/gc/RunGCTest
 - 8232001: ZGC: Ignore metaspace GC threshold until GC is warm
 - 8232195: Enable BigInteger tests: DivisionOverflow, SymmetricRangeTests and StringConstructorOverflow
 - 8232616: JVMCI_lock fails to get initialized when cds is disabled
 - 8232276: Problem list serviceability/sa/ClhsdbJstackXcompStress.java
 - 8232008: Shenandoah: C1 load barrier does not match interpreter version
 - 8232010: Shenandoah: implement self-fixing native barrier
 - 8231719: Correct contradictions in timeout range descriptions
 - 8225499: InetSocketAddress::toString not friendly to IPv6 literal addresses
 - 8232009: Shenandoah: C2 load barrier does not match interpreter version
 - 8232030: HelloDynamic.java fails with latest Graal
 - 8231563: ZGC: Fails to warn when user sets the max heap size to larger than 16TB
 - 8231713: x86_32 build failures after JDK-8226721 (Missing intrinsics for Math.ceil, floor, rint)
 - Added tag jdk-14+17 for changeset 5c83830390ba
 - 8231288: "jhsdb jmap" test needed to reproduce issues that used to be reproduced by JShellHeapDumpTest
 - 8231606: _method_ordering is not set during CDS dynamic dump time
 - 8231663: Incorrect GPL header in some RMI/SQL package-info.java files
 - 8231505: Bump required boot jdk version to 13
 - 8229022: BufferedReader performance can be improved by using StringBuilder
 - 8231671: Fix copyright headers in hotspot (missing comma after year)
 - 8231603: (se) Selector implementations do not need to use cancelledKeys
 - 8231626: DeoptimizeRandom should not be a product flag
 - 8231545: Suppress warnings on non-serializable instance fields in jdk.jshell module
 - 8231600: Avoid GCC 8 strncpy error in jdk.jdwp.agent
 - 8231594: Configure fails on some Linux systems
 - 8229333: java/io/File/SetLastModified.java timed out
 - 8231667: Shenandoah: Full GC should take empty regions into slices for compaction
 - 8231503: [TESTBUG] compiler/{jvmci,aot} tests should not run with GCs that do not support JVMCI/AOT
 - 8223869: Problem list java/awt/FontMetrics/MaxAdvanceIsMax.java on more platforms
 - 8191521: handle long relative path specified in -Xbootclasspath/a on windows
 - 8231665: 8231055 broke escapeAnalysis/TestSelfArrayCopy.java
 - 8209178: Proxied HttpsURLConnection doesn't send BODY when retrying POST request
 - 8231506: Fix some instabilities in a few networking tests
 - 8231296: ZGC: vmTestbase/nsk/jvmti/Allocate/alloc001/ fails
 - 8226721: Missing intrinsics for Math.ceil, floor, rint
 - 8231357: sun/security/pkcs11/Cipher/TestKATForGCM.java fails on SLES11 using mozilla-nss-3.14
 - 8016914: CoreDocumentImpl.setXmlVersion NPE
 - Merge
 - 8184732: Deadlock detection improvements for 'special' locks
 - 8229338: clean up test/jdk/java/util/RandomAccess/Basic.java
 - 8231583: Shenandoah: Fix register clash in SBSA::resolve_forwarding_pointer() borrowing
 - 8231403: [ppc]: Align ReservedCodeCacheSize default value with other platforms
 - 8231499: Shenandoah: compiler/arraycopy/TestDefaultMethodArrayCloneDeoptC2 fails
 - 8231616: Simplify compilation policy hierarchy
 - 8231134: Improved credential support
 - 8229951: Better Ticket Granting Services
 - 8231144: Wrap contents of plain HTML files into contentContainer
 - Merge
 - Merge
 - 8231450: Copyright header line omitted from 8231187 changeset
 - 8231413: Several test/hotspot/jtreg/runtime tests updates to run with --illegal-access=deny
 - Merge
 - 8231243: [TESTBUG] CustomFont.java cannot find font file
 - 8229872: (fs) Increase buffer size used with getmntent
 - 8231553: Deprecate unused G1RSetScanBlockSize command line option
 - 8230062: assert(i == p->size()-1) failed: must be last element of the pack
 - 8231457: Asserts on AIX because os::elapsed_counter() is not monotonic
 - 8231287: JMap should do a better job of reporting exception it catches
 - 8230415: Avoid redundant permission checking in FilePermissionCollection and SocketPermissionCollection
 - 8231431: JAOTC issues with JAR path containing spaces
 - 8231036: vmTestbase monitoring tests fail after JSR 166 refresh
 - 8231032: ThreadMXBean locking tests fail after JSR 166 refresh
 - 8230942: Support compressed cores in SA tests
 - 8231557: Suppress warnings on non-serializable instance fields in jdk.scripting.nashorn module
 - 8231037: java/net/InetAddress/ptr/Lookup.java fails intermittently due to reverse lookup failed
 - 8231321: compiler/codecache/stress/UnexpectedDeoptimizationAllTest.java failed assertion
 - 8231567: minimal build failed after JDK-8226690
 - 8231472: Clean up Monitor::_safepoint_check usage to Mutex::_safepoint_check
 - 8196969: JTreg Failure: serviceability/sa/ClhsdbJstack.java causes NPE
 - 8231956: Remove seq_add_card/reference from PerRegionTable class
 - 8232070: ZGC: Remove unused ZVerifyLoadBarriers
 - 8230957: [TESTBUG] containers/docker/TestJcmdWithSideCar.java sporadic failures
 - 8065704: Set LC_ALL=C for all relevant commands in the build system
 - 8232052: use string literal for format string when handling PauseAtStartupFile
 - 8232060: add some initializations using sigemptyset in os_aix.cpp
 - 8230782: Robot.createScreenCapture() fails if ?awt.robot.gtk? is set to false
 - 8229483: Sinking load out of loop may trigger: assert(found_sfpt) failed: no node in loop that's not input to safepoint
 - 8231097: [TESTBUG] runtime/cds/appcds/DirClasspathTest.java can fail with a mapping error
 - 8231334: Suppress warnings on non-serializable instance fields in client libs serializable classes
 - 8228580: DnsClient TCP socket timeout
 - 8231367: [TESTBUG] ParallelLoadTest.java fails with "test.dynamic.dump not supported"
 - 8229201: Update Graal
 - 8231376: Unproblem list compiler/unsafe/Unsafe{Off,On}HeapBooleanTest.java tests
 - 8230531: API Doc for CharsetEncoder.maxBytesPerChar() should be clearer about BOMs
 - 8231351: Add notes for PKCS11 tests in the test doc
 - 8231187: SelectorProvider.inheritedChannel() returns TCP socket channel for Unix domain socket
 - 8231270: ZGC: Remove ZAddressSpace* and ZAddressReserved*
 - 8231266: ZGC: Minor cleanups in ZCollectedHeap and ZHeap
 - 8231251: ZGC: Fix ZHeap includes
 - 8213150: Add verification for locking by VMThread
 - 8217825: Verify @AfterTest is used correctly in WebSocket tests
 - 8231186: Replace html tag <code>foo</code> with javadoc tag {@code foo} in java.base
 - 8224820: ZGC: Support discontiguous heap reservations
 - 8231122: @index tag with newline causes tag search to fail
 - Merge
 - 8231275: Remove null check in the beginning of SystemDictionary::load_shared_class()
 - 8231125: Improve testing of parallel loading of shared classes by the boot class loader
 - 8231323: ProblemList jdk/jfr/jcmd/TestJcmdConfigure.java
 - 8180837: SunPKCS11-NSS tests failing with CKR_ATTRIBUTE_READ_ONLY and CKR_MECHANISM_PARAM_INVALID
 - 8231083: Clarify SAX documentation
 - 8176837: SunPKCS11 provider needs to check more details on PKCS11 Mechanism
 - 8229853: Problemlist compiler/codecache/jmx/PoolsIndependenceTest.java
 - 8199424: consider removing ObjectInputStream and ObjectOutputStream native methods
 - 8225628: Remove unused Thread::muxAcquireW function
 - 8230648: Replace @exception tag with @throws in java.base
 - 8231242: G1CollectedHeap::print_regions_on() does not print description for "OA" and "CA" regions
 - 8165828: [TEST_BUG] The reg case:javax/swing/plaf/metal/MetalIcons/MetalHiDPIIconsTest.java failed as No Metal Look and Feel
 - 8225261: Better method resolutions
 - 8229728: Implement negotiation parameters
 - 8225372: accessibility errors in tables in java.desktop files
 - 8229896: Delete an unused code in the BufferedContext
 - 8225101: Crash at sun.awt.X11.XlibWrapper.XkbGetUpdatedMap when change keybord map
 - 8225805: Java Access Bridge does not close the logger
 - 8230728: Thin stroked shapes are not rendered if affine transform has flip bit
 - 8230765: Implement nmethod barrier for x86_32 platforms
 - 8233500: Shenandoah: Shenandoah load barrier should save registers before calling keep alive barrier on x86
 - 8234539: ArchiveRelocationTest.java failed: Archive mapping should always succeed
 - 8234535: Cross compilation fails due to missing CFLAGS for the BUILD_CC
 - 8234610: MaxVectorSize set wrongly when UseAVX=3 is specified after JDK-8221092
 - Merge
 - 8234394: C2: Dynamic register class support in ADLC
 - 8234387: C2: Better support of operands with multiple match rules in AD files
 - 8234403: C2: Enable CallSite.target updates in constructors
 - 8234401: ConstantCallSite may stuck in non-frozen state
 - 8229515: [macos] access to window property of NSView on wrong thread
 - 8230480: check malloc/calloc results in java.desktop
 - 8194944: Regression automated test 'open/test/jdk/javax/swing/JInternalFrame/8145896/TestJInternalFrameMaximize.java' fails
 - Merge
 - Merge
 - 8230074: Improve specification for {Math, StrictMath}.negateExact
 - Added tag jdk-14+12 for changeset 8570f22b9b6a
 - 8229800: WindowsServerCore 1809 does not provide d2d1.dll library required by awt.dll
 - 8230061: # assert(mode == ControlAroundStripMined && use == sfpt) failed: missed a node
 - 8231098: (tz) Upgrade time-zone data to tzdata2019c
 - 8231395: Backout JDK-8231249
 - 8230395: Code checks for NULL value returned from NEW_C_HEAP_ARRAY which can not happen
 - 8231222: fix pkcs11 P11_DEBUG guarded native traces
 - 8231171: remove remaining sun.java.launcher.pid references
 - 8229778: TestJstatdDefaults.java failed due to "fatal error: LEAF method calling lock?"
 - 8231278: Rename FileMapHeader::_read_only_tables_start to _serialized_data_start
 - 8231257: Avoid calling FileMapInfo::write_region twice
 - 8231254: (fs) Add test for macOS Catalina changes to protect system software
 - 8210794: Incorrect escaping of  in native test libraries
 - 8231375: AArch64 build failure after JDK-8230505
 - 8230505: Replace JVM type comparisons to T_OBJECT and T_ARRAY with call to is_reference_type
 - 8231250: Shenandoah: Traversal GC should keep alive weak load from heap
 - 8206125: [windows] cannot pass relative path to --with-boot-jdk
 - 8150741: make <module> not equivalent to make <module-dependencies> <module>
 - 8231249: Shenandoah: GC retries are too aggressive for tests that expect OOME
 - 8231058: VerifyOops crashes with assert(_offset >= 0) failed: offset for non comment?
 - 8231293: Shenandoah: Traversal should not revive dead weak roots
 - 8230857: Avoid reflection in sun.tools.common.ProcessHelper
 - 8231189: Rename worker_i parameters to worker_id
 - 8159984: Remove call to ClassLoaderDataGraph::clear_claimed_marks during the initial mark pause
 - 8231117: Remove G1EvacuationRootClosures::raw_strong_oops()
 - 8230228: [TESTBUG] Several runtime/ErrorHandling tests may fail on some platforms
 - 8230115: Problemlist JFR TestNetworkUtilization test
 - 8228554: Accessibility errors in jdwp-protocol.html
 - 8230094: CCE in createXMLEventWriter(Result) over an arbitrary XMLStreamWriter
 - 8215166: Remove unused G1PretouchAuxiliaryMemory option
 - 8230126: delay_to_keep_mmu can delay shutdown
 - 8230317: serviceability/sa/ClhsdbPrintStatics.java fails after 8230184
 - 8230184: rename, whitespace, indent and comments changes in preparation for lock free Monitor lists
 - 8230294: runtime/cds/appcds/ClassPathAttr.java failed with jar operation failed
 - 8146238: [macosx] Java2D Queue Flusher crash on OSX after switching between user accounts
 - 8227758: More valid PKIX processing
 - 8230091: Add verification of clean_catch_blocks
 - 8229278: Improve hs_err location printing to assume less about GC internals
 - 8230096: ZGC: Remove unused ZObjectAllocator::_nworkers
 - 8230092: ZGC: Consolidate ZBackingFile, ZBackingPath and ZPhysicalMemoryBacking on Linux
 - 8230090: ZGC: Introduce ZSyscall
 - 8227370: Remove SharedPathsMiscInfo
 - 8230168: Use ClasspathStream for FileMapInfo::create_path_array
 - 8230010: Remove jdk8037819/BasicTest1.java
 - 8226831: Use Objects.equals() when appropriate
 - 8228507: Archive FDBigInteger
 - 8229844: Remove attempt_rebias parameter from revoke_and_rebias()
 - 8230118: 32-bit build failures after JDK-8227054
 - 8219708: Stop flushing OSR nmethods earlier in the sweeper
 - 8230192: Rename G1RedirtyCardsBufferList to G1BufferNodeList
 - 8230215: MacOS debug build is broken after JDK-8230003
 - 8230220: java/net/HttpURLConnection/HttpURLProxySelectionTest.java fails intermittently
 - 8230214: AArch64 build failures after JDK-8229836 (Remove include of globals.hpp from allocation.hpp)
 - Merge
 - 8230116: Test workaround to Klass::_class_loader_data sometimes NULL problem
 - 8230104: JNU_IsInstanceOfByName needs const parameter
 - 8229485: Add decrementExact(), incrementExact(), and negateExact() to java.lang.StrictMath
 - 8230058: Replace exception from sun.rmi.runtime.Log#getSource() with StackWalker
 - 8230011: Consolidate duplicated classpath parsing code in classLoader.cpp
 - 8229388: ErrorHandler and ContentHandler contain ambiguous/unfinished specification
 - 8229337: java.lang.Math class doc should be adjusted regarding -Exact methods
 - 8225505: ctrl-F1 does not show the tooltip of a menu item (JMenuItems)
 - 8227021: VM fails if any sun.boot.library.path paths are longer than JVM_MAXPATHLEN
 - 8229970: ZGC: C2: fixup_uses_in_catch may fail when expanding many uses
 - 8228839: Non-CFG nodes have control edges to calls, instead of the call's control projection
 - 8229127: Make some methods in the allocation path non-virtual
 - 8229451: ZGC: Make some roots invisible to the heap iterator
 - 8227226: ZGC: Segmented array clearing
 - 8225436: Stapled OCSPResponses should be added to PKIXRevocationChecker irrespective of revocationEnabled flag
 - 8230046: Build failure after JDK-8230003
 - 8078219: Verify lack of @test tag in files in java/net test directory
 - Merge
 - 8229957: Harden pid verification in attach mechanism
 - 8226779: [TESTBUG] Test JFR API from Java agent
 - 8229887: (zipfs) zip file corruption when replacing an existing STORED entry
 - Merge
 - 8229925: [s390, PPC64] Exception check missing in interpreter
 - 8230003: Make Monitor inherit from Mutex
 - 8199849: Add support for UTF-8 encoded credentials in HTTP Basic Authentication
 - 8229998: Build failure after JDK-8227054
 - 8230024: Shenandoah: remove unnecessary ShenandoahTimingConverter
 - 8229967: Enable thread local handshakes on zero
 - 8224624: Inefficiencies in CodeStrings::add_comment cause timeouts
 - 8230020: [BACKOUT] compiler/types/correctness/* tests fail with "assert(recv == __null || recv->is_klass()) failed: wrong type"
 - 8229912: [TESTBUG] java/net/Socks/SocksIPv6Test fails without IPv6
 - 8224909: Unlink Set of LinkedHashSets
 - 8229848: [Graal] missing Graal intrinsics for Electronic Code Book (ECB) encryption
 - Added tag jdk-14+11 for changeset bf4c808a4488
 - 8189633: Missing -Xcheck:jni checking for DeleteWeakGlobalRef
 - 8227054: ServiceThread needs to know about all OopStorage objects
 - 8207814: (proxy) upgrade the proxy class generator
 - 8211360: Change #if DEF to #if defined(DEF)
 - 8228547: accessibility errors in jvmti.html
 - 8229977: Shenandoah: save/restore FPU state aroud LRB runtime call
 - 8229930: internal_name() in annotations.hpp returns "{constant pool}"
 - 8229254: solaris_x64 build fails after JDK-8191278
 - 8220700: jlink generated launcher script needs quoting to avoid parameter expansion
 - 8139820: URLClassPath.FileLoader constructor redundantly checks protocol
 - 8229854: Move runtime/ErrorHandling/TestHeapDumpOnOutOfMemoryErrorInMetaspace.java out of tier1_runtime
 - 8229921: Shenandoah: Make Traversal mode non-experimental
 - 8229899: Make java.io.File.isInvalid() less racy
 - 8229916: Delete redundant test java/net/Socket/reset/Test.java
 - 8152467: remove uses of anachronistic array declarations for method return type
 - 8226513: JEditorPane is shown with incorrect size
 - 8222108: Reduce minRefreshTime for updating remote printer list on Windows
 - 8229706: java/net/MulticastSocket/NoLoopbackPackets.java fails on some AIX machines
 - 8230079: Update test document by changing "TIMEOUT" to "TIMEOUT_FACTOR"
 - 8230000: some httpclients testng tests run zero test
 - 8177648: getResponseCode() throws IllegalArgumentException caused by protocol error while following redirect
 - 8222363: Update ServerSocket.isBound spec to reflect implementation after close
 - 8224878: Use JVMFlag parameters instead of name strings
 - 8229836: Remove include of globals.hpp from allocation.hpp
 - 8229351: AArch64: the const STUB_THRESHOLD in macroAssembler_aarch64.cpp needs to be tuned
 - 8236184: (dc) IP_MULTICAST_* and IP_TOS socket options not effective
 - 8236183: cleanup Java_jdk_internal_reflect_Reflection_getCallerClass naming
 - Added tag jdk-15+2 for changeset f33197adda9a
 - 8234794: AArch64: runtime/memory/ReadFromNoaccessArea.java crashes
 - 8236226: fix merge error in src/hotspot/share/gc/z/zRootsIterator.cpp
 - Merge
 - 8236030: Cleanup use of String.toCharArray
 - 8235947: Cleanup/simplify Utils.getBlockTags
 - 8235825: C2: Merge AD instructions for Replicate nodes
 - 8235824: C2: Merge AD instructions for AddReductionV and MulReductionV nodes
 - 8229888: (zipfs) Updating an existing zip file does not preserve original permissions
 - 5064980: URI compareTo inconsistent with equals for mixed-case escape sequences
 - 8235563: [TESTBUG] appcds/CommandLineFlagComboNegative.java does not handle archive mapping failure
 - 8236077: Clean up the use of modifiers and semicolons
 - 8235926: Update @jls @jvms taglets to allow inline usage
 - 8236134: files missing in putback to JDK-8233270
 - 8236130: ProblemList jdk/jfr/jmx/security/TestEnoughPermission.java
 - 8234971: Incorrect example in j.l.reflect.RecordComponent::toString
 - 8233270: Add support to jtreg helpers to unpack packages
 - 8236106: [TESTBUG] Shenandoah: Make TestThreadFailure more resilient
 - 8235454: [TESTBUG] Basic test for JFR event streaming for jdk_jfr_sanity
 - 8235960: Zero should not trigger the deprecation warning for ports
 - Merge
 - 8235925: java/net/Socket/HttpProxy.java fails on IPv4 only hosts and other small cleanups
 - 8235915: jpackage associations fail when there are spaces in file name or path
 - 8235997: JMH test runner should quote VM_OPTIONS and JAVA_OPTIONS sent to -jvmArgs
 - 8235667: IOUtils.copyFile() problems
 - 8236070: Backout fix for JDK-8234465
 - 8235905: ZGC: Rework how ZRootsIterator visits threads
 - 8235996: Move obsolete flag G1RSetScanBlockSize in flags list
 - 8235671: enhance print_rlimit_info in os_posix
 - 8236028: [TESTBUG] Remove dependency of sun.tools.jar from appcds/JarBuilder
 - 8234465: Encoded elliptic curve private keys should include the public point
 - 8236045: [TESTBUG] MismatchedWhiteBox test fails with missing WhiteBox$WhiteBoxPermission.class
 - 8235907: Fix tests referencing UseParallelOldGC
 - 8235778: No compilation error reported when a record is declared in a local class
 - 8235970: [TESTBUG] Remove dependency of sun.tools.jar from RedefineClassHelper
 - 8199290: [TESTBUG] sun.hotspot.WhiteBox$WhiteBoxPermission is not copied
 - Merge
 - 8235956: Remove javaClasses offset tests
 - 8234968: check calloc rv in libinstrument InvocationAdapter
 - 8235965: Tests using ThreadLocalHandshakes need to stop using it as it no longer exists
 - 8231559: Remove expired flags in JDK 15
 - 8235930: java.util.regex.PrintPattern does not print a link to the next node
 - 8234697: Generate sun.security.util.math.intpoly classes during build
 - 8235922: [TESTBUG]TestRecordAttrGenericSig.java and TestRecordAttr.java are failing
 - 8235306: Support doc-comment tags that can be inline or block tags
 - 8231612: 100% cpu on arm32 in Service Thread
 - 8235238: Parsing a time string ignores any custom TimeZoneNameProvider
 - 8232733: Remove need to grab Threads_lock while processing handshakes
 - 8234728: Some security tests should support TLSv1.3
 - 8005819: Support cross-realm MSSFU
 - Added tag jdk-15+1 for changeset 63e17cf29bed
 - 8235447: Remove (obsolete) @author info from javadoc tests
 - 8235842: Shenandoah: Implement native LRB for narrow oop
 - 8230771: Remove terminally deprecated constructors in java.base
 - 8235514: Update record serialization tests to not use hard coded source versions
 - 8225361: Start of release updates for JDK 15
 - 8234974: Shenandoah: Do concurrent roots even when no evacuation is necessary
 - Added tag jdk-15+0 for changeset 2c724dba4c3c
 - 8228548: Normalize normalization for all
 - 8228711: Path rendered incorrectly when it goes outside the clipping region
 - 8226765: Commentary on Javadoc comments
 - 8221312: test/jdk/sanity/client/SwingSet/src/ColorChooserDemoTest.java failed
 - Merge
 - Merge
 - 8071275: remove AbstractAssembler::update_delayed_values dead code
 - Merge
 - Added tag jdk-14+7 for changeset 28ab01c06755
 - 8173978: Lookup.in should allow teleporting from a lookup class in a named module without dropping all access
 - 8228485: JVM crashes when bootstrap method for condy triggers loading of class whose static initializer throws exception
 - 8227927: Move ParallelCleaningTask back to G1
 - 8227721: test/jdk/java/net/NetworkInterface/NetworkInterfaceRetrievalTests.java should open the java.net package
 - 8228388: Add information about dirty/skipped card for Merge HCC in G1 log
 - 8227719: G1 Pending cards estimation too conservative in cost prediction
 - 8226913: Scale cards per chunk used during heap root scanning with region size
 - Merge
 - Merge
 - 8228479: Correct the format of ColorChooserDemoTest
 - 8219774: Reexamine the initialization of LangReflectAccess shared secret at AccessibleObject::<clinit>
 - 8227122: [TESTBUG] Create Docker sidecar test cases
 - 8228484: Remove NoAllocVerifier because nothing uses it
 - Merge
 - 8162929: Enqueuing dirty cards into a single DCQS during GC does not scale
 - 8227179: Test for new gc+metaspace=info output format
 - 8228394: Cleanup unused java.net SharedSecrets classes
 - 8227260: JNI upcalls should bypass class initialization barrier in c2i adapter
 - 8226352: Improve Kerberos interop capabilities
 - 8228396: Re-enable Stateless Resumption On by default for merge to mainline
 - Merge
 - 8228492: Remove pako.md
 - 8228399: Remove mistaken open.iml
 - 8228450: unicode.md and icu.md text should be pre-formatted
 - 8228426: xlc: switch to clang-style warning disabling
 - 8228468: awt_Robot.c : format string contains 0 within the string body
 - 8225782: Remove expired flags in JDK 14
 - 6573239: Typo in jfc text file
 - 8227384: C2 compilation fails with "graph should be schedulable" when running with -XX:-EliminateLocks
 - 8231471: Obsolete -XX:CompilationPolicyChoice
 - 8231405: [Shenandoah] guarantee(d != NULL) failed: Null dominator info
 - 8231504: Update networking tests to avoid implicit dependency on the system proxies
 - 8228625: [TESTBUG] sun/tools/jhsdb/JShellHeapDumpTest.java fails with RuntimeException 'JShellToolProvider' missing from stdout/stderr
 - 8231546: Suppress warnings on non-serializable instance fields in java.prefs module
 - 8231314: java.time serialization warning cleanup
 - 8231467: Missing make prerequisite declaration corrupts make dependency files on Windows
 - 8226690: SIGSEGV in MetadataOnStackClosure::do_metadata
 - 8231448: s390 and ppc - replace JVM type comparisons to T_OBJECT and T_ARRAY with call to is_reference_type
 - 8231294: ZGC: vmTestbase/nsk/jvmti/ResourceExhausted/resexhausted002 fails
 - 8229499: Node budget assert in fuzzed test
 - 8219724: ZGC: Make inline cache cleaning more robust
 - 8231445: check ZALLOC return values in awt coding
 - 8231223: C2's conditional move optimization fails with assert(bol->Opcode() == Op_Bool) failed
 - 8231414: Mark various instance fields of javac internal types as transient
 - Added tag jdk-14+16 for changeset d29f0181ba42
 - 8231209: [REDO] ThreadMXBean::getThreadAllocatedBytes() can be quicker for self thread
 - 8221623: Add StackWalker micro benchmarks to jdk repo
 - 8231443: Add java.io.Serial to list of platform annotations for annotation processing
 - 8231174: (fs) FileTime should have 100ns resolution (win)
 - 8185005: Improve performance of ThreadMXBean.getThreadInfo(long ids[], int maxDepth)
 - 8231410: Shenandoah: clone barrier should use base pointer
 - 8231442: Suppress warnings on non-serializable instance fields in java.sql.* modules
 - 8231387: java.security.Provider.getService returns random result due to race condition with mutating methods in the same class
 - 8230110: TestLinkageErrorInGenerateOopMap times out
 - 8231317: jdk/jfr/jcmd/TestJcmdConfigure.java fails with "java.lang.RuntimeException: assertTrue: expected true, was false"
 - 8231447: Shenandoah: Compilation-time regression after JDK-8231086
 - 8231055: C2: arraycopy with same non escaping src and dest but different positions causes wrong execution
 - 8228659: Record which Java methods are called by native codes in JGSS and JAAS
 - 8154520: java.time: appendLocalizedOffset() should return the localized "GMT" string
 - 8222791: Order of evaluation of -link params in Javadoc tool reversed -> regression with split packages
 - 8227866: Shenandoah: Split weak root processing and class unloading in parallel cleaning task
 - 8227693: HTML error in jdwp-protocol.html
 - 8227868: jinfo and jstack can fail converting UTF8 output to strings
 - 8228434: jdk/net/Sockets/Test.java fails after JDK-8227642
 - 8227923: End position of EndElementTree is -1
 - 8225648: [TESTBUG] java/lang/annotation/loaderLeak/Main.java fails with -Xcomp
 - 8227869: fix wrong format specifiers in os_aix.cpp
 - 8227737: avoid implicit-function-declaration on AIX
 - 8227247: tools/sjavac/IdleShutdown.java fails with AssertionError: Error too big on windows
 - 8221303: sun/management/jmxremote/bootstrap/JMXInterfaceBindingTest.java fails due to java.rmi.server.ExportException: Port already in use
 - 8226910: make it possible to use jtreg's -match via run-test framework
 - 8228340: JVMCI deleteGlobalHandle doesn't delete the handle
 - 8227441: Enhance logging when reading the fontconfig info file
 - 8227397: Add --with-extra-asflags configure option
 - 8228420: compile error in shenandoahSupport.cpp with clang 9
 - 8227642: [TESTBUG] Make docker tests podman compatible
 - 8227692: Remove develop feature PrintMallocStatistics
 - 8228368: avoid incompatible pointer to integer conversion initializing gint in gtk2_interface
 - 8227633: avoid comparing this pointers to NULL
 - 8157830: Errors in XSLT stylesheet are not dispatched correctly to ErrorListener
 - 8228392: Backout incorrect change done by JDK-8067801
 - 8227653: Add VM Global OopStorage
 - 8227755: Need more than 2 distinct CodeCache unloading cycles
 - 8227652: SetupOperatorNewDeleteCheck should discuss deleting destructors
 - 8228338: tools/pack200/TimeStamp.java fails with NullPointerException
 - 8227815: Minimal VM: set_state is not a member of AttachListener
 - 8228364: Shenandoah: Remove unused code from ShenandoahBarrierSetC1
 - 8227766: CheckUnhandledOops is broken in MemAllocator
 - 8227435: Perf::attach() should not throw a java.lang.Exception
 - 8227834: build.log output from failing commands : include the hs_error file path in case of crashes in build
 - 8227247: tools/sjavac/IdleShutdown.java fails with AssertionError: Error too big on windows
 - 8073213: javadoc of PushbackInputStream methods should specify NullPointerExceptions
 - 8228204: Fix for JDK-8067801 breaks java/io/NegativeInitSize.java
 - 8067801: Enforce null check for underlying I/O streams
 - 8131664: Javadoc for PrintStream is now incorrect
 - Added tag jdk-14+6 for changeset 443f7359b34d
 - 8206179: com/sun/management/OperatingSystemMXBean/GetCommittedVirtualMemorySize.java fails with Committed virtual memory size illegal value
 - 8227090: G1 does not account the OptMergeRS in cost per card calculation
 - 8227089: Add timing information for merging humongous remembered sets
 - 8227084: Add timing information for merge heap root preparation
 - 8227671: G1: assert_used_and_recalculate_used_equal performs work in product builds
 - 8226232: Move merge heap roots code out from G1RemSetScanState
 - 8227738: jvmti/DataDumpRequest/datadumpreq001 failed due to "exit code is 134"
 - 8227635: Shenandoah: SHBSA::load_at() needs to deal IN_NATIVE load
 - Merge
 - 8227587: Add internal privileged System.loadLibrary
 - 8227677: Shenandoah: C2: Make in-native LRB special case of normal LRB
 - Merge
 - 8227392: Colors with alpha are painted incorrectly on Linux, after JDK-8214579
 - 8227631: Adjust AIX version check
 - 8227615: [TESTBUG] JTReg "jdk/sun/security/util/FilePermCompat/CompatImpact.java" fails with graal
 - 8227640: javac crashes on text blocks with invalid escapes
 - 8227512: [TESTBUG] Fix JTReg javac test failures with Graal
 - 8176447: javax.xml.validation.Validator validates incorrectly on uniqueness constraint
 - 8227720: Improve ExtendedSocketOptions initialization
 - 8227632: Incorrect PrintCompilation message: made not compilable on levels 0 1 2 3 4
 - 8227440: Implement fix to JDK-8224642 on all platforms
 - 8226653: [accessibility] Can edit text cell correctly, but Accessibility Tool reads nothing about editor
 - 8227496: Update NUM_CDS_REGIONS and CURRENT_CDS_ARCHIVE_VERSION in cds.h
 - 8227574: [TESTBUG] JTReg tests fail with Graal due to access denied
 - 8227368: EnumSet.class serialization broken in JDK 9+
 - 8227636: Fix output dir for jlink_jre target in Images.gmk
 - 8227630: adjust format specifiers in loadlib_aix.cpp
 - 8225690: Multiple AttachListener threads can be created
 - 8225483: Shenandoah: Enhance native access barrier
 - 8227289: Enable assertions for some shell to java conversion tests after JDK-8218960
 - 8227676: Shenandoah: More consistent naming of LRB entry points
 - 8227637: Adjust Shenandoah C2 verifier to recognize IN_NATIVE barriers
 - 8227438: [TESTLIB] Determine if file exists by Files.exists in function FileUtils.deleteFileIfExistsWithRetry
 - 8227594: sadebugd/DebugdConnectTest.java fails due to "java.rmi.NotBoundException: SARemoteDebugger"
 - 8227644: make more build-time variables available to Markdown files
 - 8227068: [Graal] MappedByteBuffer bulk access memory failures are not handled gracefully
 - 8227613: "draft" header should be in a <header> instead of <div>
 - 8227582: runtime/TLS/testtls.sh fails on x86_32
 - Merge
 - 8227578: Wrong JRE targets in Images.gmk after JDK-8219971
 - 8227422: sun/net/www/protocol/file/DirPermissionDenied.java failed on Windows 2016 because DirPermissionDenied directory has no read permission
 - 8225423: GTK L&F: JSplitPane: There is no divider shown
 - 8225745: NoSuchAlgorithmException exception for SHA256withECDSA with RSASSA-PSS support
 - 8227602: Update nroff version of man pages
 - 8178843: A bug in an inner loop in MethodGenerator's getLocals method
 - 8227391: Update double-conversion to version 3.1.5
 - 8223451: Make optimistic types disabled by default
 - 8227527: LogDecorations should lazily resolve host name
 - 8226798: JVM crash in klassItable::initialize_itable_for_interface(int, InstanceKlass*, bool, Thread*)
 - Merge
 - 8227549: Fix style of links in specs for consistency
 - 8181386: CipherSpi ByteBuffer to byte array conversion fails for certain data overlap conditions
 - 8226536: Catch OOM from deopt that fails rematerializing objects
 - Added tag jdk-13+29 for changeset 3081f39a3d30
 - 8224560: (tz) Upgrade time-zone data to tzdata2019a
 - 8227009: JDK 13 L10n resource files update - msgdrop 10
 - 8220041: NullPointerException at jdk.compiler/com.sun.tools.javac.jvm.Code.emitop0
 - 8227059: sun/security/tools/keytool/DefaultSignatureAlgorithm.java timed out
 - 8227381: GSS login fails with PREAUTH_FAILED
 - 8225687: Newly added sspi.cpp in JDK-6722928 still contains some small errors
 - 8227222: vmTestbase/jit/FloatingPoint/gen_math/Loops04/Loops04.java failed XMM register should be 0-15
 - 8227034: Graal crash with gcbasher
 - 8227237: [Graal] org.graalvm.compiler.api.directives.test.ProbabilityDirectiveTest fails with -Xcomp
 - 8224531: SEGV while collecting Klass statistics
 - 8227277: HeapInspection::find_instances_at_safepoint walks dead objects
 - 8227127: Era designator not displayed correctly using the COMPAT provider
 - Merge
 - 8227117: normal interpreter table is not restored after single stepping with TLH
 - 8221577: [Graal] Implement basic type consistency checks for Low level MH intrinsics
 - 8226302: Test failures on IBM platforms (power and s/390) after JDK-8223837
 - 8221514: [Graal] java/lang/String/CompactString/ tests fail with "GraalError: failed guarantee: no FrameState at DeoptimizingNode" in Graal -Xcomp mode
 - 8224254: compiler/graalunit/HotspotJdk9Test.java is timing out intermittently
 - 8225064: [Graal] Application SEGV in G1ParScanThreadState::copy_to_survivor_space(G1HeapRegionAttr, oopDesc*, markOopDesc*)+0x48
 - 8226654: Some swing gtk regression tests fail with "java.lang.InternalError: Unable to load native GTK librarie
 - 8227305: Krb5Util::getTicketFromSubjectAndTgs is useless
 - 8226627: assert(t->singleton()) failed: must be a constant
 - 8226695: Shenandoah: Wire C1 and C2 IN_NATIVE barrier
 - 8227275: Within native OOM error handling, assertions may hang the process
 - 8227031: Print NMT statistics on fatal errors
 - 8227416: Add a "Table Of Contents" to HTML version of man pages
 - 8209790: SA tools not providing option to connect to debug server
 - 8227539: Replace wildcard address with loopback or local host in tests - part 20
 - 7148925: StAXSource causes exceptions to be thrown with certain wellformed XML instances
 - 8227252: [aix] Disable jdk/java/lang/reflect/exeCallerAccessTest
 - 8226406: JVM fails to detect mismatched or corrupt CDS archive
 - 8042383: [TEST_BUG] Test javax/swing/plaf/basic/BasicMenuUI/4983388/bug4983388.java fails with shortcuts on menus do not work
 - 8226525: HotSpot compile-time error for x86-32
 - 8227011: Starting a JFR recording in response to JVMTI VMInit and / or Java agent premain corrupts memory
 - 8225715: jhsdb jmap fails to write binary heap dump of a jshell process
 - Added tag jdk-14+5 for changeset 0f1e29c77e50
 - 8226756: Replace wildcard address with loopback or local host in tests - part 18
 - Merge
 - 8227338: templateInterpreter.cpp: copy_table() needs to be safer
 - 8225479: com.sun.net.httpserver.HttpContext that does not end with '/' has surprising matches
 - 8222446: assert(C->env()->system_dictionary_modification_counter_changed()) failed: Must invalidate if TypeFuncs differ
 - 8224560: (tz) Upgrade time-zone data to tzdata2019a
 - Merge
 - 8227222: vmTestbase/jit/FloatingPoint/gen_math/Loops04/Loops04.java failed XMM register should be 0-15
 - 8191890: Biased locking still uses the inferior stop the world safepoint for revocation
 - 8225035: Thread stack size issue caused by large TLS size
 - 8227389: Remove unsupported xlc16 compile options on aix
 - 8223443: Calling Trees.getScope early changes names of local/anonymous classes
 - Merge
 - Merge
 - 8225626: JMH Test Support for JDK-8222074
 - 8217170: gc/arguments/TestUseCompressedOopsErgo.java timed out
 - Merge
 - 8224741: Optimize the scan area during the Scan Heap Roots phase
 - 8227327: Shenandoah: Faster and more parallel tests
 - Merge
 - 8227124: "could not open pipe" error does not report error details
 - 8225239: Refactor NetworkInterface lookups
 - 8226409: Enable argument profiling for sun.misc.Unsafe.put*/get*
 - 8227039: Shenandoah: Aggressive heuristics for Traversal mode
 - 8222079: Don't use memset to initialize fields decode_env constructor in disassembler.cpp
 - 8226793: Replace OopStorage dup_name with os::strdup
 - 8226823: Adjust BarrierSetC2 for C2 runtime calls
 - 8226822: GC interface for C1 runtime calls
 - 8227010: Error recovery after local variable redeclaration can be improved
 - 8224657: [TESTBUG] java/util/Locale/SoftKeys.java should be ignored but run
 - 8226757: Shenandoah: Make traversal and passive modes explicit
 - 8225706: JFR RootResolver resets CLD claims with no restore
 - 8227086: Use AS_NO_KEEPALIVE loads in HeapDumper
 - 8229839: Break circular dependency between oop.inline.hpp and markWord.inline.hpp
 - 8229838: Rename markOop files to markWord
 - 8229421: The logic of java/net/ipv6tests/TcpTest.java is flawed
 - 8224974: Implement JEP 352
 - 8229158: make UseSwitchProfiling non-experimental or false by-default
 - 8227442: Make young_index_in_cset zero-based
 - 8228888: C2 compilation fails with assert "m has strange control"
 - 8202385: Annotation to mark serial-related fields and methods
 - 8228757: Fail fast if the handshake type is unknown
 - 8229865: Use explicit #include debug.hpp for STATIC_ASSERT in gc/shenandoah/shenandoahUtils.cpp
 - 8229835: Shenandoah should recommend -Xlog:safepoint+stats
 - 8225425: java.lang.UnsatisfiedLinkError: net.dll: Can't find dependent libraries
 - 8229352: Use of an uninitialized register in 32-bit ARM template interpreter
 - 8226204: SA: Refactoring for option processing in SALauncher
 - 8191169: java/net/Authenticator/B4769350.java failed intermittently
 - 8229773: Resolve permissions for code source URLs lazily
 - 8224997: ChaCha20-Poly1305 TLS cipher suite decryption throws ShortBufferException
 - 8229808: javaVFrame::print_lock_info_on fails to disable extra printing
 - 8225625: AES Electronic Codebook (ECB) encryption and decryption optimization using AVX512 + VAES instructions
 - 8229044: G1RedirtyCardsQueueSet should be local to a collection
 - 8221307: String.substring() OOB exception on start index reports improper information
 - 8229420: [Redo] jstat reports incorrect values for OU for CMS GC
 - 8229345: Memory leak due to vtable stubs not being shared on SPARC
 - 8229481: sun/net/www/protocol/https/ChunkedOutputStream.java failed with a SSLException
 - 8229258: Rework markOop and markOopDesc into a simpler mark word value carrier
 - 8224666: Parallel GC: Use WorkGang (8: obsolete and remove flags)
 - 8224665: Parallel GC: Use WorkGang (7: remove task manager)
 - 8224664: Parallel GC: Use WorkGang (6: PSRefProcTaskProxy)
 - 8224663: Parallel GC: Use WorkGang (5: ScavengeRootsTask)
 - 8224662: Parallel GC: Use WorkGang (4: SharedRestorePreservedMarksTaskExecutor)
 - 8224661: Parallel GC: Use WorkGang (3: UpdateDensePrefixAndCompactionTask)
 - 8224660: Parallel GC: Use WorkGang (2: MarksFromRootsTask)
 - 8224659: Parallel GC: Use WorkGang (1: PCRefProcTask)
 - 8229775: Incorrect warning when jar was signed with -sectionsonly
 - 8226645: [TESTBUG] some AppCDS tests rely on illegal reflective access
 - 8229699: [Graal] jck tests fail on windows with AOTed Graal
 - 8193325: StackFrameInfo::getByteCodeIndex returns wrong value if bci > 32767
 - 8226848: jline/terminal/impl files missing classpath exception clause in license header
 - 8229486: Replace wildcard address with loopback or local host in tests - part 21
 - 8229767: Typo in java.security: Sasl.createClient and Sasl.createServer
 - 8225788: Dead code in thread and safepoint
 - 8229118: [TESTBUG] serviceability/sa/ClhsdbFindPC fails on AArch64
 - Added tag jdk-14+10 for changeset ececb6dae777
 - 8228858: Reimplement JVM_RawMonitors to use PlatformMutex
 - 8229707: [TESTBUG] Some Shenandoah tests assume Server VM by default
 - 8229709: x86_32 build and test failures after JDK-8228369 (Shenandoah: Refactor LRB C1 stubs)
 - 8184432: Remove references to jdbc at sun.com from javax.sql.rowset.spi.SyncProvider
 - 5103339: Strengthen NoSafepointVerifier
 - 8217606: LdapContext#reconnect always opens a new connection
 - 8228857: Refactor PlatformMonitor into PlatformMutex and PlatformMonitor
 - 8228835: Memory leak in PKCS11 provider when using AES GCM
 - 8228613: java.security.Provider#getServices order is no longer deterministic
 - 8209005: Lookup.unreflectSpecial fails for default methods when Lookup.findSpecial works
 - 8229212: clear up CHECK_OWNER confusion in objectMonitor.cpp
 - 8211990: DateTimeException thrown when calculating duration between certain dates
 - 8229474: Shenandoah: Cleanup CM::update_roots()
 - 8229348: java/net/DatagramSocket/UnreferencedDatagramSockets.java fails intermittently
 - 8228508: [TESTBUG] java/net/httpclient/SmokeTest.java fails on Windows7
 - 8229470: Shenandoah: Fix C1 getAndSetObject() failure
 - 8229419: Shenandoah: Cleanup LRB strength selector code
 - 8228502: javac crashed on a broken classfile with ConstantValue attribute on a field of type Object
 - 8228647: Broken enum produce inconvenient errors and AST
 - 8227922: DocTreeScanner does not dive into AttributeTree.getValue() and LiteralTree.getBody()
 - 8224957: C2 compilation fails with assert: Bad graph detected in build_loop_late
 - 8228772: C2 compilation fails due to unschedulable graph if DominatorSearchLimit is reached
 - 8229447: Problem list compiler/unsafe/UnsafeGetConstantField.java on Sparc until JDK-8229446 is fixed
 - 8226374: Restrict TLS signature schemes and named groups
 - 8228369: Shenandoah: Refactor LRB C1 stubs
 - 8229416: Shenandoah: Demote or remove ShenandoahOptimize*Final optimizations
 - 8229407: Avoid ConcurrentHashMap resizes during bootstrap
 - 8185898: setRequestProperty(key, null) results in HTTP header without colon in request
 - 8219082: jdk/jfr/event/runtime/TestShutdownEvent.java failed in validateStackTrace()
 - 8229406: ZGC: Fix incorrect statistics
 - 8229236: CriticalJNINatives: dll handling should be done in native thread state
 - 8225670: compiler/types/correctness/* tests fail with "assert(recv == __null || recv->is_klass()) failed: wrong type"
 - 8229386: Typo "lables" in doc comment
 - 8229267: [TESTBUG] Remove unnecessary @modules dependencies in CDS tests
 - 8227697: Improve text in Taglet API spec for expected results with standard doclet
 - 8227645: Some tests in serviceability/sa run with fixed -Xmx values and risk running out of memory
 - 8229283: StringLatin1 should consistently use CharacterDataLatin1.instance when applicable
 - 8229350: Shenandoah does not need barriers before CreateEx
 - 8226228: Make Threads_lock an always safepoint checked lock
 - 8229027: Improve how JNIHandleBlock::oops_do distinguishes oops from non-oops
 - Merge
 - Added tag jdk-13+33 for changeset 9c250a7600e1
 - 8225430: Replace wildcard address with loopback or local host in tests - part 14
 - 8228970: AssertionError in ResponseSubscribers$HttpResponseInputStream
 - 8229036: Remove the testing against NSK_TRUE from tests
 - 8227439: Turn off AOT by default
 - 8229180: Remove EA from JDK 13 version string
 - 8228778: JDK 13 L10n resource files update - msgdrop 20
 - 8228359: [TESTBUG] jdk.jfr.e.g.c.TestGCHeapConfigurationEventWith32BitOops.java does not expect MinHeapSize to be aligned to HeapAlignment
 - 8229219: C2 compilation fails with assert: Bad graph detected in build_loop_late
 - Added tag jdk-14+9 for changeset 18f189e69b29
 - Added tag jdk-13+33 for changeset 5c85b58e2a42
 - 8215181: Accounting currency format support
 - Merge
 - Merge
 - 8229214: Don't use GCM with PKCS5Padding in test/micro/org/openjdk/bench/javax/crypto/
 - 8226530: ZipFile reads wrong entry size from ZIP64 entries
 - 8228971: Locale API doc has redundant hyphens for some parameters
 - 8229213: Shenandoah: Allow VM global oop storage to be processed concurrently
 - 8229208: Remove Monitor::ClearMonitor
 - 8228469: (tz) Upgrade time-zone data to tzdata2019b
 - 8229206: Shenandoah: ShenandoahWeakRoot::oops_do() uses wrong timing phase
 - 8213031: (zipfs) Add support for POSIX file permissions
 - 8229016: C2 scalarization crashes with assert(node->Opcode() == Op_CastP2X) failed: ConvP2XNode required
 - 8229169: False failure of GenericTaskQueue::pop_local on architectures with weak memory model
 - 8228503: Rename "rs_lengths" to "rs_length" in ergo code
 - 8227225: ParallelGC: add subspace transitions for young gen for gc+heap=info log lines
 - 8229156: ProblemList gc/stress/gclocker/TestExcessGCLockerCollections.java
 - 8229129: ZGC: Fix incorrect format string for doubles
 - 8229128: ZGC: Remove unused ZThreadRootsIterator
 - 8229017: ZGC: Various cleanups of ZVerify
 - 8228657: ZGC: ZObjectAllocator::used() should take undone allocations into account
 - 8229135: ZGC: Adding missing ZStatTimerDisable before call to ZVerify::roots_strong()
 - 8210755: Define standard names for EC curves and TLS signature schemes
 - 8228753: Deprecate -XX:FieldsAllocationStyle product option
 - 8229134: [TESTBUG] 32-bit build fails gc/arguments/TestSurvivorAlignmentInBytesOption.java after JDK-8228855
 - 8229176: Shenandoah should acquire CodeCache_lock without safepoint check
 - 8228902: add os::dll_load to the unified logging os category
 - Merge
 - 8225776: Optimize branch frequency of G1's write post-barrier in C2
 - 8229000: Fix lock and reenable assert in Monitor::check_safepoint_state
 - 8229018: Switching to an infinite socket timeout on Windows leads to high CPU load
 - 8158880: test/java/time/tck/java/time/format/TCKDateTimeFormatterBuilder.java fail with zh_CN locale
 - 8058539: Platform specific source files may not end up in src.zip
 - 8228393: Add an indicator for external links in javadoc
 - 8226964: [Yaru] GTK L&F: There is no difference between menu selected and de-selected
 - 8229020: Failure on CPUs allowing loads reordering: assert(_tasks[t] == 1) failed: What else?
 - 6394013: C2: Remove VerifyOpto
 - 8228687: [TESTBUG] exclude Container tests from hotspot_misc group
 - 8229032: ProblemList jdk/internal/platform/docker/TestDockerMemoryMetrics.java
 - 8228998: Remove the testing against NSK_FALSE from tests
 - 8228649: [PPC64] SA reads wrong slots from interpreter frames
 - 8229002: Shenandoah: Missing node types in ShenandoahLoadReferenceBarrier::needs_barrier_impl()
 - 8228352: CANON_EQ breaks when pattern contains supplementary codepoint
 - 8228999: ProblemList vmTestbase/nsk/jvmti/GetThreadState/thrstat001/TestDescription.java
 - 8226899: Problemlist compiler/rtm tests
 - Added tag jdk-14+8 for changeset c0023e364b6f
 - Merge
 - 8228764: New library dependencies due to JDK-8222720
 - 8228658: test GetTotalSafepointTime.java fails on fast Linux machines with Total safepoint time 0 ms
 - 8228904: Problemlist docker/TestJcmdWithSideCar.java until JDK-8228850 and JDK-8228960 are fixed
 - 8228907: Some gc argument checking tests fail after JDK-8228855
 - 8227170: (.hg)Ignore the JTwork and JTreport directories generated at the root of the repo
 - 8048556: Unnecessary GCLocker-initiated young GCs
 - 8228855: Test runtime/CommandLine/OptionsValidation/TestOptionsWithRanges fails after JDK-8227123
 - 8228674: LogCompilation: Improvements to log compare feature
 - 8228630: Remove always true parameter to NoSafepointVerifier
 - 8228673: Remove develop flag StrictSafepointChecks
 - 8228775: Shenandoah: Remove useless null-input-verification in Shenandoah/C2 verifier
 - 8193042: NativeLookup::lookup_critical_entry() should only load shared library once
 - 8227250: UserHandler contains ancient LinuxThreads code
 - 8227528: TestAbortVMOnSafepointTimeout.java failed due to "RuntimeException: 'Safepoint sync time longer than' missing from stdout/stderr"
 - 8228725: AArch64: Purge method call format support
 - 8228672: [TESTBUG] gc/metaspace/TestSizeTransitions.java fails on 32-bit platforms
 - 8227609: (fs) Files.newInputStream(...).skip(n) should allow skipping beyond file size
 - 8228743: [PPC64, s390] Implement FastJNIAccessors
 - 8227123: Assertion failure when setting SymbolTableSize larger than 2^17 (131,072)
 - 8191138: Remove deprecated java.security.acl APIs
 - 8228745: sun/security/tools/jarsigner/Warning.java test timeout
 - 8228755: ProblemList sun/security/tools/jarsigner/Warning.java
 - 8228668: compiler/codegen/aes/TestAESMain.java failed with GCM mode must be used with NoPadding
 - 8228742: Remove javax/net/ssl/SSLSocket/Tls13PacketSize.java from ProblemList
 - Merge
 - 8227680: FastJNIAccessors: Check for JVMTI field access event requests at runtime
 - 8078891: java.io.SequenceInputStream.close is not atomic and not idempotent
 - 8181493: (fs) Files.readAttributes(path, BasicFileAttributes.class) should preserve nano second time stamps
 - 8202339: [TESTBUG] Consolidate the tests in runtime/SharedArchiveFile and runtime/appcds
 - 8228596: Class redefinition fails when condy instructions are removed
 - 8228400: Remove built-in AArch64 simulator
 - 8228618: s390: c1/c2 fail to add a metadata relocation in the static call stub
 - 8227407: ZGC: C2 loads and load barriers can get separated by safepoints
 - 8228403: SignTwice.java failed with java.io.FileNotFoundException: File name too long
 - 8228589: BasicJStackTest.java and JcmdOutputEncodingTest.java failing after JDK-8227868
 - 8228645: Don't run sun/security/pkcs11/Cipher/TestKATForGCM.java on buggy NSS solaris versions
 - 8228650: runtime/SharedArchiveFile/CheckDefaultArchiveFile.java test fails on AIX
 - 8156207: Resource allocated BitMaps are often cleared unnecessarily
 - 8223769: Assert triggers with -XX:+StressReflectiveCode
 - 8221205: Obsolete AllowJNIEnvProxy
 - 8228671: Fastdebug VM throws InternalError when publicLookup.in(T) is used to resolve a member
 - 8226796: Reduce debug level logging for oopstorage+blocks
 - 8228631: Fix inconsistent OopStorage::Block owner usage
 - 8228465: HOST locale provider holds wrong era name for GregorianCalendar in US locale
 - 8226808: PreparedStatement javadoc typo
 - 8068376: Validator fails valid XML files due to String == in XSD validator code
 - 8212970: TZ database in "vanguard" format support
 - 8228623: Update copyright year to 2019 for several java properties file
 - 8228407: JVM crashes with shared archive file mismatch
 - 8228602: Add sun/security/tools/jarsigner/PreserveRawManifestEntryAndDigest.java to problem list
 - 8228585: jdk/internal/platform/cgroup/TestCgroupMetrics.java - NumberFormatException because of large long values (memory limit_in_bytes)
 - 8228650: runtime/SharedArchiveFile/CheckDefaultArchiveFile.java test fails on AIX
 - 8228658: test GetTotalSafepointTime.java fails on fast Linux machines with Total safepoint time 0 ms
 - 8228834: Regression caused by JDK-8214542 not installing complete checkpoint data to candidates
 - 8227919: 8213232 causes crashes on solaris sparc64
 - Added tag jdk-13+32 for changeset 929f37a9c35d
 - 8228397: Missing license copyright header in some properties files
 - 8226905: unproblem list applications/ctw/modules/* tests on windows
 - Added tag jdk-13+31 for changeset 6a159c6c23cc
 - 8227260: JNI upcalls should bypass class initialization barrier in c2i adapter
 - 8228341: SignTwice.java fails intermittently on Windows
 - 8227595: keytool/fakegen/DefaultSignatureAlgorithm.java fails due to "exitValue = 6"
 - 8228532: Shenandoah: Implement SBSA::try_resolve_jobject_in_native()
 - 8228578: fix CFData object leak in macosx KeystoreImpl.m
 - 8228571: [TESTBUG] Fix tests failing on non-aot platforms after JDK-8227512
 - Merge
 - 8226771: Update Graal
 - 8184157: (ch) AsynchronousFileChannel hangs with internal error when reading locked file
 - 8228585: jdk/internal/platform/cgroup/TestCgroupMetrics.java - NumberFormatException because of large long values (memory limit_in_bytes)
 - 8180392: SunJCE provider should throw exceptions for unsupported mode and padding combinations
 - 8228501: java_props_macosx.c - provide missing CFRelease for CFLocaleCopyCurrent
 - 8228494: Update nroff version of man pages
 - 8228490: Shenandoah: Shenandoah concurrent root evacuation may race against OopStorage::release()
 - 8228434: jdk/net/Sockets/Test.java fails after JDK-8227642
 - 8227642: [TESTBUG] Make docker tests podman compatible
 - 8225642: ZGC: Crash due to bad oops being spilled to stack in load barriers
 - 8219687: G1 asserts nmethod should not be unloaded during parallel code cache unloading
 - 8227041: runtime/memory/RunUnitTestsConcurrently.java has a memory leak
 - 8224674: NMethod state machine is not monotonic
 - 8228342: Add SignTwice.java to problem list
 - 8217375: jarsigner breaks old signature with long lines in manifest
 - 8227437: S4U2proxy cannot continue because server's TGT cannot be found
 - 8048595: problemList failing/ignored manual tests in security-libs
 - 8226338: Updates to Stateless Resumption
 - Added tag jdk-13+30 for changeset 2e63fb0a885f
 - 8227551: Session Resumption without Server-Side State off by default
 - 8227646: [TESTBUG] appcds/SharedArchiveConsistency timed out
 - 8226522: No compilation error reported when yield is used in incorrect context
 - Merge
 - 8215523: jstat reports incorrect values for OU for CMS GC
 - 8227032: MetaspaceUtils::print_report crashes when called before initialization
 - 8227252: [aix] Disable jdk/java/lang/reflect/exeCallerAccessTest
 - 8227171: provide function names in native stack trace on aix with xlc16
 - 8227173: Minor cleanup of unused code in compile.hpp
 - 8227202: clarify Class.isEnum() doc
 - Merge
 - 8227080: (fs) Files.newInputStream(...).skip(n) is slow
 - Added tag jdk-14+4 for changeset 19d0b382f086
 - Added tag jdk-13+28 for changeset 1e95931e7d8f
 - 8223575: add subspace transitions to gc+metaspace=info log lines
 - 8226566: [JVMCI] java.* classes are no longer necessarily resolved by the boot class loader
 - 8223291: Whitespace is added to CDATA tags when using OutputKeys.INDENT to format XML
 - 8227199: Shenandoah: Remove superfluous calls to can_do_traversal_gc()
 - Merge
 - 8227178: Backout of 8215523
 - 8226238: Improve error output and fix elf issues in os::dll_load
 - 8227085: ZGC: Add on_weak load barrier verification
 - 8227083: ZGC: C2: Generates on_weak barrier for WeakCompareAndSwap
 - 8225770: ZGC: C2: Generates on_weak instead of on_strong barriers
 - 8226956: Add invocation tests for Graal and C1
 - Merge
 - 8226525: HotSpot compile-time error for x86-32
 - 8226976: SessionTimeOutTests uses == operator for String value check
 - 8224480: (fc) java/nio/channels/FileChannel/MapTest.java fails intermittently
 - 8227101: Shenandoah: Use ShenandoahSharedFlag for claimed flag in ShenandoahSerialRoot
 - 8226602: Test convenience reactive primitives from java.net.http with RS TCK
 - 8227041: runtime/memory/RunUnitTestsConcurrently.java has a memory leak
 - 8227035: JVM::printFlags fails in native OOM situations
 - Merge
 - 8226603: accessibility issues in specs/jvmti.html
 - 8226957: Shenandoah: Remove obsoleted ShenandoahStoreCheck option
 - 8225344: Avoid VM_EnableBiasedLocking VM operation during bootstrap if BiasedLockingStartupDelay is 0
 - 8226287: Make process_users_of_allocation handle gc barriers
 - 8226287: Make process_users_of_allocation handle gc barriers
 - 8226967: Minimal VM: FALSE was not declared in this scope
 - 8226778: [JVMCI] Handle unpacking properly in Deoptimiziation::get_cached_box()
 - Merge
 - 8226809: Circular reference in printed stack trace is not correctly indented & ambiguous
 - 8226917: jvmti/scenarios/contention/TC04/tc04t001/TestDescription.java fails on jvmti->InterruptThread (JVMTI_ERROR_THREAD_NOT_ALIVE)
 - 8226533: JVMCI: findUniqueConcreteMethod should handle statically bindable methods directly
 - 8226706: (se) Reduce the number of outer loop iterations on Windows in java/nio/channels/Selector/RacyDeregister.java
 - 8226869: Test java/util/Locale/LocaleProvidersRun.java should enable assertions
 - 8226651: Setting the mgfHash in CK_RSA_PKCS_PSS_PARAMS has no effect
 - 8211723: AppCDS: referring to a jar file in any way other than exactly how it was done during dumping doesn't work
 - 8226878: zero crashes after JDK-8191278
 - 8226876: Assertion in sun/util/locale/provider/CalendarDataUtility on Windows after JDK-8218960
 - 8226514: Replace wildcard address with loopback or local host in tests - part 14
 - 8223173: Implement fast class initialization checks on AARCH64
 - 8222968: ByteArrayPublisher is not thread-safe resulting in broken re-use of HttpRequests
 - 8226879: Memory leak in Type::hashcons
 - Merge
 - 8226783: GTK is not being returned as the System L&F on Gnome
 - 8225437: JvmtiExport::gc_epilogue is unnecessary
 - 8226825: Replace wildcard address with loopback or local host in tests - part 19
 - 8226871: invalid use of incomplete type class MacroAssembler when building minimal after JDK-8191278
 - 8213108: Improve work distribution during remembered set scan
 - 8226510: No compilation error when switch expression has no result expressions
 - 8224650: Add tests to support X25519 and X448 in TLS
 - 8226608: Hide the onjcmd option from the help output
 - 8225497: Update Graal
 - Added tag jdk-13+27 for changeset b7f68ddec66f
 - Added tag jdk-14+3 for changeset e64383344f14
 - 8224716: Javadoc of Int/Long/DoubleSummaryStatistics should mention possible overflow of count
 - 8134672: [TEST_BUG] Some tests should check isDisplayChangeSupported
 - Merge
 - 8225255: Make SATB qset lock-free
 - 8225702: Safepoint counter can't be used for safepoint detection
 - 8224764: Create jtreg test for JDK-8222252
 - 8224137: Analyze and port invocation tests to jtreg and co-locate to jdk repo
 - 8224157: BCEL: update to version 6.3.1
 - 8226785: MandatoryWarningHandler.java contains implementation of Objects.equals functionality
 - 8224849: Flag (?U:...) is allowed for non-capturing groups
 - 8226543: Reduce GC pressure during message digest calculations in password-based encryption
 - 8226607: Inconsistent info between pcsclite.md and MUSCLE headers
 - 8222563: Remove terminally deprecated method netscape.javascript.JSObject::getWindow
 - 8225644: C1 dumps incorrect class name in ClassCastException message
 - 8226515: AArch64: float point register corruption in ZBarrierSetAssembler::load_at
 - 8226607: Inconsistent info between pcsclite.md and MUSCLE headers
 - 8226709: MethodTypeDesc::resolveConstantDesc needs access check per the specification
 - 8226462: [TESTBUG] runtime/appcds/sharedStrings/SysDictCrash.java failed with Cannot dump shared archive
 - 8226730: Missing `@` in code tags
 - 8196467: javax/swing/JInternalFrame/Test6325652.java fails
 - 8226361: jdk ProblemList file contains more than 1 entry for a test
 - 8226699: [BACKOUT] JDK-8221734 Deoptimize with handshakes
 - 8226697: Several tests which need the @key headful keyword are missing it
 - 8225369: [AOT] vm/classfmt/cpl/cplres001/cplres00101m004/cplres00101m004.html fails
 - 8226628: The copyright footer should be enclosed in <footer>
 - 8191278: MappedByteBuffer bulk access memory failures are not handled gracefully
 - 8224506: [TESTBUG] TestDockerMemoryMetrics.java fails with exitValue = 137
 - 8224502: [TESTBUG] JDK docker test TestSystemMetrics.java fails with access issues and OOM
 - 8180005: Provide specific links in KeyManagerFactory and TrustManagerFactory to the Standard Algorithm Names Specification
 - 8226595: jvmti/scenarios/contention/TC04/tc04t001/TestDescription.java still fails due to wrong number of MonitorContendedEntered events
 - 8224555: vmTestbase/nsk/jvmti/scenarios/contention/TC02/tc02t001/TestDescription.java failed
 - 8225146: Accessibility issues in javax/swing/plaf/nimbus/doc-files/properties.html
 - 8226593: Fix HTML in com/sun/jdi/doc-files/signature.html
 - 8226592: Fix HTML in table for jdk.zipfs module-info
 - 8226269: Race in SetupProcessMarkdown
 - Merge
 - 8225257: sun/security/tools/keytool/PSS.java timed out
 - 8226394: [TESTBUG] vmTestbase/metaspace/flags/maxMetaspaceSize/TestDescription.java fails with java.lang.NoClassDefFoundError
 - 8226203: MappedByteBuffer.force method may have no effect on implementation specific map modes
 - 8226538: find-files.gmk gets corrupted if tab completion is used before running make first
 - 8226307: Curve names should be case-insensitive
 - 8225802: Remove unused CSS classes from HTML doclet
 - 8133489: Better messaging for PKIX path validation matching
 - 8223736: jvmti/scenarios/contention/TC04/tc04t001/TestDescription.java fails due to wrong number of MonitorContendedEntered events
 - Merge
 - 8220175: serviceability/dcmd/framework/VMVersionTest.java fails with a timeout
 - 8225590: Shenandoah: Refactor ShenandoahClassLoaderDataRoots API
 - 8226412: Fix command-line help text for javac -target
 - 8223727: com/sun/jndi/ldap/privconn/RunTest.java failed due to hang in LdapRequest.getReplyBer
 - 8226518: Typo in the ConnectionBuilder javadoc examples
 - 8226325: Support building of filtered spec bundles
 - 8225684: [AOT] vmTestbase/vm/oom/production/AlwaysOOMProduction tests fail with AOTed java.base
 - 8220229: Timezone pattern "OOOO" does not result in the full "GMT+00:00" substring
 - 8223794: applications/kitchensink/Kitchensink.java crash bad oop with Graal
 - 8226521: Detect WSL2 as WSL in configure
 - 8226404: bootcycle build uses wrong CDS archive
 - 8226413: Shenandoah: Separate root scanner for SH::object_iterate()
 - 8226468: [aix] loadquery failed error message displayed
 - Merge
 - 8226699: [BACKOUT] JDK-8221734 Deoptimize with handshakes
 - 8214822: Move ConcurrentHashTable VALUE parameter to CONFIG
 - 8226310: Shenandoah: Concurrent evacuation of CLDG
 - 8226311: Shenandoah: Concurrent evacuation of OopStorage backed weak roots
 - 8226683: Remove review suggestion from fix to 8219804
 - 8219804: java/net/MulticastSocket/Promiscuous.java fails intermittently due to NumberFormatException
 - 8226586: Shenandoah: No need to pre-evacuate roots for degenerated GC
 - Merge
 - 8225810: Update JVMCI
 - 8185139: [Graal] Tests which set too restrictive security manager fail with Graal
 - 8224642: Test sun/tools/jcmd/TestJcmdSanity.java fails: Bad file descriptor
 - 8213561: ZipFile/MultiThreadedReadTest.java timed out in tier1
 - 8225766: Curve in certificate should not affect signature scheme when using TLSv1.3
 - 8226286: Remove unused method java.lang.Integer::formatUnsignedInt and cleanup Integer/Long classes
 - Added tag jdk-14+2 for changeset 43627549a488
 - Added tag jdk-13+26 for changeset 0692b67f5462
 - Merge
 - 8226359: Switch to JCov build which supports byte code version 58
 - 8226304: Obsolete the -XX:+FailOverToOldVerifier option
 - 8214469: [macos] PIT: java/awt/Choice/ChoiceKeyEventReaction/ChoiceKeyEventReaction.java fails
 - 8225716: G1 GC: Undefined behaviour in G1BlockOffsetTablePart::block_at_or_preceding
 - 8225789: Empty method parameter type should generate ClassFormatError
 - 8226382: ProblemList java/lang/constant/MethodTypeDescTest.java
 - 8226381: ProblemList java/lang/reflect/PublicMethods/PublicMethodsTest.java
 - 8226360: merge entries in hotspot problem lists
 - 8225682: Reference to JNI spec on java.sun.com
 - 8226313: problem list compiler/types/correctness tests
 - 8225748: Use SHA-256 for javap classfile checksum
 - 8225310: JFR crashed in JfrPeriodicEventSet::requestProtectionDomainCacheTableStatistics()
 - 8225716: G1 GC: Undefined behaviour in G1BlockOffsetTablePart::block_at_or_preceding
 - 8225582: Shenandoah: Enable concurrent evacuation of JNIHandles
 - Merge
 - 8225779: Remove unused CollectedHeap::cell_header_size()
 - 8226303: Examine the HttpRequest.BodyPublishers for exception handling
 - 8226198: use of & instead of && in LibraryCallKit::arraycopy_restore_alloc_state
 - 8200701: jdk/jshell/ExceptionsTest.java fails on Windows, after JDK-8198801
 - 8217348: assert(thread->is_Java_thread()) failed: just checking
 - 8226222: [JVMCI] Export AArch64 field VM_Version::_psr_info.dczid_el0
 - 8225573: Shenandoah: Enhance ShenandoahVerifier to ensure roots to-space invariant
 - 8225680: Address links in java.sql.rowset
 - Merge
 - 8226319: Add forgotten test/jdk/java/net/httpclient/BodySubscribersTest.java
 - 8225804: SA: Remove unused CollectedHeap.oopOffset() method
 - 8226242: Diagnostic output for posix_spawn failure
 - 8225583: Examine the HttpResponse.BodySubscribers for null handling
 - 8226227: Missing include of thread.inline.hpp
 - 8225636: SA can't handle prelinked libraries
 - 8225578: Replace wildcard address with loopback or local host in tests - part 16
 - 8224851: AArch64: fix warnings and errors with Clang and GCC 8.3
 - 8200701: jdk/jshell/ExceptionsTest.java fails on Windows, after JDK-8198801
 - 8225801: Shenandoah: Adjust SA to reflect recent forwarding pointer changes
 - 8225550: Shenandoah: Prevent SH::object_iterate() call's side-effects
 - 8225743: Remove ShenandoahBarrierSetC2::escape_is_barrier_node and related GC interface
 - 8225783: Incorrect use of binary operators on booleans in type.cpp
 - 8217705: HttpClient - wrong exception type when bad status line is received
 - 8225339: Optimize HashMap.keySet()/HashMap.values()/HashSet toArray() methods
 - 8222369: ExecutableElement.getReceiverType returns null instead of NOTYPE
 - Added tag jdk-14+1 for changeset 2f4e214781a1
 - 8223813: (aio) Iocp.getErrorMessage should drop trailing \r\n
 - 8164819: Make javac's toString() on annotation objects consistent with core reflection
 - 8225543: Jcmd fails to attach to the Java process on Linux using the main class name if whitespace options were used to launch the process
 - 8181837: [Graal] compiler/jvmci/SecurityRestrictionsTest.java fails with AccessControlException
 - 8225801: Shenandoah: Adjust SA to reflect recent forwarding pointer changes
 - 8225392: Comparison builds are failing due to cacerts file
 - 8224829: AsyncSSLSocketClose.java has timing issue
 - 8225695: 32-bit build failures after JDK-8080462 (Update SunPKCS11 provider with PKCS11 v2.40 support)
 - Added tag jdk-13+25 for changeset 22b3b7983ada
 - 8209590: compiler/compilercontrol/DontInlineCommandTest.java test fails with "Inline message differs" error
 - 8225730: Add sun/security/pkcs11/tls/tls12/FipsModeTLS12.java to ProblemList for linux
 - 8225746: hotspot problem lists list unexciting tests
 - 8225543: Jcmd fails to attach to the Java process on Linux using the main class name if whitespace options were used to launch the process
 - 8224881: Shenandoah: trashing "Collection Set, Pinned" region during Degenerated GC
 - 8214542: JFR: Old Object Sample event slow on a deep heap in debug builds
 - 8226719: Kerberos login to Windows 2000 failed with "Inappropriate type of checksum in message"
 - 8226366: Excessive ServiceThread wakeups for OopStorage cleanup
 - 8226596: Accessibility errors in jdwp-protocol.html
 - 8227112: exclude compiler/intrinsics/sha/sanity tests from AOT runs
 - 8225679: reference to http://java.sun.com/products/JavaManagement/download.html
 - 8224881: Shenandoah: trashing "Collection Set, Pinned" region during Degenerated GC
 - Merge
 - 8225730: Add sun/security/pkcs11/tls/tls12/FipsModeTLS12.java to ProblemList for linux
 - 8225180: SignedObject with invalid Key not throwing the InvalidKeyException in Windows
 - 8214527: ZGC for Aarch64
 - 8220657: JFR.dump does not work when filename is set
 - 8225418: G1: region attribute remembered set state disagrees with actual remembered set state
 - 8225663: [testbug] Missing JNIEXPORT in XAbortProvoker native function
 - 8216417: cleanup of IPv6 scope-id handling
 - Merge
 - 8224161: Check.checkOverrideClashes n^2 algorithm
 - 8224184: jshell got IOException at exiting with AIX
 - Merge
 - 8225676: cleanup hotspot ProblemList
 - 8208236: [TESTBUG] vmTestbase/nsk/stress/stack tests fail by timeout
 - 6722928: Support SSPI as a native GSS-API provider
 - 8171279: Support X25519 and X448 in TLS
 - 8225671: Support HTML 5 character references in javadoc
 - 8225675: Outdated citation of JLS in java.lang.ref.Reference
 - 8217676: Upgrade libpng to 1.6.37
 - 8227605: Kitchensink fails "assert((((klass)->trace_id() & (JfrTraceIdEpoch::leakp_in_use_this_epoch_bit())) != 0)) failed: invariant"
 - 8228601: AArch64: Fix interpreter code at JVMCI deoptimization entry
 - 8228710: Disable AggressiveUnboxing until JDK-8224957 is fixed
 - 8225622: [AOT] runtime/SharedArchiveFile/TestInterpreterMethodEntries.java crashed with AOTed java.base
 - 8158048: Fix failure message from jtreg gtest wrapper
 - 8224710: [TESTBUG] dynamicArchive/ExcludedClasses.java test failed in tier6 testing on Windows
 - 8223796: JVMCIEnv::get_jvmci_type does not keep klasses alive
 - 8225651: Missed the `@` in a couple of code tags of SocketImpl
 - 8225453: is_busy diagnostics and other baseline cleanups from Async Monitor Deflation project
 - 8224090: [PPC64] Fix SLP patterns for filling an array with double float literals
 - 8224827: Implement fast class initialization checks on s390
 - 8223249: [s390] Cleanup TemplateInterpreterGenerator::generate_fixed_frame
 - 8224658: Unsafe access C2 compile fails with assert(flat != TypePtr::BOTTOM) failed: cannot alias-analyze an untyped ptr: adr_type = NULL
 - 8220018: javac crash when compiling try-catch-finally inside switch expression
 - 8223364: Bad placement of anchor relative to header
 - 8225478: Make G1CMRootRegions independent of HeapRegions
 - Merge
 - 7086604: (reflect) Clarifications to javadoc for getGeneric*Type methods in j.l.r
 - 8225487: giflib legal file is missing attribution for openbsd-reallocarray.c
 - 8214546: Start of release updates for JDK 14
 - Added tag jdk-14+0 for changeset 22b3b7983ada
 - 8211018: Session Resumption without Server-Side State
 - 8221246: NullPointerException within Win32ShellFolder2
 - 8225572: Shenandoah: Move JNIHandles root out of serial roots
 - 8066173: compiler/types/correctness/OffTest.java failed with assert
 - 8214399: Javap -help should provide information about --multi-release option
 - 8080462: Update SunPKCS11 provider with PKCS11 v2.40 support
 - 8217731: Font rendering and glyph spacing changed from jdk-8 to jdk-11
 - 8225144: [macos] In Aqua L&F backspace key does not delete when Shift is pressed
 - 8225189: Multiple JNI calls within critical region in ZIP Library
 - 8225512: Replace wildcard address with loopback or local host in tests - part 15
 - 8225511: javax/swing/JWindow/ShapedAndTranslucentWindows/ShapedTranslucentPerPixelTranslucentGradient.java fails in linux-x64
 - 8227175: ZGC: ZHeapIterator visits potentially dead objects
 - 8227083: ZGC: C2: Generates on_weak barrier for WeakCompareAndSwap
 - 8225770: ZGC: C2: Generates on_weak instead of on_strong barriers
 - 8227055: Minor edits to launcher help text
 - 8226963: More clarification on possible sequencing error in GSSContext::unwrap
 - 8227061: KDC.java test behaves incorrectly when AS-REQ contains a PAData not PA-ENC-TS-ENC
 - 8224865: Replace wildcard address with loopback or local host in tests - part 13
 - 8225429: Regression in disassembly quality
 - 8224847: gc/stress/TestReclaimStringsLeaksMemory.java fails with reserved greater than expected
 - 8225568: ProblemList compiler/compilercontrol/jcmd/ClearDirectivesFileStackTest.java
 - 8225564: Remove wrong assert in clean_catch_blocks
 - 8224871: os::attempt_reserve_memory_at() tries too hard
 - 8225567: Wrong file headers with 8202414 fix changeset
 - 8225426: Replace plain with system-default in Socket and ServerSocket
 - 8224826: Implement fast class initialization checks on PPC64
 - 8225509: clean_catch_blocks must add preds first
 - 8209917: fix TODO in GatherDiagnosticInfoObserver
 - 8205131: remove Runtime trace methods
 - 8225532: Update source enums to describe 12 and 13 language features
 - 8225492: Update JVMCI
 - 8225514: Shenandoah: ShenandoahCodeRoots should inherit from AllStatic
 - 8222828: vmTestbase/nsk/jdi/BScenarios/multithrd/tc02x004/TestDescription.java failed
 - 8222412: AARCH64: multiple instructions encoding issues
 - 8224952: RI deviates from JVMS - non-zero minor_version for class files throws UnsupportedClassVersionError
 - 8221719: Jarsigner fails to verify signed by alias if alias given in wrong case
 - 8225227: ZGC: Be exact in what load barrier to use in ZHeapIterator
 - 8224966: ZGC: Don't skip oop verification in OopMapSet::all_do()
 - 8225368: broken links in java.desktop files
 - 8224171: The cleanup multi-font related code in the XFontPeer
 - 8223045: GraphicsEnvironment does not detect resolution changes in multiscreen systems
 - 8222083: Support of "64-bit IEEE floating point" encoding for the AU file format
 - Merge
 - 8217739: Cannot reuse java.base UnixConstants.java from target in BuildJDK when cross compiling
 - 8223837: Add -XX:MinHeapSize flag to set the minimum heap size
 - 8225118: Robot.createScreenCapture() returns black image on HiDPI linux with gtk3
 - 8224958: add os::dll_load calls to event log
 - 8225448: String::translateEscapes javadoc has accessibility issues
 - 8216988: ServerSocket.implAccept should include warnings about Socket type/state
 - 8225424: Add jdk.net.usePlainSocketImpl runs to a couple of tests
 - 8225441: Cleanup ShenandoahHeap::atomic_compare_exchange_oop
 - 8225357: Rewire ShenandoahHeap::maybe_update_with_forwarded for contending fixups
 - 8222467: ZGC: Log min/max/softmax capacity
 - 8222182: ZGC: Use SoftMaxHeapSize to guide GC heuristics
 - 8222145: Add -XX:SoftMaxHeapSize flag
 - 8225340: ZGC: Add logging of High Usage rule
 - 8225347: [s390] Unexpected exit from stack overflow test
 - 8223782: jshell parser should handle Text Blocks
 - 8225402: events logging in deoptimization.cpp should go to deopt-log
 - 8225469: clean up problem lists
 - 8224139: Deprecate -XX:FlightRecorder option
 - 8206074: nsk/jdi/EventRequestManager/createStepRequest/crstepreq001/TestDescription.java is timing out
 - 8225465: Add @jls tags to receiver type methods
 - 8225397: Integer value miscalculation in toString() method of BitSet
 - 8222371: Use UL for TraceNMethodInstalls code
 - 8208379: compiler/jvmci/events/JvmciNotifyInstallEventTest.java failed with "Got unexpected event count after 2nd install attempt: expected 9 to equal 2"
 - 8224617: (fs) java/nio/file/FileStore/Basic.java found filesystem twice
 - 8225450: use @file in CtwRunner
 - 8219205: JFR file without license header
 - 8224151: Test vmTestbase/nsk/sysdict/vm/stress/chain/chain007/chain007.java might hang with release binaries
 - 8216283: Allow shorter method sampling interval than 10 ms
 - 8225321: Repeated use of {@systemProperty} in a file causes duplicate ids
 - 8197927: Allow the system property `java.vendor.version` to be undefined
 - 8224876: javax/swing/JWindow/ShapedAndTranslucentWindows/ShapedPerPixelTranslucentGradient.java fails on linux-x64
 - Merge
 - Merge
 - 8225178: [Solaris] os::signal() should call sigaction() with SA_SIGINFO
 - 8196096: javax/swing/JPopupMenu/6580930/bug6580930.java fails
 - 8223678: Add Visual Studio Code workspace generation support (for native code)
 - 8225199: [Graal] compiler/jvmci/compilerToVM/IsMatureVsReprofileTest.java fails with -XX:CompileThresholdScaling=0.1
 - 8225212: ProblemList gc/stress/TestReclaimStringsLeaksMemory.java
 - 8225208: Re-Problem list jdk/jshell/ExceptionsTest.java fails on windows
 - 8225207: redundant <p> in Instrumentation.java
 - 8224247: AllocateOldGenAt fires assertion failure
 - 8225202: Add missing include after JDK-8223320
 - 8223320: [AOT] jck test api/javax_script/ScriptEngine/PutGet.html fails when test classes are AOTed
 - 8225171: Remove leftovers in shenandoahBarrierSetC1.cpp
 - 8225140: Build fails if directory contains 'unix'
 - 8199623: JShell: corralling not restored on drop
 - 8225151: JShell API: Fix position of @jls tag
 - 8224816: Provide os::processor_id() implementation for Mac OS
 - 8224814: Remove dead JNIHandleBlock freelist code
 - 8225046: Shenandoah metrics logs refactoring
 - 8225105: java/awt/Focus/ShowFrameCheckForegroundTest/ShowFrameCheckForegroundTest.java fails in Windows 10
 - Merge
 - 8219901: Noto fonts for East Asian countries cannot belong to CompositeFont
 - 8212807: tools/jar/multiRelease/Basic.java times out
 - 8224056: Fix some assignments of string literals to LPSTR (instead of LPCSTR)
 - 8225048: Shenandoah x86_32 support
 - 8225111: Make Shenandoah tests work with 32-bit VMs
 - 8225104: 32-bit build failures after JDK-8222252
 - 8223688: JShell: crash on the instantiation of raw anonymous class
 - 8080353: JShell: Better error message on attempting to add default method
 - 8225061: Performance regression in Regex
 - 8225134: Update man-page files
 - 8223336: Assert in VirtualMemoryTracker::remove_released_region when running the SharedArchiveConsistency.java test with -XX:NativeMemoryTracking=detail
 - 8224083: javadoc Reporter generates warning for Kind.NOTE
 - 8225032: Fix some C++ conformance issues in AWT Windows code
 - 8223271: SplashScreen is still shown if defaulting to headless on MacOS
 - 8225007: java/awt/print/PrinterJob/LandscapeStackOverflow.java may hang
 - 8225020: Problem list some sanity test failures
 - 8224824: ProblemList java/awt/Color/AlphaColorTest failure in linux_x64
 - 8224821: java/awt/Focus/NoAutotransferToDisabledCompTest/NoAutotransferToDisabledCompTest.java fails linux-x64
 - 8224830: test/jdk/java/awt/Focus/ModalExcludedWindowClickTest/ModalExcludedWindowClickTest.java fails on linux-x64
 - 8224778: test/jdk/demo/jfc/J2Ddemo/J2DdemoTest.java cannot find J2Ddemo.jar
 - 8224632: testbug: java/awt/dnd/RemoveDropTargetCrashTest/RemoveDropTargetCrashTest.java fails on MacOS
 - 8224771: backout RemoveDropTargetCrashTest.java fix to re-push with correct bugid
 - 8224705: Tests that need to be problem-listed or have printer resources
 - 8224673: Adjust permission for delayed starting of debugging
 - 8225475: Node budget asserts on x86_32/64
 - 8226943: compile error in libfollowref003.cpp with XCode 10.2 on macosx
 - 8223804: [macos] remove obsoleted reference to security framework in launcher code
 - 8224645: Only test multicast interfaces if they exist
 - 8223967: Implement Text Blocks (Preview) in the Java compiler
 - 8203444: String::formatted (Preview)
 - 8223780: String::translateEscapes (Preview)
 - 8223775: String::stripIndent (Preview)
 - 8219992: Correct the documentation of PrintWriter to refer System.lineSeparator
 - 8215032: Support Kerberos cross-realm referrals (RFC 6806)
 - 8224905: java/lang/ProcessBuilder/Basic.java#id1 failed with stream closed
 - 8224217: RecordingInfo should use textual representation of path
 - 8225304: Tiny HTML error (bad heading) in org.ietf.jgss package-info.java
 - 8225141: Better handling of classes in error state in fast class initialization checks
 - 8225106: C2: Parse::clinit_deopt asserts when holder klass is in error state
 - 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
 - 8224853: CDS address sanitizer errors
 - 8225325: Add tests for redefining a class' private method during resolution of the bootstrap specifier
 - 8205126: JVMTI spec incorrectly states that PopFrame can not be called on the current thread
 - 8225390: ProblemList sun/security/pkcs11/sslecc/ClientJSSEServerJSSE.java due to JDK-8161536
 - Added tag jdk-13+24 for changeset 7e2238451585
 - 8225386: test for JDK-8216261 fails in Windows
 - 8225182: JNI exception pending in DestroyXIMCallback of awt_InputMethod.c:1327
 - 8223942: Missing methods in ClientCodeWrapper$WrappedJavaFileManager
 - 8209381: Default CDS classlist generation should run with an explicit locale setting
 - 8216261: Javap ignores default modifier on interfaces
 - 8225348: serviceability/dcmd/vm/EventsTest.java failed
 - 8223777: In posix_spawn mode, failing to exec() jspawnhelper does not result in an error
 - 8188872: runtime/ErrorHandling/TimeoutInErrorHandlingTest.java fails intermittently
 - 8224793: os::die() does not honor CreateCoredumpOnCrash option
 - 8225353: Add @jls links to java.lang.Enum
 - 8225225: stringStream internal buffer should always be zero terminated
 - 8225305: ProblemList java/lang/invoke/VarHandles tests
 - 8225346: Convert file to HTML5
 - 8221368: Error message when module main class cannot be loaded is missing exception details
 - 8221709: replace use of style blockListLast
 - 8220238: Enhancing j.l.Runtime/System::gc specification with an explicit 'no guarantee' statement
 - 8225342: Shenandoah: use COMPILER2_OR_JVMCI macro consistently
 - 8225341: Shenandoah: CM::update_thread_roots() needs to handle derived pointers
 - 8225037: java.net.JarURLConnection::getJarEntry() throws NullPointerException
 - 8211703: JInternalFrame : java.lang.AssertionError: cannot find the internal frame
 - 8224629: Unnecessary cast in LambdaToMethod
 - 8223773: DateTimeFormatter Fails to throw an Exception on Invalid CLOCK_HOUR_OF_AMPM and HOUR_OF_AMPM
 - 8219788: Configure recommends JDK 8
 - 8224692: runtime/appcds tests crash in "HotSpotJVMCI::compute_offset" when running in Graal as JIT mode
 - 8219149: ProcessTools.ProcessBuilder should print timing info for subprocesses
 - 8225117: java/math/BigInteger/SymmetricRangeTests.java fails with ParseException
 - 8225129: Fix minor HTML issues in java.naming
 - 8222936: mlvm/anonloader/stress/randomBytecodes/Test.java fails due to "ERROR: There were 1 hangups during parsing."
 - 8225094: Fix minor HTML issues in jdk.zipfs
 - 8225016: Dead code due to VMOperationQueue::add() always returning true
 - 8194231: java/net/DatagramSocket/ReuseAddressTest.java failed with java.net.BindException: Address already in use: Cannot bind
 - 8224973: URLStreamHandler.openConnection(URL,Proxy) - spec and implementation mismatch
 - 8173196: [REDO] C2 does not optimize redundant memory operations with G1
 - 8223363: Bad node estimate assertion failure
 - 8223693: Memory wastage in size of per-region type buffers in GC
 - 8223162: Improve ergonomics for Sparse PRT entry sizing
 - 8214702: Wrong text position for whitespaced string in printing Swing text
 - 8224580: Matcher can cause oop field/array element to be reloaded
 - 8225214: Socket.getOption(SocketOption) not returning the expected type for the StandardSocketOptions.SO_LINGER
 - 8222103: [testbug] compiler/compilercontrol/jcmd/ClearDirectivesFileStackTest may exceed VM limit
 - 8225084: gc/z/TestHighUsage.java fails with unexpected allocation stall
 - 8224965: ZGC: Strengthen ZHeap::is_in()
 - 8224962: ZGC: Strengthen ZHeap::is_oop()
 - 8224240: Properties.load fails to throw IAE on malformed unicode in certain circumstances
 - 8225179: (regex) Minor Pattern cleanup
 - 8225229: Shenandoah: trim down default number of GC threads
 - 8224181: On child process spawn, child may write to random file descriptor instead of the fail pipe
 - 8224600: Provide VM.events command
 - 8225315: test java/util/ArrayDeque/WhiteBox.java isn't part of the jdk_collections test group
 - 8193255: Root Certificates should be stored in text format and assembled at build time
 - 8225198: Optimize regex tree for greedy quantifiers of type {N,}
 - 8225217: Backout: JDK-8224814: Remove dead JNIHandleBlock freelist code
 - 8225307: ProblemList compiler/codegen/TestCharVect2.java and compiler/c2/cr6340864/TestLongVect.java
 - 8225324: Bad HTML in jdk.jfr module-info.java
 - 8225314: broken links in java.base
 - 8225309: HTML issues in jdk.jdi module
 - 8225306: bad headings in java.sql.rowset SyncProvider.java
 - 8222448: java/lang/reflect/PublicMethods/PublicMethodsTest.java times out
 - 8225019: Update JVMCI
 - 8217412: deprecate rmic for removal
 - 8223805: DocCommentParser should allow for <main> and </main>
 - 8212630: jtreg/gc/logging/TestMetaSpaceLog.java failed with Agent timed out
 - 8178982: Javadoc search specification
 - 8222468: [TESTBUG] vmTestbase/metaspace/flags/maxMetaspaceSize/TestDescription.java fails with java.lang.NoClassDefFoundError
 - Merge
 - 8223396: [TESTBUG] several jfr tests do not clean up files created in /tmp
 - 6394787: Typos in javadoc of OIS.readObjectOverride and OOS.writeObjectOverride
 - 8214126: Method signatures not formatted correctly in browser
 - 8222091: Javadoc does not handle package annotations correctly on package-info.java
 - 8225110: IGV build definition uses non-secure transport
 - 8224986: (str) optimize StringBuilder.append(CharSequence, int, int) for String arguments
 - 8224538: LoadBarrierNode::common_barrier must check address
 - 8216535: tools/jimage/JImageExtractTest.java timed out
 - 8225014: Separate ShenandoahRootScanner method for object_iterate
 - 8220251: fix headings in java.management
 - 8224978: Shenandoah: Allows root verifier to verify some roots outside safepoints with proper locks
 - 8224687: Add clarifying overrides of Element.asType to more specific subinterfaces
 - 8223718: Checks in check_slot_type_no_lvt() should be always executed
 - 8225077: fix references to broken link in java.compiler module
 - 8223504: Improve performance of forall loops by better inlining of "iterator()" methods
 - 8224828: aarch64: rflags is not correct after safepoint poll
 - 8225066: Add missing file
 - 8224257: fix issues in files generated by pandoc
 - 8225060: java.net.DefaultInterface invokes NetworkInterface::getInetAddresses without doPriv
 - 8223216: C2: Unify class initialization checks between new, getstatic, and putstatic
 - 8224767: Add String constants for Canonical XML 1.1 URIs
 - 8222252: Java ergonomics limits heap to 128GB with disabled compressed oops
 - 8224946: jrtfs URI to Path and Path to URI conversions are wrong
 - 8224730: java.net.ServerSocket::toString not invoking checkConnect
 - 8223213: Implement fast class initialization checks on x86-64
 - 8224172: assert(jfr_is_event_enabled(id)) failed: invariant
 - 8225017: [TESTBUG] gc/shenandoah/oom/TestThreadFailure.java takes too long
 - 8221481: Reimplement the Legacy Socket API
 - 8224790: Remove Xusage.txt file
 - Added tag jdk-13+23 for changeset b034d2dee5fc
 - 8225022: Put compiler/graalunit/JttThreadsTest.java on ProblemList-graal.txt
 - 8224011: Failure handling in ExecuteWithLog fails in run-test-prebuilt
 - 8224729: Cleanups in sun/security/provider/certpath/ldap/LDAPCertStoreImpl.java
 - 8224789: Parsing repetition count in regex does not detect numeric overflow
 - 8224991: Problemlist javax/net/ssl/ServerName/SSLEngineExplorerMatchedSNI.java
 - 8224931: disable JAOTC invokedynamic support until 8223533 is fixed
 - 8224081: SOCKS v4 doesn't work with IPv6
 - 8225005: Xerces 2.12.0: License file
 - 8224945: googlemock update breaks the build of arm32 and ppc
 - 8224012: AnnotatedType implementations of hashCode() lead to StackOverflowError
 - 8224875: Shenandoah: ParallelCleaning code unloading should take lock to protect shared code roots array
 - 8223053: [xmldsig] Add KeyValue::EC_TYPE
 - 8223660: jtreg: Decouple Unsafe from RTM tests
 - 8224984: Problemlist javax/net/ssl/SSLSocket/Tls13PacketSize.java
 - 8224981: Problemlist test/jdk/sun/security/pkcs11/tls/tls12/FipsModeTLS12.java
 - 8224982: JDK-8222318 breaks tools/doclint/html/EntitiesTest.java
 - 8224932: Shenandoah: Rename ShenandoahHeapLock, make it general purpose lock
 - 8224970: ShenandoahRootScanner::roots_do assert is too strong
 - 8224477: java.net socket types new-style socket option methods - spec and impl mismatch
 - 8224763: Update man pages to show deprecation of -Xverify:none
 - 8224496: Shenandoah compilation fails with assert(is_CountedLoopEnd()) failed: invalid node class
 - 8217089: JFR: Lazy install os interface components for improved startup
 - 8222318: javadoc does not accept valid HTML5 entity names
 - 8224584: Shenandoah: Eliminate forwarding pointer word
 - 8223392: Add missing BitMap comments for JDK-8222986
 - 8224750: Display thread once in Internal exceptions event log lines
 - 8223814: SA: jhsdb common help needs to be more detailed
 - 8223482: Unsupported ciphersuites may be offered by a TLS client
 - 8220449: serviceability/dcmd/compiler/CodelistTest.java failure
 - 8224908: Revert: 8216553: JrtFileSystemProvider getPath(URI) omits /modules element from file path
 - 8224796: C code is not compiled correctly due to undefined "i386"
 - 8224795: some runtime/SelectionResolution tests are timing out
 - Merge
 - 8224885: ProblemList sun/security/tools/keytool/KeyToolTest.java and WeakAlgTest.java on Solaris
 - Merge
 - 8219147: Javadoc should expose covariant return type overrides
 - 8042904: apple.security.KeychainStore.getSalt() calling generateSeed()
 - 8224783: Javadoc of String strip methods uses link where linkplain would be better
 - 8224558: Fix replicateB encoding
 - 8224548: [TESTBUG] runtime/appcds/jvmti/ClassFileLoadHookTest.java failed: must be shared
 - Merge
 - 8216553: JrtFIleSystemProvider getPath(URI) omits /modules element from file path
 - 8224880: AArch64: java/javac error with AllocatePrefetchDistance
 - 8224870: Problemlist compiler/c2/Test8004741.java until JDK-8214904 is fixed
 - Merge
 - 8221121: applications/microbenchmarks are encountering crashes in tier5
 - 8220688: [TESTBUG] runtime/NMT/MallocStressTest.java timed out
 - 8224672: (lib)hsdis-<arch>.so search incorrect after JDK-8213084
 - 8213416: Replace some enums with static const members in hotspot/compiler
 - 8222414: bring googlemock v1.8.1
 - 8224751: Shenandoah: Shenandoah Verifier should select proper roots according to current GC cycle
 - 8224761: Replace wildcard address with loopback or local host in tests - part 12
 - 8224836: Backout: JDK-8224626: Shenandoah: Elide barriers on uncommon traps
 - 8224035: Replace wildcard address with loopback or local host in tests - part 9
 - 8224221: add memprotect calls to event log
 - 8224252: [TESTBUG] hotspot/test/serviceability/sa/sadebugd/SADebugDTest.java is timing out again after fix for JDK-8163805
 - 8224727: Problem list test security/infra/java/security/cert/CertPathValidator/certification/ActalisCA.java
 - 8046018: JVMTI Spec: can_redefine_any_class capability spec is inconsistent
 - 6682540: Incorrect SASL DIGEST-MD5 behavior
 - 8224682: Remove the com.sun.CORBA.ORBIorTypeCheckRegistryFilter security property
 - 8223658: Performance regression of XML.validation in 13-b19
 - 8202651: Test ComodoCA.java fails
 - 8223245: Miscellaneous changes imported from jsr166 CVS 2019-06
 - 8220478: java/util/concurrent/ConcurrentHashMap/ToArray.java timed out intermittently
 - 8224024: java/util/concurrent/BlockingQueue/DrainToFails.java testBounded fails intermittently
 - 8224176: Fix inconsistencies in @jls tags in java.util.concurrent
 - 8224698: ConcurrentSkipListMap.java does not compile with the Eclipse Java Compiler
 - 8224603: Replace wildcard address with loopback or local host in tests - part 11
 - 8224742: JLONG_FORMAT_W incompatible with type jlong
 - 8224671: AArch64: mauve System.arraycopy test failure
 - 8224115: Shenandoah: Eliminate RWLock that protects recorded nmethod data array
 - 8224679: Shenandoah: Make ShenandoahParallelCodeCacheIterator noncopyable
 - 8220702: compiling in the context of an automatic module disallows --add-modules ALL-MODULE-PATH
 - 8214563: Use {@systemProperty} in specification of system properties in java.nio packages
 - 8224723: [TESTBUG] compiler/arraycopy/TestArrayCopyWithBadOffset.java failed
 - 8224652: 32-bit build failures after JDK-8213084
 - 8220394: bufferedStream does not honor size limit
 - 8223553: Fix code constructs that do not compile with the Eclipse Java Compiler
 - 8224177: Harden annotation processing framework to irregular behavior from processors
 - 8224706: [TESTBUG] problem list failing JDK docker API tests
 - 8224715: ProblemList compiler/graalunit/HotspotJdk9Test.java
 - 8224145: Build compare script fails intermittently on test image native libraries
 - 8224677: Dtrace .d files clash with make dependency .d files
 - 7061590: Javadoc issues in Charset and StandardCharsets
 - 8224667: Shenandoah: Post-LRB cleanup
 - 8224689: ProblemList runtime/appcds/SharedArchiveConsistency.java
 - 8221431: Support for Unicode 12.1
 - 8224165: [TESTBUG] Docker tests produce excessive output
 - 8224264: [TESTBUG] HelloDynamicCustom.java test failed on the Windows platform in tiers 6 and 7 testing
 - 8224635: Revert 8224256 and add back java/security/SecureClassLoader/DefineClass.java test
 - 8224202: Speed up Properties.load
 - 8221543: Indify-dependent microbenchmarks are broken
 - 8224656: Problem list java/security/SecureClassLoader/DefineClass.java until JDK-8224635 is fixed
 - 8224626: Shenandoah: Elide barriers on uncommon traps
 - 8221734: Deoptimize with handshakes
 - 8223581: C2 compilation failed with assert(!q->is_MergeMem())
 - 8224539: C2 compilation fails during ArrayCopyNode optimizations with assert(i < _max) failed: oob: i=1, _max=1
 - 8224185: ZGC: Introduce "High Usage" rule
 - 8224628: Note that type parameters are not visited by ElementScanners
 - 8215156: Deprecate the -Xfuture option
 - 8224087: Compile C code for at least C99 Standard compliance
 - Added tag jdk-13+22 for changeset 181986c54764
 - 8224187: Refactor arraycopy_prologue to allow ZGC read barriers on arraycopy
 - 8224570: Update ProblemList-graal.txt
 - 8224160: Move G1RemSetScanClosure into g1RemSet.cpp file
 - 8224579: ResourceMark not declared in shenandoahRootProcessor.inline.hpp with --disable-precompiled-headers
 - 8224573: Fix windows build after JDK-8221507
 - 8224193: stringStream should not use Resouce Area
 - 8224487: outputStream should not be copyable
 - 8218997: Xusage text, man help, etc doesn't mention -Xlog option
 - 8223593: Refactor code for reallocating storage
 - 8224167: Refactor PtrQueue completed buffer processing
 - 8219692: DOM and SAX parsers ignore namespace
 - 8224105: Cannot parse JapaneseDate string on some specified locales
 - 8223725: j.l.c.MethodHandleDesc::of throws undocumented exception IllegalArgumentException
 - 8222482: [Graal] Update java-allocation-instrumenter.jar handling in graalunit README.md
 - 8223723: j.l.c.MethodTypeDesc.dropParameterTypes? throws the undocumented exception: IllegalArgumentException
 - 8220293: Deadlock in JFR string pool
 - 8224495: Shenandoah: Do not rescan code roots in final mark pause if it is not degenerated GC
 - 8224034: [TESTBUG] runtime/ErrorHandlerTest/ErrorHandler fails intermittently for case 13 on Windows
 - 8224119: Safepoint cleanup logging logs times for things it doesn't do
 - 8213084: Rework and enhance Print[Opto]Assembly output
 - 8224230: [PPC64, s390] Support AsyncGetCallTrace
 - 8223733: "Detail" in headings should be "Details"
 - 8223313: Use handshakes for CountStackFrames
 - 8221507: Implement JFR Events for Shenandoah
 - 8223306: Remove threads linked list (use ThreadsList's array in SA)
 - 8183273: Clarify Instrumentation interface should not be implemented outside java.instrument module
 - 8224166: Create a taglet to better handle @jls and @jvms tags
 - 8224175: Fix inconsistencies in @jls and @jvms tags
 - 8224256: test/jdk/java/security/SecureClassLoader/DefineClass.java hardcodes 127.0.0.1
 - 7107615: scalability bloker in javax.crypto.JceSecurity
 - 8224522: Shenandoah should apply barriers on deoptimization
 - 8224568: minimal and zero build fails after JDK-8213084
 - 8220072: GCC 8.3 reports errors in java.base
 - 8224529: [TESTBUG] JFR TestShenandoahHeapRegion* tests fail on build w/o Shenandoah
 - 8218966: AArch64: String.compareTo() can read memory after string
 - 8215792: AArch64: String.indexOf generates incorrect result
 - 8220672: [TESTBUG] TestCPUSets should check that cpuset does not exceed available cores
 - 8224248: test/jdk/java/net/InetAddress/CheckJNI.java assumes 127.0.0.1 is available
 - 8224500: Put HeapMonitorStatArrayCorrectnessTest in the problem list
 - 8214545: sun/management/jmxremote/bootstrap tests hang in revokeall.exe on Windows
 - 8223914: specification of j.l.c.MethodTypeDesc::of should document better the exceptions thrown
 - 8224525: Shenandoah: Eliminate shenandoah verifier's side-effects
 - 8224204: Replace wildcard address with loopback or local host in tests - part 10
 - 8224203: Remove need to specify type when using FLAG_SET macros
 - 8224201: Simplify JVM flag macro expansions
 - 8224508: Shenandoah: Need to update thread roots in final mark for piggyback ref update cycle
 - 8224589: Improve startup behavior of SecurityProperties
 - 8223663: Update links for tool guides
 - Merge
 - 8224174: java.lang.Number has a default constructor
 - 8224014: Don't run test/jdk/java/net/NetworkInterface/IPv4Only.java in IPv6 only environment
 - 8224019: test/jdk/java/nio/channels/DatagramChannel/BasicMulticastTests.java assumes IPv4 is always available
 - 8223214: Inet6AddressImpl.loopbackAddress() should choose loopback address that is available
 - 8222807: Address iteration with invalid ZIP header entries
 - 8223444: Improve CodeHeap Free Space Management
 - 8221967: InternTest.java timed out
 - 8224179: Shenandoah: CTW test failures with traversal GC
 - 8224210: Shenandoah: Refactor ShenandoahRootScanner to support scanning CSet codecache roots
 - 8206879: Currency decimal marker incorrect for Peru
 - 8223856: Replace wildcard address with loopback or local host in tests - part 8
 - 8130017: use _FORTIFY_SOURCE in gcc fastdebug builds
 - 8219313: Support module specific stylesheets
 - 8219781: Localized names for Japanese era Reiwa in COMPAT provider
 - 8222492: G1 unnecessarily scans remembered set cards for regions that already have been evacuated
 - 8222302: [TESTBUG]test/hotspot/jtreg/compiler/intrinsics/sha/cli/TestUseSHAOptionOnUnsupportedCPU.java fails on any other CPU
 - 8224170: Build failures after JDK-8207812 (Implement Dynamic CDS Archive)
 - 8163805: hotspot/test/serviceability/sa/sadebugd/SADebugDTest.java failed with timed out
 - 8223595: Consider updating jdk.jshell module description
 - 8223803: j.l.c.MethodTypeDesc::insertParameterTypes? doesn't control type of parameters
 - 8223951: Shenandoah: Only need to update thread roots during final update refs
 - 8207812: Implement Dynamic CDS Archive
 - 8220166: Performance regression in deserialization (4-6% in SPECjbb)
 - 8224028: loop initial declarations introduced by JDK-8184770
 - 8223774: Shenandoah: Refactor ShenandoahRootProcessor and family
 - 8224038: Fix remaining InCSetState mentions
 - 8223961: ZGC: Unexpected behaviour due to ZMetronome::wait_for_tick() oversleeping
 - 8223472: volatile long field corruption on x86_32
 - 8222276: (zipfs) Refactoring and cleanups to prepare for JDK-8213031
 - 8220656: ARM32: -XX:MaxVectorSize=16 makes SIGILL
 - 8223944: fix zlib related building docu and comments
 - 8223665: SA: debugd options should follow jhsdb style
 - 8160539: Stack frame scanning acquires DerivedPointerTableGC_lock mutex
 - 8222825: ARM32 SIGILL issue on single core CPU (not supported PLDW instruction)
 - 8223346: Update Graal
 - 8222154: upgrade gtest to 1.8.1
 - 8224017: [Graal] gc/z/TestUncommit.java fails with Graal
 - 8224020: AsyncGetCallTrace test should not run on PPC64 or IA64
 - 8224033: os::snprintf should be used in virtualizationSupport.cpp
 - 8223499: Remove two DocuSign root certificates that are expiring
 - 8223910: TestFloatJNIArgs and TestTrichotomyExpressions time out with Graal as JIT
 - 8222422: vmTestbase/nsk/jdi/ClassLoaderReference/definedClasses tests failed with Unexpected Exception: null
 - 8223726: j.l.c.MethodTypeDesc spec should contain precise assertions for one parameter's methods
 - 8224043: Shenandoah: Remove clear_claimed_marks() from start of concurrent_traversal()
 - 8224042: Add private alignDown method to MappedByteBuffer
 - 8224018: test/jdk/java/net/ipv6tests/{Tcp,Udp}Test.java assume IPv4 is available
 - 8223442: java/nio/channels/SocketChannel/AdaptorStreams.java testConcurrentTimedReadWrite3(): failure
 - 8223585: vmTestbase/runtime/pcl/* get SEGV in MetadataOnStackClosure::do_metadata(Metadata*)+0x0
 - 8224031: Cannot parse switch expressions after type cast
 - 8223438: add VirtualizationInformation JFR event
 - 8223572: ~ThreadInVMForHandshake() should call handle_special_runtime_exit_condition()
 - 8224023: Redo the fix for ErrorFile option does not handle pre-existing error files of the same name
 - 8223956: Make SymbolTable and StringTable AllStatic
 - 8222548: Upgrading JDK 13 with the latest available jQuery 3.4.1
 - 8222169: java.lang.AssertionError switch expression in ternary operator - ?
 - 8223770: code_size2 still too small in some compressed oops configurations
 - 8224010: Incorrect string interning
 - Added tag jdk-13+21 for changeset f2f11d7f7f4e
 - 8223980: Shenandoah: Refactor and fix ObjArrayChunkedTask verification
 - 8223968: Add abort type description to RTM statistic counters
 - 8234350: assert(mode == ControlAroundStripMined && (use == sfpt || !use->is_reachable_from_root())) failed: missed a node
 - 8235311: Tag mismatch may alert bad_record_mac
 - 8235513: Change JVM to check for preview features using JVM_CLASSFILE_MAJOR_VERSION
 - 8235174: ZGC: Add support for JFR leak profiler
 - 8234863: Increase default value of MaxInlineLevel
 - 8235141: Specify the required standard socket options for the socket types in the java.net package
 - 8234867: Issue warning for mutually exclusive options on jpackage command line
 - Merge
 - 8235334: Deprecate jcmd GC.class_stats
 - 8235601: redundant code in IOUtils.java
 - 8234654: ZGC: Only disarm NMethods when marking/relocating code roots
 - 8235366: ZGC: Kitchensink.java fails in ZBarrier::should_mark_through
 - 8234871: deprecate SocketFlow (SO_FLOW_SLA) and related APIs for removal
 - 8235383: C1 compilation fails with -XX:+PrintIRDuringConstruction -XX:+Verbose
 - 8233032: assert(in_bb(n)) failed: must be
 - 8190492: Remove SSLv2Hello and SSLv3 from default enabled TLS protocols
 - 8223532: Don't try creating IPv4 sockets in NetworkInterface.c if IPv4 is not supported
 - 8222136: Remove two Comodo root CA certificates that are expiring
 - 8223798: Replace wildcard address with loopback or local host in tests - part 7
 - 8223880: Update sun/net/ftp/FtpURL.java and sun/net/ftp/FtpURLConnectionLeak.java to work with IPv6 addresses
 - 8223716: sun/net/www/http/HttpClient/MultiThreadTest.java should be more resilient to unexpected traffic
 - 8184770: JDWP support for IPv6
 - 8223737: Fix HostsFileNameService for IPv6 literal addresses
 - 8223215: Shenandoah: Support verifying subset of roots
 - 8223885: hs_err and replay file may contain garbage when overwriting existing file
 - 8223911: Disable bad node budget verification until the fix
 - Merge
 - Merge
 - 8223779: Build failure after 8223040 (Add a AsyncGetCallTrace test)
 - 8223730: URLClassLoader.findClass() can throw IndexOutOfBoundsException
 - 8223063: Support CNG RSA keys
 - 8223235: [Graal] compiler/jsr292/NonInlinedCall/InvokeTest.java failed time out
 - 8223637: Fix build breakage after 8223136
 - 8212700: Change the mechanism by which JDK loads the platform-specific AWT Toolkit
 - 8222720: Provide extended VMWare/vSphere virtualization related info in the hs_error file on linux/windows x86_64
 - 8223810: HotSpot compile warnings from VS2017
 - 8223921: Update SocketReadWrite benchmark
 - 8223917: Problemlist compiler/ciReplay/TestServerVM.java
 - 8223767: Shenandoah fails to build on Solaris x86_64
 - 8223657: Remove unused THREAD argument from SymbolTable functions
 - 8215470: Bad EnclosingMethod attribute on classes declared in lambdas
 - 8222362: Upgrade to Freetype 2.10.0
 - 8211826: StringIndexOutOfBoundsException happens via GetStringUTFRegion()
 - 8144125: [macOS] java/awt/event/ComponentEvent/MovedResizedTwiceTest/MovedResizedTwiceTest.java failed automatically
 - 7141393: [macosx] CARemoteLayer code refactoring and unit test
 - Merge
 - 8223237: Replace use of string.equals("") with isEmpty() in java.desktop
 - 8223481: gtest/GTestWrapper.java failed due to "assert(ret == 0) failed: sem_post failed; error='Invalid argument' (errno=EINVAL)"
 - 8223437: Backout JDK-8219974 Restore static callsite resolution for the current class
 - 8223464: Improve version string for Oracle CI builds
 - 8222074: Enhance auto vectorization for x86
 - 8223447: Stabilize gc/shenandoah/TestStringDedupStress test
 - 8223446: Shenandoah breaks alignment with some HumongousThreshold values
 - 8223319: Add copyright footer to specs and man pages
 - Merge
 - 8223463: Replace wildcard address with loopback or local host in tests - part 2
 - 8220037: Inconsistencies of generated timezone files between Windows and Linux
 - 8223044: Add back exception checking in tests
 - 8223457: java.net.ServerSocket protected constructor should throw NPE if impl null
 - 8223449: Unprotected UseCompressedOops block in gc/shenandoah/shenandoahBarrierSetC1_x86.cpp
 - 8223450: Disable Shenandoah C2 barriers verification for x86_32
 - 8223448: Shenandoah disabled barriers blocks omit LRB
 - 8223335: Compare baseline builds on linux are failing
 - 8222819: Remove setting of headless property on MacOS from launcher code
 - 8222678: Improve TLS negotiation
 - 8222738: Shenandoah: assert(is_Proj()) failed when running cometd benchmarks
 - 8223389: Shenandoah optimizations fail with assert(!phase->exceeding_node_budget())
 - 8222670: pathological case of JIT recompilation and code cache bloat
 - 8223308: ZGC: Remove ZGranuleMap::size()
 - 8223422: [Graal] assert(!m->can_be_statically_bound(InstanceKlass::cast(ctxk))) failed: redundant
 - Merge
 - 8216978: Drop support for pre JDK 1.4 SocketImpl implementations
 - 8213232: Unix/X11 setCompositionEnableNative issue
 - 8222519: ButtonDemoScreenshotTest fails randomly with "still state to be reached"
 - 8219202: Use Unsynchronized StringBuilder in sun.net.www.ParseUtil
 - 8222992: Shenandoah: Pre-evacuate all roots
 - 8219138: Miscellaneous changes imported from jsr166 CVS 2019-05
 - 8220248: fix headings in java.util.concurrent
 - 8221892: ThreadPoolExecutor: Thread.isAlive() is not equivalent to not being startable
 - 8221120: CopyOnWriteArrayList.set should always have volatile write semantics
 - 8222930: ConcurrentSkipListMap.clone() shares size variable between original and clone
 - 8223145: Replace wildcard address with loopback or local host in tests - part 1
 - 8223064: Minor cleanups in ResolvedMethodTable
 - 8222986: Add parameter to skip clearing CHeapBitMaps when resizing
 - 8130266: Change the mechanism by which JDK loads the platform-specific GraphicsEnvironment class
 - 8222830: PIT: java/awt/Window/AlwaysOnTop/AutoTestOnTop.java listed twice in ProblemList
 - 8222917: GraphicsEnvironment for Unix still have an unused dependency on Solaris
 - 8213516: jck test api/javax_accessibility/AccessibleState/fields.html fails intermittent
 - 8214579: JFrame does not paint content in XVFB / X11vnc environment
 - 8224096: Add relevant bugid to java/awt/Window/ShapedAndTranslucentWindows/StaticallyShaped.java in ProblemList
 - 6933331: (d3d/ogl) java.lang.IllegalStateException: Buffers have not been created
 - 8223766: Remains of ancient code in AWT initialization
 - 8224152: [macOS] ProblemList tests that leave rubbish on the screen
 - 8223804: [macos] remove obsoleted reference to security framework in launcher code
 - 8223937: PIT: java/awt/Window/ShapedAndTranslucentWindows/StaticallyShaped.java listed twice in ProblemList
 - 8208179: Devanagari not shown with logical fonts on Windows after removal of Lucida Sans from JDK
 - 8222799: java.beans.Introspector uses an obsolete methods cache
 - 8214046: [macosx] Undecorated Frame does not Iconify when set to
 - 8222438: Drop of outdated logging in the com.sun.media.sound package
 - 8218700: infinite loop in HotSpotJVMCIMetaAccessContext.fromClass after OutOfMemoryError
 - 8223332: Update JVMCI
 - 8219013: Update Apache Santuario (XML Signature) to version 2.1.3
 - 8223054: [TESTBUG] Put graalJarsCP before existing classpath in GraalUnitTestLauncher
 - 8222534: VerifyBeforeExit is not honored when System.exit is called
 - 8222955: Optimize String.replace(CharSequence, CharSequence) for common cases
 - 8223412: tier1 build failure after 8222893
 - 8221509: Refactor assert( G1CollectedHeap::used() == recalculate_used() ) with better message
 - 8222893: markOopDesc::print_on() is a bit confused
 - 8222665: Update Graal
 - 8221542: ~15% performance degradation due to less optimized inline decision
 - 8219902: C2: MemNode::can_see_stored_value() ignores casts which carry control dependency
 - 8223171: Redundant nmethod dependencies for effectively final methods
 - 8219483: j.l.c.ClassDesc::nested(String, String...) doesn't throw NPE if any arg is null
 - 8222667: vmTestbase/nsk/jdi/ThreadStartRequest/addThreadFilter/addthreadfilter002/TestDescription.java failed with "event IS NOT a breakpoint"
 - 8219991: New fix of the deadlock in sun.security.ssl.SSLSocketImpl
 - 8223395: PPC64: Improve comments in the JVM signal handler to match ISA text
 - 8223267: Fix incorrect usage of GCTraceTime in g1FullCollector and g1CollectedHeap
 - 8223359: JDK-8221359 breaks TestG1ParallelPhases.java
 - 8223174: Pattern.compile() can throw confusing NegativeArraySizeException
 - 8221359: Eliminate SATBMarkQueueSet::filter_thread_buffers
 - 8223178: Improve FileSystems.newFileSystem example with map factory methods
 - 8223309: test failing due to self-assign-overloaded
 - 8220724: TestBiasedLockRevocationEvents fails while matching revoke events to VMOperation events
 - 8223265: Clarify operational semantics of java.util.Objects.equals()
 - 8223262: [AOT] jaotc crashes with assert(!(((ThreadShadow*)__the_thread__)->has_pending_exception())) failed: Should not allocate with exception pending
 - 8223248: [AIX] Remove old xlC 10 workaround for load acquire
 - 8222500: runtime/8176717/TestInheritFD.java failed with java.nio.file.NoSuchFileException: /tmp/communication7071713601211876892.txt
 - 8219914: Change the environment variable for Java Access Bridge logging to have a directory
 - 8212701: remove sun.desktop property from launcher code
 - Merge
 - Merge
 - 8215580: Remove support for `--no-module-directories`
 - Merge
 - 8222391: javax/net/ssl/compatibility/Compatibility.java should be more flexible
 - 8222751: closed/test/jdk/sun/security/util/DerIndefLenConverter/IndefBerPkcs12.java fail
 - 8222789: Replace the usage of "Sun's Xinerama API" by the "XFree86's Xinerama API" on Solaris
 - 8216008: -Djavax.accessibility.assistive_technologies empty list leads to exception
 - 8212676: AWT SystemColor setting on CDE
 - 8218917: KeyEvent.getModifiers() returns inconsistent values for ALT keys
 - 8222741: jdi/EventQueue/remove/remove004 fails due to VMDisconnectedException
 - 8222786: Shenandoah get_barrier_strength should accept all shapes of (Weak)CAS reference barriers
 - Merge
 - 8192936: RI does not follow the JVMTI RedefineClasses spec that is too strict in the definition
 - 8221271: sun/security/pkcs11/tls/tls12/TestTLS12.java test failed
 - 8222747: [Graal] mx_subprocess files miss testing VM flags
 - 8222753: AAarch64: Add CPU implementer code for Ampere
 - 8222735: Update doc/building.md with current Oracle build platforms and compilers
 - 8222668: Add @since tag to JapaneseEra.REIWA
 - 8222527: HttpClient doesn't send HOST header when tunelling HTTP/1.1 through http proxy
 - 8216137: assert failed: Live node limit exceeded
 - 8223143: Restructure/clean-up for 'loopexit_or_null()'
 - 8223142: Clean-up WS and CB
 - 8223141: Change (count) suffix _ct into _cnt
 - 8223140: Clean-up in 'ok_to_convert()'
 - 8223139: Rename mandatory policy-do routines
 - 8223138: Small clean-up in loop-tree support
 - 8223137: Rename predicate 'do_unroll_only()' to 'is_unroll_only()'
 - 8204203: Many pkcs11 tests failed in Provider initialization, after compiler on Windows changed
 - 8217364: Custom URLStreamHandler for jrt or file protocol can override default handler
 - 8223052: Cleanup: NodeSortRecord
 - 8223254: DataOutputStream/WriteUTF.java fails due to "OutOfMemoryError: Java heap space"
 - 8218875: Add new FileSystems.newFileSystem methods
 - 8220793: (fs) No support for changing modification time of symlink
 - 8223258: Shenandoah: SRP::process_all_roots_slow processes JvmtiExport weak oops twice
 - 8223227: Rename acquire_tag_map() to tag_map_acquire() in jvmtiEnvBase
 - 8222332: PIT: Problemlist tests that times out consistently
 - 8220513: Wrapper Key may get deleted when closing sessions in SunPKCS11 crypto provider
 - 8198505: Remove CollectorPolicy and its subclasses
 - 8222895: StackOverflowError in custom security manager that relies on ClassSpecializer
 - 8223194: runtime/Shutdown/ShutdownTest.java due to "OutOfMemoryError: Java heap too small"
 - Added tag jdk-13+19 for changeset a43d6467317d
 - 8223177: Data race on JvmtiEnvBase::_tag_map in double-checked locking
 - 8146726: Improve AbstractProcessor to issue warnings for repeated information
 - 8220818: Validator does not find missing match for keyref error
 - 8222769: [TESTBUG] TestJFRNetworkEvents should not rely on hostname command
 - 8221267: Document the jdk.net.URLClassPath.showIgnoredClassPathEntries system property
 - 8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
 - 8222744: add support for generating method handles from a variable symbol
 - 8202414: Unsafe write after primitive array creation may result in array length change
 - 8223078: Add microbenchmark for array copying/clearing/resizing
 - 8223190: Test gc/arguments/TestShrinkHeapInSteps.java breaks with change for JDK-8074355
 - 8223184: Shenandoah: Missing roots in SRP::process_all_roots_slow
 - 8074355: make MutexLocker smarter about non-JavaThreads
 - 8213399: DecoderLocker is unused
 - 8223146: [TESTBUG] new test  vmTestbase/nsk/share/ExceptionCheckingJniEnv/exceptionjni001/ fails on Windows
 - 8222821: com/sun/jdi/ExceptionEvents.java failed
 - 8215113: Sampling interval not always correct
 - 8222137: Remove T-Systems root CA certificate
 - 8216577: Add GlobalSign's R6 Root certificate
 - 8222913: Add Jib support for VERSION_EXTRA*
 - 8222749: vmTestbase/nsk/jdi/ThreadStartRequest/addThreadFilter/addthreadfilter001/TestDescription.java failed with "eventSet1.size() != 3 :: 2"
 - 8221639: [i386] expand_exec_shield_cs_limit workaround is undefined code after JDK-8199717
 - 8219807: C2 crash in IfNode::up_one_dom(Node*, bool)
 - 8222852: Reduce String concat combinator tree shapes by folding constants into prependers
 - 8222934: mark new VM option AllowRedefinitionToAddOrDeleteMethods as deprecated
 - 8218152: [javac] fails and exits with no error if a bad annotation processor provided
 - 8222529: sun.jdwp.listenerAddress agent property uses wrong encoding
 - 8221991: Improve the HTML for the inheritance tree for a type
 - 8219403: JVMCIRuntime::adjust_comp_level should be replaced
 - 8218873: Improve JSSE endpoint checking
 - 8220231: Cache HarfBuzz face object for same font's text layout calls
 - Merge
 - 8217013: javadoc generates references to missing file overview-frame.html
 - 8218876: Improve PNG support options
 - 8221518: Normalize normalization
 - 8221915: cleanup ticks related coding in os_perf_aix.cpp [aix]
 - 8222300: Zero build broken after JDK-8222231
 - 8222072: JVMTI GenerateEvents() sends CompiledMethodLoad events to wrong jvmtiEnv
 - Added tag jdk-13+16 for changeset 9d0ae9508d53
 - 8222231: Clean up interfaceSupport.inline.hpp duplicated code
 - 8222224: vmTestbase/nsk/jvmti/SingleStep/singlestep001/TestDescription.java fails
 - 8222035: minimal inference context optimization is forcing resolution with incomplete constraints
 - 8222029: Optimize Math.floorMod
 - 8222264: Windows incremental build is broken with JDK-8217728
 - 8221851: Use of THIS_FILE in hotspot invalidates precompiled header on Linux/GCC
 - 8222259: Shenandoah: Pre-evacuate string-dedup roots in Traversal GC
 - 8221984: ZGC: Clean up ZOop
 - Merge
 - 8222097: ProblemList tests that are failing recurringly and intermittently in PIT
 - Merge
 - 8216039: TLS with BC and RSASSA-PSS breaks ECDHServerKeyExchange
 - 8221853: Data race in compile broker (set_last_compile)
 - 8221430: StringBuffer(CharSequence) constructor truncates when -XX:-CompactStrings specified
 - 8222229: ProblemList compiler/jsr292/InvokerSignatureMismatch.java
 - 8222227: Shenandoah: Fix Traversal GC weak roots handling in final-traversal pause
 - 8221445: FastSysexMessage constructor crashes MIDI receiption thread
 - 8222186: Shenandoah should not uncommit below minimum heap size
 - 8222185: Shenandoah should report "committed" as capacity
 - 8221852: SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE should be selected at runtime, not build time
 - 8221924: get(null) on single-entry unmodifiable Map returns null instead of throwing NPE
 - 8222180: ZGC: ZForwarding::verify() failing when checking for duplicates
 - 8221836: Avoid recalculating String.hash when zero
 - 8219241: Provide basic virtualization related info in the hs_error file on linux/windows x86_64
 - 8221263: [TEST_BUG] RemotePrinterStatusRefresh test is hard to use
 - 8221885: Add intermittent test in the JavaSound to the ProblemList
 - 8221658: aarch64: add necessary predicate for ubfx patterns
 - 8221894: Add comments for docker tests in the test doc
 - 8020637: Permissions.readObject doesn't enforce proper Class to PermissionCollection mappings
 - 8222144: BuiltinClassLoader should create the CodeSource for jrt URLs lazily
 - 8221535: add steal tick related information to hs_error file [linux]
 - 8221584: SIGSEGV in os::PlatformEvent::unpark() in JvmtiRawMonitor::raw_exit while posting method exit event
 - 8218458: [TESTBUG] runtime/NMT/CheckForProperDetailStackTrace.java fails with Expected stack trace missing from output
 - 8218049: Survivor MemoryMXBean used() size granularity is region based
 - 8222105: Add "use_" prefix to G1Policy::adaptive_young_list_length
 - 8218668: Clean up evacuation of optional collection set
 - 8216551: GraalUnitTestLauncher should be executed as '@run driver'
 - 8222130: Shenandoah should verify roots after pre-evacuation
 - 8222133: Add temporary exceptions for root certs that are due to expire soon
 - 8222086: CodeCache::UnloadingScope needs to preserve and restore previous IsUnloadingBehavior
 - 8221730: jcmd process name matching broken
 - 8222027: java/util/logging/LogManager/TestLoggerNames.java generates intermittent ClassCastException
 - 8222129: Shenandoah: Missing CompareAndSwapP/N case in get_barrier_strength()
 - 8222125: Shenandoah: Crash when running with ShenandoahParallelSafepointThreads=1
 - 8222089: [TESTBUG] sun/security/lib/cacerts/VerifyCACerts.java fails due to cert within 90-day expiry window
 - 8221738: ErrorFile option does not handle pre-existing error files of the same name
 - 8223018: Rename G1RemSet::*oops_into_collection_set_do methods
 - 8200545: Improve filter for enqueued deferred cards
 - 8219459: oopDesc::is_valid() is broken
 - 8223638: Replace wildcard address with loopback or local host in tests - part 6
 - 8223822: Add gc IDs in the log of gc verification
 - 8222841: Incorrect static call stub interactions with class unloading
 - 8221478: Disable VerifySharedSpaces by default
 - 8222969: Migrate RuleBasedCollatorTest to JDK Repo
 - 8219023: Investigate syncing JVMTI spec version with JDK version
 - 8223597: jdk/nio/zipfs/ZipFSTester.java RuntimeException: CHECK_FAILED! (getAttribute.crc <entries20> failed 6af4413c vs 0 ...)
 - 8222480: Implementation: JEP 351: ZGC: Uncommit Unused Memory
 - 8223762: Shenandoah: overflows in calculations involving heap capacity
 - 8223759: Shenandoah should allow arbitrarily low initial heap size
 - 8223685: used bundled zlib on AIX by default
 - 8223574: add more thread-related system settings info to hs_error file on AIX
 - 8221907: make reconfigure breaks when configured with relative paths
 - 8222111: exeCallerAccessTest.c fails to build: control reaches end of non-void function
 - 8221995: AARCH64: problems with CAS instructions encoding
 - 8221880: Better customization for Windows RC properties FileDescription and ProductName
 - 8221529: [TESTBUG] Docker tests use old/deprecated image on AArch64
 - 8222032: x86_32 fails with "wrong size of mach node" on AVX-512 machine
 - 8221917: serviceability/sa/TestPrintMdo.java fails on 32-bit platforms
 - 8222082: Build of test/jdk/java/lang/reflect/exeCallerAccessTest/exeCallerAccessTest.c still failing on Windows
 - 8222078: test/jdk/java/lang/reflect/exeCallerAccessTest/exeCallerAccessTest.c build fails after 8221530
 - 8221530: Caller sensitive methods not handling caller = null when invoked by JNI code with no java frames on stack
 - 8220282: Add MethodHandle tests on accessing final fields
 - 8221871: javadoc should not set role=region on <section> elements
 - 8221882: Use fiber-friendly java.util.concurrent.locks in JSSE
 - 8221997: fix headings in jdk.javadoc
 - 8221597: A typo in the Java API doc for File.getUsableSpace()
 - 8219993: AArch64: Compiled CI stubs are unsafely modified
 - 8221477: Inject os/cpu-specific constants into Unsafe from JVM
 - 8203364: Some serviceability/sa/ tests intermittently fail with java.io.IOException: LingeredApp terminated with non-zero exit code 3
 - 8220349: The fix done for JDK-8214253 have caused issues in JTree behaviour
 - 6684386: ElementIterator javadoc bug
 - 8221345: Better Poly1305 support
 - 8221661: javax.swing.text.View.getPreferredSpan(int axis)
 - Merge
 - 8178335: fake pass: jdk/internal/ref/Cleaner/ExitOnThrow.java
 - 8220792: Performance bottleneck in JavacFileManager.list()
 - 8221437: assert(java_lang_invoke_ResolvedMethodName::vmtarget(resolved_method()) == m()) failed: Should not change after link resolution
 - Merge
 - 8221731: Fix doclint handling of accessibility heading in java.desktop
 - 8221801: Update src/java.base/share/legal/public_suffix.md
 - 8157404: Unable to read certain PKCS12 keystores from SequenceInputStream
 - 8221763: Build fails when using --with-jvm-features=-g1gc,-jfr,-shenandoahgc
 - 8168261: Use server cipher suites preference by default
 - 8218418: (fs) Files.createSymbolicLink should use SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE (win)
 - 8221517: G1: Reserved page size for heap can be wrong
 - 8212627: [TESTBUG] runtime/CreateMirror/ArraysNewInstanceBug.java timed out
 - 8220671: Initialization race for non-JavaThread PtrQueues
 - 8221703: Rmic build for java.management.api has bad incremental behavior
 - 8221558: Remove obsolete uses of OopStorage::ParState<'false, false> _par_state
 - 8221149: os::malloc checks MallocCatchPtr outside of ifdef ASSERT block
 - 8221146: ZGC: Reports too much relocated
 - 8220610: Make CollectedHeap nmethod functions pure virtual
 - 8174268: Declare a public field in JapaneseEra for the era starting May 2019
 - 8205432: Replace the placeholder Japanese era name
 - 8221366: Search box tries to search for "Search"
 - 8219733: Restore javadoc header styles
 - 8221750: Shenandoah: Enable ThreadLocalHandshake by default
 - 8221183: Avoid code cache walk in MetadataOnStackMark
 - 8221694: jstatLineCounts1 needs to be NaN resilient
 - 8221735: Shenandoah fails ctw/modules/jdk_management_agent.java with Traversal
 - 8221726: Multiple build failures after JDK-8221698 (Remove redundant includes from popular header files)
 - 8221725: AArch64 build failures after JDK-8221408 (Windows 32bit build build errors/warnings in hotspot)
 - 8215599: Remove support for javadoc "frames" mode
 - 8220495: Update GIFlib library to the 5.1.8
 - 8221436: Incorrect check of package in Line.Info.toString()
 - 8220320: Remove unused old code in GraphicsEnvironment on unix
 - 8215105: java/awt/Robot/HiDPIScreenCapture/ScreenCaptureTest.java: Wrong Pixel Color
 - 8220707: [TESTBUG] serviceability/sa/TestHeapDumpForLargeArray.java fails with jtreg -vmoption:-Xmx < 8g
 - 8221610: Resurrect (legacy) JRE bundle target
 - 8221698: Remove redundant includes from popular header files
 - 8221257: Improve serial number generation mechanism for keytool -gencert
 - 8221596: test/hotspot/jtreg/runtime/containers/docker/TestCPUSets.java failed with FileAlreadyExistsException
 - 8212328: Exceptional throw cases
 - 8221629: Shenandoah: Cleanup class unloading logic
 - 8221643: Tighten up assert(_keep_alive >= 0) in CLD::inc_keep_alive
 - 8220254: fix headings in java.xml
 - 8221539: [metaspace] Improve MetaspaceObj::is_metaspace_obj() and friends
 - 8221833: Readability check in Symbol::is_valid not performed for some addresses
 - 8221918: runtime/SharedArchiveFile/serviceability/ReplaceCriticalClasses.java fails: Shared archive not found
 - 8218547: Simplify JLI_Open on Windows in native code (libjli)
 - 8219918: ProblemList hotspot tests failing in SAP testing
 - 8221470: Print methods in exception messages in java-like Syntax
 - 8221992: Fix old method replacement in ResolvedMethodTable
 - 8163326: Update the default enabled cipher suites preference
 - 8221921: Implement size() / isEmpty() in immutable collections
 - 8221981: Simplify Map/List/Set.of() implementation
 - 8221980: Simplify Optional implementation
 - 8221996: Bootcycle build broken
 - 8221848: Shenandoah: ArrayCopy post-barrier improvements
 - 8221710: [TESTBUG] more configurable parameters for docker testing
 - 8221766: Load-reference barriers for Shenandoah
 - 8217728: Speed up incremental rerun of "make hotspot"
 - 8219861: Add new keytool -showinfo -tls command for displaying TLS configuration information
 - 8221244: Unexpected behavior of PropertyDescription.getReadMethod for boolean properties
 - 8212904: JTextArea line wrapping incorrect when using UI scale
 - 8217707: JNICALL declaration breaks Splash screen functions
 - 8221412: lookupPrintServices() does not always update the list of Windows remote printers
 - 8221411: NullPointerException in RasterPrinterJob without PrinterResolution
 - 8217735: awt_image_GifImageDecoder_parseImage() "interlace" param has the wrong type
 - 8220517: Enhanced GIF support
 - 8220250: fix headings in java.desktop
 - 8216971: [macosx swing] For JCheckBoxMenuItem actionPerformed() is called twice, when apple.laf.useScreenMenuBar=true and modifier is InputEvent.META_DOWN_MASK
 - 8221405: Fix Windows 32bit awt build
 - 8221480: jcmd VM.metaspace shall print limits in basic mode
 - 8221351: Crash in KlassFactory::check_shared_class_file_load_hook
 - 8221118: Avoid eagerly creating JCDiagnostic for CompletionFailures
 - 8221435: Shenandoah should not mark through weak roots
 - 8221687: Deprecated j.u.jar.Attributes.Name attributes accidentally set to null
 - 8221688: Quarantine Shenandoah string dedup tests
 - 8221408: Windows 32bit build build errors/warnings in hotspot
 - 8221621: FindTests.gmk cannot handle "=" in TEST.groups comments
 - 8220016: Clean up redundant RSA services in the SunJSSE provider
 - 8220632: Suggest recompiling with a larger value of -Xmaxerrs/-Xmaxwarns if diagnostics were suppressed
 - 8221153: ZGC: Heap iteration and verification pollutes GC statistics
 - 8221540: ZGC: Reduce width of zForwardingEntry::from_index field
 - 8221394: Clean up ConcurrentGCThread
 - 8221341: Update Graal
 - 8157372: C2: Node::cmp() should return bool
 - 8205934: Define jdk -source/-target version in version-numbers file
 - 8220530: Build compare script does not compare the contents of the test image
 - 8221395: HttpClient leaving connections in CLOSE_WAIT state until Java process ends
 - 8220351: Cross-modifying code
 - 8221325: Add information about swap space to print_memory_info() on MacOS
 - 8221872: Remove uses of ClassLoaderWeakHandle typedef in protection domain table
 - Added tag jdk-13+15 for changeset f855ec13aa25
 - 8217610: TLSv1.3 fail with ClassException when EC keys are stored in PKCS11
 - 8218483: Crash in "assert(_daemon_threads_count->get_value() > daemon_count) failed: thread count mismatch 5 : 5"
 - 8221764: Reduce make Init.gmk logging overhead
 - 8220664: Simplify ShenandoahUpdateHeapRefsClosure
 - 8216539: tools/jar/modularJar/Basic.java times out
 - 8221701: Archive constant BaseLocales
 - 8221482: Initialize VMRegImpl::regName[] earlier to prevent assert during PrintStubCode
 - 8220786: Create new switch to redirect error reporting output to stdout or stderr
 - 8221413: javac does not recognize variable assigned in switch expression as DA
 - 8221398: Move test NoClassDefFoundMsg.java to subdir exceptionMsgs/
 - 8221532: Incorrect copyright header in FileSystemSupport_md.c
 - 8218727: vmTestbase/nsk/jvmti/scenarios/events/EM04/em04t001/TestDescription.java crash in native library
 - Added tag jdk-13+14 for changeset 46cf212cdcca
 - 8221568: DataOutputStream/WriteUTF.java fails due to "OutOfMemoryError: Java heap space"
 - 8221533: Incorrect copyright header in DurationDayTimeImpl.java, DurationYearMonthImpl.java and XMLStreamException.java
 - 8220575: Replace hardcoded 127.0.0.1 in URLs with new URI builder
 - 8221531: Incorrect copyright header in src/java.base/windows/native/libnio/ch/FileChannelImpl.c
 - 8220528: [AIX] Fix basic Xinerama and Xrender functionality
 - 8221456: nmethod::make_unloaded() clears _method member too early
 - 8221527: [TESTBUG] DockerBasicTest.java contains hard-coded reference to JDK 10
 - 8219196: DataOutputStream.writeUTF may throw unexpected exceptions
 - 8059357: ClassVerifier redundantly checks constant pool entries multiple times
 - 8219612: compiler.codecache.stress.Helper.TestCaseImpl can't be defined in different runtime package as its nest host
 - 8221524: java/util/Base64/TestEncodingDecodingLength.java test should be disabled on 32-bit platforms
 - 8221401: java/math/BigInteger/LargeValueExceptions.java test should be disabled on 32-bit platforms
 - 8221400: java/lang/String/StringRepeat.java test requests too much heap
 - 8220198: Lots of com/sun/crypto/provider/Cipher tests fail on x86_32 due to missing SHA512 stubs
 - 8221537: ZGC: Fix incorrect comment in zNMethod table entry layout
 - 8221392: Reduce ConcurrentGCThreads spinning during start up
 - 8221396: Clean up serviceability/sa/TestUniverse.java
 - 8221479: Fix JFR profiling on s390
 - 8220687: Add StandardJavaFileManager.getJavaFileObjectsFromPaths overload
 - 8217347: [TESTBUG] runtime/appcds/jvmti/InstrumentationTest.java timed out
 - 8220633: Optimize CacheFSInfo
 - 8216558: Lookup.unreflectSetter(Field) fails to throw IllegalAccessException for final fields
 - 8221513: Add vmTestbase/nsk/jdb/eval/eval001/eval001.java to ProblemList.txt
 - 8221342: [TESTBUG] Generate Dockerfile for docker testing
 - 8204552: NMT: Separate thread stack tracking from virtual memory tracking
 - 8221350: more monitor logging updates from Async Monitor Deflation project
 - 8221483: TestOopCmp.java fails due to "Multiple garbage collectors selected"
 - 8219446: Specify behaviour of timeout accepting methods of Socket and ServerSocket if timeout is negative
 - 8221414: Bump required boot jdk version to 12
 - 8221407: Windows 32bit build error in libsunmscapi/security.cpp
 - 8221406: Windows 32bit build error in NetworkInterface_winXP.c
 - 8221473: Configuration::reads can use Set.copyOf
 - 8177960: Deprecate the Swing Motif Look and Feel and document it as unsupported on macOS
 - Merge
 - Merge
 - 8200286: (testbug) MOptionTest test fails with java.lang.AssertionError: Classfiles too old!
 - 8221304: Problem list java/awt/FontMetrics/MaxAdvanceIsMax.java
 - 8220451: jdi/EventQueue/remove/remove004 failed due to "ERROR: thread2 is not alive"
 - 8221175: Fix bad function case for controlled JVM crash on PPC64 big-endian
 - 8220794: PPC64: Fix signal handler for SIGSEGV on branch to illegal address
 - 8221472: Fix HandshakeSuspendExitTest
 - 8217690: Update public suffix version
 - 8220570: Additonal trace when native thread creation fails
 - 8218128: vmTestbase/nsk/jvmti/ResourceExhausted/resexhausted003 and 004 use wrong path to test classes
 - 8220774: Add HandshakeALot diag option
 - 8203026: java.rmi.NoSuchObjectException: no such object in table
 - 8221083: [ppc64] Wrong oop compare in C1-generated code
 - Merge
 - 8221098: Run java/net/URL/HandlerLoop.java in othervm mode
 - 8211100: hotspot C1 issue with comparing long numbers on x86 32-bit
 - 8153508: ContentHandler API contains link to private contentPathProp
 - 8219958: Automatically load taglets from a jar file
 - 8147502: Digest is incorrectly truncated for ECDSA signatures when the bit length of n is less than the field size
 - 8220744: Move RedefineTests to from runtime to serviceability
 - 8218975: Bug in macOSX kernel's pthread support
 - Merge
 - 8220690: ATTRIBUTE_ALIGNED requires GNU extensions enabled
 - 8217766: Container Support doesn't work for some Join Controllers combinations
 - 8212528: Wrong cgroup subsystem being used for some CPU Container Metrics
 - 8219562: Line of code in osContainer_linux.cpp L102 appears unreachable
 - 8220613: java/util/Arrays/TimSortStackSize2.java times out with fastdebug build
 - 8220663: Incorrect handling of IPv6 addresses in Socket(Proxy.HTTP)
 - 8218914: Support fonts installed per-user on Windows 10
 - 8220355: Improve assertion texts and exception messages in eventHandlerVMInit
 - 8220781: linux-s390 : os::get_summary_cpu_info gives bad output
 - 8170705: sun/net/www/protocol/http/StackTraceTest.java fails intermittently with Invalid Http response
 - 8220812: gc/shenandoah/options/TestLoopMiningArguments.java fails if default GC is serial/parallel/cms
 - 8220410: sun/security/tools/jarsigner/warnings/NoTimestampTest.java failed with missing expected output
 - 8218723: Use SunJCE Mac in SecretKeyFactory PBKDF2 implementation
 - 8220693: jdk/javadoc/doclet/MetaTag/MetaTag.java with unexpected date
 - 8220737: Jib based 32 bit windows builds fail
 - 8220780: ShenandoahBS::AccessBarrier::oop_store_in_heap ignores AS_NO_KEEPALIVE
 - 8220609: Cleanups in ScavengableNMethods
 - 8220606: Move ScavengableNMethods unlinking to unregister_nmethod
 - 7106851: Test should not use System.exit
 - 8220714: C2 Compilation failure when accessing off-heap memory using Unsafe
 - 8221278: Shenandoah should not enqueue string dedup candidates during root scan
 - 8221273: put sun/security/pkcs11/tls/tls12/TestTLS12.java on ProblemList.txt
 - 8221270: Duplicated synchronized keywords in SSLSocketImpl
 - 8218401: WRONG_PHASE: vmTestbase/nsk/jvmti test crash
 - 8170494: JNI exception pending in PlainDatagramSocketImpl.c
 - 8211941: Enable checking/ignoring of non-conforming Class-Path entries
 - 8220674: [TESTBUG] MetricsMemoryTester failcount test in docker container only works with debug JVMs
 - 8221259: New tests for java.net.Socket to exercise long standing behavior
 - 8221172: SunEC specific test is not limited to SunEC
 - 8221096: Description of -XX:+PrintFlagsRanges is incorrect
 - 8220753: Re-introduce the test case for TLS 1.2 algorithms in SunPKCS11 crypto provider
 - 8220784: hsdis cannot be built with MinGW64
 - 8220658: Improve the readability of container information in the error log
 - 8172695: (scanner) java/util/Scanner/ScanTest.java fails
 - 8221208: Backout JDK-8218446
 - 8221180: Deprecate AllowJNIEnvProxy
 - Added tag jdk-13+13 for changeset 83cace4142c8
 - 8220249: fix headings in java.compiler
 - 8218446: SuspendAtExit hangs
 - 8220389: Update Graal
 - Merge
 - Added tag jdk-12-ga for changeset b67884871b5f
 - 8220602: Shenandoah-SA: Enable best-effort implementation of heap walk
 - 8221875: Unquarantine Shenandoah string dedup tests
 - 8221870: use driver to run CtwRunner in applications/ctw tests
 - 8221102: Allow GC threads to participate in threads claiming protocol
 - 8221782: [Graal] Module jdk.internal.vm.compiler.management has not been granted accessClassInPackage.jdk.vm.ci.services
 - 8221751: Shenandoah: Improve SATB enqueueing
 - 8221762: Improve Main.gmk/FindTests.gmk bootstrap time
 - 8221824: Build failure with MSVS 2013 after JDK-8218418
 - 8214796: Create a jlink plugin for stripping debug info symbols from native libraries
 - 8221696: MappedByteBuffer.force method to specify range
 - 8223632: Replace wildcard address with loopback or local host in tests - part 5
 - 8219060: -linksource broken with modules
 - 8222015: Small VM.metaspace improvements
 - 8223667: ASAN build broken
 - 8223040: Add a AsyncGetCallTrace test
 - 8223654: Clean up @jls references in com.sun.source
 - 8221253: TLSv1.3 may generate TLSInnerPlainText longer than 2^14+1 bytes
 - 8221569: JFR tool produces incorrect output when both --categories and --events are specified
 - 8222533: jtreg test jdk/internal/platform/cgroup/TestCgroupMetrics.java fails on SLES12.3 linux ppc64le machine
 - 8221340: [TESTBUG] TestCgroupMetrics.java fails after fix for JDK-8219562
 - 8223531: [Graal] assert(type() == T_INT) failed: type check
 - 8223652: Rename IPSupport.skipIfCurrentConfigurationIsInvalid() to IPSupport.throwSkippedExceptionIfNonOperational()
 - 8223186: HotSpot compile warnings from GCC 9
 - 8223465: Replace wildcard address with loopback or local host in tests - part 3
 - Merge
 - 8223626: move print() functions to cpp files
 - 8223675: arm32 build failure after 8223136 (Move compressed oops functions to CompressedOops class)
 - 8223676: Minimal VM build failure after 8223136 (Move compressed oops functions to CompressedOops class)
 - 8223624: Cleanup includes of universe.hpp
 - 8223623: Move oopFactory function definitions out of oopFactory.hpp
 - 8223622: Move Universe usage out of memAllocator.hpp
 - 8223621: Move Universe usage out of oopRecorder.hpp
 - 8223620: Move IsGCActiveMark implementation out of header
 - 8223619: Move VerifyOption out of Universe
 - 8223136: Move compressed oops functions to CompressedOops class
 - 8223617: code_size2 needs adjustments
 - 8223555: Cleanups in cacerts tests
 - 8200400: Restrict Sasl mechanisms
 - 8223537: testlibrary_tests/ctw/ClassesListTest.java fails with Agent timeout frequently
 - 8222292: runtime/exceptionMsgs/ArrayIndexOutOfBoundsException/ArrayIndexOutOfBoundsExceptionTest.java timeout but test passed
 - 8223639: [JVMCI] jvmciCompiler.cpp needs to include "oops/objArrayOop.inline.hpp""
 - 8223651: Build fails with --with-jvm-features=-jfr and --disable-precompiled-headers
 - 8223599: minimal build fails after JDK-8185525
 - 8191808: Configurable read timeout for CRLs
 - 8189208: Cleanup ancient argument processing code
 - Merge
 - 8223645: AArch64 build broken by fix for 8223136
 - 8222991: Xerces 2.12.0: Validation
 - 8223454: Reduce String concatenation shapes by folding initialLengthCoder into last mixer
 - 8223627: jdk-13+20 bundle name contains null instead of ea
 - 8222251: preflow visitor is not visiting lambda expressions
 - 8223573: Replace wildcard address with loopback or local host in tests - part 4
 - 8042215: javax/management/remote/mandatory/connection/ReconnectTest.java NoSuchObjectException no such object in table
 - 8221759: Crash when completing \"java.io.File.path\"
 - 8223427: [TESTBUG] Disable JTReg Shenandoah tests when Graal is enabled
 - 8223441: HeapMonitorStatArrayCorrectnessTest fails due to sampling determinism
 - Added tag jdk-13+20 for changeset 6ccc7cd7931e
 - 8222987: sun/security/tools/keytool/PSS.java times out on Solaris-SPARC
 - 8223380: [Graal] compiler/c2/Test8062950.java failed with time out
 - 8223539: compiler/graalunit/HotspotTest.java hotspot.test.CheckGraalIntrinsics AssertionError: found plugins for intrinsics
 - 8223589: Build failures after JDK-8223534 (add back fixed test_markOop.cpp)
 - 8223307: enable the Stack Execution Disable flag for JDK binaries on AIX
 - 8220673: Add test library support for determining platform IP support
 - 8221432: Upgrade CLDR to Version 35.1
 - 8223583: Build failure after JDK-8223567 (Rename ShenandoahBrooksPointer to ShenandoahForwarding)
 - 8223414: ProblemList java/lang/ref/ReachabilityFenceTest.java when running in Graal as JIT mode
 - 8223567: Rename ShenandoahBrooksPointer to ShenandoahForwarding
 - 8223534: add back fixed test_markOop.cpp
 - 8185525: Add JFR event for DictionarySizes
 - 8222926: Shenandoah build fails with --with-jvm-features=-compiler1
 - 8222949: add condy support to javac's pool API
 - 8217846: [Graal] vmTestbase/nsk/jdi/VirtualMachine/instanceCounts/instancecounts003/instancecounts003.java crash
 - 8223397: gc+promotion log lines are missing the GC id
 - 8223445: compiler/intrinsics/mathexact/LongMulOverflowTest.java java timeout
 - 8223570: Shenandoah needs to acquire lock before CLDG::clear_claimed_marks
 - 8223416: Exclude javax/management/monitor/DerivedGaugeMonitorTest.java until JDK-8042211 is fixed
 - 8223391: Unsynchronized iteration of ClassLoaderDataGraph
 - 8223244: Fix usage of ARRAYCOPY_DISJOINT decorator
 - 8223353: (ch) Change channel close implementation to not wait for I/O threads
 - 8220579: [Containers] SubSystem.java out of sync with osContainer_linux.cpp
 - 8220601: ZGC: Delete ZNMethodTableEntry arrays using ZSafeDelete
 - 8220600: ZGC: Delete ZPages using ZSafeDelete
 - 8220599: ZGC: Introduce ZSafeDelete
 - 8220597: ZGC: Convert ZForwarding to use ZAttachedArray
 - 8220596: ZGC: Convert ZNMethodData to use ZAttachedArray
 - 8220595: ZGC: Introduce ZAttachedArray
 - 8220594: ZGC: Remove superfluous ZPage::is_active()
 - 8220593: ZGC: Remove superfluous ZPage::is_detached()
 - 8220592: ZGC: Move destruction of detached ZPages into ZPageAllocator
 - 8220591: ZGC: Don't delay reclaimation of ZVirtualMemory
 - 8220590: ZGC: Remove ZPages from ZPageTable when freed
 - 8220589: ZGC: Remove superfluous ZPageTableEntry
 - 8220588: ZGC: Convert ZRelocationSet to hold ZForwardings instead of ZPages
 - 8220587: ZGC: Break out forwarding information from ZPage
 - 8220586: ZGC: Move relocation logic from ZPage to ZRelocate
 - 8220741: ZGC: Move CPU agnostic files from linux_x86 to linux
 - 8220569: ZGC: Rename and rework ZUnmapBadViews to ZVerifyViews
 - 8220719: Allow other named NetPermissions to be used
 - 8220684: Process.waitFor(long, TimeUnit) can return false for a process that exited within the timeout
 - 6307456: UnixFileSystem_md.c use of chmod() and access() should handle EINTR signal appropriately (unix)
 - 8220493: Prepare Socket/ServerSocket for alternative platform SocketImpl
 - 8220738: (sc) Move ServerSocketChannelImpl remaining native method to Net
 - 8220555: JFR tool shows potentially misleading message when it cannot access a file
 - 8220745: Fix problemlist entry to refer to 8220613
 - 8219876: (bf) Improve IndexOutOfBoundsException messages in $Type$Buffer classes
 - 8220512: Deoptimize redefinition functions that have dirty ICs
 - 8220704: ZGC: gc tests complain Java heap too small
 - 8220093: Change to GCC 8.2 for building on Linux at Oracle
 - 8213912: Semantic typo in HttpExchange.java
 - 8179549: Typo in network properties documentation
 - 8220712: [TESTBUG] gc/shenandoah/compiler/TestMaybeNullUnsafeAccess should run with Shenandoah enabled
 - 8220678: unquarantine nsk/jdi/ThreadReference/setEnabled/setenabled003
 - 8220611: compiler/classUnloading/methodUnloading/TestOverloadCompileQueues.java timeout
 - 8219139: move hotspot tests from test/jdk/vm
 - 8218812: vmTestbase/nsk/jvmti/GetAllThreads/allthr001/TestDescription.java failed
 - 8220689: problem list RandomCommandsTest in graal runs
 - 8220249: fix headings in java.compiler
 - 8219628: [TESTBUG] javadoc/doclet/InheritDocForUserTags fails with -othervm
 - 8219691: method summary table head should be enclosed in <thead>
 - 8216353: Use utility APIs introduced in org/netbeans/jemmy/util/LookAndFeel class in client sanity test cases
 - 8219552: bump jtreg requiredVersion to b14 in test/jdk/sanity/client/
 - 8217338: [Containers] Improve systemd slice memory limit support
 - 8222550: runtime/MemberName/MemberNameLeak.java times out
 - 8222713: Add OutputAnalyzer(Path) constructor
 - 8222558: Rework ResolvedMethodTable verification
 - 8222379: JFR TestClassLoadEvent.java failed due to EXCEPTION_ACCESS_VIOLATION
 - 8222280: Provide virtualization related info in the hs_error file on AIX
 - Added tag jdk-13+17 for changeset 93b702d2a0cb
 - 8222444: Add a suggestion for non-US locale in the test doc
 - 8220477: Channels.newWriter() does not close if underlying channel throws an IOException
 - 8222289: Overhaul logic for reading/writing constant pool entries
 - 8219718: ZGC: Make nmethod entry barriers and nmethod::is_unloading use ZNMethodDataOops
 - 8222491: jcmd can fail converting UTF8 output to strings
 - 8222627: Remove sneaky token 'Name' in jdk-version.m4
 - 8218468: Load barrier slow path node should be MachTypeNode
 - 8222327: java_lang_Thread _thread_status_offset, remove pre 1.5 code paths
 - 8218147: make_walkable asserts on multiple calls
 - 8220382: Cleanup doclet instantiation
 - 8222418: compiler/arguments/TestScavengeRootsInCode.java times out
 - 8222417: compiler/loopopts/TestOverunrolling.java times out
 - Merge
 - 8216326: SSLSocket stream close() does not close the associated socket
 - 8222484: Specialize generation of simple String concatenation expressions
 - 8222415: Xerces 2.12.0: Parsing Configuration
 - 8222510: Small cleanup for JDK launcher's make file
 - 8222528: Fix javadoc headers in Nashorn sources
 - 8222522: Add configure options for Mac Bundle creation
 - 8220743: [TESTBUG] Review Runtime tests recently migrated from JDK subdirs
 - 8222395: Refactor the abstract classes of package and module index writer
 - 8222334: java -Xss0 triggers StackOverflowError
 - 8222271: [s390] optimize register usage in C2 instruction forms for clearing arrays
 - Merge
 - 8222387: Out-of-bounds access to CPU _family_id_xxx array
 - 8222275: sun/security/tools/keytool/Serial64.java: assertTrue: expected true, was false
 - 8208066: compiler/graalunit/JttThreadsTest.java failed with org.junit.runners.model.TestTimedOutException: test timed out after 20 seconds
 - 8222419: Shenandoah: Remove unused _par_state_string in ShenandoahRootProcessor
 - 8222299: [TESTBUG] move hotspot container tests to hotspot/containers
 - 8222403: Shenandoah: Remove ShenandoahAlwaysTrueClosure, use AlwaysTrueClosure instead
 - 8222297: IRT_ENTRY/IRT_LEAF etc are the same as JRT
 - 8222188: Shenandoah: Adjust Shenandoah work gang types
 - 8180573: Refactor sun/security/tools shell tests to plain java tests
 - 8222151: refactoring: enhancements to java.lang.Class::methodToString and java.lang.Class::getTypeName
 - 8222090: Add Hygon Dhyana processor support
 - 8217405: rmic should reject class files with preview features enabled
 - 8222034: Thread-SMR functions should be updated to remove work around
 - 8221857: Collect code coverage for a subset of code
 - 8222333: fastdebug build broken after JDK-8221393 (phase_mapping[] doesn't match enum Phase in WeakProcessorPhases)
 - 8217047: Provide a way to inject missing parameter names
 - 8221979: Cleanups for building Windows resources
 - 8215407: javac should reject class files with bad EnclosingMethod attributes
 - 8221393: ResolvedMethodTable too small for StackWalking applications
 - 8221913: Add GC.selected() jtreg-ext function
 - 8163363: AArch64: Stack size in tools/launcher/Settings.java needs to be adjusted
 - 8222430: Add tests for ElementKind predicates
 - 8222378: Provide mechanism to query preview feature status for annotation processors
 - 8222501: [TESTBUG] Docker support is always set to true in jtreg-ext/requires/VMProps.java
 - 8221711: [TESTBUG] create more tests for JFR in container environment
 - 8222425: Shenandoah: Move commonly used closures to separate files
 - 8222490: Shenandoah: Remove unused _par_state_string in ShenandoahRootEvacuator
 - 8222397: x86_32 tests with UseSHA1Intrinsics SEGV due to garbled registers
 - 8222410: java/nio/file/attribute/BasicFileAttributeView/UnixSocketFile hangs when "nc" does not accept "-U"
 - 8221397: Support implementation-defined Map Modes
 - 8221644: jquery directory should be renamed
 - 8220625: tools/javac/classreader/8171132/BadConstantValue.java failed with "did not see expected error"
 - 8220388: Increase -inlinehint-threshold for Clang to avoid G1 pause time regression
 - 8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
 - 8036608: Key.getAlgorithm link to standard algorithm names needs to be updated
 - 8218280: LineNumberReader throws "Mark invalid" exception if CRLF straddles buffer
 - 8223020: aarch64: expand minI_rReg and maxI_rReg patterns into separate instructions
 - 8223015: Cleanups for zipfs tests
 - 8221592: C2 compilation failed with assert(!q->is_MergeMem())
 - 8223003: SunMSCAPI keys are not cleaned up
 - 8220813: update hotspot tier1_gc tests depending on GC to use @requires vm.gc.X
 - 8219487: j.l.c.ClassDesc spec should contain precise assertions for one parameter's methods
 - 8222980: Upgrade IANA Language Subtag Registry to Version 2019-04-03
 - 8221988: add possibility to build with Visual Studio 2019
 - 8129315: java/net/Socket/LingerTest.java and java/net/Socket/ShutdownBoth.java timeout intermittently
 - 8223026: [BACKOUT] Typo in test/hotspot/jtreg/TEST.groups is causing test harness failures
 - 8223016: ZGC: Fix misaligned statistics printout
 - 8222637: Obsolete NeedsDeoptSuspend
 - 8222440: (zipfs) JarFileSystem does not correctly handle versioned entries if no root entry is present
 - 8222518: Remove unnecessary caching of Parker object in java.lang.Thread
 - 8222743: Xerces 2.12.0: DOM Implementation
 - 8222562: Don't set IPV6_V6ONLY when IPv4 is not available
 - 8222970: Update ProblemList for vmTestbase/nsk/jdb/eval/eval001/eval001.java
 - 8222888: [TESTBUG] docker/TestJFREvents.java fails due to "RuntimeException: JAVA_MAIN_CLASS_ is not defined"
 - 8222977: Fix shenandoah broken with JDK-8222811
 - 8222811: Consolidate MutexLockerEx and MutexLocker
 - 8139965: Hang seen when using com.sun.jndi.ldap.search.replyQueueSize
 - 8220795: Rework naked_short_nanosleep on Windows to improve time-to-safepoint
 - 8222774: (ch) Replace uses of stateLock and blockingLock with j.u.c. locks
 - 8220497: Improve Javadoc search feature and add test coverage
 - 8222469: ZGC: Generalize ZPageCache::flush()
 - 8221786: ZGC: Increase max heap size to 16TB
 - 8222462: Introduce CollectedHeap::unused()
 - 8222664: runtime/appcds/sharedStrings/SharedStringsStress.java assert GC active during NoGCVerifier
 - 8222935: Fix ExceptionCheckingJniEnv system
 - Added tag jdk-13+18 for changeset bebb82ef3434
 - 8222952: Typo in test/hotspot/jtreg/TEST.groups is causing test harness failures
 - 8222805: sun/security/pkcs11/tls/tls12/TestTLS12.java fails with Unsupported signature algorithm: rsa_pss_rsae_sha256
 - 8222669: Create and use new html.Entity class
 - 8222295: more baseline cleanups from Async Monitor Deflation project
 - 8222532: (zipfs) Performance regression when writing ZipFileSystem entries in parallel
 - 8221685: -XX:BytecodeVerificationRemote and -XX:BytecodeVerificationLocal should be diagnostic options
 - 8222838: Shenandoah: SEGV on accessing cset bitmap for NULL ptr
 - 8222843: Print Shenandoah cset map addresses in hs_err
 - 8222785: aarch64: add necessary masking for immediate shift counts
 - 8219566: JFR did not collect call stacks when MaxJavaStackTraceDepth is set to zero
 - 8222817: Refactor printing processor to use streams
 - 8221598: Update Graal
 - 8218994: Consolidate indy and condy JVM information within a BootstrapInfo data structure
 - 8213501: Deploy ExceptionJniWrapper for a few tests
 - 8222526: Use of no longer existing jquery directory in script.js
 - 8215017: Improve String::equals warmup characteristics
 - 8219998: Eliminate inherently singleton lists
 - 8222502: Replace 19,20 case alternatives with JVM_CONSTANT_Module/Package names
 - 8219775: Certificate validation improvements
 - 8218854: FontMetrics.getMaxAdvance may be less than the maximum FontMetrics.charWidth
 - 8219504: Test for JDK-8211435 can be run on all platforms
 - 8215396: JTabbedPane preferred size calculation is wrong for SCROLL_TAB_LAYOUT
 - 8218674: HTML Tooltip with "img=src" on component doesn't show
 - 8214112: The whole text in target JPasswordField image are not selected
 - 8214253: Tooltip is transparent rather than having a black background
 - 8061381: [macosx] Accelerators does not spelled for JMenuItems by Voice Over
 - 8210782: Upgrade HarfBuzz to the latest 2.3.1
 - 8213110: Remove the use of applets in automatic tests
 - Merge
 - 8218863: Better endpoint checks
 - Merge
 - 8214109: XToolkit is not correctly displayed color on 16-bit high color setting
 - 8211322: Reduce the timeout of tooltip in SwingSet2DemoTest
 - 8224675: Late GC barrier insertion for ZGC
 - 8223305: Compiler support for Switch Expressions
 - 8042748: Clarify exception thrown by ParameterizedTypeImpl.validateConstructorArguments()
 - 8181869: getAnnotatedParameterTypes%G?%@() specification should be clarified
 - 8225322: Broken links in java.sql
 - 8216064: -XX:StartFlightRecording:settings= doesn't work properly
 - 8149040: Cleanup compiler/jsr292/NonInlinedCall tests after JDK-8148994
 - 8224257: fix issues in files generated by pandoc
 - 8224234: compiler/codegen/TestCharVect2.java fails in test_mulc
 - 8223050: JVMCI: findUniqueConcreteMethod() should not use Dependencies::find_unique_concrete_method() for non-virtual methods
 - 8224257: fix issues in files generated by pandoc
 - 8224497: Remove FIXME in metaspaceClosure.cpp
 - 8225350: compiler/jvmci/compilerToVM/IsCompilableTest.java timed out
 - 8225388: Running jcmd Compiler.CodeHeap_Analytics all 0 cause crash
 - 8209626: [JVMCI] Use implicit exception table for dispatch and printing
 - 8216381: More limited privilege usage
 - 8218453: More dynamic RMI interactions
 - 8213431: Improve file protocol handling
 - 8217563: Improve realm maintenance
 - 8216565: Specifying the same path creates a new directory in JFR.configure
 - 8230768: Arrays of SoftReferences in MethodTypeForm should not be @Stable
 - 8230759: ZGC: Fix integer types
 - 8230758: ZGC: Add missing precompiled include and fix friend declaration
 - 8230756: ZGC: Remove redundant memset in ZStatValue
 - 8231149: (fs) Small verbiage errors in java.nio.file package documentation
 - 8231244: Shenandoah: all-roots heap walking misses some weak roots
 - 8231198: Shenandoah: heap walking should visit all roots most of the time
 - 8231197: Shenandoah: JVMTI heap walking cleanup crashes with NULL forwardee
 - 8230814: Enable SAX ContentHandler to handle XML Declaration
 - 8231113: Remove CollectedHeap::check_oop_location()
 - 8226705: [REDO] Deoptimize with handshakes
 - 8231201: hs_err should print coalesced safepoint operations in Events section
 - Added tag jdk-14+15 for changeset 778fc2dcbdaa
 - 8231210: [BACKOUT] JDK-8207266 ThreadMXBean::getThreadAllocatedBytes() can be quicker for self thread
 - 8231162: JVMTI RawMonitorWait triggers assertion failure: Only JavaThreads can be interruptible
 - 8066774: Rename the annotations arrays names in ClassFileParser
 - 8186825: some memory leak issues in the transport_startTransport
 - 8231087: Shenandoah: Self-fixing load reference barriers for C1/C2
 - 8231086: Shenandoah: Stronger invariant for object-arraycopy
 - 8231085: C2/GC: Better GC-interface for expanding clone
 - Merge
 - 8231145: [Graal] org.graalvm.compiler.debug.test.DebugContextTest fails because DebugContextTest.testLogging.input is not available
 - 8231176: Test tools/javac/options/BCPOrSystemNotSpecified.java broken on Windows
 - 8207266: ThreadMXBean::getThreadAllocatedBytes() can be quicker for self thread
 - 8228460: bootstrap class path not set in conjunction with -source 11
 - Added tag jdk-13-ga for changeset 9c250a7600e1
 - 8228482: fix xlc16/xlclang comparison of distinct pointer types and string literal conversion warnings
 - 8231027: Correct typos
 - 8230424: Use platform independent code for Thread.interrupt support
 - 8231024: Improve the debug info when the output is truncated
 - 8230870: (zipfs) Add a ZIP FS test that is similar to test/jdk/java/util/zip/EntryCount64k.java
 - 8231124: Missing closedir call with JDK-8223490
 - 8230350: Shenandoah: Assertion failed when GC is cancelled by a worker thread
 - 8230943: False deadlock detection with -XX:+CIPrintCompileQueue after JDK-8163511
 - 8223490: Optimize search algorithm for determining default time zone
 - 8231051: Remove check_obj_alignment() and replace with is_object_aligned()
 - 8230841: Remove oopDesc::equals()
 - 8230808: Remove Access::equals()
 - 8230796: Remove BarrierSet::oop_equals_operator_allowed()
 - 8230900: missing ReleaseStringUTFChars in java.desktop native code
 - 8230901: missing ReleaseStringUTFChars in serviceability native code
 - 8230742: Make AggressiveUnboxing a diagnostic flag
 - 8230854: Cleanup SuppressWarnings in test lib and remove noisy traces in StreamPumper
 - 8230850: Test sun/tools/jcmd/TestProcessHelper.java fails intermittently
 - 8231033: Problemlist ReservedStackTest
 - 8230882: Use @index in javax.lang.model javadoc
 - 8230910: libsspi_bridge does not build on Windows 32bit
 - 8216354: Syntax error in toolchain_windows.m4
 - 8225490: Miscellaneous changes imported from jsr166 CVS 2019-09
 - 8145138: CyclicBarrier/Basic.java failed with "3 not equal to 4"
 - 8221168: java/util/concurrent/CountDownLatch/Basic.java fails
 - 8227235: rare failures in testForkHelpQuiesce tck tests
 - 8229442: AQS and lock classes refresh
 - 8231025: Incorrect method tag offset for big endian platform
 - 8225797: OldObjectSample event creates unexpected amount of checkpoint data
 - 8230085: (fs) FileStore::isReadOnly is always true on macOS Catalina
 - 8230938: Deprecate MonitorBound
 - 8230937: Update bugid in ProblemList for vmTestbase/nsk/jdb/eval/eval001/eval001.java
 - 8230881: serviceability/sa/TestJmapCore tests fail with java.lang.RuntimeException: Could not find dump file
 - 8151678: com/sun/jndi/ldap/LdapTimeoutTest.java failed due to timeout on DeadServerNoTimeoutTest is incorrect
 - 8230878: ZGC: Use THREAD_LOCAL instead of __thread
 - 8230877: Rename THREAD_LOCAL_DECL to THREAD_LOCAL
 - 8230846: ZGC: Make ZUtils::alloc_aligned() posix-specific
 - 8230845: ZGC: Implement ZLock using os::PlatformMutex
 - 8230829: Matcher matches a surrogate pair that crosses border of the region
 - 8186988: use log_warning() and log_error() instead of tty->print_cr for CDS warning and error messages
 - 8230858: Replace wildcard address with loopback or local host in tests - part 23
 - 8230470: Shenandoah doesn't need change from JDK-8212610 anymore
 - 8230888: jfrVirtualMemory.cpp should include globals.hpp
 - 8220416: Comparison of klass pointers is not optimized any more
 - 8230762: Change MacroAssembler::debug32/64 to use fatal instead of assert
 - 8229701: aarch64: C2 OSR compilation fails with "shouldn't process one node several times" in final graph reshaping
 - 8230856: Java_java_net_NetworkInterface_getByName0 on unix misses ReleaseStringUTFChars in early return
 - 8230861: missing ReleaseStringUTFChars in Java_sun_security_pkcs11_wrapper_PKCS11_connect
 - 8230586: Encapsulate fields in filemap.hpp
 - 8230423: Move os::sleep to JavaThread::sleep
 - Added tag jdk-14+14 for changeset cddef3bde924
 - 8230830: No required ResourceMark in src/hotspot/share/prims/jvmtiImpl.cpp:JvmtiSuspendControl::print()
 - 8229378: jdwp library loader in linker_md.c quietly truncates on buffer overflow
 - 8230734: Remove default constructors from java.compiler
 - 8230674: Heap dumps should exclude dormant CDS archived objects of unloaded classes
 - 8230342: LineNumberReader.getLineNumber() returns inconsistent results after EOF
 - 8192057: com/sun/jdi/BadHandshakeTest.java fails with java.net.ConnectException
 - 8229202: Docker reporting causes secondary crashes in error handling
 - 8230136: DateTimeFormatterBuilder.FractionPrinterParser#parse fails to verify minWidth
 - 8230398: Remove NULL checks before FREE_C_HEAP_ARRAY
 - 8227168: Cleanup usage of NEW_C_HEAP_ARRAY
 - 8230794: Improve assert to get more information about the JDK-8227695 failure
 - 8229960: Remove sun.nio.cs.map system property
 - 8230813: Add JDK-8010500 to compiler/loopopts/superword/TestFuzzPreLoop.java bug list
 - 8229785: MethodType::fromMethodDescriptorString should require security permission if loader is null
 - 8225761: Update --release 13 symbol information after JDK 13 GA
 - 8230781: Add JTREG_FAILURE_HANDLER_TIMEOUT to control timeout handler timeout
 - 8230303: JDB hangs when running monitor command
 - 8230709: Array index out of bounds in ES6 mode
 - 8230766: Changed message in IllegalMonitorStateException
 - 8230566: ZGC: Don't substitute klass pointer during array clearing
 - 8230769: BufImg_SetupICM add ReleasePrimitiveArrayCritical call in early return
 - 8230711: ConnectionGraph::unique_java_object(Node* N) return NULL if n is not in the CG
 - 8230454: [Graal] Add "com/sun/crypto/provider/KeyFactory/TestProviderLeak.java" to Graal problem list
 - 8225653: Provide more information when hitting SIGILL from HaltNode
 - 8207800: always_do_update_barrier is unused
 - 8221361: Eliminate two-phase initialization for PtrQueueSet classes
 - 8230284: Accounting currency format support does not cope with explicit number system
 - 8230516: invalid html in jdwp-protocol.html
 - 8212117: Class.forName may return a reference to a loaded but not linked Class
 - 8230526: jdk.internal.net.http.PlainProxyConnection is never reused by HttpClient
 - 8230723: Remove default constructors from java.lang and java.io
 - 8177389: Hyphen "-" should be removed in URL class documentation
 - 8230132: java/net/NetworkInterface/NetworkInterfaceRetrievalTests.java to skip Teredo Tunneling Pseudo-Interface
 - 8230669: [s390] C1: assert(is_bound() || is_unused()) failed: Label was never bound to a location, but it was used as a jmp target
 - 8230708: Hotspot fails to build on linux-sparc with gcc-9
 - 8230564: Remove os_ext.hpp
 - 8230563: Remove arguments_ext.cpp
 - 8230562: Remove g1HeapSizingPolicy_ext.cpp
 - 8230561: Remove logTag_ext.hpp
 - 8224599: Remove globals_ext.hpp
 - 8228758: assert(_no_handle_mark_nesting == 0) failed: allocating handle inside NoHandleMark
 - 8230129: Add jtreg "serviceability/sa/ClhsdbInspect.java" to graal problem list
 - 8230422: Convert uninterruptible os::sleep calls to os::naked_short_sleep
 - 8226953: AOT: assert(oopDesc::is_oop(obj)) failed: not an oop
 - 8230730: UseCompressedOops test crash with assertion failure
 - 8230662: Remove dead code from MethodTypeForm
 - 8230715: Baseline compare build on Windows fails intermittently in file type for jvm.pdb
 - 8230680: latest Graal unittests depend on jdk.internal.module
 - 8230404: Refactor logged card refinement support in G1DirtyCardQueueSet
 - 8230666: Exclude serviceability/sa/TestInstanceKlassSize.java on linuxppc64 and linuxppc64le
 - 8230694: http.keepAlive system property is inconsistently/incorrectly documented
 - 8230363: C2: Let ConnectionGraph::not_global_escape(Node* n) return false if n is not in the CG
 - 8230671: x86_32 build failures after JDK-8229496
 - 8229831: Upgrade Character.isUnicodeIdentifierStart/Part() methods to the latest standard
 - 8187898: PrintStream should override FilterOutputStream#write(byte[]) with a method that has no throws clause
 - 8230681: Add @since tag to java.io.Serial
 - 8227563: jvmti/scenarios/contention/TC05/tc05t001 fails due to "ERROR: tc05t001.cpp, 278: (waitedThreadCpuTime - waitThreadCpuTime) < (EXPECTED_ACCURACY * 1000000)"
 - 8229280: Test failures on several linux hosts after JDK-8181493
 - 8230632: [TESTBUG] appcds/NonExistClasspath.java and ClassPathAttr.java failed when running in hotspot_appcds_dynamic test group
 - 8228854: Default ErrorListener reports warnings and errors to the console
 - 8230646: Epsilon does not extend TLABs to max size
 - 8229496: SIGFPE (division by zero) in C2 OSR compiled method
 - 8177068: incomplete classpath causes NPE in Flow
 - 8230466: check malloc/calloc results in jdk.hotspot.agent
 - 8230642: 8224815 broke Shenandoah build
 - 8224815: Remove non-GC uses of CollectedHeap::is_in_reserved()
 - 8229189: Improve JFR leak profiler tracing to deal with discontiguous heaps
 - 8228967: Trust/Key store and SSL context utilities for tests
 - Added tag jdk-14+13 for changeset fbbe6672ae15
 - 8230626: Make UnknownFooException strings more informative
 - 8230624: [TESTBUG] Problemlist JFR compiler/TestCodeSweeper.java
 - 8230435: Replace wildcard address with loopback or local host in tests - part 22
 - 8171405: java/net/URLConnection/ResendPostBody.java failed with "Error while cleaning up threads after test"
 - 8230159: Add test to verify that com.sun.net.httpserver.BasicAuthenticator constructors throw expected exceptions
 - 8229450: C2 compilation fails with assert(found_sfpt) failed
 - 8230401: ClassLoaderData::_keep_alive is read with wrong type in c2i entry barrier
 - 8230434: [C1, C2] Release barrier for volatile field stores in constructors implemented inconsistently
 - 8209802: Garbage collectors should register JFR types themselves to avoid build errors
 - 8230431: Move G1 trace code from gcTrace* to G1 directory
 - 8229182: runtime/containers/docker/TestMemoryAwareness.java test fails on SLES12
 - 8230485: add handling of aix tar in configure
 - 8226221: Update PKCS11 tests to use NSS 3.46 libs
 - 6313903: Thread.sleep(3) might wake up immediately on windows
 - 8227236: assert(singleton != __null && singleton != declared_interface) failed
 - 8230483: Shenandoah: consistently disable concurrent roots for Traversal mode
 - 8223714: HTTPSetAuthenticatorTest could be made more resilient
 - 8230428: Cleanup dead CastIP node code in formssel.cpp
 - Merge
 - 8229235: com.sun.net.httpserver.HttpExchange should implement AutoCloseable
 - 8227411: TestTimeMultiple.java failed "assert(!lease()) failed: invariant"
 - 8229437: assert(is_aligned(ref, HeapWordSize)) failed: invariant
 - 8230238: Add another regression test for JDK-8134739
 - 8224214: [AIX] Remove support for legacy xlc compiler
 - 8230373: Use java.io.Serial in generated exception types
 - 8230372: Remove G1GCPhaseTimes::MergeLBProcessedBuffers
 - 8227224: GenCollectedHeap: add subspace transitions for young gen for gc+heap=info log lines
 - 8230337: Clarify intention of Elements.{getPackageOf, getModuleOf}
 - 8230327: Make G1DirtyCardQueueSet free-id init unconditional
 - 8230390: Problemlist SA tests with AOT
 - 8193596: java/net/DatagramPacket/ReuseBuf.java failed due to timeout
 - 8230310: SocksSocketImpl should handle the IllegalArgumentException thrown by ProxySelector.select usage
 - 8230105: -XDfind=diamond crashes
 - 8230307: ZGC: Make zGlobals and zArguments OS agnostic
 - 8230388: Problemlist additional compiler/rtm tests
 - 8230004: jdk/internal/jimage/JImageOpenTest.java runs no test
 - 8230203: Replace markWord enums with typed constants
 - 8230376: [TESTBUG] runtime/StackTrace/HiddenFrameTest.java fails with release VM
 - 8229797: [JVMCI] Clean up no longer used JVMCI::dependencies_invalid value
 - 8229997: Apply java.io.Serial annotations in java.base
 - 8230332: G1DirtyCardQueueSet _notify_when_complete is always true
 - 8228960: [TESTBUG] containers/docker/TestJcmdWithSideCar.java: jcmd reports main class as Unknown
 - 8230109: G1DirtyCardQueueSet should use card counts rather than buffer counts
 - 8230037: Confused MetaData dumped by PrintOptoAssembly
 - 8229999: Apply java.io.Serial annotations to security types in java.base
 - 8182119: jdk.hotspot.agent's META-INF/services/com.sun.jdi.connect.Connector no longer needed
 - 8229284: jdk/internal/platform/cgroup/TestCgroupMetrics.java fails for - memory:getMemoryUsage
 - 8229210: [TESTBUG] Move gc stress tests from JFR directory tree to gc/stress
 - 8230338: Accurate error message about bad Unicode block name
 - 8230302: GenerateJLIClassesPlugin can generate invalid DirectMethodHandle methods
 - 8216977: ShowHiddenFrames use in java_lang_StackTraceElement::fill_in appears broken
 - 8229422: Taskqueue: Outdated selection of weak memory model platforms
 - 8230425: Shenandoah forces +UseNUMAInterleaving even after explicitly disabled
 - 8213432: Better copies of CopiesList
 - 8211936: Better String parsing
 - Merge
 - 8221207: Redo JDK-8218446 - SuspendAtExit hangs
 - 8221220: AArch64: Add StoreStore membar explicitly for Volatile Writes in TemplateTable
 - 8220095: Assertion failure when symlink (with different name) is used for lib/modules file
 - 8221363: Build failure after JDK-8220240 (Refactor shared dirty card queue)
 - 8220240: Refactor shared dirty card queue
 - 8218399: runtime/RedefineObject/TestRedefineObject.java timeout
 - 8218889: Improperly use of the Optional API
 - 8220224: With CLDR provider, NumberFormat.format could not handle locale with number extension correctly
 - 8078860: (spec) InputStream.read(byte[] b, int off, int len) claims to not affect element b[off]
 - 8221179: Zero builds fail when linking with gold and bundling libffi.so
 - 8217564: idempotent protection missing in crc32c.h
 - 8221219: ZGC: Remove ZStallOnOutOfMemory option
 - 8221212: ZGC: Command-line flags should be marked experimental
 - 8221252: (sc) SocketChannel and its socket adaptor need to handle connection reset
 - Merge
 - 8227601: Better collection of references
 - 8227662: freetype seeks to index at the end of the font data
 - 8225292: Better Graphics2D drawing
 - 8224915: Better serial attributes
 - 8223892: Improved handling of jar files
 - 8225298: Improve TLS connection support
 - 8225286: Better rendering of native glyphs
 - 8225597: Enhance font glyph mapping
 - 8224532: Better Path supports
 - 8218877: Help transform transformers
 - 8224062: Improve String index handling
 - 8223518: Unexpected exception in jjs
 - 8222684: Better support for patterns
 - 8224505: TestQuotedLogOutput failure after ProcessBuilder changes
 - 8223886: Add in font table referene
 - 8223505: Better pattern compilation
 - 8221858: Build Better Processes
 - 8224025: Fix for JDK-8220302 is not complete
 - 8213429: Windows file handling redux
 - 8221497: Optional Panes in Swing
 - 8222690: Better Glyph Images
 - 8223326: Regression introduced by CPU sync: java.security.AccessControlException: access denied ("java.net.NetPermission" "setSocketImpl")
 - 8220186: Improve use of font temporary files
 - 8209901: Canonical file handling
 - 8220302: Better Kerberos ccache handling
 - 8217997: Better socket support
 - 8214809: CDS storage improvements
 - 8214712: Archive Attributes$Name.KNOWN_NAMES
 - 8220682: Heap dumping and inspection fails with JDK-8214712
 - 8221262: Cleanups in UnixFileSystem/WinNTFileSystem implementation classes
 - 8217827: [Graal] Some vmTestbase/nsk/jvmti/ResourceExhausted tests failing
 - 8221264: Refactor and update SourceVersion.latestSupported
 - 8146986: JDI: Signature lookups for unprepared classes can take a long time
 - 8221434: Fix typo in lib-x11 autoconf error message about missing headers
 - 8221357: Update test documentation by deleting "cd test && make"
 - 8221343: x86_32 crashes on startup with "_hwm out of range"
 - 8216989: CardTableBarrierSetAssembler::gen_write_ref_array_post_barrier() does not check for zero length on AARCH64
 - 8220445: Support for side by side MSVC Toolset versions
 - 8221260: Initialize more class members on construction, remove some unused ones
 - 8217362: Emergency dump does not work when disk=false is set
 - 8219100: Improve do_collection_pause_at_safepoint
 - 8220295: sun/tools/jps/TestJps.java still timing out
 - 8221164: jstatLineCounts tests need to be more resilient for NaN outputs
 - 8233498: Remove dead code
 - 8230767: FlightRecorderListener returns null recording
 - 8233886: TEST_BUG jdk/java/net/CookieHandler/B6791927.java hit hardcoded expiration date
 - 8233065: PSParallelCompact::move_and_update is unused and should be removed
 - 8233790: Forward output from heap dumper to jcmd/jmap
 - 8231922: Could not find field with name revokedClass
 - 8229694: JVM crash in SWPointer during C2 OSR compilation
 - 8233745: [JVMCI] TranslatedException should serialize classloader and module info
 - 8233435: (dc) DatagramChannel should allow IPv6 socket join IPv4 multicast groups (macOS, win)
 - 8216472: (se) Stack overflow during selection operation leads to crash (win)
 - 8233621: Mismatch in jsse.enableMFLNExtension property name
 - 8233839: aarch64: missing memory barrier in NewObjectArrayStub and NewTypeArrayStub
 - 8233855: [TESTBUG] appcds/FieldLayoutFlags.java failed to clean up files after test
 - 8233850: Shenandoah: Shenandoah thread count ergonomics should be container aware
 - 8220479: java/nio/channels/Selector/SelectWithConsumer.java failed at testTwoChannels()
 - 8233337: Shenandoah: Cleanup AArch64 SBSA::load_reference_barrier_not_null()
 - 8233339: Shenandoah: Centralize load barrier decisions into ShenandoahBarrierSet
 - 8233389: Add PrintIdeal to compiler directives
 - 8189737: Make HeapRegion not derive from Space
 - 8233788: Remove useless asserts in PhaseCFG::insert_anti_dependences
 - 8233086: [TESTBUG] need to test field layout style difference between CDS dump time and run time
 - 8233741: AES Countermode (AES-CTR) optimization using AVX512 + VAES instructions
 - 8209813: [TESTBUG] rewrite JFR shell tests in Java
 - 8232178: MacVolumesTest failed after upgrade to MacOS Catalina
 - 8230364: [JVMCI] a number of JVMCI tests are not jtreg enabled
 - 8233364: Fix undefined behavior in Canonicalizer::do_ShiftOp
 - 8232871: Host Locale Provider on Mac does not return translated values of Japanese calendar
 - 8233579: DateFormatSymbols.getShortMonths() return wrong string on es_CL, es_CO locales
 - 8233403: Improve verbosity of some httpclient tests
 - 8232905: JFR fails with assertion: assert(t->unflushed_size() == 0) failed: invariant
 - 8233416: JFR: assert((((((klass)->trace_id()) & (((1 << 1) << 8) | (JfrTraceIdEpoch::in_use_this_epoch_bit()))) != 0))) failed: invariant
 - 8233793: ZGC: Incorrect type used in ZBarrierSetC2 clone_type()
 - 8233796: Shenandoah is broken after 8233708
 - 8233784: ProblemList failing JVMTI scenario tests
 - 8233708: VectorSet cleanup
 - 8233073: Make BitMap accessors more memory ordering friendly
 - 8232539: SIGSEGV in C2 Node::unique_ctrl_out
 - 8233328: fix minimal VM build on Linux s390x
 - 8233783: Make 8232896 patch complete
 - 8233491: Crash in AdapterHandlerLibrary::get_adapter with CDS due to code cache exhaustion
 - 8233454: Test fails with assert(!is_init_completed(), "should only happen during init") after JDK-8229516
 - Added tag jdk-14+22 for changeset 83810b7d12e7
 - 8233698: GCC 4.8.5 build failure after JDK-8233530
 - 8233671: [TESTBUG] runtime/cds/appcds/sharedStrings/FlagCombo.java fails to compile without jfr
 - 8233658: Escape + in the expression describing Runtime.Version string
 - 8223940: Private key not supported by chosen signature algorithm
 - 8231955: ARM32: Address displacement is 0 for volatile field access because of Unsafe field access
 - 8233600: Cross-builds fails after JDK-8233285
 - 8233695: AArch64 build failures after -Wno-extra removal
 - 8233401: Shenandoah: Refactor/cleanup Shenandoah load barrier code
 - 8233375: JFR emergency dump does not recover thread state
 - 8233659: [TESTBUG] runtime/cds/appcds/CommandLineFlagCombo.java fails when jfr is disabled
 - 8233650: Javadoc for Math.floorMod(int, int) gives wrong example
 - 8233599: ARM32 Build failed due to 8232050 missing an include
 - 8233622: (zipfs) open/test/jdk/jdk/nio/zipfs/CopyMoveTests.java has incorrect bug label
 - 8233608: Minimal build broken after JDK-8233494
 - 8233590: Compiler thread creation fails with assert(_c2_count > 0 || _c1_count > 0) failed: No compilers?
 - 8233496: AOT tests failures with 'java.lang.RuntimeException: Failed to find sun/hotspot/WhiteBox.class'
 - 8232209: Update double-conversion license file to version 3.1.5
 - 8233530: gcc 5.4 build warning -Wc++14-compat after JDK-8233359
 - 8233081: C1: PatchingStub for field access copies too much
 - 8232896: ZGC: Enable C2 clone intrinsic
 - 8232880: Update test documentation with additional settings for client UI tooltip tests
 - 8233574: Shenandoah: build is broken without jfr
 - 8233495: Some fieldDescriptor methods can pass existing constantPoolHandle
 - 8233494: Avoid calling MallocTracker::record_malloc and record_free when NMT is off
 - 8233429: Minimal and zero VM build broken after JDK-8227003
 - 8233019: java.lang.Class.isPrimitive() (C1) returns wrong result if Klass* is aligned to 32bit
 - 8189861: Refactor CacheFind
 - 8221724: Enable archiving of Strings with hash 0
 - 8221723: Avoid storing zero to String.hash
 - 8221748: Remove unused oopDesc::is_unlocked_oop()
 - 8221732: Introduce CollectedHeap::hash_oop()
 - 8221648: Remove CollectedHeap::is_in_closed_subset()
 - 8221541: clean up functions in CompilerOracle

Changes: https://git.openjdk.java.net/tsan/pull/3/files
 Webrev: https://webrevs.openjdk.java.net/tsan/3/webrev.00

The following webrevs contain only the adjustments done while merging with regards to each parent branch:
 - tsan: https://webrevs.openjdk.java.net/tsan/3/webrev.00.0
 - openjdk/tsan:tsan: https://webrevs.openjdk.java.net/tsan/3/webrev.00.1

  Stats: 1464449 lines in 14950 files changed: 817732 ins; 473950 del; 172767 mod
  Patch: https://git.openjdk.java.net/tsan/pull/3.diff
  Fetch: git fetch https://git.openjdk.java.net/tsan pull/3/head:pull/3

PR: https://git.openjdk.java.net/tsan/pull/3

From manc at google.com  Sat Apr 11 00:32:17 2020
From: manc at google.com (Man Cao)
Date: Fri, 10 Apr 2020 17:32:17 -0700
Subject: RFR: Merge openjdk/tsan:tsan
In-Reply-To: <OamMT-htT6-vfQoGtJvpvafAATMis_Eo0nPwQPx3d80=.511e0cc7-9541-48ab-9101-4f3394da76e9@github.com>
References: <OamMT-htT6-vfQoGtJvpvafAATMis_Eo0nPwQPx3d80=.511e0cc7-9541-48ab-9101-4f3394da76e9@github.com>
Message-ID: <CA+w6HxYqCa9w7SkGAzT1OASOKP5kiryvA76K19aQavQ4-zkAAA@mail.gmail.com>

I have already integrated this merge. All tests passed with both fastdebug
and product build with LLVM 8.

Project Skara pleasantly surprises me to generate such huge webrevs.
Particularly these two webrevs, which are reviewable if one invests some
time:

The following webrevs contain only the adjustments done while merging with
> regards to each parent branch:
>  - tsan: https://webrevs.openjdk.java.net/tsan/3/webrev.00.0
>  - openjdk/tsan:tsan: https://webrevs.openjdk.java.net/tsan/3/webrev.00.1

From aeubanks at openjdk.java.net  Tue Apr 14 17:56:27 2020
From: aeubanks at openjdk.java.net (Arthur Eubanks)
Date: Tue, 14 Apr 2020 17:56:27 GMT
Subject: RFR: Fix check for volatile in putfield_or_static
Message-ID: <IHjryUU0AiUMQ22IIF9H66iaRj7vEgz8BvZysaPn6j4=.fd199be4-c665-4253-ab73-8148b05f84a0@github.com>

rdx contains the raw flags without shifts. We want to check if it contains the volatile bit, so testl against the
volatile bit.

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

Commit messages:
 - Fix check for volatile in putfield_or_static

Changes: https://git.openjdk.java.net/tsan/pull/4/files
 Webrev: https://webrevs.openjdk.java.net/tsan/4/webrev.00
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/tsan/pull/4.diff
  Fetch: git fetch https://git.openjdk.java.net/tsan pull/4/head:pull/4

PR: https://git.openjdk.java.net/tsan/pull/4

From manc at openjdk.java.net  Tue Apr 14 18:11:00 2020
From: manc at openjdk.java.net (Man Cao)
Date: Tue, 14 Apr 2020 18:11:00 GMT
Subject: RFR: Fix check for volatile in putfield_or_static
In-Reply-To: <IHjryUU0AiUMQ22IIF9H66iaRj7vEgz8BvZysaPn6j4=.fd199be4-c665-4253-ab73-8148b05f84a0@github.com>
References: <IHjryUU0AiUMQ22IIF9H66iaRj7vEgz8BvZysaPn6j4=.fd199be4-c665-4253-ab73-8148b05f84a0@github.com>
Message-ID: <i8EgDObAE2S7aVXSYUesd_wu4EGp1XNDe0FnSm5VzAQ=.c5fae7fd-d3cc-405f-a5f8-5ae24c58c7c0@github.com>

On Tue, 14 Apr 2020 17:51:03 GMT, Arthur Eubanks <aeubanks at openjdk.org> wrote:

> rdx contains the raw flags without shifts. We want to check if it contains the volatile bit, so testl against the
> volatile bit.

LGTM.

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

Marked as reviewed by manc (Reviewer).

PR: https://git.openjdk.java.net/tsan/pull/4

From aeubanks at openjdk.java.net  Tue Apr 14 18:17:03 2020
From: aeubanks at openjdk.java.net (Arthur Eubanks)
Date: Tue, 14 Apr 2020 18:17:03 GMT
Subject: [Integrated] RFR: Fix check for volatile in putfield_or_static
In-Reply-To: <IHjryUU0AiUMQ22IIF9H66iaRj7vEgz8BvZysaPn6j4=.fd199be4-c665-4253-ab73-8148b05f84a0@github.com>
References: <IHjryUU0AiUMQ22IIF9H66iaRj7vEgz8BvZysaPn6j4=.fd199be4-c665-4253-ab73-8148b05f84a0@github.com>
Message-ID: <d39e12ec-b739-4661-a945-92939f9a590a@openjdk.org>

Changeset: c99ad6a7
Author:    Arthur Eubanks <aeubanks at openjdk.org>
Date:      2020-04-14 18:16:32 +0000
URL:       https://git.openjdk.java.net/tsan/commit/c99ad6a7

Fix check for volatile in putfield_or_static

Reviewed-by: manc

! src/hotspot/cpu/x86/templateTable_x86.cpp

From github.com+10233373+jhe33 at openjdk.java.net  Fri Apr 17 10:58:47 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Fri, 17 Apr 2020 10:58:47 GMT
Subject: RFR: Enable aarch64 build in jdk/tsan.
In-Reply-To: <IuLFMsIizr1nld26zDTw57JK899B7u7J9VYjTb0_SW0=.44762cf8-fcaf-477c-8222-8d86f620f4a1@github.com>
References: <iieIJm1u4j1yxD1WitpKQI6wP1U2TplDB2vwySPvK_A=.02e9b112-6b03-436f-92a9-eda608a0d491@github.com>
 <IuLFMsIizr1nld26zDTw57JK899B7u7J9VYjTb0_SW0=.44762cf8-fcaf-477c-8222-8d86f620f4a1@github.com>
Message-ID: <u1gxBM0D2I3MSG66geb05_Wnontx6C9XOJryduz3PiM=.2015afad-f861-4407-b67c-93eca341736d@github.com>

On Thu, 16 Apr 2020 02:08:08 GMT, Man Cao <manc at openjdk.org> wrote:

>> Enable INCLUDE_TSAN in aarch64, and add the option -fno-experiment-isel when build aarch64 to
>> avoid a known bug [1] in llvm-8, recommended compiler in jdk/tsan,
>> which generates wrong debug info.
>> 
>> In addition, change aarch64 release build option from -O3 to -Os to prevent a crash occurs
>> in build process, caused by a known issue [2].
>> 
>> [1] https://bugs.llvm.org/show_bug.cgi?id=40887
>> [2] https://bugs.llvm.org/show_bug.cgi?id=44581
>
> make/autoconf/flags-cflags.m4 line 303:
> 
>> 302:     # (see https://bugs.llvm.org/show_bug.cgi?id=44581) which makes release build crash in aarch64.
>> 303:     if test "x$OPENJDK_TARGET_OS" = xmacosx || test "x$OPENJDK_TARGET_CPU" = xaarch64; then
>> 304:       # On MacOSX we optimize for size, something
> 
> Would you consider contributing this change to jdk/jdk mainline?

I suppose the reporter will do it.

> make/autoconf/flags-cflags.m4 line 573:
> 
>> 572:     # Disable experimental isel due to a known issue in llvm-8, which generates wrong debug info.
>> 573:     # (see https://bugs.llvm.org/show_bug.cgi?id=40887)
>> 574:     if test "x$OPENJDK_TARGET_CPU" = xaarch64; then
> 
> Does using the latest released LLVM 10.0.0 resolve this problem? If yes, we don't need to add this flag.
> 
> TSAN don't have a strong fixation to LLVM 8, and we'd recommend using the latest released LLVM. Version 8 just happened
> to be the latest released version when we wrote the wiki page. We are happy to update the Wiki page.

I just tried llvm-9, the debug info is still wrong, makes debugging hard, even though the bug report said it has been
fixed in llvm-9. after disable it by fno-experimental-isel, everything is fine.

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

PR: https://git.openjdk.java.net/tsan/pull/5

From github.com+10233373+jhe33 at openjdk.java.net  Fri Apr 17 10:58:47 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Fri, 17 Apr 2020 10:58:47 GMT
Subject: RFR: Enable aarch64 build in jdk/tsan.
In-Reply-To: <u1gxBM0D2I3MSG66geb05_Wnontx6C9XOJryduz3PiM=.2015afad-f861-4407-b67c-93eca341736d@github.com>
References: <iieIJm1u4j1yxD1WitpKQI6wP1U2TplDB2vwySPvK_A=.02e9b112-6b03-436f-92a9-eda608a0d491@github.com>
 <IuLFMsIizr1nld26zDTw57JK899B7u7J9VYjTb0_SW0=.44762cf8-fcaf-477c-8222-8d86f620f4a1@github.com>
 <u1gxBM0D2I3MSG66geb05_Wnontx6C9XOJryduz3PiM=.2015afad-f861-4407-b67c-93eca341736d@github.com>
Message-ID: <paMqUv-CSSqkq4GTKYzWWw5AHWgNq15CtA8_B88zfJ8=.e0056c71-b6bd-43c7-abab-e4248c15090e@github.com>

On Thu, 16 Apr 2020 03:20:40 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

>> make/autoconf/flags-cflags.m4 line 573:
>> 
>>> 572:     # Disable experimental isel due to a known issue in llvm-8, which generates wrong debug info.
>>> 573:     # (see https://bugs.llvm.org/show_bug.cgi?id=40887)
>>> 574:     if test "x$OPENJDK_TARGET_CPU" = xaarch64; then
>> 
>> Does using the latest released LLVM 10.0.0 resolve this problem? If yes, we don't need to add this flag.
>> 
>> TSAN don't have a strong fixation to LLVM 8, and we'd recommend using the latest released LLVM. Version 8 just happened
>> to be the latest released version when we wrote the wiki page. We are happy to update the Wiki page.
>
> I just tried llvm-9, the debug info is still wrong, makes debugging hard, even though the bug report said it has been
> fixed in llvm-9. after disable it by fno-experimental-isel, everything is fine.

I will take a try to use clang-10.

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

PR: https://git.openjdk.java.net/tsan/pull/5

From github.com+10233373+jhe33 at openjdk.java.net  Fri Apr 17 10:58:47 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Fri, 17 Apr 2020 10:58:47 GMT
Subject: RFR: Enable aarch64 build in jdk/tsan.
In-Reply-To: <paMqUv-CSSqkq4GTKYzWWw5AHWgNq15CtA8_B88zfJ8=.e0056c71-b6bd-43c7-abab-e4248c15090e@github.com>
References: <iieIJm1u4j1yxD1WitpKQI6wP1U2TplDB2vwySPvK_A=.02e9b112-6b03-436f-92a9-eda608a0d491@github.com>
 <IuLFMsIizr1nld26zDTw57JK899B7u7J9VYjTb0_SW0=.44762cf8-fcaf-477c-8222-8d86f620f4a1@github.com>
 <u1gxBM0D2I3MSG66geb05_Wnontx6C9XOJryduz3PiM=.2015afad-f861-4407-b67c-93eca341736d@github.com>
 <paMqUv-CSSqkq4GTKYzWWw5AHWgNq15CtA8_B88zfJ8=.e0056c71-b6bd-43c7-abab-e4248c15090e@github.com>
Message-ID: <Z31Prj8rG-QdUvb1W67jrzIC3uPDFSPIbbbqrqPfY9w=.42aae67e-5afe-40c1-bdb5-79408913356c@github.com>

On Thu, 16 Apr 2020 03:36:25 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

>> I just tried llvm-9, the debug info is still wrong, makes debugging hard, even though the bug report said it has been
>> fixed in llvm-9. after disable it by fno-experimental-isel, everything is fine.
>
> I will take a try to use clang-10.

or I can remove the configuration, and use it only locally.

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

PR: https://git.openjdk.java.net/tsan/pull/5

From manc at openjdk.java.net  Fri Apr 17 10:58:46 2020
From: manc at openjdk.java.net (Man Cao)
Date: Fri, 17 Apr 2020 10:58:46 GMT
Subject: RFR: Enable aarch64 build in jdk/tsan.
In-Reply-To: <iieIJm1u4j1yxD1WitpKQI6wP1U2TplDB2vwySPvK_A=.02e9b112-6b03-436f-92a9-eda608a0d491@github.com>
References: <iieIJm1u4j1yxD1WitpKQI6wP1U2TplDB2vwySPvK_A=.02e9b112-6b03-436f-92a9-eda608a0d491@github.com>
Message-ID: <IuLFMsIizr1nld26zDTw57JK899B7u7J9VYjTb0_SW0=.44762cf8-fcaf-477c-8222-8d86f620f4a1@github.com>

On Wed, 15 Apr 2020 08:46:30 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

> Enable INCLUDE_TSAN in aarch64, and add the option -fno-experiment-isel when build aarch64 to
> avoid a known bug [1] in llvm-8, recommended compiler in jdk/tsan,
> which generates wrong debug info.
> 
> In addition, change aarch64 release build option from -O3 to -Os to prevent a crash occurs
> in build process, caused by a known issue [2].
> 
> [1] https://bugs.llvm.org/show_bug.cgi?id=40887
> [2] https://bugs.llvm.org/show_bug.cgi?id=44581

I have also sent Skara a question about "/covered" command and OCA.
https://mail.openjdk.java.net/pipermail/skara-dev/2020-April/002375.html

make/autoconf/flags-cflags.m4 line 303:

> 302:     # (see https://bugs.llvm.org/show_bug.cgi?id=44581) which makes release build crash in aarch64.
> 303:     if test "x$OPENJDK_TARGET_OS" = xmacosx || test "x$OPENJDK_TARGET_CPU" = xaarch64; then
> 304:       # On MacOSX we optimize for size, something

Would you consider contributing this change to jdk/jdk mainline?

make/autoconf/flags-cflags.m4 line 573:

> 572:     # Disable experimental isel due to a known issue in llvm-8, which generates wrong debug info.
> 573:     # (see https://bugs.llvm.org/show_bug.cgi?id=40887)
> 574:     if test "x$OPENJDK_TARGET_CPU" = xaarch64; then

Does using the latest released LLVM 10.0.0 resolve this problem? If yes, we don't need to add this flag.

TSAN don't have a strong fixation to LLVM 8, and we'd recommend using the latest released LLVM. Version 8 just happened
to be the latest released version when we wrote the wiki page. We are happy to update the Wiki page.

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

PR: https://git.openjdk.java.net/tsan/pull/5

From github.com+10233373+jhe33 at openjdk.java.net  Fri Apr 17 10:58:45 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Fri, 17 Apr 2020 10:58:45 GMT
Subject: RFR: Enable aarch64 build in jdk/tsan.
Message-ID: <iieIJm1u4j1yxD1WitpKQI6wP1U2TplDB2vwySPvK_A=.02e9b112-6b03-436f-92a9-eda608a0d491@github.com>

Enable INCLUDE_TSAN in aarch64, and add the option -fno-experiment-isel when build aarch64 to
avoid a known bug [1] in llvm-8, recommended compiler in jdk/tsan,
which generates wrong debug info.

In addition, change aarch64 release build option from -O3 to -Os to prevent a crash occurs
in build process, caused by a known issue [2].

[1] https://bugs.llvm.org/show_bug.cgi?id=40887
[2] https://bugs.llvm.org/show_bug.cgi?id=44581

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

Commit messages:
 - Enable aarch64 build in jdk/tsan.

Changes: https://git.openjdk.java.net/tsan/pull/5/files
 Webrev: https://webrevs.openjdk.java.net/tsan/5/webrev.00
  Stats: 10 lines in 2 files changed: 8 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/tsan/pull/5.diff
  Fetch: git fetch https://git.openjdk.java.net/tsan pull/5/head:pull/5

PR: https://git.openjdk.java.net/tsan/pull/5

From github.com+10233373+jhe33 at openjdk.java.net  Fri Apr 17 10:58:47 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Fri, 17 Apr 2020 10:58:47 GMT
Subject: RFR: Enable aarch64 build in jdk/tsan.
In-Reply-To: <Z31Prj8rG-QdUvb1W67jrzIC3uPDFSPIbbbqrqPfY9w=.42aae67e-5afe-40c1-bdb5-79408913356c@github.com>
References: <iieIJm1u4j1yxD1WitpKQI6wP1U2TplDB2vwySPvK_A=.02e9b112-6b03-436f-92a9-eda608a0d491@github.com>
 <IuLFMsIizr1nld26zDTw57JK899B7u7J9VYjTb0_SW0=.44762cf8-fcaf-477c-8222-8d86f620f4a1@github.com>
 <u1gxBM0D2I3MSG66geb05_Wnontx6C9XOJryduz3PiM=.2015afad-f861-4407-b67c-93eca341736d@github.com>
 <paMqUv-CSSqkq4GTKYzWWw5AHWgNq15CtA8_B88zfJ8=.e0056c71-b6bd-43c7-abab-e4248c15090e@github.com>
 <Z31Prj8rG-QdUvb1W67jrzIC3uPDFSPIbbbqrqPfY9w=.42aae67e-5afe-40c1-bdb5-79408913356c@github.com>
Message-ID: <5H1XJ65QfTBF7xNU_DU6KW2QDbLiqSAzUbOxwXaKRTQ=.3d23930f-12e1-4cec-9d95-489b8c0b9884@github.com>

On Thu, 16 Apr 2020 03:37:10 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

>> I will take a try to use clang-10.
>
> or I can remove the configuration, and use it only locally.

Thread 3 "java" hit Breakpoint 2, 0x0000ffffb3953da4 in Arguments::set_heap_size () at
/home/wave/workspace/jdk_tsan_workspace_aarch64/src/hotspot/share/oops/klass.hpp:297 297       ClassLoaderData*
class_loader_data() const               { return _class_loader_data; } (gdb) x/20i $pc
=> 0xffffb3953da4 <Arguments::set_heap_size()+12>:      mov     w0, #0x349                      // #841
   0xffffb3953da8 <Arguments::set_heap_size()+16>:      adrp    x8, 0xffffb49d7000
   0xffffb3953dac <Arguments::set_heap_size()+20>:      ldr     x8, [x8, #1592]
   0xffffb3953db0 <Arguments::set_heap_size()+24>:      adrp    x9, 0xffffb49d3000
   0xffffb3953db4 <Arguments::set_heap_size()+28>:      ldr     x9, [x9, #3264]
   0xffffb3953db8 <Arguments::set_heap_size()+32>:      adrp    x10, 0xffffb49d6000
   0xffffb3953dbc <Arguments::set_heap_size()+36>:      ldr     x10, [x10, #2112]
   0xffffb3953dc0 <Arguments::set_heap_size()+40>:      adrp    x11, 0xffffb49d6000
   0xffffb3953dc4 <Arguments::set_heap_size()+44>:      ldr     x11, [x11, #432]
   0xffffb3953dc8 <Arguments::set_heap_size()+48>:      adrp    x12, 0xffffb4a12000 <_ZL17special_jvm_flags+608>
   0xffffb3953dcc <Arguments::set_heap_size()+52>:      add     x12, x12, #0x28
   0xffffb3953dd0 <Arguments::set_heap_size()+56>:      adrp    x13, 0xffffb49d4000
   0xffffb3953dd4 <Arguments::set_heap_size()+60>:      ldr     x13, [x13, #1464]
   0xffffb3953dd8 <Arguments::set_heap_size()+64>:      adrp    x14, 0xffffb49d8000
   0xffffb3953ddc <Arguments::set_heap_size()+68>:      ldr     x14, [x14, #960]
   0xffffb3953de0 <Arguments::set_heap_size()+72>:      str     x8, [sp, #80]
   0xffffb3953de4 <Arguments::set_heap_size()+76>:      str     x9, [sp, #72]
   0xffffb3953de8 <Arguments::set_heap_size()+80>:      str     x10, [sp, #64]
   0xffffb3953dec <Arguments::set_heap_size()+84>:      str     x11, [sp, #56]
   0xffffb3953df0 <Arguments::set_heap_size()+88>:      str     x12, [sp, #48]
seems debug info by llvm-10 is still wrong, and assembly code is correct. I'm not sure if it's related to my env. but
disable it by -fno-experimental-isel, everything is ok.

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

PR: https://git.openjdk.java.net/tsan/pull/5

From aeubanks at openjdk.java.net  Fri Apr 17 18:55:03 2020
From: aeubanks at openjdk.java.net (Arthur Eubanks)
Date: Fri, 17 Apr 2020 18:55:03 GMT
Subject: RFR: Enable aarch64 build in jdk/tsan.
In-Reply-To: <IuLFMsIizr1nld26zDTw57JK899B7u7J9VYjTb0_SW0=.44762cf8-fcaf-477c-8222-8d86f620f4a1@github.com>
References: <iieIJm1u4j1yxD1WitpKQI6wP1U2TplDB2vwySPvK_A=.02e9b112-6b03-436f-92a9-eda608a0d491@github.com>
 <IuLFMsIizr1nld26zDTw57JK899B7u7J9VYjTb0_SW0=.44762cf8-fcaf-477c-8222-8d86f620f4a1@github.com>
Message-ID: <qGXwG-MIBtGR4iIBIIJmiDwms_LHK9jiRNKj5eeeB2g=.12738531-0ffe-4c16-bc86-534494d61c72@github.com>

On Thu, 16 Apr 2020 02:14:30 GMT, Man Cao <manc at openjdk.org> wrote:

>> Enable INCLUDE_TSAN in aarch64, and add the option -fno-experiment-isel when build aarch64 to
>> avoid a known bug [1] in llvm-8, recommended compiler in jdk/tsan,
>> which generates wrong debug info.
>> 
>> In addition, change aarch64 release build option from -O3 to -Os to prevent a crash occurs
>> in build process, caused by a known issue [2].
>> 
>> [1] https://bugs.llvm.org/show_bug.cgi?id=40887
>> [2] https://bugs.llvm.org/show_bug.cgi?id=44581
>
> I have also sent Skara a question about "/covered" command and OCA.
> https://mail.openjdk.java.net/pipermail/skara-dev/2020-April/002375.html

This looks fine, but I would also prefer this be submitted in jdk/jdk, then we can merge that into jdk/tsan.

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

PR: https://git.openjdk.java.net/tsan/pull/5

From manc at openjdk.java.net  Fri Apr 17 20:04:46 2020
From: manc at openjdk.java.net (Man Cao)
Date: Fri, 17 Apr 2020 20:04:46 GMT
Subject: RFR: Enable aarch64 build in jdk/tsan.
In-Reply-To: <qGXwG-MIBtGR4iIBIIJmiDwms_LHK9jiRNKj5eeeB2g=.12738531-0ffe-4c16-bc86-534494d61c72@github.com>
References: <iieIJm1u4j1yxD1WitpKQI6wP1U2TplDB2vwySPvK_A=.02e9b112-6b03-436f-92a9-eda608a0d491@github.com>
 <IuLFMsIizr1nld26zDTw57JK899B7u7J9VYjTb0_SW0=.44762cf8-fcaf-477c-8222-8d86f620f4a1@github.com>
 <qGXwG-MIBtGR4iIBIIJmiDwms_LHK9jiRNKj5eeeB2g=.12738531-0ffe-4c16-bc86-534494d61c72@github.com>
Message-ID: <shRAL6KGrJK2xPM3nXhOKTO6qkWPslQyboBLuJNpeMs=.a0630b68-ece1-4864-88aa-708bb404b71c@github.com>

On Fri, 17 Apr 2020 18:52:26 GMT, Arthur Eubanks <aeubanks at openjdk.org> wrote:

>> I have also sent Skara a question about "/covered" command and OCA.
>> https://mail.openjdk.java.net/pipermail/skara-dev/2020-April/002375.html
>
> This looks fine, but I would also prefer this be submitted in jdk/jdk, then we can merge that into jdk/tsan.

Looks good!

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

PR: https://git.openjdk.java.net/tsan/pull/5

From manc at openjdk.java.net  Fri Apr 17 20:04:46 2020
From: manc at openjdk.java.net (Man Cao)
Date: Fri, 17 Apr 2020 20:04:46 GMT
Subject: RFR: Enable aarch64 build in jdk/tsan.
In-Reply-To: <5H1XJ65QfTBF7xNU_DU6KW2QDbLiqSAzUbOxwXaKRTQ=.3d23930f-12e1-4cec-9d95-489b8c0b9884@github.com>
References: <iieIJm1u4j1yxD1WitpKQI6wP1U2TplDB2vwySPvK_A=.02e9b112-6b03-436f-92a9-eda608a0d491@github.com>
 <IuLFMsIizr1nld26zDTw57JK899B7u7J9VYjTb0_SW0=.44762cf8-fcaf-477c-8222-8d86f620f4a1@github.com>
 <u1gxBM0D2I3MSG66geb05_Wnontx6C9XOJryduz3PiM=.2015afad-f861-4407-b67c-93eca341736d@github.com>
 <paMqUv-CSSqkq4GTKYzWWw5AHWgNq15CtA8_B88zfJ8=.e0056c71-b6bd-43c7-abab-e4248c15090e@github.com>
 <Z31Prj8rG-QdUvb1W67jrzIC3uPDFSPIbbbqrqPfY9w=.42aae67e-5afe-40c1-bdb5-79408913356c@github.com>
 <5H1XJ65QfTBF7xNU_DU6KW2QDbLiqSAzUbOxwXaKRTQ=.3d23930f-12e1-4cec-9d95-489b8c0b9884@github.com>
Message-ID: <BxVtzwa11NphFFWtrdqXHe_V7Za9mw_Sb1AeZTuLihU=.b09cfc6a-8506-4c4b-bb12-289bc6e72413@github.com>

On Thu, 16 Apr 2020 09:37:14 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

>> or I can remove the configuration, and use it only locally.
>
> Thread 3 "java" hit Breakpoint 2, 0x0000ffffb3953da4 in Arguments::set_heap_size () at
> /home/wave/workspace/jdk_tsan_workspace_aarch64/src/hotspot/share/oops/klass.hpp:297 297       ClassLoaderData*
> class_loader_data() const               { return _class_loader_data; } (gdb) x/20i $pc
> => 0xffffb3953da4 <Arguments::set_heap_size()+12>:      mov     w0, #0x349                      // #841
>    0xffffb3953da8 <Arguments::set_heap_size()+16>:      adrp    x8, 0xffffb49d7000
>    0xffffb3953dac <Arguments::set_heap_size()+20>:      ldr     x8, [x8, #1592]
>    0xffffb3953db0 <Arguments::set_heap_size()+24>:      adrp    x9, 0xffffb49d3000
>    0xffffb3953db4 <Arguments::set_heap_size()+28>:      ldr     x9, [x9, #3264]
>    0xffffb3953db8 <Arguments::set_heap_size()+32>:      adrp    x10, 0xffffb49d6000
>    0xffffb3953dbc <Arguments::set_heap_size()+36>:      ldr     x10, [x10, #2112]
>    0xffffb3953dc0 <Arguments::set_heap_size()+40>:      adrp    x11, 0xffffb49d6000
>    0xffffb3953dc4 <Arguments::set_heap_size()+44>:      ldr     x11, [x11, #432]
>    0xffffb3953dc8 <Arguments::set_heap_size()+48>:      adrp    x12, 0xffffb4a12000 <_ZL17special_jvm_flags+608>
>    0xffffb3953dcc <Arguments::set_heap_size()+52>:      add     x12, x12, #0x28
>    0xffffb3953dd0 <Arguments::set_heap_size()+56>:      adrp    x13, 0xffffb49d4000
>    0xffffb3953dd4 <Arguments::set_heap_size()+60>:      ldr     x13, [x13, #1464]
>    0xffffb3953dd8 <Arguments::set_heap_size()+64>:      adrp    x14, 0xffffb49d8000
>    0xffffb3953ddc <Arguments::set_heap_size()+68>:      ldr     x14, [x14, #960]
>    0xffffb3953de0 <Arguments::set_heap_size()+72>:      str     x8, [sp, #80]
>    0xffffb3953de4 <Arguments::set_heap_size()+76>:      str     x9, [sp, #72]
>    0xffffb3953de8 <Arguments::set_heap_size()+80>:      str     x10, [sp, #64]
>    0xffffb3953dec <Arguments::set_heap_size()+84>:      str     x11, [sp, #56]
>    0xffffb3953df0 <Arguments::set_heap_size()+88>:      str     x12, [sp, #48]
> seems debug info by llvm-10 is still wrong, and assembly code is correct. I'm not sure if it's related to my env. but
> disable it by -fno-experimental-isel, everything is ok.

Thanks for testing it out.

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

PR: https://git.openjdk.java.net/tsan/pull/5

From manc at openjdk.java.net  Fri Apr 17 20:05:01 2020
From: manc at openjdk.java.net (Man Cao)
Date: Fri, 17 Apr 2020 20:05:01 GMT
Subject: [Integrated] RFR: Enable aarch64 build in jdk/tsan.
In-Reply-To: <iieIJm1u4j1yxD1WitpKQI6wP1U2TplDB2vwySPvK_A=.02e9b112-6b03-436f-92a9-eda608a0d491@github.com>
References: <iieIJm1u4j1yxD1WitpKQI6wP1U2TplDB2vwySPvK_A=.02e9b112-6b03-436f-92a9-eda608a0d491@github.com>
Message-ID: <be977ade-a6cf-42e6-ad3b-c4ae3faec3d9@openjdk.org>

Changeset: aeb549dc
Author:    jie.he <10233373+jhe33 at users.noreply.github.com>
Committer: Man Cao <manc at openjdk.org>
Date:      2020-04-17 20:04:36 +0000
URL:       https://git.openjdk.java.net/tsan/commit/aeb549dc

Enable aarch64 build in jdk/tsan.

! make/autoconf/flags-cflags.m4
! make/autoconf/hotspot.m4

From github.com+10233373+jhe33 at openjdk.java.net  Mon Apr 20 04:06:58 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Mon, 20 Apr 2020 04:06:58 GMT
Subject: RFR: Enable aarch64 build in jdk/tsan.
In-Reply-To: <shRAL6KGrJK2xPM3nXhOKTO6qkWPslQyboBLuJNpeMs=.a0630b68-ece1-4864-88aa-708bb404b71c@github.com>
References: <iieIJm1u4j1yxD1WitpKQI6wP1U2TplDB2vwySPvK_A=.02e9b112-6b03-436f-92a9-eda608a0d491@github.com>
 <IuLFMsIizr1nld26zDTw57JK899B7u7J9VYjTb0_SW0=.44762cf8-fcaf-477c-8222-8d86f620f4a1@github.com>
 <qGXwG-MIBtGR4iIBIIJmiDwms_LHK9jiRNKj5eeeB2g=.12738531-0ffe-4c16-bc86-534494d61c72@github.com>
 <shRAL6KGrJK2xPM3nXhOKTO6qkWPslQyboBLuJNpeMs=.a0630b68-ece1-4864-88aa-708bb404b71c@github.com>
Message-ID: <eNr0n5yA0jGakfu-PHUWAJaZCMaghGzBBsFD9U2rCQk=.7c659a59-1087-431d-9e96-fec9fdcfe830@github.com>

On Fri, 17 Apr 2020 20:02:26 GMT, Man Cao <manc at openjdk.org> wrote:

>> This looks fine, but I would also prefer this be submitted in jdk/jdk, then we can merge that into jdk/tsan.
>
> Looks good!

I'm not sure if jdk/jdk upstream could accept these configuration, they are workaround.

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

PR: https://git.openjdk.java.net/tsan/pull/5

From github.com+10233373+jhe33 at openjdk.java.net  Mon Apr 20 08:38:24 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Mon, 20 Apr 2020 08:38:24 GMT
Subject: RFR: Add a limition to allocate object heap in aarch64 with tsan
 enabled.
Message-ID: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>

Vm will calculate max heap size according to the physical ram if user
doesn't specify the size(-Xmx). However, with tsan 48-bits memory
mapping of aarch64, it's hard to allocate the large continuous vm
space. Heap allocation often fail in this case, thus, add a limitation
at the end of the heap size calculation to prevent to exceed the
avaiable size. Currently, only support 48-bits address space.

Can reproduce the behavior by launching "java --version" in a machine
with huge physical memory.

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

Commit messages:
 - Add a limition to allocate object heap in aarch64 with tsan enabled.

Changes: https://git.openjdk.java.net/tsan/pull/6/files
 Webrev: https://webrevs.openjdk.java.net/tsan/6/webrev.00
  Stats: 17 lines in 1 file changed: 17 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/tsan/pull/6.diff
  Fetch: git fetch https://git.openjdk.java.net/tsan pull/6/head:pull/6

PR: https://git.openjdk.java.net/tsan/pull/6

From aeubanks at openjdk.java.net  Mon Apr 20 15:42:45 2020
From: aeubanks at openjdk.java.net (Arthur Eubanks)
Date: Mon, 20 Apr 2020 15:42:45 GMT
Subject: RFR: Enable aarch64 build in jdk/tsan.
In-Reply-To: <eNr0n5yA0jGakfu-PHUWAJaZCMaghGzBBsFD9U2rCQk=.7c659a59-1087-431d-9e96-fec9fdcfe830@github.com>
References: <iieIJm1u4j1yxD1WitpKQI6wP1U2TplDB2vwySPvK_A=.02e9b112-6b03-436f-92a9-eda608a0d491@github.com>
 <IuLFMsIizr1nld26zDTw57JK899B7u7J9VYjTb0_SW0=.44762cf8-fcaf-477c-8222-8d86f620f4a1@github.com>
 <qGXwG-MIBtGR4iIBIIJmiDwms_LHK9jiRNKj5eeeB2g=.12738531-0ffe-4c16-bc86-534494d61c72@github.com>
 <shRAL6KGrJK2xPM3nXhOKTO6qkWPslQyboBLuJNpeMs=.a0630b68-ece1-4864-88aa-708bb404b71c@github.com>
 <eNr0n5yA0jGakfu-PHUWAJaZCMaghGzBBsFD9U2rCQk=.7c659a59-1087-431d-9e96-fec9fdcfe830@github.com>
Message-ID: <IZQs_tusP1r8NehN1MBvR1jxBtyWUeNH--GfDJlm_Us=.00bd9bc2-20b0-4fd6-8166-02bff98f1231@github.com>

On Mon, 20 Apr 2020 04:04:33 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

>> Looks good!
>
> I'm not sure if jdk/jdk upstream could accept these configuration, they are workaround.

We've had workarounds before with clang + Linux submitted upstream, the one example that comes to mind is increasing
the inlining threshold via a compiler flag for performance since Clang is less willing to inline. But I suppose leaving
it here for now is fine.

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

PR: https://git.openjdk.java.net/tsan/pull/5

From manc at openjdk.java.net  Mon Apr 20 23:59:41 2020
From: manc at openjdk.java.net (Man Cao)
Date: Mon, 20 Apr 2020 23:59:41 GMT
Subject: RFR: Add a limition to allocate object heap in aarch64 with tsan
 enabled.
In-Reply-To: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
Message-ID: <xLjQZQsFvIKBS0YeiulwkrLr4x35QcTr7LwgXoeUZdM=.bc9b5139-c607-4dcb-a721-609b89926c35@github.com>

On Mon, 20 Apr 2020 08:29:17 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

> Vm will calculate max heap size according to the physical ram if user
> doesn't specify the size(-Xmx). However, with tsan 48-bits memory
> mapping of aarch64, it's hard to allocate the large continuous vm
> space. Heap allocation often fail in this case, thus, add a limitation
> at the end of the heap size calculation to prevent to exceed the
> avaiable size. Currently, only support 48-bits address space.
> 
> Can reproduce the behavior by launching "java --version" in a machine
> with huge physical memory.

Changes requested by manc (Reviewer).

src/hotspot/share/runtime/arguments.cpp line 1859:

> 1858:
> 1859:     // With current TSan memory mapping of 48bit aarch64, it's very hard to allocate large continuous space.
> 1860:     // Add a limitation to avoid the allocation failure in machine with huge physical RAM.

I'm not familiar with this. Is the 48bit aarch64 issue due to implementation detail of LLVM TSAN runtime? Could you add
a link to either documentation or source code for this issue?

src/hotspot/share/runtime/arguments.cpp line 1863:

> 1862:     TSAN_ONLY(
> 1863: #if defined(AARCH64)
> 1864: #define MAX_AVAILABLE_VM_SPACE_IN_AARCH64 (1024ULL * 1024ULL * 1024ULL * 16ULL) //16GB

Could the code be moved to os_linux_aarch64.cpp, by overriding os::has_allocatable_memory_limit()?
There is "reasonable_max = limit_by_allocatable_memory(reasonable_max);" above that calls
os::has_allocatable_memory_limit().

We should avoid adding architecture-specific code in arguments.cpp if possible.

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

PR: https://git.openjdk.java.net/tsan/pull/6

From github.com+10233373+jhe33 at openjdk.java.net  Tue Apr 21 05:50:34 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Tue, 21 Apr 2020 05:50:34 GMT
Subject: RFR: Add a limition to allocate object heap in aarch64 with tsan
 enabled.
In-Reply-To: <xLjQZQsFvIKBS0YeiulwkrLr4x35QcTr7LwgXoeUZdM=.bc9b5139-c607-4dcb-a721-609b89926c35@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
 <xLjQZQsFvIKBS0YeiulwkrLr4x35QcTr7LwgXoeUZdM=.bc9b5139-c607-4dcb-a721-609b89926c35@github.com>
Message-ID: <-dI2cp7jK_OIbtAWr8lBxxX4OBmQ6bili4buc3neYfU=.f124667d-1d60-465e-bdb9-1f35b0913d3b@github.com>

On Mon, 20 Apr 2020 23:41:36 GMT, Man Cao <manc at openjdk.org> wrote:

>> Vm will calculate max heap size according to the physical ram if user
>> doesn't specify the size(-Xmx). However, with tsan 48-bits memory
>> mapping of aarch64, it's hard to allocate the large continuous vm
>> space. Heap allocation often fail in this case, thus, add a limitation
>> at the end of the heap size calculation to prevent to exceed the
>> avaiable size. Currently, only support 48-bits address space.
>> 
>> Can reproduce the behavior by launching "java --version" in a machine
>> with huge physical memory.
>
> src/hotspot/share/runtime/arguments.cpp line 1859:
> 
>> 1858:
>> 1859:     // With current TSan memory mapping of 48bit aarch64, it's very hard to allocate large continuous space.
>> 1860:     // Add a limitation to avoid the allocation failure in machine with huge physical RAM.
> 
> I'm not familiar with this. Is the 48bit aarch64 issue due to implementation detail of LLVM TSAN runtime? Could you add
> a link to either documentation or source code for this issue?

struct Mapping48 {
  static const uptr kLoAppMemBeg   = 0x0000000001000ull;
  static const uptr kLoAppMemEnd   = 0x0000200000000ull;
  static const uptr kShadowBeg     = 0x0002000000000ull;
  static const uptr kShadowEnd     = 0x0004000000000ull;
  static const uptr kMetaShadowBeg = 0x0005000000000ull;
  static const uptr kMetaShadowEnd = 0x0006000000000ull;
  static const uptr kMidAppMemBeg  = 0x0aaaa00000000ull;
  static const uptr kMidAppMemEnd  = 0x0aaaf00000000ull;
  static const uptr kTraceMemBeg   = 0x0f06000000000ull;
  static const uptr kTraceMemEnd   = 0x0f06200000000ull;
  static const uptr kHeapMemBeg    = 0x0ffff00000000ull;
  static const uptr kHeapMemEnd    = 0x0ffff00000000ull;
  static const uptr kHiAppMemBeg   = 0x0ffff00000000ull;
  static const uptr kHiAppMemEnd   = 0x1000000000000ull;
  static const uptr kAppMemMsk     = 0x0fff800000000ull;
  static const uptr kAppMemXor     = 0x0000800000000ull;
  static const uptr kVdsoBeg       = 0xffff000000000ull;
};

yes, LLVM tsan defines 48bit aarch64 memory mapping as above. under this setting, openjdk is very hard to get a large
continuous vm space (roughly <20G), object heap allocation often fail in a machine which has huge physical RAM.

big object heap will be allocated in this range:
 static const uptr kMidAppMemBeg  = 0x0aaaa00000000ull;
  static const uptr kMidAppMemEnd  = 0x0aaaf00000000ull;

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

PR: https://git.openjdk.java.net/tsan/pull/6

From github.com+10233373+jhe33 at openjdk.java.net  Tue Apr 21 06:21:47 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Tue, 21 Apr 2020 06:21:47 GMT
Subject: RFR: Add a limition to allocate object heap in aarch64 with tsan
 enabled.
In-Reply-To: <xLjQZQsFvIKBS0YeiulwkrLr4x35QcTr7LwgXoeUZdM=.bc9b5139-c607-4dcb-a721-609b89926c35@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
 <xLjQZQsFvIKBS0YeiulwkrLr4x35QcTr7LwgXoeUZdM=.bc9b5139-c607-4dcb-a721-609b89926c35@github.com>
Message-ID: <CCO61ulz9ljw5HaPRk0nkMb0LussavYMS_orYi9SeFw=.411b2d09-e40b-4bb6-80d7-65b6f830835b@github.com>

On Mon, 20 Apr 2020 23:56:33 GMT, Man Cao <manc at openjdk.org> wrote:

>> Vm will calculate max heap size according to the physical ram if user
>> doesn't specify the size(-Xmx). However, with tsan 48-bits memory
>> mapping of aarch64, it's hard to allocate the large continuous vm
>> space. Heap allocation often fail in this case, thus, add a limitation
>> at the end of the heap size calculation to prevent to exceed the
>> avaiable size. Currently, only support 48-bits address space.
>> 
>> Can reproduce the behavior by launching "java --version" in a machine
>> with huge physical memory.
>
> src/hotspot/share/runtime/arguments.cpp line 1863:
> 
>> 1862:     TSAN_ONLY(
>> 1863: #if defined(AARCH64)
>> 1864: #define MAX_AVAILABLE_VM_SPACE_IN_AARCH64 (1024ULL * 1024ULL * 1024ULL * 16ULL) //16GB
> 
> Could the code be moved to os_linux_aarch64.cpp, by overriding os::has_allocatable_memory_limit()?
> There is "reasonable_max = limit_by_allocatable_memory(reasonable_max);" above that calls
> os::has_allocatable_memory_limit().
> We should avoid adding architecture-specific code in arguments.cpp if possible.

yes, I think it's possible, however it will touch X86 code that moving has_allocatable_memory_limit() to
os_linux_x86.cpp as well.

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

PR: https://git.openjdk.java.net/tsan/pull/6

From github.com+10233373+jhe33 at openjdk.java.net  Tue Apr 21 08:18:55 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Tue, 21 Apr 2020 08:18:55 GMT
Subject: RFR: Add a limition to allocate object heap in aarch64 with tsan
 enabled.
In-Reply-To: <CCO61ulz9ljw5HaPRk0nkMb0LussavYMS_orYi9SeFw=.411b2d09-e40b-4bb6-80d7-65b6f830835b@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
 <xLjQZQsFvIKBS0YeiulwkrLr4x35QcTr7LwgXoeUZdM=.bc9b5139-c607-4dcb-a721-609b89926c35@github.com>
 <CCO61ulz9ljw5HaPRk0nkMb0LussavYMS_orYi9SeFw=.411b2d09-e40b-4bb6-80d7-65b6f830835b@github.com>
Message-ID: <ok9TCLWImoGBd4NnLN21cDUEs-uoJZ1p4NW8qe4OUs0=.b51337fb-601c-4a6d-80b6-270b93a4cfd9@github.com>

On Tue, 21 Apr 2020 06:19:29 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

>> src/hotspot/share/runtime/arguments.cpp line 1863:
>> 
>>> 1862:     TSAN_ONLY(
>>> 1863: #if defined(AARCH64)
>>> 1864: #define MAX_AVAILABLE_VM_SPACE_IN_AARCH64 (1024ULL * 1024ULL * 1024ULL * 16ULL) //16GB
>> 
>> Could the code be moved to os_linux_aarch64.cpp, by overriding os::has_allocatable_memory_limit()?
>> There is "reasonable_max = limit_by_allocatable_memory(reasonable_max);" above that calls
>> os::has_allocatable_memory_limit().
>> We should avoid adding architecture-specific code in arguments.cpp if possible.
>
> yes, I think it's possible, however it will touch X86 code that moving has_allocatable_memory_limit() to
> os_linux_x86.cpp as well.

I will move it and test x86. thank you for reminding.

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

PR: https://git.openjdk.java.net/tsan/pull/6

From github.com+10233373+jhe33 at openjdk.java.net  Tue Apr 21 09:42:17 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Tue, 21 Apr 2020 09:42:17 GMT
Subject: RFR: Add a limition to allocate object heap in aarch64 with tsan
 enabled.
In-Reply-To: <ok9TCLWImoGBd4NnLN21cDUEs-uoJZ1p4NW8qe4OUs0=.b51337fb-601c-4a6d-80b6-270b93a4cfd9@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
 <xLjQZQsFvIKBS0YeiulwkrLr4x35QcTr7LwgXoeUZdM=.bc9b5139-c607-4dcb-a721-609b89926c35@github.com>
 <CCO61ulz9ljw5HaPRk0nkMb0LussavYMS_orYi9SeFw=.411b2d09-e40b-4bb6-80d7-65b6f830835b@github.com>
 <ok9TCLWImoGBd4NnLN21cDUEs-uoJZ1p4NW8qe4OUs0=.b51337fb-601c-4a6d-80b6-270b93a4cfd9@github.com>
Message-ID: <kVU_GkCWxDXIO3w9R_US7lqaxoeFP1zv7s_VDobUCho=.8655ba9e-ffdb-4e50-82bd-c89dc32e0da5@github.com>

On Tue, 21 Apr 2020 08:16:38 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

>> yes, I think it's possible, however it will touch X86 code that moving has_allocatable_memory_limit() to
>> os_linux_x86.cpp as well.
>
> I will move it and test x86. thank you for reminding.

@caoman I think it's better to put the code into os_posix.cpp with TSAN_ONLY, AARCH64_ONLY, not os_linux_aarch64.cpp,
because latter has to make multiple copies of function has_allocatable_memory_limit for archtectures. And in
os_linux.cpp, AARCH64, X86_64 specific code is allowed. what do you think?

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

PR: https://git.openjdk.java.net/tsan/pull/6

From manc at openjdk.java.net  Tue Apr 21 19:10:46 2020
From: manc at openjdk.java.net (Man Cao)
Date: Tue, 21 Apr 2020 19:10:46 GMT
Subject: RFR: Add a limition to allocate object heap in aarch64 with tsan
 enabled.
In-Reply-To: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
Message-ID: <6i7BQzt76yT7DKAluosX6Kj58q5tJQ4an2gz27nzOb0=.0677666a-0fe0-4165-97dc-37e92d205632@github.com>

On Mon, 20 Apr 2020 08:29:17 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

> Vm will calculate max heap size according to the physical ram if user
> doesn't specify the size(-Xmx). However, with tsan 48-bits memory
> mapping of aarch64, it's hard to allocate the large continuous vm
> space. Heap allocation often fail in this case, thus, add a limitation
> at the end of the heap size calculation to prevent to exceed the
> avaiable size. Currently, only support 48-bits address space.
> 
> Can reproduce the behavior by launching "java --version" in a machine
> with huge physical memory.

Changes requested by manc (Reviewer).

src/hotspot/share/runtime/arguments.cpp line 1864:

> 1863: #if defined(AARCH64)
> 1864: #define MAX_AVAILABLE_VM_SPACE_IN_AARCH64 (1024ULL * 1024ULL * 1024ULL * 16ULL) //16GB
> 1865: #define MSB_IN_AARCH64 (47) // Only support 48-bits space now.

The macros could be moved to tsan.hpp, and prefixed with "TSAN_", e.g. "TSAN_MSB_IN_AARCH64".
Or we could just use C++ const variable inline.

"__FUNCTION__" could also be used directly inline.

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

PR: https://git.openjdk.java.net/tsan/pull/6

From manc at openjdk.java.net  Tue Apr 21 19:10:46 2020
From: manc at openjdk.java.net (Man Cao)
Date: Tue, 21 Apr 2020 19:10:46 GMT
Subject: RFR: Add a limition to allocate object heap in aarch64 with tsan
 enabled.
In-Reply-To: <kVU_GkCWxDXIO3w9R_US7lqaxoeFP1zv7s_VDobUCho=.8655ba9e-ffdb-4e50-82bd-c89dc32e0da5@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
 <xLjQZQsFvIKBS0YeiulwkrLr4x35QcTr7LwgXoeUZdM=.bc9b5139-c607-4dcb-a721-609b89926c35@github.com>
 <CCO61ulz9ljw5HaPRk0nkMb0LussavYMS_orYi9SeFw=.411b2d09-e40b-4bb6-80d7-65b6f830835b@github.com>
 <ok9TCLWImoGBd4NnLN21cDUEs-uoJZ1p4NW8qe4OUs0=.b51337fb-601c-4a6d-80b6-270b93a4cfd9@github.com>
 <kVU_GkCWxDXIO3w9R_US7lqaxoeFP1zv7s_VDobUCho=.8655ba9e-ffdb-4e50-82bd-c89dc32e0da5@github.com>
Message-ID: <LX81V9jgxXexAWbfmwT34cN9KOLxS5sj_O_eYUy6Xnw=.b196047a-ac32-4e0f-82ee-703e98aa9a18@github.com>

On Tue, 21 Apr 2020 09:39:56 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

>> I will move it and test x86. thank you for reminding.
>
> @caoman I think it's better to put the code into os_posix.cpp with TSAN_ONLY, AARCH64_ONLY, not os_linux_aarch64.cpp,
> because latter has to make multiple copies of function has_allocatable_memory_limit for archtectures. And in
> os_linux.cpp, AARCH64, X86_64 specific code is allowed. what do you think?

Putting the code related to reasonable_max in os_posix.cpp sounds good.
It's better to guard it with TSAN_RUNTIME_ONLY(). We would like to keep "-XX:-ThreadSanitizer" the same as the default
JVM configuration.

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

PR: https://git.openjdk.java.net/tsan/pull/6

From manc at openjdk.java.net  Tue Apr 21 19:10:46 2020
From: manc at openjdk.java.net (Man Cao)
Date: Tue, 21 Apr 2020 19:10:46 GMT
Subject: RFR: Add a limition to allocate object heap in aarch64 with tsan
 enabled.
In-Reply-To: <-dI2cp7jK_OIbtAWr8lBxxX4OBmQ6bili4buc3neYfU=.f124667d-1d60-465e-bdb9-1f35b0913d3b@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
 <xLjQZQsFvIKBS0YeiulwkrLr4x35QcTr7LwgXoeUZdM=.bc9b5139-c607-4dcb-a721-609b89926c35@github.com>
 <-dI2cp7jK_OIbtAWr8lBxxX4OBmQ6bili4buc3neYfU=.f124667d-1d60-465e-bdb9-1f35b0913d3b@github.com>
Message-ID: <f4GgXV14FLMpCCsygVz2R160CjQ0l-pA5y58zkwCt6Y=.4647cc1a-551b-4d49-8a36-12c914e3efbe@github.com>

On Tue, 21 Apr 2020 05:48:11 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

>> src/hotspot/share/runtime/arguments.cpp line 1859:
>> 
>>> 1858:
>>> 1859:     // With current TSan memory mapping of 48bit aarch64, it's very hard to allocate large continuous space.
>>> 1860:     // Add a limitation to avoid the allocation failure in machine with huge physical RAM.
>> 
>> I'm not familiar with this. Is the 48bit aarch64 issue due to implementation detail of LLVM TSAN runtime? Could you add
>> a link to either documentation or source code for this issue?
>
> struct Mapping48 {
>   static const uptr kLoAppMemBeg   = 0x0000000001000ull;
>   static const uptr kLoAppMemEnd   = 0x0000200000000ull;
>   static const uptr kShadowBeg     = 0x0002000000000ull;
>   static const uptr kShadowEnd     = 0x0004000000000ull;
>   static const uptr kMetaShadowBeg = 0x0005000000000ull;
>   static const uptr kMetaShadowEnd = 0x0006000000000ull;
>   static const uptr kMidAppMemBeg  = 0x0aaaa00000000ull;
>   static const uptr kMidAppMemEnd  = 0x0aaaf00000000ull;
>   static const uptr kTraceMemBeg   = 0x0f06000000000ull;
>   static const uptr kTraceMemEnd   = 0x0f06200000000ull;
>   static const uptr kHeapMemBeg    = 0x0ffff00000000ull;
>   static const uptr kHeapMemEnd    = 0x0ffff00000000ull;
>   static const uptr kHiAppMemBeg   = 0x0ffff00000000ull;
>   static const uptr kHiAppMemEnd   = 0x1000000000000ull;
>   static const uptr kAppMemMsk     = 0x0fff800000000ull;
>   static const uptr kAppMemXor     = 0x0000800000000ull;
>   static const uptr kVdsoBeg       = 0xffff000000000ull;
> };
> 
> yes, LLVM tsan defines 48bit aarch64 memory mapping as above. under this setting, openjdk is very hard to get a large
> continuous vm space (roughly <20G), object heap allocation often fail in a machine which has huge physical RAM.
> big object heap will be allocated in this range:
>  static const uptr kMidAppMemBeg  = 0x0aaaa00000000ull;
>   static const uptr kMidAppMemEnd  = 0x0aaaf00000000ull;

Thanks for the explanation!

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

PR: https://git.openjdk.java.net/tsan/pull/6

From github.com+10233373+jhe33 at openjdk.java.net  Wed Apr 22 03:05:21 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Wed, 22 Apr 2020 03:05:21 GMT
Subject: RFR: Add a limition to allocate object heap in aarch64 with tsan
 enabled.
In-Reply-To: <6i7BQzt76yT7DKAluosX6Kj58q5tJQ4an2gz27nzOb0=.0677666a-0fe0-4165-97dc-37e92d205632@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
 <6i7BQzt76yT7DKAluosX6Kj58q5tJQ4an2gz27nzOb0=.0677666a-0fe0-4165-97dc-37e92d205632@github.com>
Message-ID: <Tiv2aN18s6aTutiXKxypRVYBMXlPLmPi-jycad3ats4=.ca4ca44f-c963-4d0d-a9b1-78a444da10f5@github.com>

On Tue, 21 Apr 2020 19:03:22 GMT, Man Cao <manc at openjdk.org> wrote:

>> Vm will calculate max heap size according to the physical ram if user
>> doesn't specify the size(-Xmx). However, with tsan 48-bits memory
>> mapping of aarch64, it's hard to allocate the large continuous vm
>> space. Heap allocation often fail in this case, thus, add a limitation
>> at the end of the heap size calculation to prevent to exceed the
>> avaiable size. Currently, only support 48-bits address space.
>> 
>> Can reproduce the behavior by launching "java --version" in a machine
>> with huge physical memory.
>
> src/hotspot/share/runtime/arguments.cpp line 1864:
> 
>> 1863: #if defined(AARCH64)
>> 1864: #define MAX_AVAILABLE_VM_SPACE_IN_AARCH64 (1024ULL * 1024ULL * 1024ULL * 16ULL) //16GB
>> 1865: #define MSB_IN_AARCH64 (47) // Only support 48-bits space now.
> 
> The macros could be moved to tsan.hpp, and prefixed with "TSAN_", e.g. "TSAN_MSB_IN_AARCH64".
> Or we could just use C++ const variable inline.
> 
> "__FUNCTION__" could also be used directly inline.

I just see other functions have similar style, which define and use the Macros or const variables locally, due to
merely one use place.

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

PR: https://git.openjdk.java.net/tsan/pull/6

From github.com+10233373+jhe33 at openjdk.java.net  Wed Apr 22 03:05:20 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Wed, 22 Apr 2020 03:05:20 GMT
Subject: RFR: Add a limition to allocate object heap in aarch64 with tsan
 enabled.
In-Reply-To: <LX81V9jgxXexAWbfmwT34cN9KOLxS5sj_O_eYUy6Xnw=.b196047a-ac32-4e0f-82ee-703e98aa9a18@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
 <xLjQZQsFvIKBS0YeiulwkrLr4x35QcTr7LwgXoeUZdM=.bc9b5139-c607-4dcb-a721-609b89926c35@github.com>
 <CCO61ulz9ljw5HaPRk0nkMb0LussavYMS_orYi9SeFw=.411b2d09-e40b-4bb6-80d7-65b6f830835b@github.com>
 <ok9TCLWImoGBd4NnLN21cDUEs-uoJZ1p4NW8qe4OUs0=.b51337fb-601c-4a6d-80b6-270b93a4cfd9@github.com>
 <kVU_GkCWxDXIO3w9R_US7lqaxoeFP1zv7s_VDobUCho=.8655ba9e-ffdb-4e50-82bd-c89dc32e0da5@github.com>
 <LX81V9jgxXexAWbfmwT34cN9KOLxS5sj_O_eYUy6Xnw=.b196047a-ac32-4e0f-82ee-703e98aa9a18@github.com>
Message-ID: <1gPvUmVp8qIf5UYHpA3lQIoXREfDIxFSDXILmXEnHww=.7d430c22-8332-42b3-89e9-33780165e6d8@github.com>

On Tue, 21 Apr 2020 18:53:46 GMT, Man Cao <manc at openjdk.org> wrote:

>> @caoman I think it's better to put the code into os_posix.cpp with TSAN_ONLY, AARCH64_ONLY, not os_linux_aarch64.cpp,
>> because latter has to make multiple copies of function has_allocatable_memory_limit for archtectures. And in
>> os_linux.cpp, AARCH64, X86_64 specific code is allowed. what do you think?
>
> Putting the code related to reasonable_max in os_posix.cpp sounds good.
> It's better to guard it with TSAN_RUNTIME_ONLY(). We would like to keep "-XX:-ThreadSanitizer" the same as the default
> JVM configuration.

no, I have to use TSAN_ONLY, otherwise, building java images will fail, where jvm has been used without
+ThreadSanitizer. In addition, some scripts like jtreg also use "java --version" or other commands without
+ThreadSanitizer to do some jobs.

I just see other functions has similar style, which define and use the Macros or const variables locally, due to merely
one use place.

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

PR: https://git.openjdk.java.net/tsan/pull/6

From manc at openjdk.java.net  Wed Apr 22 22:09:23 2020
From: manc at openjdk.java.net (Man Cao)
Date: Wed, 22 Apr 2020 22:09:23 GMT
Subject: RFR: Add a limition to allocate object heap in aarch64 with tsan
 enabled.
In-Reply-To: <1gPvUmVp8qIf5UYHpA3lQIoXREfDIxFSDXILmXEnHww=.7d430c22-8332-42b3-89e9-33780165e6d8@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
 <xLjQZQsFvIKBS0YeiulwkrLr4x35QcTr7LwgXoeUZdM=.bc9b5139-c607-4dcb-a721-609b89926c35@github.com>
 <CCO61ulz9ljw5HaPRk0nkMb0LussavYMS_orYi9SeFw=.411b2d09-e40b-4bb6-80d7-65b6f830835b@github.com>
 <ok9TCLWImoGBd4NnLN21cDUEs-uoJZ1p4NW8qe4OUs0=.b51337fb-601c-4a6d-80b6-270b93a4cfd9@github.com>
 <kVU_GkCWxDXIO3w9R_US7lqaxoeFP1zv7s_VDobUCho=.8655ba9e-ffdb-4e50-82bd-c89dc32e0da5@github.com>
 <LX81V9jgxXexAWbfmwT34cN9KOLxS5sj_O_eYUy6Xnw=.b196047a-ac32-4e0f-82ee-703e98aa9a18@github.com>
 <1gPvUmVp8qIf5UYHpA3lQIoXREfDIxFSDXILmXEnHww=.7d430c22-8332-42b3-89e9-33780165e6d8@github.com>
Message-ID: <XBHmlFB_RKLVYx9UeWCpj-oYkf6xVoIbzmK0cneczUA=.8366935d-4a7f-400e-9dd4-5ef39496bfac@github.com>

On Wed, 22 Apr 2020 02:25:03 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

>> Putting the code related to reasonable_max in os_posix.cpp sounds good.
>> It's better to guard it with TSAN_RUNTIME_ONLY(). We would like to keep "-XX:-ThreadSanitizer" the same as the default
>> JVM configuration.
>
> no, I have to use TSAN_ONLY, otherwise, building java images will fail, where jvm has been used without
> +ThreadSanitizer. In addition, some scripts like jtreg also use "java --version" or other commands without
> +ThreadSanitizer to do some jobs.  I just see other functions has similar style, which define and use the Macros or
> const variables locally, due to merely one use place.

Thanks for explaining. Let's keep using TSAN_ONLY.

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

PR: https://git.openjdk.java.net/tsan/pull/6

From manc at openjdk.java.net  Wed Apr 22 22:15:11 2020
From: manc at openjdk.java.net (Man Cao)
Date: Wed, 22 Apr 2020 22:15:11 GMT
Subject: RFR: Add a limition to allocate object heap in aarch64 with tsan
 enabled.
In-Reply-To: <Tiv2aN18s6aTutiXKxypRVYBMXlPLmPi-jycad3ats4=.ca4ca44f-c963-4d0d-a9b1-78a444da10f5@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
 <6i7BQzt76yT7DKAluosX6Kj58q5tJQ4an2gz27nzOb0=.0677666a-0fe0-4165-97dc-37e92d205632@github.com>
 <Tiv2aN18s6aTutiXKxypRVYBMXlPLmPi-jycad3ats4=.ca4ca44f-c963-4d0d-a9b1-78a444da10f5@github.com>
Message-ID: <Scy5wfPjvlsEQ5UEkLSWdU4akkRHuyG2ZjmMR3GtH0I=.e7a173d5-357e-4dbd-92e8-8faccd0d0c62@github.com>

On Wed, 22 Apr 2020 03:02:59 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

>> src/hotspot/share/runtime/arguments.cpp line 1864:
>> 
>>> 1863: #if defined(AARCH64)
>>> 1864: #define MAX_AVAILABLE_VM_SPACE_IN_AARCH64 (1024ULL * 1024ULL * 1024ULL * 16ULL) //16GB
>>> 1865: #define MSB_IN_AARCH64 (47) // Only support 48-bits space now.
>> 
>> The macros could be moved to tsan.hpp, and prefixed with "TSAN_", e.g. "TSAN_MSB_IN_AARCH64".
>> Or we could just use C++ const variable inline.
>> 
>> "__FUNCTION__" could also be used directly inline.
>
> I just see other functions have similar style, which define and use the Macros or const variables locally, due to
> merely one use place.

Those are likely from ancient code. Upstream OpenJDK is also moving away from that style.
See
https://wiki.openjdk.java.net/display/HotSpot/StyleGuide (search "Macros").

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

PR: https://git.openjdk.java.net/tsan/pull/6

From github.com+10233373+jhe33 at openjdk.java.net  Thu Apr 23 11:27:42 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Thu, 23 Apr 2020 11:27:42 GMT
Subject: [Rev 01] RFR: Add a limition to allocate object heap in aarch64
 with tsan enabled.
In-Reply-To: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
Message-ID: <jvULOtlNX5cRd77biEnnxn-wq1dkft-ijrnWCZUiW_Y=.bde7c2d2-7814-4682-87c6-e01e8a93b8a8@github.com>

> Vm will calculate max heap size according to the physical ram if user
> doesn't specify the size(-Xmx). However, with tsan 48-bits memory
> mapping of aarch64, it's hard to allocate the large continuous vm
> space. Heap allocation often fail in this case, thus, add a limitation
> at the end of the heap size calculation to prevent to exceed the
> avaiable size. Currently, only support 48-bits address space.
> 
> Can reproduce the behavior by launching "java --version" in a machine
> with huge physical memory.

Jie He has refreshed the contents of this pull request, and previous commits have been removed. The incremental views
will show differences compared to the previous content of the PR. The pull request contains one new commit since the
last revision:

  Add a limit to allocate object heap in aarch64 with tsan enabled.
  
  Vm will calculate max heap size according to the physical ram if user
  doesn't specify the size(-Xmx). However, with tsan 48-bits memory
  mapping of aarch64, it's hard to allocate the large continuous vm
  space. Heap allocation often fail in this case, thus, add a limit
  at os::has_allocatable_memory_limit to prevent to exceed the
  avaiable size. Currently, only support 48-bits address space.
  
  Can reproduce the behavior by launching "java --version" in a machine
  with huge physical memory.
  
  Change-Id: Iabff934444091436bc657978e2e947c270398f29

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

Changes:
  - all: https://git.openjdk.java.net/tsan/pull/6/files
  - new: https://git.openjdk.java.net/tsan/pull/6/files/5693cbc9..a2c45941

Webrevs:
 - full: https://webrevs.openjdk.java.net/tsan/6/webrev.01
 - incr: https://webrevs.openjdk.java.net/tsan/6/webrev.00-01

  Stats: 39 lines in 2 files changed: 22 ins; 17 del; 0 mod
  Patch: https://git.openjdk.java.net/tsan/pull/6.diff
  Fetch: git fetch https://git.openjdk.java.net/tsan pull/6/head:pull/6

PR: https://git.openjdk.java.net/tsan/pull/6

From github.com+10233373+jhe33 at openjdk.java.net  Fri Apr 24 02:07:12 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Fri, 24 Apr 2020 02:07:12 GMT
Subject: [Rev 01] RFR: Add a limition to allocate object heap in aarch64
 with tsan enabled.
In-Reply-To: <6i7BQzt76yT7DKAluosX6Kj58q5tJQ4an2gz27nzOb0=.0677666a-0fe0-4165-97dc-37e92d205632@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
 <6i7BQzt76yT7DKAluosX6Kj58q5tJQ4an2gz27nzOb0=.0677666a-0fe0-4165-97dc-37e92d205632@github.com>
Message-ID: <enXd_NRvfGzIK2z4VLmHaq1tzjjWGUFHQmrdA6qCpgw=.e8acc62b-7ff6-4218-8053-d9300df85a6e@github.com>

On Tue, 21 Apr 2020 19:08:31 GMT, Man Cao <manc at openjdk.org> wrote:

>> Jie He has refreshed the contents of this pull request, and previous commits have been removed. The incremental views
>> will show differences compared to the previous content of the PR. The pull request contains one new commit since the
>> last revision:
>>   Add a limit to allocate object heap in aarch64 with tsan enabled.
>>   
>>   Vm will calculate max heap size according to the physical ram if user
>>   doesn't specify the size(-Xmx). However, with tsan 48-bits memory
>>   mapping of aarch64, it's hard to allocate the large continuous vm
>>   space. Heap allocation often fail in this case, thus, add a limit
>>   at os::has_allocatable_memory_limit to prevent to exceed the
>>   avaiable size. Currently, only support 48-bits address space.
>>   
>>   Can reproduce the behavior by launching "java --version" in a machine
>>   with huge physical memory.
>>   
>>   Change-Id: Iabff934444091436bc657978e2e947c270398f29
>
> Changes requested by manc (Reviewer).

RFR, I updated the code, thank you.

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

PR: https://git.openjdk.java.net/tsan/pull/6

From manc at openjdk.java.net  Fri Apr 24 04:49:10 2020
From: manc at openjdk.java.net (Man Cao)
Date: Fri, 24 Apr 2020 04:49:10 GMT
Subject: [Rev 01] RFR: Add a limition to allocate object heap in aarch64
 with tsan enabled.
In-Reply-To: <jvULOtlNX5cRd77biEnnxn-wq1dkft-ijrnWCZUiW_Y=.bde7c2d2-7814-4682-87c6-e01e8a93b8a8@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
 <jvULOtlNX5cRd77biEnnxn-wq1dkft-ijrnWCZUiW_Y=.bde7c2d2-7814-4682-87c6-e01e8a93b8a8@github.com>
Message-ID: <PJjhm9CgumUM0z_8b_ZNBtqmjbbuZpNVM3foT8ZJFQc=.6e55eef6-44a4-4a5f-a5a7-ce222e5622fe@github.com>

On Thu, 23 Apr 2020 11:27:42 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

>> Vm will calculate max heap size according to the physical ram if user
>> doesn't specify the size(-Xmx). However, with tsan 48-bits memory
>> mapping of aarch64, it's hard to allocate the large continuous vm
>> space. Heap allocation often fail in this case, thus, add a limitation
>> at the end of the heap size calculation to prevent to exceed the
>> avaiable size. Currently, only support 48-bits address space.
>> 
>> Can reproduce the behavior by launching "java --version" in a machine
>> with huge physical memory.
>
> Jie He has refreshed the contents of this pull request, and previous commits have been removed. The incremental views
> will show differences compared to the previous content of the PR. The pull request contains one new commit since the
> last revision:
>   Add a limit to allocate object heap in aarch64 with tsan enabled.
>   
>   Vm will calculate max heap size according to the physical ram if user
>   doesn't specify the size(-Xmx). However, with tsan 48-bits memory
>   mapping of aarch64, it's hard to allocate the large continuous vm
>   space. Heap allocation often fail in this case, thus, add a limit
>   at os::has_allocatable_memory_limit to prevent to exceed the
>   avaiable size. Currently, only support 48-bits address space.
>   
>   Can reproduce the behavior by launching "java --version" in a machine
>   with huge physical memory.
>   
>   Change-Id: Iabff934444091436bc657978e2e947c270398f29

Changes requested by manc (Reviewer).

src/hotspot/os/posix/os_posix.cpp line 541:

> 540:
> 541: #if defined(INCLUDE_TSAN) && defined(AARCH64)
> 542:   // Current TSAN memory mapping for 48bits aarch64, a large continous space could be allocated between

INCLUDE_TSAN is always defined, it has a value of 0 or 1 (see make/hotspot/lib/JvmFeatures.gmk).
Probably "#if INCLUDE_TSAN && defined(AARCH64)".

src/hotspot/os/posix/os_posix.cpp line 550:

> 549:   u8 vm_addr_u8 = reinterpret_cast<u8>(&__FUNCTION__);
> 550:   // High address in 48bits user space is like 0x0000ffffxxxxxxxx.
> 551:   assert((vm_addr_u8  >> msb_in_aarch64) == 0x1, "warning: allocation could fail in non 48-bit address space.");

Is this based on kHiAppMemBeg = 0x0ffff00000000ull and kHiAppMemEnd = 0x1000000000000ull?
Mentioning these two constants like kMidAppMemBeg and kMidAppMemEnd above would be a more helpful comment.

src/hotspot/os/posix/os_posix.cpp line 545:

> 544:   // Take 16GB here for safer allocation.
> 545:   const julong max_avail_vmspace = 1024ULL * 1024ULL * 1024ULL * 16ULL; // 16GB
> 546:   const u8 msb_in_aarch64 = 47; //Only support 48-bits space now.

"16ULL * G" is simpler.

src/hotspot/os/posix/os_posix.cpp line 546:

> 545:   const julong max_avail_vmspace = 1024ULL * 1024ULL * 1024ULL * 16ULL; // 16GB
> 546:   const u8 msb_in_aarch64 = 47; //Only support 48-bits space now.
> 547:

Nit: need one space after //.

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

PR: https://git.openjdk.java.net/tsan/pull/6

From github.com+10233373+jhe33 at openjdk.java.net  Fri Apr 24 05:43:28 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Fri, 24 Apr 2020 05:43:28 GMT
Subject: [Rev 01] RFR: Add a limition to allocate object heap in aarch64
 with tsan enabled.
In-Reply-To: <PJjhm9CgumUM0z_8b_ZNBtqmjbbuZpNVM3foT8ZJFQc=.6e55eef6-44a4-4a5f-a5a7-ce222e5622fe@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
 <jvULOtlNX5cRd77biEnnxn-wq1dkft-ijrnWCZUiW_Y=.bde7c2d2-7814-4682-87c6-e01e8a93b8a8@github.com>
 <PJjhm9CgumUM0z_8b_ZNBtqmjbbuZpNVM3foT8ZJFQc=.6e55eef6-44a4-4a5f-a5a7-ce222e5622fe@github.com>
Message-ID: <9bg6XvSBX3rbCwItZ1UEivrC6352lkVC3vRCMFwg17g=.3494e792-8cea-4d96-8339-834c9c7c4abe@github.com>

On Fri, 24 Apr 2020 04:36:44 GMT, Man Cao <manc at openjdk.org> wrote:

>> Jie He has refreshed the contents of this pull request, and previous commits have been removed. The incremental views
>> will show differences compared to the previous content of the PR. The pull request contains one new commit since the
>> last revision:
>>   Add a limit to allocate object heap in aarch64 with tsan enabled.
>>   
>>   Vm will calculate max heap size according to the physical ram if user
>>   doesn't specify the size(-Xmx). However, with tsan 48-bits memory
>>   mapping of aarch64, it's hard to allocate the large continuous vm
>>   space. Heap allocation often fail in this case, thus, add a limit
>>   at os::has_allocatable_memory_limit to prevent to exceed the
>>   avaiable size. Currently, only support 48-bits address space.
>>   
>>   Can reproduce the behavior by launching "java --version" in a machine
>>   with huge physical memory.
>>   
>>   Change-Id: Iabff934444091436bc657978e2e947c270398f29
>
> src/hotspot/os/posix/os_posix.cpp line 550:
> 
>> 549:   u8 vm_addr_u8 = reinterpret_cast<u8>(&__FUNCTION__);
>> 550:   // High address in 48bits user space is like 0x0000ffffxxxxxxxx.
>> 551:   assert((vm_addr_u8  >> msb_in_aarch64) == 0x1, "warning: allocation could fail in non 48-bit address space.");
> 
> Is this based on kHiAppMemBeg = 0x0ffff00000000ull and kHiAppMemEnd = 0x1000000000000ull?
> Mentioning these two constants like kMidAppMemBeg and kMidAppMemEnd above would be a more helpful comment.

dynamic libraries will be loaded between kHiAppMemBeg and kHiAppMemEnd . it makes hard to allocate large continuous
space.

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

PR: https://git.openjdk.java.net/tsan/pull/6

From github.com+10233373+jhe33 at openjdk.java.net  Fri Apr 24 05:43:27 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Fri, 24 Apr 2020 05:43:27 GMT
Subject: [Rev 02] RFR: Add a limition to allocate object heap in aarch64
 with tsan enabled.
In-Reply-To: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
Message-ID: <9TRcs6shLKJ7ikNGaDsim-8hl_rrVOVjMkWqLAKzhNU=.541ecc71-989c-4d12-a0c3-8cb892b814f9@github.com>

> Vm will calculate max heap size according to the physical ram if user
> doesn't specify the size(-Xmx). However, with tsan 48-bits memory
> mapping of aarch64, it's hard to allocate the large continuous vm
> space. Heap allocation often fail in this case, thus, add a limitation
> at the end of the heap size calculation to prevent to exceed the
> avaiable size. Currently, only support 48-bits address space.
> 
> Can reproduce the behavior by launching "java --version" in a machine
> with huge physical memory.

Jie He has refreshed the contents of this pull request, and previous commits have been removed. The incremental views
will show differences compared to the previous content of the PR. The pull request contains one new commit since the
last revision:

  Add a limit to allocate object heap in aarch64 with tsan enabled.
  
  Vm will calculate max heap size according to the physical ram if user
  doesn't specify the size(-Xmx). However, with tsan 48-bits memory
  mapping of aarch64, it's hard to allocate the large continuous vm
  space. Heap allocation often fail in this case, thus, add a limit
  at os::has_allocatable_memory_limit to prevent to exceed the
  avaiable size. Currently, only support 48-bits address space.
  
  Can reproduce the behavior by launching "java --version" in a machine
  with huge physical memory.
  
  Change-Id: Iabff934444091436bc657978e2e947c270398f29

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

Changes:
  - all: https://git.openjdk.java.net/tsan/pull/6/files
  - new: https://git.openjdk.java.net/tsan/pull/6/files/a2c45941..a88d78bb

Webrevs:
 - full: https://webrevs.openjdk.java.net/tsan/6/webrev.02
 - incr: https://webrevs.openjdk.java.net/tsan/6/webrev.01-02

  Stats: 4 lines in 1 file changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/tsan/pull/6.diff
  Fetch: git fetch https://git.openjdk.java.net/tsan pull/6/head:pull/6

PR: https://git.openjdk.java.net/tsan/pull/6

From github.com+10233373+jhe33 at openjdk.java.net  Fri Apr 24 05:54:30 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Fri, 24 Apr 2020 05:54:30 GMT
Subject: [Rev 01] RFR: Add a limition to allocate object heap in aarch64
 with tsan enabled.
In-Reply-To: <9bg6XvSBX3rbCwItZ1UEivrC6352lkVC3vRCMFwg17g=.3494e792-8cea-4d96-8339-834c9c7c4abe@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
 <jvULOtlNX5cRd77biEnnxn-wq1dkft-ijrnWCZUiW_Y=.bde7c2d2-7814-4682-87c6-e01e8a93b8a8@github.com>
 <PJjhm9CgumUM0z_8b_ZNBtqmjbbuZpNVM3foT8ZJFQc=.6e55eef6-44a4-4a5f-a5a7-ce222e5622fe@github.com>
 <9bg6XvSBX3rbCwItZ1UEivrC6352lkVC3vRCMFwg17g=.3494e792-8cea-4d96-8339-834c9c7c4abe@github.com>
Message-ID: <dIRZDe-GpV_wWgumysmpPuYKbBqzxWp8oMl_nMdsxL0=.a14c7305-d174-4809-982a-35a480bbe941@github.com>

On Fri, 24 Apr 2020 05:37:10 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

>> src/hotspot/os/posix/os_posix.cpp line 550:
>> 
>>> 549:   u8 vm_addr_u8 = reinterpret_cast<u8>(&__FUNCTION__);
>>> 550:   // High address in 48bits user space is like 0x0000ffffxxxxxxxx.
>>> 551:   assert((vm_addr_u8  >> msb_in_aarch64) == 0x1, "warning: allocation could fail in non 48-bit address space.");
>> 
>> Is this based on kHiAppMemBeg = 0x0ffff00000000ull and kHiAppMemEnd = 0x1000000000000ull?
>> Mentioning these two constants like kMidAppMemBeg and kMidAppMemEnd above would be a more helpful comment.
>
> dynamic libraries will be loaded between kHiAppMemBeg and kHiAppMemEnd . it makes hard to allocate large continuous
> space.

oh, I see what you mean.

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

PR: https://git.openjdk.java.net/tsan/pull/6

From github.com+10233373+jhe33 at openjdk.java.net  Fri Apr 24 06:01:32 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Fri, 24 Apr 2020 06:01:32 GMT
Subject: [Rev 03] RFR: Add a limition to allocate object heap in aarch64
 with tsan enabled.
In-Reply-To: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
Message-ID: <qVzoVmRpM2Ti_ifillMvsDzZZZqKGIbR8Zy2WR9RFxk=.28721c11-c527-4f24-ac2e-8358854cc017@github.com>

> Vm will calculate max heap size according to the physical ram if user
> doesn't specify the size(-Xmx). However, with tsan 48-bits memory
> mapping of aarch64, it's hard to allocate the large continuous vm
> space. Heap allocation often fail in this case, thus, add a limitation
> at the end of the heap size calculation to prevent to exceed the
> avaiable size. Currently, only support 48-bits address space.
> 
> Can reproduce the behavior by launching "java --version" in a machine
> with huge physical memory.

Jie He has refreshed the contents of this pull request, and previous commits have been removed. The incremental views
will show differences compared to the previous content of the PR. The pull request contains one new commit since the
last revision:

  Add a limit to allocate object heap in aarch64 with tsan enabled.
  
  Vm will calculate max heap size according to the physical ram if user
  doesn't specify the size(-Xmx). However, with tsan 48-bits memory
  mapping of aarch64, it's hard to allocate the large continuous vm
  space. Heap allocation often fail in this case, thus, add a limit
  at os::has_allocatable_memory_limit to prevent to exceed the
  avaiable size. Currently, only support 48-bits address space.
  
  Can reproduce the behavior by launching "java --version" in a machine
  with huge physical memory.
  
  Change-Id: Iabff934444091436bc657978e2e947c270398f29

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

Changes:
  - all: https://git.openjdk.java.net/tsan/pull/6/files
  - new: https://git.openjdk.java.net/tsan/pull/6/files/a88d78bb..0ff7ead6

Webrevs:
 - full: https://webrevs.openjdk.java.net/tsan/6/webrev.03
 - incr: https://webrevs.openjdk.java.net/tsan/6/webrev.02-03

  Stats: 3 lines in 1 file changed: 1 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/tsan/pull/6.diff
  Fetch: git fetch https://git.openjdk.java.net/tsan pull/6/head:pull/6

PR: https://git.openjdk.java.net/tsan/pull/6

From jdanek at redhat.com  Fri Apr 24 11:52:14 2020
From: jdanek at redhat.com (=?UTF-8?Q?Jiri_Dan=C4=9Bk?=)
Date: Fri, 24 Apr 2020 13:52:14 +0200
Subject: Running Apache Artemis with jdk-tsan;
 some ready-to-use TSAN .supp files?
Message-ID: <CA+S-PULmxtaim=+0ZjXTKqbsHMGVq4AoVVnuk7F8MLcN5jHo1g@mail.gmail.com>

Hello folks,

I moved from trivial hello-world programs to running something real under
jdk-tsan. I got a lot of races reported, and I am trying to sort through
them now. I used clang 9 to compile jdk-tsan.

The software under test is https://github.com/apache/activemq-artemis

I went through the reports, and I sorted it into six categories. (I did not
go through everything that was reported yet. Depending how much
functionality I exercise, the reported races are different.)

1) races in C++ code of the JDK, not my concern
2) races in classes under java.util.concurrent in the JDK, probably OK
because Java memory model is defined for racey programs too, and the
authors hopefully knew what they were doing
3) races in 3rd party code (jetty), which I am going to ignore for now
4) races in 1st party code in counters and timers, which I think are
harmless, because something will synchronize the memory eventually, and we
will learn of the timeout, or the counters will be somewhat off, but we
don't lose performance, so it is a worthwhile tradeoff.
5) races in 1st party custom concurrent structures (there is a custom hash
map) which are hopefully harmless as in 2)
6) races in 1st party regular code, which are worth investigating, and I
think that it is best to prioritize races with write in constructor and
read or write somewhere else, because that can lead to
partially-constructed objects, which are supposed to be a big problem

Is my thinking here correct? Has anyone already started writing TSan
suppression files for things in the JDK and standard library that can be
safely ignored by application programmers?

I hoped to be able to search for the TSan warnings and see how other people
were resolving them, but it looks like jdk-tsan does not have that many
users yet.

Thanks!

My categorization and analysis is the following. The section numbers are
just to order things, they are not related to the list above.

# 01.java
https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-01-java

Reports from JDK itself, coming from
jdk-tsan/src/java.base/share/native/libzip/zip_util.c. I am not going to
worry about what JDK itself is doing.

# 02.java
https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-02-java

Races reported on JDK's synchronization objects, here it is in
java.util.concurrent.locks.AbstractOwnableSynchronizer.setExclusiveOwnerThread
/ getExclusiveOwnerThread

# 03.java
https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-03-java

Races from org.eclipse.jetty. Some of them look potentially harmful, for
example between java.util.ArrayDeque.pollFirst and
java.util.ArrayDeque.<init>. I am on x86_64, so I need not worry too much
(I hope), but AFAIK if I do not synchronize between initializing an object
and using it, it may happen that the thread using it sees a partially
initialized object. Meaning that any races with .<init> should be probably
the first to investigate?

Anyways, Jetty is just a 3rd party dependency, not a priority overall for
me.

# 10.java
https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-10-java

Some races in the 1st party code, including races with writes in
constructor. If I remember correctly, the code is (in some places) using
Executors that are running only one thread at a time. If TSan reports a
race from such code, that would mean that even though there is no
parallelism present, there may be memory synchronization missing. So even
if I find some situations like this, there can be real bugs.

At the end of this listing, there are some races on java.util.HashMap and
such. The class is not thread safe, so this should not be happening and
that could be a possible bug too.

# 11.java
https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-11-java

Races on java.util.concurrent.SynchronousQueue,
java.util.concurrent.locks.ReentrantReadWriteLock,
java.util.concurrent.ScheduledThreadPoolExecutor and other synchronization
objects in the JDK, similar to 02.java. AFAIK it is ok to have races here,
because people writing this knew what they were doing, racey code can be
faster, the code is widely used and tested, therefore should not be cause
of bugs. These reports could be safely suppressed in TSan suppression file.

# 12.java, # 14.java, # 18.java
https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-12-java
https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-14-java
https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-18-java

Same as 02.java and 11.java before. This time, it is
java.util.concurrent.locks.AbstractQueuedSynchronizer and
java.util.concurrent.locks.ReentrantReadWriteLock.

# 13.java, # 17.java
https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-13-java
https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-17-java

Races in 1st party code, probably same treatment as in 10.java.

# 15.java
https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-15-java

Race in 1st party code on
org.apache.activemq.artemis.core.journal.impl.JournalTransaction.internalgetCounter.
This is supposed to use atomic ints, so should be fine, but maybe there is
something off there. Could be that the software is fine with not having
accurate counters and trade that for avoiding synchronization cost.

# 16.java
https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-16-java

Race in a custom implementation of a concurrent hash map, in
org.apache.activemq.artemis.utils.collections.ConcurrentLongHashMap. Could
be fine, some races can allow for more performant code, and Java memory
model is supposed to be defined even for racy programs. I may try to
investigate, but I don't expect to find a problem. The code is in heavy use
and seems to work.

# 19.java
https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-19-java

Race in 1st party code,
org.apache.activemq.artemis.utils.critical.CriticalComponentImpl.isExpired.
This is probably again a case of trying to avoid synchronization, same as
the counters before, given that something else will eventually synchronize
the memory and we will learn about the timer expiration eventually. I think
it is fine, and cannot imagine "fixing" this, without making things more
complicated, or potentially slower due to more synchronization. It would be
hard to prove that this is worth fixing and that the fixes are not too
expensive.
-- 
Mit freundlichen Gr??en / Kind regards
Jiri Dan?k

From manc at google.com  Fri Apr 24 18:47:26 2020
From: manc at google.com (Man Cao)
Date: Fri, 24 Apr 2020 11:47:26 -0700
Subject: Running Apache Artemis with jdk-tsan; some ready-to-use TSAN
 .supp files?
In-Reply-To: <CA+S-PULmxtaim=+0ZjXTKqbsHMGVq4AoVVnuk7F8MLcN5jHo1g@mail.gmail.com>
References: <CA+S-PULmxtaim=+0ZjXTKqbsHMGVq4AoVVnuk7F8MLcN5jHo1g@mail.gmail.com>
Message-ID: <CA+w6HxawEAL4ssgNtfxuscxE8UFQJrSLU46q4BBhe4equ899pg@mail.gmail.com>

Yes. We do have an internal list of suppressed races.
We will publish those suppressed races from JDK library and 3rd party code
to the Github repository.

-Man


On Fri, Apr 24, 2020 at 4:55 AM Jiri Dan?k <jdanek at redhat.com> wrote:

> Hello folks,
>
> I moved from trivial hello-world programs to running something real under
> jdk-tsan. I got a lot of races reported, and I am trying to sort through
> them now. I used clang 9 to compile jdk-tsan.
>
> The software under test is https://github.com/apache/activemq-artemis
>
> I went through the reports, and I sorted it into six categories. (I did not
> go through everything that was reported yet. Depending how much
> functionality I exercise, the reported races are different.)
>
> 1) races in C++ code of the JDK, not my concern
> 2) races in classes under java.util.concurrent in the JDK, probably OK
> because Java memory model is defined for racey programs too, and the
> authors hopefully knew what they were doing
> 3) races in 3rd party code (jetty), which I am going to ignore for now
> 4) races in 1st party code in counters and timers, which I think are
> harmless, because something will synchronize the memory eventually, and we
> will learn of the timeout, or the counters will be somewhat off, but we
> don't lose performance, so it is a worthwhile tradeoff.
> 5) races in 1st party custom concurrent structures (there is a custom hash
> map) which are hopefully harmless as in 2)
> 6) races in 1st party regular code, which are worth investigating, and I
> think that it is best to prioritize races with write in constructor and
> read or write somewhere else, because that can lead to
> partially-constructed objects, which are supposed to be a big problem
>
> Is my thinking here correct? Has anyone already started writing TSan
> suppression files for things in the JDK and standard library that can be
> safely ignored by application programmers?
>
> I hoped to be able to search for the TSan warnings and see how other people
> were resolving them, but it looks like jdk-tsan does not have that many
> users yet.
>
> Thanks!
>
> My categorization and analysis is the following. The section numbers are
> just to order things, they are not related to the list above.
>
> # 01.java
>
> https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-01-java
>
> Reports from JDK itself, coming from
> jdk-tsan/src/java.base/share/native/libzip/zip_util.c. I am not going to
> worry about what JDK itself is doing.
>
> # 02.java
>
> https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-02-java
>
> Races reported on JDK's synchronization objects, here it is in
>
> java.util.concurrent.locks.AbstractOwnableSynchronizer.setExclusiveOwnerThread
> / getExclusiveOwnerThread
>
> # 03.java
>
> https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-03-java
>
> Races from org.eclipse.jetty. Some of them look potentially harmful, for
> example between java.util.ArrayDeque.pollFirst and
> java.util.ArrayDeque.<init>. I am on x86_64, so I need not worry too much
> (I hope), but AFAIK if I do not synchronize between initializing an object
> and using it, it may happen that the thread using it sees a partially
> initialized object. Meaning that any races with .<init> should be probably
> the first to investigate?
>
> Anyways, Jetty is just a 3rd party dependency, not a priority overall for
> me.
>
> # 10.java
>
> https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-10-java
>
> Some races in the 1st party code, including races with writes in
> constructor. If I remember correctly, the code is (in some places) using
> Executors that are running only one thread at a time. If TSan reports a
> race from such code, that would mean that even though there is no
> parallelism present, there may be memory synchronization missing. So even
> if I find some situations like this, there can be real bugs.
>
> At the end of this listing, there are some races on java.util.HashMap and
> such. The class is not thread safe, so this should not be happening and
> that could be a possible bug too.
>
> # 11.java
>
> https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-11-java
>
> Races on java.util.concurrent.SynchronousQueue,
> java.util.concurrent.locks.ReentrantReadWriteLock,
> java.util.concurrent.ScheduledThreadPoolExecutor and other synchronization
> objects in the JDK, similar to 02.java. AFAIK it is ok to have races here,
> because people writing this knew what they were doing, racey code can be
> faster, the code is widely used and tested, therefore should not be cause
> of bugs. These reports could be safely suppressed in TSan suppression file.
>
> # 12.java, # 14.java, # 18.java
>
> https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-12-java
>
> https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-14-java
>
> https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-18-java
>
> Same as 02.java and 11.java before. This time, it is
> java.util.concurrent.locks.AbstractQueuedSynchronizer and
> java.util.concurrent.locks.ReentrantReadWriteLock.
>
> # 13.java, # 17.java
>
> https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-13-java
>
> https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-17-java
>
> Races in 1st party code, probably same treatment as in 10.java.
>
> # 15.java
>
> https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-15-java
>
> Race in 1st party code on
>
> org.apache.activemq.artemis.core.journal.impl.JournalTransaction.internalgetCounter.
> This is supposed to use atomic ints, so should be fine, but maybe there is
> something off there. Could be that the software is fine with not having
> accurate counters and trade that for avoiding synchronization cost.
>
> # 16.java
>
> https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-16-java
>
> Race in a custom implementation of a concurrent hash map, in
> org.apache.activemq.artemis.utils.collections.ConcurrentLongHashMap. Could
> be fine, some races can allow for more performant code, and Java memory
> model is supposed to be defined even for racy programs. I may try to
> investigate, but I don't expect to find a problem. The code is in heavy use
> and seems to work.
>
> # 19.java
>
> https://gist.github.com/jiridanek/279988855ca9d29d99c7218d8ca681f4#file-19-java
>
> Race in 1st party code,
> org.apache.activemq.artemis.utils.critical.CriticalComponentImpl.isExpired.
> This is probably again a case of trying to avoid synchronization, same as
> the counters before, given that something else will eventually synchronize
> the memory and we will learn about the timer expiration eventually. I think
> it is fine, and cannot imagine "fixing" this, without making things more
> complicated, or potentially slower due to more synchronization. It would be
> hard to prove that this is worth fixing and that the fixes are not too
> expensive.
> --
> Mit freundlichen Gr??en / Kind regards
> Jiri Dan?k
>

From github.com+10233373+jhe33 at openjdk.java.net  Sun Apr 26 12:15:18 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Sun, 26 Apr 2020 12:15:18 GMT
Subject: [Rev 04] RFR: Add a limition to allocate object heap in aarch64
 with tsan enabled.
In-Reply-To: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
Message-ID: <2xx4RxcvqISfMcV3i-j0hGWEYBylrh7ClQFHXPCRmWQ=.0c2249d0-4888-4d9d-b7eb-3a3db1cf0653@github.com>

> Vm will calculate max heap size according to the physical ram if user
> doesn't specify the size(-Xmx). However, with tsan 48-bits memory
> mapping of aarch64, it's hard to allocate the large continuous vm
> space. Heap allocation often fail in this case, thus, add a limitation
> at the end of the heap size calculation to prevent to exceed the
> avaiable size. Currently, only support 48-bits address space.
> 
> Can reproduce the behavior by launching "java --version" in a machine
> with huge physical memory.

Jie He has refreshed the contents of this pull request, and previous commits have been removed. The incremental views
will show differences compared to the previous content of the PR. The pull request contains one new commit since the
last revision:

  Add a limit to allocate object heap in aarch64 with tsan enabled.
  
  Vm will calculate max heap size according to the physical ram if user
  doesn't specify the size(-Xmx). However, with tsan 48-bits memory
  mapping of aarch64, it's hard to allocate the large continuous vm
  space. Heap allocation often fail in this case, thus, add a limit
  at os::has_allocatable_memory_limit to prevent to exceed the
  avaiable size. Currently, only support 48-bits address space.
  
  Can reproduce the behavior by launching "java --version" in a machine
  with huge physical memory.
  
  Change-Id: Iabff934444091436bc657978e2e947c270398f29

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

Changes:
  - all: https://git.openjdk.java.net/tsan/pull/6/files
  - new: https://git.openjdk.java.net/tsan/pull/6/files/0ff7ead6..90e2f6f2

Webrevs:
 - full: https://webrevs.openjdk.java.net/tsan/6/webrev.04
 - incr: https://webrevs.openjdk.java.net/tsan/6/webrev.03-04

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/tsan/pull/6.diff
  Fetch: git fetch https://git.openjdk.java.net/tsan pull/6/head:pull/6

PR: https://git.openjdk.java.net/tsan/pull/6

From github.com+10233373+jhe33 at openjdk.java.net  Mon Apr 27 10:41:14 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Mon, 27 Apr 2020 10:41:14 GMT
Subject: [Rev 01] RFR: Add a limition to allocate object heap in aarch64
 with tsan enabled.
In-Reply-To: <PJjhm9CgumUM0z_8b_ZNBtqmjbbuZpNVM3foT8ZJFQc=.6e55eef6-44a4-4a5f-a5a7-ce222e5622fe@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
 <jvULOtlNX5cRd77biEnnxn-wq1dkft-ijrnWCZUiW_Y=.bde7c2d2-7814-4682-87c6-e01e8a93b8a8@github.com>
 <PJjhm9CgumUM0z_8b_ZNBtqmjbbuZpNVM3foT8ZJFQc=.6e55eef6-44a4-4a5f-a5a7-ce222e5622fe@github.com>
Message-ID: <nAZK2jyiBp2rYC4fQYooIlmtSsLS8Na-b88uuEfwHxs=.cab48641-a396-4986-9c8c-fd2fd94a4b3e@github.com>

On Fri, 24 Apr 2020 04:46:47 GMT, Man Cao <manc at openjdk.org> wrote:

>> Jie He has refreshed the contents of this pull request, and previous commits have been removed. The incremental views
>> will show differences compared to the previous content of the PR.
>
> Changes requested by manc (Reviewer).

RFR, thanks.

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

PR: https://git.openjdk.java.net/tsan/pull/6

From martinrb at google.com  Mon Apr 27 15:02:02 2020
From: martinrb at google.com (Martin Buchholz)
Date: Mon, 27 Apr 2020 08:02:02 -0700
Subject: Running Apache Artemis with jdk-tsan; some ready-to-use TSAN
 .supp files?
In-Reply-To: <CA+w6HxawEAL4ssgNtfxuscxE8UFQJrSLU46q4BBhe4equ899pg@mail.gmail.com>
References: <CA+S-PULmxtaim=+0ZjXTKqbsHMGVq4AoVVnuk7F8MLcN5jHo1g@mail.gmail.com>
 <CA+w6HxawEAL4ssgNtfxuscxE8UFQJrSLU46q4BBhe4equ899pg@mail.gmail.com>
Message-ID: <CA+kOe0-9Jw+ZoDNbud+XLLLxo0CfHYypPea7XUHVJz2sw+e=4Q@mail.gmail.com>

See also https://bugs.openjdk.java.net/browse/JDK-8232642

From manc at openjdk.java.net  Tue Apr 28 05:12:03 2020
From: manc at openjdk.java.net (Man Cao)
Date: Tue, 28 Apr 2020 05:12:03 GMT
Subject: [Integrated] RFR: Add a limition to allocate object heap in
 aarch64 with tsan enabled.
In-Reply-To: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
References: <wCfNYqzep3FURpD3U5e7bfSYbz-ksjfBKBxvsAY2wYQ=.e660b04c-3ecb-40b3-9c5f-b20c3a74eb5f@github.com>
Message-ID: <d122a082-aef2-4ad1-ad09-ab4ff1006c4f@openjdk.org>

Changeset: 3542538d
Author:    jie.he <10233373+jhe33 at users.noreply.github.com>
Committer: Man Cao <manc at openjdk.org>
Date:      2020-04-28 05:11:30 +0000
URL:       https://git.openjdk.java.net/tsan/commit/3542538d

Add a limition to allocate object heap in aarch64 with tsan enabled.

Reviewed-by: manc

! src/hotspot/os/posix/os_posix.cpp

From github.com+10233373+jhe33 at openjdk.java.net  Wed Apr 29 10:25:24 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Wed, 29 Apr 2020 10:25:24 GMT
Subject: RFR: Add function entry/exit instruments for aarch64
Message-ID: <a5nyMJW8RcsVkMXYMKYVfAxtaA88Hxv7e46qUd-hUxo=.bc127aa4-4014-40cd-bd01-6827223c434d@github.com>

Add function entry/exit instruments for aarch64, including 3 places:
gernate_normal_entry, generate_native_entry and generate_native_wrapper.

PS, I'm not sure if it's neccessary to instrument tsan into
generate_native_wrapper, which is for compiled code. Now just follow x86.
In addition, all tsan test cases could pass even though I remove the
instruments in generate_native_wrapper.

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

Commit messages:
 - Add function entry/exit instruments for aarch64

Changes: https://git.openjdk.java.net/tsan/pull/7/files
 Webrev: https://webrevs.openjdk.java.net/tsan/7/webrev.00
  Stats: 27 lines in 2 files changed: 27 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/tsan/pull/7.diff
  Fetch: git fetch https://git.openjdk.java.net/tsan pull/7/head:pull/7

PR: https://git.openjdk.java.net/tsan/pull/7

From aeubanks at openjdk.java.net  Wed Apr 29 16:02:51 2020
From: aeubanks at openjdk.java.net (Arthur Eubanks)
Date: Wed, 29 Apr 2020 16:02:51 GMT
Subject: RFR: Add function entry/exit instruments for aarch64
In-Reply-To: <a5nyMJW8RcsVkMXYMKYVfAxtaA88Hxv7e46qUd-hUxo=.bc127aa4-4014-40cd-bd01-6827223c434d@github.com>
References: <a5nyMJW8RcsVkMXYMKYVfAxtaA88Hxv7e46qUd-hUxo=.bc127aa4-4014-40cd-bd01-6827223c434d@github.com>
Message-ID: <DGBCisvkMSc4EDzySjJv8c7aLIljLFXNguRL6YPyUAU=.1e2c0a10-f429-4108-8446-2e56ade1433c@github.com>

On Wed, 29 Apr 2020 10:19:27 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

> Add function entry/exit instruments for aarch64, including 3 places:
> gernate_normal_entry, generate_native_entry and generate_native_wrapper.
> 
> PS, I'm not sure if it's neccessary to instrument tsan into
> generate_native_wrapper, which is for compiled code. Now just follow x86.
> In addition, all tsan test cases could pass even though I remove the
> instruments in generate_native_wrapper.

The commit LGTM, but I have some questions about your comment.

1) You mentioned generate_native_entry, but I don't see that in the commit anywhere.
2) I think generate_native_wrapper is necessary to make tests like RacyNativeLoopTest.java pass, I'd be surprised if it
wasn't necessary.

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

PR: https://git.openjdk.java.net/tsan/pull/7

From github.com+10233373+jhe33 at openjdk.java.net  Thu Apr 30 02:12:43 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Thu, 30 Apr 2020 02:12:43 GMT
Subject: RFR: Add function entry/exit instruments for aarch64
In-Reply-To: <DGBCisvkMSc4EDzySjJv8c7aLIljLFXNguRL6YPyUAU=.1e2c0a10-f429-4108-8446-2e56ade1433c@github.com>
References: <a5nyMJW8RcsVkMXYMKYVfAxtaA88Hxv7e46qUd-hUxo=.bc127aa4-4014-40cd-bd01-6827223c434d@github.com>
 <DGBCisvkMSc4EDzySjJv8c7aLIljLFXNguRL6YPyUAU=.1e2c0a10-f429-4108-8446-2e56ade1433c@github.com>
Message-ID: <6S8LVUsZmYcOzdQ8J8r4vo4FdBJLE7-BSwM_DvMAuCw=.72c001b4-ea9e-44cb-8b91-6fd567a29f56@github.com>

On Wed, 29 Apr 2020 15:59:37 GMT, Arthur Eubanks <aeubanks at openjdk.org> wrote:

>> Add function entry/exit instruments for aarch64, including 3 places:
>> gernate_normal_entry, generate_native_entry and generate_native_wrapper.
>> 
>> PS, I'm not sure if it's neccessary to instrument tsan into
>> generate_native_wrapper, which is for compiled code. Now just follow x86.
>> In addition, all tsan test cases could pass even though I remove the
>> instruments in generate_native_wrapper.
>
> The commit LGTM, but I have some questions about your comment.
> 
> 1) You mentioned generate_native_entry, but I don't see that in the commit anywhere.
> 2) I think generate_native_wrapper is necessary to make tests like RacyNativeLoopTest.java pass, I'd be surprised if it
> wasn't necessary.

@aeubanks thanks for review.
1, I list generate_native_entry in commit msg because I think the generate_native_entry is the real   entry in JVM we
want to instrument, which will call jvmti interface notify_method_entry/exit.

2, I wast just wondering which case will go generate_native_wrapper, thus, I removed the instruments in
generate_native_wrapper, but all cases still passed. as for RacyNativeLoopTest.java, I add a  breakpoint (int 3) before
tsan instruments in generate_native_wrapper, it couldn't stop the execution. but the breakpoint in
generate_native_entry could.

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

PR: https://git.openjdk.java.net/tsan/pull/7

From github.com+10233373+jhe33 at openjdk.java.net  Thu Apr 30 16:54:32 2020
From: github.com+10233373+jhe33 at openjdk.java.net (Jie He)
Date: Thu, 30 Apr 2020 16:54:32 GMT
Subject: [Integrated] RFR: Add function entry/exit instruments for aarch64
In-Reply-To: <a5nyMJW8RcsVkMXYMKYVfAxtaA88Hxv7e46qUd-hUxo=.bc127aa4-4014-40cd-bd01-6827223c434d@github.com>
References: <a5nyMJW8RcsVkMXYMKYVfAxtaA88Hxv7e46qUd-hUxo=.bc127aa4-4014-40cd-bd01-6827223c434d@github.com>
Message-ID: <BvMdssyfFUv8dlzYRUETAfVg4NTqRxWKZ9t-9pYgkts=.f1d8c6a1-2520-40f5-b49e-be0127c0a3ae@github.com>

On Wed, 29 Apr 2020 10:19:27 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

> Add function entry/exit instruments for aarch64, including 3 places:
> gernate_normal_entry, generate_native_entry and generate_native_wrapper.
> 
> PS, I'm not sure if it's neccessary to instrument tsan into
> generate_native_wrapper, which is for compiled code. Now just follow x86.
> In addition, all tsan test cases could pass even though I remove the
> instruments in generate_native_wrapper.

This pull request has now been integrated.

Changeset: 4e35cd6b
Author:    jie.he <10233373+jhe33 at users.noreply.github.com>
Committer: Arthur Eubanks <aeubanks at openjdk.org>
URL:       https://git.openjdk.java.net/tsan/commit/4e35cd6b
Stats:     27 lines in 2 files changed: 0 ins; 27 del; 0 mod

Add function entry/exit instruments for aarch64

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

PR: https://git.openjdk.java.net/tsan/pull/7

From aeubanks at openjdk.java.net  Thu Apr 30 16:54:31 2020
From: aeubanks at openjdk.java.net (Arthur Eubanks)
Date: Thu, 30 Apr 2020 16:54:31 GMT
Subject: RFR: Add function entry/exit instruments for aarch64
In-Reply-To: <6S8LVUsZmYcOzdQ8J8r4vo4FdBJLE7-BSwM_DvMAuCw=.72c001b4-ea9e-44cb-8b91-6fd567a29f56@github.com>
References: <a5nyMJW8RcsVkMXYMKYVfAxtaA88Hxv7e46qUd-hUxo=.bc127aa4-4014-40cd-bd01-6827223c434d@github.com>
 <DGBCisvkMSc4EDzySjJv8c7aLIljLFXNguRL6YPyUAU=.1e2c0a10-f429-4108-8446-2e56ade1433c@github.com>
 <6S8LVUsZmYcOzdQ8J8r4vo4FdBJLE7-BSwM_DvMAuCw=.72c001b4-ea9e-44cb-8b91-6fd567a29f56@github.com>
Message-ID: <JQsMSjzbVsvo14BP2TqEcx6CeeJ0VSGDAddCDoJMFt8=.2d4ea844-2d9f-47d8-a4b8-6821766d5493@github.com>

On Thu, 30 Apr 2020 02:10:25 GMT, Jie He <github.com+10233373+jhe33 at openjdk.org> wrote:

>> The commit LGTM, but I have some questions about your comment.
>> 
>> 1) You mentioned generate_native_entry, but I don't see that in the commit anywhere.
>> 2) I think generate_native_wrapper is necessary to make tests like RacyNativeLoopTest.java pass, I'd be surprised if it
>> wasn't necessary.
>
> @aeubanks thanks for review.
> 1, I list generate_native_entry in commit msg because I think the generate_native_entry is the real   entry in JVM we
> want to instrument, which will call jvmti interface notify_method_entry/exit.
> 2, I was just wondering which case will go generate_native_wrapper, thus, I removed the instruments in
> generate_native_wrapper, but all cases still passed. as for RacyNativeLoopTest.java, I add a  breakpoint (int 3) before
> tsan instruments in generate_native_wrapper, it couldn't stop the execution. but the breakpoint in
> generate_native_entry could.

Hmm interesting...
If that's the case then going with your proposed changes is fine in a future commit. But I'll sponsor this to unblock
for now.

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PR: https://git.openjdk.java.net/tsan/pull/7

From manc at openjdk.java.net  Thu Apr 30 19:23:16 2020
From: manc at openjdk.java.net (Man Cao)
Date: Thu, 30 Apr 2020 19:23:16 GMT
Subject: RFR: Add function entry/exit instruments for aarch64
In-Reply-To: <JQsMSjzbVsvo14BP2TqEcx6CeeJ0VSGDAddCDoJMFt8=.2d4ea844-2d9f-47d8-a4b8-6821766d5493@github.com>
References: <a5nyMJW8RcsVkMXYMKYVfAxtaA88Hxv7e46qUd-hUxo=.bc127aa4-4014-40cd-bd01-6827223c434d@github.com>
 <DGBCisvkMSc4EDzySjJv8c7aLIljLFXNguRL6YPyUAU=.1e2c0a10-f429-4108-8446-2e56ade1433c@github.com>
 <6S8LVUsZmYcOzdQ8J8r4vo4FdBJLE7-BSwM_DvMAuCw=.72c001b4-ea9e-44cb-8b91-6fd567a29f56@github.com>
 <JQsMSjzbVsvo14BP2TqEcx6CeeJ0VSGDAddCDoJMFt8=.2d4ea844-2d9f-47d8-a4b8-6821766d5493@github.com>
Message-ID: <t0m4AMlb_tbdeY6LNn6b4RlQShNKRi5JvD4BajE3A4k=.4c1f459a-7454-473d-a186-f35f92d4f411@github.com>

On Thu, 30 Apr 2020 16:49:18 GMT, Arthur Eubanks <aeubanks at openjdk.org> wrote:

>> @aeubanks thanks for review.
>> 1, I list generate_native_entry in commit msg because I think the generate_native_entry is the real   entry in JVM we
>> want to instrument, which will call jvmti interface notify_method_entry/exit.
>> 2, I was just wondering which case will go generate_native_wrapper, thus, I removed the instruments in
>> generate_native_wrapper, but all cases still passed. as for RacyNativeLoopTest.java, I add a  breakpoint (int 3) before
>> tsan instruments in generate_native_wrapper, it couldn't stop the execution. but the breakpoint in
>> generate_native_entry could.
>
> Hmm interesting...
> If that's the case then going with your proposed changes is fine in a future commit. But I'll sponsor this to unblock
> for now.

For why generate_native_wrapper was not called, it looks like it is only called for compiled code and intrinsics.
-XX:+ThreadSanitizer disables all compilation, and the those native methods in AbstractNativeLoop are not intrinsics.

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PR: https://git.openjdk.java.net/tsan/pull/7