Merge openjdk/jdk21u:master

[earthling-amzn]

Merges tag jdk-21.0.6-ga

---

Progress

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Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/shenandoah-jdk21u.git pull/152/head:pull/152
$ git checkout pull/152

Update a local copy of the PR:
$ git checkout pull/152
$ git pull https://git.openjdk.org/shenandoah-jdk21u.git pull/152/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 152

View PR using the GUI difftool:
$ git pr show -t 152

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/shenandoah-jdk21u/pull/152.diff

[bridgekeeper]

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[openjdk]

@earthling-amzn This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

Merge

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 141 new commits pushed to the master branch:

• 31e89a5: 8345750: Shenandoah: Test TestJcmdHeapDump.java#aggressive intermittent assert(gc_cause() == GCCause::_no_gc) failed: Over-writing cause
• 3c538ce: 8346737: GenShen: Generational memory pools should not report zero for maximum capacity
• ae45b94: 8346690: Shenandoah: Fix log message for end of GC usage report
• 48cd85f: 8346688: GenShen: Missing metadata trigger log message
• 463eb23: 8346681: Shenandoah: Does not throw OOME when EATests expects it
• 1d7e999: 8345970: pthread_getcpuclockid related crashes in shenandoah tests
• b0898ae: 8346051: MemoryTest fails when Shenandoah's generational mode is enabled
• 71c448f: 8342214: GenShen: Reduce code duplication in shFreeSet with iterator abstraction
• 562224c: 8346044: GenShen: ShenandoahGenerationalHeap entry missing from Universe.java
• 842a0d8: 8342001: GenShen: Factor cases for allocation type into separate methods
• ... and 131 more: https://git.openjdk.org/shenandoah-jdk21u/compare/e45287d1ad9dcadf8a23d3271f1b675b8dade0ac...master

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.