Merge openjdk/jdk21u-dev:master

[earthling-amzn]

Merges tag jdk-21.0.5+6

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed (1 review required, with at least 1 Committer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/shenandoah-jdk21u.git pull/76/head:pull/76
$ git checkout pull/76

Update a local copy of the PR:
$ git checkout pull/76
$ git pull https://git.openjdk.org/shenandoah-jdk21u.git pull/76/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 76

View PR using the GUI difftool:
$ git pr show -t 76

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/shenandoah-jdk21u/pull/76.diff

[bridgekeeper]

👋 Welcome back wkemper! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[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 67 new commits pushed to the master branch:

• b769373: Merge
• d2bfbc4: Merge
• 446f5b7: Merge
• 622d8d4: 8335930: GenShen: Reserve regions within each generation's freeset until available is sufficient
• a766448: 8327000: GenShen: Integrate updated Shenandoah implementation of FreeSet into GenShen
• 59b85cf: Merge
• 2cc704b: 8335126: Shenandoah: Improve OOM handling
• 80e796b: 8328235: GenShen: Robustify ShenandoahGCSession and fix missing use
• acb6b5f: 8335347: GenShen: Revert change that has adaptive heuristic ignore abbreviated cycles
• 8e2bc91: 8334491: GenShen: Revert changes to Shenandoah defaults
• ... and 57 more: https://git.openjdk.org/shenandoah-jdk21u/compare/33f4d805747ed1c63ab7fba169149d2dfbb2cded...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.

[earthling-amzn]

Superseded by #77

[mlbridge]

Webrevs

• 01: Full - Incremental (459757e3)