8377347: jdk/jfr/event/gc/detailed/TestZAllocationStallEvent.java intermittent OOME

[sendaoYan]

Hi all,

This pull request contains a backport of commit 0842782b from the openjdk/jdk repository.

The commit being backported was authored by SendaoYan on 13 Feb 2026 and was reviewed by Albert Mingkun Yang and Stefan Karlsson.

Thanks!

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8377347 needs maintainer approval

Issue

• JDK-8377347: jdk/jfr/event/gc/detailed/TestZAllocationStallEvent.java intermittent OOME (Bug - P4 - Approved)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk25u-dev.git pull/266/head:pull/266
$ git checkout pull/266

Update a local copy of the PR:
$ git checkout pull/266
$ git pull https://git.openjdk.org/jdk25u-dev.git pull/266/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 266

View PR using the GUI difftool:
$ git pr show -t 266

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk25u-dev/pull/266.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back syan! 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]

@sendaoYan 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:

8377347: jdk/jfr/event/gc/detailed/TestZAllocationStallEvent.java intermittent OOME

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 21 new commits pushed to the master branch:

• 5cac27d: 8359868: Shenandoah: Free threshold heuristic does not use SoftMaxHeapSize
• f6b989e: 8361530: Test javax/swing/GraphicsConfigNotifier/StalePreferredSize.java timed out
• 7ab5e3a: 8364580: Test compiler/vectorization/TestSubwordTruncation.java fails on platforms without RoundF/RoundD
• ... and 18 more: https://git.openjdk.org/jdk25u-dev/compare/5c40aa76793dbf252dba4dba5b4f5bb2f5a3b3d8...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.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[openjdk]

⚠️ @sendaoYan This change is now ready for you to apply for maintainer approval. This can be done directly in each associated issue or by using the /approval command.

[mlbridge]

Webrevs

• 00: Full (59147d87)

[sendaoYan]

Change has been verified locally on linux-x64.

[sendaoYan]

/approval request Clean backport make test more robustness. Change has been verified locally on linux-x64, test-fix only, no risk.

[openjdk]

@sendaoYan
8377347: The approval request has been created successfully.

[sendaoYan]

Thanks for the approved.

/integrate

[openjdk]

Going to push as commit 321fa97.
Since your change was applied there have been 24 commits pushed to the master branch:

• 6a95907: 8369335: Two sun/java2d/OpenGL tests fail on Windows after JDK-8358058
• 57ea04c: 8367302: New test jdk/jfr/event/profiling/TestCPUTimeSampleQueueAutoSizes.java from JDK-8366082 is failing
• f51b93e: 8376688: Gtest os.attempt_reserve_memory_between_small_range_fill_hole_vm fails on AIX 7.3
• ... and 21 more: https://git.openjdk.org/jdk25u-dev/compare/5c40aa76793dbf252dba4dba5b4f5bb2f5a3b3d8...master

Your commit was automatically rebased without conflicts.

[openjdk]

@sendaoYan Pushed as commit 321fa97.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.