8276995: Bug in jdk.jfr.event.gc.collection.TestSystemGC

[sendaoYan]

Hi all,

This pull request contains a backport of commit e80b76b6 from the openjdk/jdk repository.

The commit being backported was authored by Robert Toyonaga on 27 Feb 2025 and was reviewed by Erik Gahlin and David Holmes.

Thanks!

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8276995 needs maintainer approval

Issue

• JDK-8276995: Bug in jdk.jfr.event.gc.collection.TestSystemGC (Bug - P4 - Approved)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk21u-dev.git pull/1444/head:pull/1444
$ git checkout pull/1444

Update a local copy of the PR:
$ git checkout pull/1444
$ git pull https://git.openjdk.org/jdk21u-dev.git pull/1444/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 1444

View PR using the GUI difftool:
$ git pr show -t 1444

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk21u-dev/pull/1444.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:

8276995: Bug in jdk.jfr.event.gc.collection.TestSystemGC

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 20 new commits pushed to the master branch:

• 6957d6f: 8347126: gc/stress/TestStressG1Uncommit.java gets OOM-killed
• dee3212: 8318636: Add jcmd to print annotated process memory map
• 16a593a: 8348596: Update FreeType to 2.13.3
• 86b0fb8: 8348936: [Accessibility,macOS,VoiceOver] VoiceOver doesn't announce untick on toggling the checkbox with "space" key on macOS
• c46e81a: 8349751: AIX build failure after upgrade pipewire to 1.3.81
• 43ac809: 8348600: Update PipeWire to 1.3.81
• 11f9e7e: 8348299: Update List/ItemEventTest/ItemEventTest.java
• 6cf39a7: 8341170: Open source several Choice related tests (part 2)
• 94abc6a: 8341535: sun/awt/font/TestDevTransform.java fails with RuntimeException: Different rendering
• 4c0117a: 8309841: Jarsigner should print a warning if an entry is removed
• ... and 10 more: https://git.openjdk.org/jdk21u-dev/compare/ef23a01ac5abdeadeaf4bfddb156c22c148cc64d...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 (566a3fed)

[sendaoYan]

/approval request Clean backport to fix the test bug. Test-fix only, change has been verified locally, no risk.

[openjdk]

@sendaoYan
8276995: The approval request has been created successfully.

[sendaoYan]

Thanks for the approved.

/integrate

[openjdk]

Going to push as commit 95ac895.
Since your change was applied there have been 26 commits pushed to the master branch:

• 8cb9a28: 8343224: print/Dialog/PaperSizeError.java fails with MediaSizeName is not A4: A4
• d391957: 8350616: Skip ValidateHazardPtrsClosure in non-debug builds
• 50f8384: 8319439: Move BufferNode from PtrQueue files to new files
• 002a1ec: 8315742: Open source several Swing Scroll related tests
• d9bb8dd: 8346264: "Total compile time" counter should include time spent in failing/bailout compiles
• a12f9f2: 8350201: Out of bounds access on Linux aarch64 in os::print_register_info
• 6957d6f: 8347126: gc/stress/TestStressG1Uncommit.java gets OOM-killed
• dee3212: 8318636: Add jcmd to print annotated process memory map
• 16a593a: 8348596: Update FreeType to 2.13.3
• 86b0fb8: 8348936: [Accessibility,macOS,VoiceOver] VoiceOver doesn't announce untick on toggling the checkbox with "space" key on macOS
• ... and 16 more: https://git.openjdk.org/jdk21u-dev/compare/ef23a01ac5abdeadeaf4bfddb156c22c148cc64d...master

Your commit was automatically rebased without conflicts.

[openjdk]

@sendaoYan Pushed as commit 95ac895.

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