8313770: jdk/internal/platform/docker/TestSystemMetrics.java fails on Ubuntu

[sendaoYan]

Hi all,

This pull request contains a backport of commit aec13888 from the openjdk/jdk repository.

The commit being backported was authored by Casper Norrbin on 23 Oct 2025 and was reviewed by Severin Gehwolf, Matthias Baesken and SendaoYan.

Thanks!

---

Progress

• JDK-8313770 needs maintainer approval
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8313770: jdk/internal/platform/docker/TestSystemMetrics.java fails on Ubuntu (Bug - P3 - Approved)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk21u-dev.git pull/2382/head:pull/2382
$ git checkout pull/2382

Update a local copy of the PR:
$ git checkout pull/2382
$ git pull https://git.openjdk.org/jdk21u-dev.git pull/2382/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 2382

View PR using the GUI difftool:
$ git pr show -t 2382

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Download this PR as a diff file:
https://git.openjdk.org/jdk21u-dev/pull/2382.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:

8313770: jdk/internal/platform/docker/TestSystemMetrics.java fails on Ubuntu

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 100 new commits pushed to the master branch:

• 2f89740: 8366893: java/lang/Thread/virtual/stress/GetStackTraceALotWhenPinned.java timed out on macos-aarch64
• a9b396f: 8351110: ImageIO.write for JPEG can write corrupt JPEG for certain thumbnail dimensions
• 505a371: 8352682: Opensource JComponent tests
• ... and 97 more: https://git.openjdk.org/jdk21u-dev/compare/985c61e68e81de01dabe87b5f52e3673e5734a89...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 (f27e7f21)

[sendaoYan]

/approval request Clean backport to fix the test bug which cause test fails intermittently. Change has been verified locally, test-fix only, no risk.

[openjdk]

@sendaoYan
8313770: The approval request has been created successfully.

[GoeLin]

Hi @sendaoYan,
I would prefer if you only request approval for 17 & 21 once it is in 25. I would like to avoid that
changes reach the January update in 21 and 17, but not the corresponding 25 January update.
Making an exception here as it's test-only.

[sendaoYan]

Hi @sendaoYan, I would prefer if you only request approval for 17 & 21 once it is in 25. I would like to avoid that changes reach the January update in 21 and 17, but not the corresponding 25 January update. Making an exception here as it's test-only.

Got it, I will pay attention next time to add request approval. And I will integrate this to jdk17/21 after jdk25.

[sendaoYan]

jdk25u has been integrated.

Thanks for the approved.

/integrate

[openjdk]

Going to push as commit 928ac3a.
Since your change was applied there have been 105 commits pushed to the master branch:

• 567e648: 8368960: Adjust java UL logging in the build
• ce31408: 8369563: Gtest dll_address_to_function_and_library_name has issues with stripped pdb files
• efa1f8e: 8343340: Swapping checking do not work for MetricsMemoryTester failcount
• ... and 102 more: https://git.openjdk.org/jdk21u-dev/compare/985c61e68e81de01dabe87b5f52e3673e5734a89...master

Your commit was automatically rebased without conflicts.

[openjdk]

@sendaoYan Pushed as commit 928ac3a.

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