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/jdk17u-dev.git pull/4092/head:pull/4092
$ git checkout pull/4092

Update a local copy of the PR:
$ git checkout pull/4092
$ git pull https://git.openjdk.org/jdk17u-dev.git pull/4092/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 4092

View PR using the GUI difftool:
$ git pr show -t 4092

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk17u-dev/pull/4092.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 75 new commits pushed to the master branch:

• e3c50e1: 8358764: (sc) SocketChannel.close when thread blocked in read causes connection to be reset (win)
• 9bf2571: 8328299: Convert DnDFileGroupDescriptor.html applet test to main
• 9592af7: 8352686: Opensource JInternalFrame tests - series3
• ... and 72 more: https://git.openjdk.org/jdk17u-dev/compare/0b3561a675fb902400b0105fe87341ea7e738c1e...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 (c81c93aa)

[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.