8367302: New test jdk/jfr/event/profiling/TestCPUTimeSampleQueueAutoSizes.java from JDK-8366082 is failing

[parttimenerd]

Hi all,

This pull request contains a backport of commit d27649fe from the openjdk/jdk repository.

The commit being backported was authored by Johannes Bechberger on 8 Oct 2025 and was reviewed by David Holmes and Andrei Pangin.

The backported is clean, although git had slight problems.

Thanks!

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Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• JDK-8367302 needs maintainer approval
• Commit message must refer to an issue

Issue

• JDK-8367302: New test jdk/jfr/event/profiling/TestCPUTimeSampleQueueAutoSizes.java from JDK-8366082 is failing (Bug - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk25u-dev.git pull/42/head:pull/42
$ git checkout pull/42

Update a local copy of the PR:
$ git checkout pull/42
$ git pull https://git.openjdk.org/jdk25u-dev.git pull/42/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 42

View PR using the GUI difftool:
$ git pr show -t 42

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk25u-dev/pull/42.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back jbechberger! 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]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

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

[mlbridge]

Webrevs

• 00: Full (e856d1cb)

[GoeLin]

Hi @parttimenerd
the backport is not clean. It is only clean if Skara recognizes it as such. Please correct your PR message. Also describe the differences to the original change in the PR message.
Alternatively, correct the change so that Skara recognizes it as clean.
Thanks.

[parttimenerd]

I'm confused by the backport. There must be changes that are not backported to JDK25.

[parttimenerd]

I probably found the culprit: openjdk/jdk#26926 has never been backported

[parttimenerd]

The new backport in question is #44