8385309: Test jdk/jfr/event/gc/collection/TestGCEventMixedWithParallelOld.java failed

[sendaoYan]

Hi all,

This pull request contains a backport of commit 85e2b3a0 from the openjdk/jdk repository.

The commit being backported was authored by Albert Mingkun Yang on 27 May 2026 and was reviewed by Erik Gahlin and Axel Boldt-Christmas.

Thanks!

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Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8385309 needs maintainer approval

Errors

 ⚠️ OCA signatory status must be verified
 ⚠️ Pull request body is missing required line: - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai).

Issue

• JDK-8385309: Test jdk/jfr/event/gc/collection/TestGCEventMixedWithParallelOld.java failed (Bug - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk25u-dev.git pull/585/head:pull/585
$ git checkout pull/585

Update a local copy of the PR:
$ git checkout pull/585
$ git pull https://git.openjdk.org/jdk25u-dev.git pull/585/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 585

View PR using the GUI difftool:
$ git pr show -t 585

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk25u-dev/pull/585.diff

[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]

❗ 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.