8305186: Reference.waitForReferenceProcessing should be more accessible to tests

[sendaoYan]

Hi all,

This pull request contains a backport of commit d8f012ea from the openjdk/jdk repository.

The commit being backported was authored by Brent Christian on 25 Apr 2025 and was reviewed by Kim Barrett.

The github shows it's not cleanly backport, seems that this file has different context. I compare the patch file from main-line repo and jdk11u-dev repo, the change lines are all the same.

I have verified this clean backport PR locally with test test/jdk/java/lang/ref/FinalizerHistogramTest.java after apply the patch JDK-8298783 which use the newly added function.

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
• Commit message must refer to an issue
• JDK-8305186 needs maintainer approval

Issue

• JDK-8305186: Reference.waitForReferenceProcessing should be more accessible to tests (Enhancement - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk11u-dev.git pull/3105/head:pull/3105
$ git checkout pull/3105

Update a local copy of the PR:
$ git checkout pull/3105
$ git pull https://git.openjdk.org/jdk11u-dev.git pull/3105/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 3105

View PR using the GUI difftool:
$ git pr show -t 3105

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk11u-dev/pull/3105.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]

❗ 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.

[sendaoYan]

I have verified this clean backport PR locally with test test/jdk/java/lang/ref/FinalizerHistogramTest.java which use the newly added function.

[mlbridge]

Webrevs

• 00: Full (7709c20d)