8345970: pthread_getcpuclockid related crashes in shenandoah tests

[earthling-amzn]

Clean backport.

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Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed (1 review required, with at least 1 Committer)

Issue

• JDK-8345970: pthread_getcpuclockid related crashes in shenandoah tests (Bug - P2)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/shenandoah-jdk21u.git pull/145/head:pull/145
$ git checkout pull/145

Update a local copy of the PR:
$ git checkout pull/145
$ git pull https://git.openjdk.org/shenandoah-jdk21u.git pull/145/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 145

View PR using the GUI difftool:
$ git pr show -t 145

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/shenandoah-jdk21u/pull/145.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back wkemper! 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]

@earthling-amzn This change is no longer ready for integration - check the PR body for details.

[openjdk]

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

[mlbridge]

Webrevs

• 01: Full - Incremental (8401a30a)
• 00: Full (0c969cc4)