8307091: A few client tests intermittently throw ConcurrentModificationException

[TheRealMDoerr]

Clean backport of JDK-8307091. This fix is superseded by JDK-8323670, but required for that one to apply.

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8307091 needs maintainer approval

Issue

• JDK-8307091: A few client tests intermittently throw ConcurrentModificationException (Bug - P2 - Approved)

Reviewing

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Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk17u-dev.git pull/2551/head:pull/2551
$ git checkout pull/2551

Update a local copy of the PR:
$ git checkout pull/2551
$ git pull https://git.openjdk.org/jdk17u-dev.git pull/2551/head

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Checkout this PR locally:
$ git pr checkout 2551

View PR using the GUI difftool:
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Download this PR as a diff file:
https://git.openjdk.org/jdk17u-dev/pull/2551.diff

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[bridgekeeper]

👋 Welcome back mdoerr! 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]

@TheRealMDoerr 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:

8307091: A few client tests intermittently throw ConcurrentModificationException

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 29 new commits pushed to the master branch:

• ce19e61: 8333724: Problem list security/infra/java/security/cert/CertPathValidator/certification/CAInterop.java#teliasonerarootcav1
• af699ff: 8325567: jspawnhelper without args fails with segfault
• a86a221: 8329995: Restricted access to /proc can cause JFR initialization to crash
• 28aa19e: 8316328: Test jdk/jfr/event/oldobject/TestSanityDefault.java times out for some heap sizes
• 9aa7b2f: 8279337: The MToolkit is still referenced in a few places
• 2db1501: 8323801: tag doesn't strikethrough the text
• 5377458: 8005885: enhance PrintCodeCache to print more data
• d23f4d6: 8282526: Default icon is not painted properly
• d117806: 8279068: IGV: Update to work with JDK 16 and 17
• 7d0d793: 8233725: ProcessTools.startProcess() has output issues when using an OutputAnalyzer at the same time
• ... and 19 more: https://git.openjdk.org/jdk17u-dev/compare/09ad130fd4f40278e8b228853c9a4b662521c01d...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]

⚠️ @TheRealMDoerr 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 (bf74fa9c)

[TheRealMDoerr]

The previous PR was already successfully tested (Tier 1-4).

[TheRealMDoerr]

/approval request This backport is needed for JDK-8323670 to apply. I guess that the backports were bundled in 17.0.13-oracle. Applies cleanly and tier 1-4 have passed.

[openjdk]

@TheRealMDoerr
8307091: The approval request has been created successfully.

[TheRealMDoerr]

/integrate

[openjdk]

Going to push as commit 43a6746.
Since your change was applied there have been 29 commits pushed to the master branch:

• ce19e61: 8333724: Problem list security/infra/java/security/cert/CertPathValidator/certification/CAInterop.java#teliasonerarootcav1
• af699ff: 8325567: jspawnhelper without args fails with segfault
• a86a221: 8329995: Restricted access to /proc can cause JFR initialization to crash
• 28aa19e: 8316328: Test jdk/jfr/event/oldobject/TestSanityDefault.java times out for some heap sizes
• 9aa7b2f: 8279337: The MToolkit is still referenced in a few places
• 2db1501: 8323801: tag doesn't strikethrough the text
• 5377458: 8005885: enhance PrintCodeCache to print more data
• d23f4d6: 8282526: Default icon is not painted properly
• d117806: 8279068: IGV: Update to work with JDK 16 and 17
• 7d0d793: 8233725: ProcessTools.startProcess() has output issues when using an OutputAnalyzer at the same time
• ... and 19 more: https://git.openjdk.org/jdk17u-dev/compare/09ad130fd4f40278e8b228853c9a4b662521c01d...master

Your commit was automatically rebased without conflicts.

[openjdk]

@TheRealMDoerr Pushed as commit 43a6746.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.