8307091: A few client tests intermittently throw ConcurrentModificationException

[luchenlin]

Due to JDK-8327137 and JDK-8323670 depends on this, so i will backport this first, and then backport the others.

---

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/jdk11u-dev.git pull/2720/head:pull/2720
$ git checkout pull/2720

Update a local copy of the PR:
$ git checkout pull/2720
$ git pull https://git.openjdk.org/jdk11u-dev.git pull/2720/head

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Checkout this PR locally:
$ git pr checkout 2720

View PR using the GUI difftool:
$ git pr show -t 2720

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Download this PR as a diff file:
https://git.openjdk.org/jdk11u-dev/pull/2720.diff

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[bridgekeeper]

👋 Welcome back andrewlu! 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]

@luchenlin This change now passes all automated pre-integration checks.

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 31 new commits pushed to the master branch:

• 2ded016: 8329995: Restricted access to /proc can cause JFR initialization to crash
• bf56996: 8316104: Open source several Swing SplitPane and RadioButton related tests
• 2f7954c: 8294148: Support JSplitPane for instructions and test UI
• f36ba5a: 8328218: Delete test java/awt/Window/FindOwner/FindOwner.html
• b5cbf8d: 8328561: test java/awt/Robot/ManualInstructions/ManualInstructions.java isn't used
• aa0bba2: 8328234: Remove unused nativeUtils files
• e4fb228: 8286781: Replace the deprecated/obsolete gethostbyname and inet_addr calls
• e72f491: 8333724: Problem list security/infra/java/security/cert/CertPathValidator/certification/CAInterop.java#teliasonerarootcav1
• d659ff6: 8316328: Test jdk/jfr/event/oldobject/TestSanityDefault.java times out for some heap sizes
• 69b6e6d: 8329004: Update Libpng to 1.6.43
• ... and 21 more: https://git.openjdk.org/jdk11u-dev/compare/b7596f3f9d0b442628272459f3f22b3d36634967...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]

⚠️ @luchenlin 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 (f8de4fc3)

[luchenlin]

/integrate

[openjdk]

Going to push as commit 54bf522.
Since your change was applied there have been 31 commits pushed to the master branch:

• 2ded016: 8329995: Restricted access to /proc can cause JFR initialization to crash
• bf56996: 8316104: Open source several Swing SplitPane and RadioButton related tests
• 2f7954c: 8294148: Support JSplitPane for instructions and test UI
• f36ba5a: 8328218: Delete test java/awt/Window/FindOwner/FindOwner.html
• b5cbf8d: 8328561: test java/awt/Robot/ManualInstructions/ManualInstructions.java isn't used
• aa0bba2: 8328234: Remove unused nativeUtils files
• e4fb228: 8286781: Replace the deprecated/obsolete gethostbyname and inet_addr calls
• e72f491: 8333724: Problem list security/infra/java/security/cert/CertPathValidator/certification/CAInterop.java#teliasonerarootcav1
• d659ff6: 8316328: Test jdk/jfr/event/oldobject/TestSanityDefault.java times out for some heap sizes
• 69b6e6d: 8329004: Update Libpng to 1.6.43
• ... and 21 more: https://git.openjdk.org/jdk11u-dev/compare/b7596f3f9d0b442628272459f3f22b3d36634967...master

Your commit was automatically rebased without conflicts.

[openjdk]

@luchenlin Pushed as commit 54bf522.

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