8320331: G1 Full GC Heap verification relies on metadata not reset before verification

[GoeLin]

I backport this as prereq of JDK-8317809.

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8320331 needs maintainer approval

Issue

• JDK-8320331: G1 Full GC Heap verification relies on metadata not reset before verification (Bug - P4 - Approved)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk21u-dev.git pull/519/head:pull/519
$ git checkout pull/519

Update a local copy of the PR:
$ git checkout pull/519
$ git pull https://git.openjdk.org/jdk21u-dev.git pull/519/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 519

View PR using the GUI difftool:
$ git pr show -t 519

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk21u-dev/pull/519.diff

Webrev

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[bridgekeeper]

👋 Welcome back goetz! 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]

@GoeLin 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:

8320331: G1 Full GC Heap verification relies on metadata not reset before verification

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 8 new commits pushed to the master branch:

• 8e438ab: 8315824: Open source several Swing Text/HTML related tests
• 1f43e2f: 8326006: Allow TEST_VM_FLAGLESS to set flagless mode
• a6931db: 8315071: Modify TrayIconScalingTest.java, PrintLatinCJKTest.java to use new PassFailJFrame's builder pattern usage
• af6c585: 8327474: Review use of java.io.tmpdir in jdk tests
• 62993e7: 8328555: hidpi problems for test java/awt/Dialog/DialogAnotherThread/JaWSTest.java
• 9b04df2: 8327180: Failed: java/io/ObjectStreamClass/ObjectStreamClassCaching.java#G1
• d19b1a4: 8327486: java/util/Properties/PropertiesStoreTest.java fails "Text 'xxx' could not be parsed at index 20" after 8174269
• 667513a: 8325028: (ch) Pipe channels should lazily set socket to non-blocking mode on first use by virtual thread

Please see this link for an up-to-date comparison between the source branch of this pull request and the master branch.
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]

⚠️ @GoeLin 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 (71f560ee)

[GoeLin]

/integrate

[openjdk]

Going to push as commit ffdde9c.
Since your change was applied there have been 11 commits pushed to the master branch:

• d11a065: 8187759: Background not refreshed when painting over a transparent JFrame
• 5880551: 8318854: [macos14] Running any AWT app prints Secure coding warning
• b56b6f5: 8327136: javax/management/remote/mandatory/notif/NotifReconnectDeadlockTest.java fails on libgraal
• 8e438ab: 8315824: Open source several Swing Text/HTML related tests
• 1f43e2f: 8326006: Allow TEST_VM_FLAGLESS to set flagless mode
• a6931db: 8315071: Modify TrayIconScalingTest.java, PrintLatinCJKTest.java to use new PassFailJFrame's builder pattern usage
• af6c585: 8327474: Review use of java.io.tmpdir in jdk tests
• 62993e7: 8328555: hidpi problems for test java/awt/Dialog/DialogAnotherThread/JaWSTest.java
• 9b04df2: 8327180: Failed: java/io/ObjectStreamClass/ObjectStreamClassCaching.java#G1
• d19b1a4: 8327486: java/util/Properties/PropertiesStoreTest.java fails "Text 'xxx' could not be parsed at index 20" after 8174269
• ... and 1 more: https://git.openjdk.org/jdk21u-dev/compare/515783b86c5efae1f5385b4bc869869af58cb5bc...master

Your commit was automatically rebased without conflicts.

[openjdk]

@GoeLin Pushed as commit ffdde9c.

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