8322237: Heap dump contains duplicate thread records for mounted virtual threads

[alexmenkov]

Hi all,

This pull request contains a backport of commit dd8ae616 from the openjdk/jdk repository.

The commit being backported was authored by Alex Menkov on 9 Jan 2024 and was reviewed by David Holmes and Serguei Spitsyn.

Thanks!

---

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

Issue

• JDK-8322237: Heap dump contains duplicate thread records for mounted virtual threads (Bug - P3)

Reviewers

• Serguei Spitsyn (@sspitsyn - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk22.git pull/60/head:pull/60
$ git checkout pull/60

Update a local copy of the PR:
$ git checkout pull/60
$ git pull https://git.openjdk.org/jdk22.git pull/60/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 60

View PR using the GUI difftool:
$ git pr show -t 60

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk22/pull/60.diff

Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back amenkov! 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 backport pull request has now been updated with issue from the original commit.

[openjdk]

@alexmenkov The following labels will be automatically applied to this pull request:

• hotspot-runtime
• serviceability

When this pull request is ready to be reviewed, an "RFR" email will be sent to the corresponding mailing lists. If you would like to change these labels, use the /label pull request command.

[mlbridge]

Webrevs

• 00: Full (795a4e0c)

[sspitsyn]

This backport is clean.

[openjdk]

@alexmenkov 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:

8322237: Heap dump contains duplicate thread records for mounted virtual threads

Reviewed-by: sspitsyn

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 3 new commits pushed to the master branch:

• 3daa936: 8318971: Better Error Handling for Jar Tool When Processing Non-existent Files
• db34275: 8322324: java/foreign/TestStubAllocFailure.java times out while waiting for forked process
• 5308410: 8321683: Tests fail with AssertionError in RangeWithPageSize

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.

[alexmenkov]

/integrate

[openjdk]

Going to push as commit 3984a00.
Since your change was applied there have been 4 commits pushed to the master branch:

• 4ea14b2: 8322971: KEM.getInstance() should check if a 3rd-party security provider is signed
• 3daa936: 8318971: Better Error Handling for Jar Tool When Processing Non-existent Files
• db34275: 8322324: java/foreign/TestStubAllocFailure.java times out while waiting for forked process
• 5308410: 8321683: Tests fail with AssertionError in RangeWithPageSize

Your commit was automatically rebased without conflicts.

[openjdk]

@alexmenkov Pushed as commit 3984a00.

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