8311647: Memory leak in Java_jdk_internal_org_jline_terminal_impl_jna_linux_CLibraryImpl_ttyname_1r

[shipilev]

Clean backport to fix a memory leak introduced in JDK 21.

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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-8311647: Memory leak in Java_jdk_internal_org_jline_terminal_impl_jna_linux_CLibraryImpl_ttyname_1r (Bug - P3)

Reviewers

• Roger Riggs (@RogerRiggs - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk21.git pull/126/head:pull/126
$ git checkout pull/126

Update a local copy of the PR:
$ git checkout pull/126
$ git pull https://git.openjdk.org/jdk21.git pull/126/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 126

View PR using the GUI difftool:
$ git pr show -t 126

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk21/pull/126.diff

Webrev

Link to Webrev Comment

[bridgekeeper]

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[openjdk]

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

[openjdk]

@shipilev The following label will be automatically applied to this pull request:

• kulla

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[mlbridge]

Webrevs

• 00: Full (5db9f96b)

[openjdk]

@shipilev 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:

8311647: Memory leak in Java_jdk_internal_org_jline_terminal_impl_jna_linux_CLibraryImpl_ttyname_1r

Reviewed-by: rriggs

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 10 new commits pushed to the master branch:

• c199b8c: 8303134: JFR: Missing stack trace during chunk rotation stress
• fd949c7: 8244289: fatal error: Possible safepoint reached by thread that does not allow it
• 281aee9: 8311867: StructuredTaskScope.shutdown does not interrupt newly started threads
• d370b96: 6960866: [Fmt-Ch] ChoiceFormat claims impossible and unimplemented functionality
• b4f19f5: 8306785: fix deficient spliterators for Sequenced Collections
• 65ed787: 8294401: Update jfr man page to include recently added features
• 2475bba: 8311536: JFR TestNativeMemoryUsageEvents fails in huge pages configuration
• 99d87e9: 8311645: Memory leak in jspawnhelper spawnChild after JDK-8307990
• d174dde: 8311092: Please disable runtime/jni/nativeStack/TestNativeStack.java on armhf
• f792475: 8303279: C2: crash in SubTypeCheckNode::sub() at IGVN split if

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.

[shipilev]

Thanks! The x86_32 test failure is unrelated.

/integrate

[openjdk]

Going to push as commit 49479db.
Since your change was applied there have been 10 commits pushed to the master branch:

• c199b8c: 8303134: JFR: Missing stack trace during chunk rotation stress
• fd949c7: 8244289: fatal error: Possible safepoint reached by thread that does not allow it
• 281aee9: 8311867: StructuredTaskScope.shutdown does not interrupt newly started threads
• d370b96: 6960866: [Fmt-Ch] ChoiceFormat claims impossible and unimplemented functionality
• b4f19f5: 8306785: fix deficient spliterators for Sequenced Collections
• 65ed787: 8294401: Update jfr man page to include recently added features
• 2475bba: 8311536: JFR TestNativeMemoryUsageEvents fails in huge pages configuration
• 99d87e9: 8311645: Memory leak in jspawnhelper spawnChild after JDK-8307990
• d174dde: 8311092: Please disable runtime/jni/nativeStack/TestNativeStack.java on armhf
• f792475: 8303279: C2: crash in SubTypeCheckNode::sub() at IGVN split if

Your commit was automatically rebased without conflicts.

[openjdk]

@shipilev Pushed as commit 49479db.

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