8300526: Test runtime/jni/IsVirtualThread/IsVirtualThread.java should exercise alternative virtual thread implementation

[AlanBateman]

test/hotspot/jtreg/runtime/jni/IsVirtualThread/IsVirtualThread.java is updated to exercise JNI IsVirtualThread when running with -XX:-VMContinuations. On ports with VMContinuations supported, the test re-runs with the alternative implementation of virtual threads to ensure that the JNI function works as expected.

While in the area, the test is changed to used the jtreg @enablePreview tag and also changed to put a try-finally around the test for a started thread to ensure it doesn't it unparks in the event that the test fails.

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Issue

• JDK-8300526: Test runtime/jni/IsVirtualThread/IsVirtualThread.java should exercise alternative virtual thread implementation

Reviewers

• Patricio Chilano Mateo (@pchilano - Reviewer)

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[bridgekeeper]

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[openjdk]

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

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[mlbridge]

Webrevs

• 00: Full (d480fc44)

[openjdk]

@AlanBateman 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:

8300526: Test runtime/jni/IsVirtualThread/IsVirtualThread.java should exercise alternative virtual thread implementation

Reviewed-by: pchilanomate

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 9 new commits pushed to the master branch:

• 2a46e07: 8286581: Make Java process DPI Aware if sun.java2d.dpiaware property is set
• 3ea0b8b: 8300489: Use ArraysSupport.vectorizedHashCode in j.l.CharacterName
• fcbf9d0: 8300243: Replace NULL with nullptr in share/compiler/
• c205cae: 8297851: Add devkit for RISC-V
• c3242ee: 8298596: vmTestbase/nsk/sysdict/vm/stress/chain/chain008/chain008.java fails with "NoClassDefFoundError: Could not initialize class java.util.concurrent.ThreadLocalRandom"
• b3684f4: 8153837: AArch64: Handle special cases for MaxINode & MinINode
• 754f6e6: 8300237: Minor improvements in MethodHandles
• 85d8bac: 8300166: Unused array allocation in ProcessPath.doProcessPath
• c464ef1: 8292741: Convert JvmtiTagMapTable to ResourceHashtable

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.

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[AlanBateman]

/integrate

[openjdk]

Going to push as commit 08e6218.
Since your change was applied there have been 40 commits pushed to the master branch:

• cfe5746: 8300242: Replace NULL with nullptr in share/code/
• 5f66024: 8299959: C2: CmpU::Value must filter overflow computation against local sub computation
• 5b0af1a: 8208077: File.listRoots performance degradation
• 2e9cb4b: 8267582: BasicLookAndFeel should not call getComponentPopupMenu twice to get a popup menu
• 7348b9e: 8300167: Add validation of the raster's layout before using in native
• 24cdcd4: 8293841: RISC-V: Implementation of Foreign Function & Memory API (Preview)
• 8e3036c: 8300595: Use improved @see and @link syntax in javax.lang.model and javax.tools
• 715b509: 8298632: [TESTBUG] Add IR checks in jtreg vectorization tests
• 910dffe: 8292635: Run ArchivedEnumTest.java in jdk tier testing
• fc9f8ba: Merge
• ... and 30 more: https://git.openjdk.org/jdk/compare/1aded82e546869f80b0464e92de137cc42db2658...master

Your commit was automatically rebased without conflicts.

[openjdk]

@AlanBateman Pushed as commit 08e6218.

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