8311992: Test java/lang/Thread/virtual/JfrEvents::testVirtualThreadPinned failed

[AlanBateman]

This is a test only update to a test for the JFR event jdk.VirtualThreadPinned event. The test we added in JDK 19 does 3 sleeps, one with a small duration, twice with a long duration. The test enables the event with a threshold of 500ms and expects there will be two events recorded; no event for the sleep with the small duration. In extreme cases, it's possible that the short sleep takes more than 500ms so an event is recorded and the test fails. The test is changed to drop the threshold, it's not needed. It's also changed to explicitly park to avoid the long sleeps. A drive-by change is to print the events to System.err rather than System.out so they are inlined with the JUnit output (the original test was TestNG where the output went to System.out).

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Issue

• JDK-8311992: Test java/lang/Thread/virtual/JfrEvents::testVirtualThreadPinned failed (Bug - P4)

Reviewers

• Jaikiran Pai (@jaikiran - Reviewer)

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[openjdk]

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

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After integration, the commit message for the final commit will be:

8311992: Test java/lang/Thread/virtual/JfrEvents::testVirtualThreadPinned failed

Reviewed-by: jpai

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At the time when this comment was updated there had been 4 new commits pushed to the master branch:

• d1fa1a8: 8311825: Duplicate qualified enum constants not detected
• 4676b40: 8312049: runtime/logging/ClassLoadUnloadTest can be improved
• bbb7ce5: 8311038: Incorrect exhaustivity computation
• 2e12a12: 8281658: Add a security category to the java -XshowSettings option

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[AlanBateman]

/integrate

[openjdk]

Going to push as commit 0d2196f.
Since your change was applied there have been 8 commits pushed to the master branch:

• f3b96f6: 8311862: RISC-V: small improvements to shift immediate instructions
• a63f865: 8311946: add support for libgraal specific jtreg tests
• 167d1c1: 8311986: Disable runtime/os/TestTracePageSizes.java for ShenandoahGC
• 7539cc0: 8303134: JFR: Missing stack trace during chunk rotation stress
• d1fa1a8: 8311825: Duplicate qualified enum constants not detected
• 4676b40: 8312049: runtime/logging/ClassLoadUnloadTest can be improved
• bbb7ce5: 8311038: Incorrect exhaustivity computation
• 2e12a12: 8281658: Add a security category to the java -XshowSettings option

Your commit was automatically rebased without conflicts.

[openjdk]

@AlanBateman Pushed as commit 0d2196f.

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