Bug ID: JDK-8345958 Test gc/shenandoah/TestVerifyLevels.java#generational intermittent timed out

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tbdResolved

The newly added test gc/shenandoah/TestVerifyLevels.java#generational intermittent timed out by release build on linux-x64.

The stack trace doesn't contain MainThread.

TEST RESULT: Error. Program `/tmp/tone/run/jtreg/jdk-repo/build/linux-x86_64-server-release/images/jdk/bin/java' timed out (timeout set to 480000ms, elapsed time including timeout handling was 480270ms).

gc/TestAllocHumongousFragment.java#generational was observed timed out by GHA https://github.com/sendaoYan/jdk-ysd/actions/runs/13690409919/job/38284856142
07-03-2025
gc/shenandoah/TestSmallHeap.java#generational reported timed out by GHA https://github.com/sendaoYan/jdk-ysd/actions/runs/12434571112/job/34720202011
21-12-2024
> gc/shenandoah/TestGCThreadGroups.java#generational same to. We see also timeouts in the tests gc/shenandoah/TestGCThreadGroups.java#generational gc/shenandoah/TestEvilSyncBug.java#generational (some on Linux, some on Windows) over the last few days.
17-12-2024
gc/stress/gcbasher/TestGCBasherWithShenandoah.java#generational-deopt-nmethod same to
16-12-2024
gc/shenandoah/TestGCThreadGroups.java#generational same to.
16-12-2024
gc/shenandoah/TestSieveObjects.java#generational same to
16-12-2024
gc/shenandoah/generational/TestOldGrowthTriggers.java intermittent timed out by 1. fastdebug build on linux-aarch64 2. release build on linux-x64
16-12-2024
Below two tests intermittent timed out also. gc/stress/gcold/TestGCOldWithShenandoah.java#generational gc/shenandoah/TestSmallHeap.java#generational
14-12-2024

Duplicate :	JDK-8351231 - Test TestClone.java#generational-small-card-size intermittent timed out
Duplicate :	JDK-8345865 - RISC-V: Test gc/shenandoah/TestSieveObjects.java#generational timed out
Relates :	JDK-8337511 - Implement JEP 404: Generational Shenandoah (Experimental)