Integrated: 8309329: com/sun/jdi/DeferredStepTest.java fails with virtual threads due to not waiting for threads to exit

[Chris Plummer]

On Thu, 1 Jun 2023 23:03:47 GMT, Chris Plummer <cjplummer at openjdk.org> wrote:

> Virtual threads are always daemon threads, so tests that previously did not explicitly wait for test threads to exit sometimes fail with virtual threads due to the test exiting before the test threads have exited. A join() for each test thread is needed to fix this issue.
> 
> com/sun/jdi/DeferredStepTest.java is one such tests. I looked at the other com/sun/jdi failures listed in [JDK-8285422](https://bugs.openjdk.org/browse/JDK-8285422) and didn't see any others that might be failing for this same reason.
> 
> I tested locally with `JTREG_TEST_THREAD_FACTORY=Virtual`. I'll also run the appropriate mach5 tier that tests com/sun/jdi with virtual threads.

This pull request has now been integrated.

Changeset: 1bb037bd
Author:    Chris Plummer <cjplummer at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/1bb037bdc6cd76a15f85c05d8c1972ac53b9b3cd
Stats:     12 lines in 2 files changed: 9 ins; 1 del; 2 mod

8309329: com/sun/jdi/DeferredStepTest.java fails with virtual threads due to not waiting for threads to exit

Reviewed-by: sspitsyn, lmesnik, amenkov

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PR: https://git.openjdk.org/jdk/pull/14275