Near the end of the test, the debuggee forces a GC so ClassUnloadEvents will be generated, and then the debuggee immediately exits. However, the ClassUnloadEvents might not be sent out before the VMDeath is generated, and it prevents delivery of any more events. A short delay after the GC should give the JVM time to deliver the ClassUnloadEvents first.
Note, I was not able to reproduce this issue, so I'm not 100% sure this will fix it. It does turn up in CI testing, so this seems worth trying to see if we still see it during CI. ------------- Commit messages: - Add short delay to give chance to deliver ClassUnloadEvents before VMDeathEvent is generated Changes: https://git.openjdk.org/jdk/pull/9708/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=9708&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8291650 Stats: 7 lines in 1 file changed: 7 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/9708.diff Fetch: git fetch https://git.openjdk.org/jdk pull/9708/head:pull/9708 PR: https://git.openjdk.org/jdk/pull/9708
