RFR: 8290848: LoadLibraryUnload.java still fails with "Too few cleared WeakReferences"

Tue Jul 26 21:52:38 UTC 2022

The intermittent test failure was due to the WeakReferences being unreferenced too early.
Adding a Reference.reachabilityFence to the test makes it robust.

Remove from ProblemList-Xcomp.txt

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Commit messages:
 - Merge branch 'master' into 8290848-unload-too-few
 - 8290848: LoadLibraryUnload.java still fails with "Too few cleared WeakReferences"

Changes: https://git.openjdk.org/jdk/pull/9649/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=9649&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8290848
  Stats: 10 lines in 2 files changed: 4 ins; 5 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/9649.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9649/head:pull/9649

PR: https://git.openjdk.org/jdk/pull/9649