[jdk21u-dev] RFR: 8317965: TestLoadLibraryDeadlock.java fails with "Unable to load native library.: expected true, was false"

[Goetz Lindenmaier]

I backport this for parity with 21.0.4-oracle.

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Commit messages:
 - Backport 5207443b360cfe3ee9c53ece55da3464c13f6a9f

Changes: https://git.openjdk.org/jdk21u-dev/pull/423/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=423&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8317965
  Stats: 108 lines in 2 files changed: 16 ins; 73 del; 19 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/423.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/423/head:pull/423

PR: https://git.openjdk.org/jdk21u-dev/pull/423