[jdk21u-dev] RFR: 8358577: Test serviceability/jvmti/thread/GetCurrentContendedMonitor/contmon01/contmon01.java failed: unexpexcted monitor object

[Goetz Lindenmaier]

I backport this for parity with 21.0.10-oracle.

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Commit messages:
 - Backport 8f487d26c0f219d4df32be48ff1790e6f98d74a0

Changes: https://git.openjdk.org/jdk21u-dev/pull/2364/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2364&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8358577
  Stats: 3 lines in 1 file changed: 1 ins; 1 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2364.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2364/head:pull/2364

PR: https://git.openjdk.org/jdk21u-dev/pull/2364