[jdk21u-dev] RFR: 8343378: Exceptions in javax/management DeadLockTest.java do not cause test failure

[Goetz Lindenmaier]

I backport this for parity with 21.0.7-oracle

-------------

Commit messages:
 - Backport 4a70c83bd0c563185123ce9d8a34e006c62db7cc

Changes: https://git.openjdk.org/jdk21u-dev/pull/1360/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1360&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8343378
  Stats: 11 lines in 1 file changed: 4 ins; 1 del; 6 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1360.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1360/head:pull/1360

PR: https://git.openjdk.org/jdk21u-dev/pull/1360