[jdk21u-dev] RFR: 8335134: Test com/sun/jdi/BreakpointOnClassPrepare.java timeout

[Andrew Lu]

I backport this for parity with 21.0.5-oracle.

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Commit messages:
 - Backport 4e8cbf884ab1eee9c3110712ab62edc706e948ba

Changes: https://git.openjdk.org/jdk21u-dev/pull/877/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=877&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8335134
  Stats: 9 lines in 1 file changed: 8 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/877.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/877/head:pull/877

PR: https://git.openjdk.org/jdk21u-dev/pull/877