[jdk21u-dev] RFR: 8333270: HandlersOnComplexResetUpdate and HandlersOnComplexUpdate tests fail with "Unexpected reference" if timeoutFactor is less than 1/3

[Andrew Lu]

I backport this for parity with 21.0.5-oracle.

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Commit messages:
 - Backport d02cb742f79e88c6438ca58a6357fe432fb286cb

Changes: https://git.openjdk.org/jdk21u-dev/pull/811/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=811&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8333270
  Stats: 16 lines in 2 files changed: 0 ins; 2 del; 14 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/811.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/811/head:pull/811

PR: https://git.openjdk.org/jdk21u-dev/pull/811