[jdk21u-dev] RFR: 8332936: Test vmTestbase/metaspace/gc/watermark_70_80/TestDescription.java fails with no GC's recorded

[Andrew Lu]

I backport this for parity with 21.0.5-oracle.

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Commit messages:
 - Backport 5ed0d52c8424dd2e7f1ac2404e9fabb40c8402b8

Changes: https://git.openjdk.org/jdk21u-dev/pull/739/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=739&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8332936
  Stats: 4 lines in 4 files changed: 4 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/739.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/739/head:pull/739

PR: https://git.openjdk.org/jdk21u-dev/pull/739