[jdk21u-dev] RFR: 8314832: Few runtime/os tests ignore vm flags

[Goetz Lindenmaier]

I backport this for parity with 21.0.4-oracle.

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Commit messages:
 - Backport fc3e8266929826f8e58bc76fe97423d76bc7be87

Changes: https://git.openjdk.org/jdk21u-dev/pull/361/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=361&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8314832
  Stats: 11 lines in 3 files changed: 11 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/361.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/361/head:pull/361

PR: https://git.openjdk.org/jdk21u-dev/pull/361