RFR: 8314832: Few runtime/os tests ignore vm flags

[Mikhailo Seledtsov]

8314832: Few runtime/os tests ignore vm flags

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Commit messages:
 - 8314832: Few runtime/os tests ignore vm flags

Changes: https://git.openjdk.org/jdk/pull/15647/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15647&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8314832
  Stats: 11 lines in 3 files changed: 9 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/15647.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15647/head:pull/15647

PR: https://git.openjdk.org/jdk/pull/15647