[jdk21u-dev] RFR: 8079786: [macosx] Test java/awt/Frame/DisposeParentGC/DisposeParentGC.java fails for Mac only

[Goetz Lindenmaier]

I backport this for parity with 21.0.9-oracle.

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Commit messages:
 - Backport f67ec19e236e3b4d2d4d4993a7d64b8de052d241

Changes: https://git.openjdk.org/jdk21u-dev/pull/2076/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2076&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8079786
  Stats: 34 lines in 2 files changed: 22 ins; 2 del; 10 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2076.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2076/head:pull/2076

PR: https://git.openjdk.org/jdk21u-dev/pull/2076