[jdk24] RFR: 8345493: JFR: JVM.flush hangs intermittently

[Markus Grönlund]

8345493: JFR: JVM.flush hangs intermittently

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Commit messages:
 - Backport 4257215a9fa02f74ccd4fc62893d4b1a232a8754

Changes: https://git.openjdk.org/jdk/pull/23141/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23141&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8345493
  Stats: 9 lines in 2 files changed: 7 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/23141.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23141/head:pull/23141

PR: https://git.openjdk.org/jdk/pull/23141