[jdk21u-dev] RFR: 8350786: Some java/lang jtreg tests miss requires vm.hasJFR

[Matthias Baesken]

backport has only 2 files not 3 (test/jdk/java/lang/Thread/virtual/MonitorPinnedEvents.java not there)

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Commit messages:
 - Backport 7a47dcb97ba3f7b8bf4d9ddfa3f51c5195fe2aa2

Changes: https://git.openjdk.org/jdk21u-dev/pull/1530/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1530&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8350786
  Stats: 3 lines in 2 files changed: 1 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1530.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1530/head:pull/1530

PR: https://git.openjdk.org/jdk21u-dev/pull/1530