RFR: 8337331: crash: pinned virtual thread will lead to jvm crash when running with the javaagent option [v3]

[Jiawei Tang]

> I add the testcase which can reproduce the crash. I hope that I could get some advise if the codes need changing.

Jiawei Tang has updated the pull request incrementally with one additional commit since the last revision:

  changes according to reviewers' advice

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/20373/files
  - new: https://git.openjdk.org/jdk/pull/20373/files/00ec5887..723b1ec6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=20373&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=20373&range=01-02

  Stats: 33 lines in 2 files changed: 1 ins; 26 del; 6 mod
  Patch: https://git.openjdk.org/jdk/pull/20373.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20373/head:pull/20373

PR: https://git.openjdk.org/jdk/pull/20373