The fix updates `jcmd Thread.dump_to_file`/`HotSpotDiagnosticMXBean.dumpThreads` implementation to report thread which owns parkBlocker.
Testing: tier1..4,hs-tier5-svc ------------- Commit messages: - fix Changes: https://git.openjdk.org/jdk/pull/27457/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27457&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8365057 Stats: 69 lines in 6 files changed: 63 ins; 0 del; 6 mod Patch: https://git.openjdk.org/jdk/pull/27457.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/27457/head:pull/27457 PR: https://git.openjdk.org/jdk/pull/27457
