[jdk21u-dev] RFR: 8348402: PerfDataManager stalls shutdown for 1ms [v2]

[Goetz Lindenmaier]

> I backport this for parity with 21.0.9-oracle.
> 
> src/hotspot/share/runtime/objectMonitor.cpp
> Resolved as comments in context are different.
> 
> src/hotspot/share/runtime/perfData.hpp
> Copyright
> 
> src/hotspot/share/runtime/synchronizer.cpp
> Resolved #include.

Goetz Lindenmaier has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'openjdk:master' into goetz_backport_8348402
 - backport 305bbdae7fe40e33cf2baa100c134bd85ecaa553

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

Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/2058/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/2058/files/4d0159bf..c0e8c26f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2058&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2058&range=00-01

  Stats: 13603 lines in 257 files changed: 8815 ins; 4263 del; 525 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2058.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2058/head:pull/2058

PR: https://git.openjdk.org/jdk21u-dev/pull/2058