Forwardport JDK 20 -> JDK 21 -------------
Commit messages: - Merge remote-tracking branch 'jdk20/master' into Merge_jdk20 - 8298377: JfrVframeStream causes deadlocks in ZGC - 8299891: JMX ObjectInputFilter additional classes needed The merge commit only contains trivial merges, so no merge-specific webrevs have been generated. Changes: https://git.openjdk.org/jdk/pull/12374/files Stats: 158 lines in 2 files changed: 145 ins; 0 del; 13 mod Patch: https://git.openjdk.org/jdk/pull/12374.diff Fetch: git fetch https://git.openjdk.org/jdk pull/12374/head:pull/12374 PR: https://git.openjdk.org/jdk/pull/12374
