RFR: Merge jdk20

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-s

RFR: Merge jdk20

Forwardport JDK 20 -> JDK 21 - Commit messages: - Merge remote-tracking branch 'jdk20/master' into Merge_jdk20 - 8301206: Fix issue with LocaleData after JDK-8300719 - 8300953: ClassDesc::ofInternalName missing @since tag - 8300719: JDK 20 RDP2 L10n resource files update The webr

RFR: Merge jdk20

Forwardport JDK 20 -> JDK 21 - Commit messages: - Merge - 8290919: Update nroff pages in JDK 20 before RC The webrevs contain the adjustments done while merging with regards to each parent branch: - master: https://webrevs.openjdk.org/?repo=jdk&pr=12150&range=00.0 - jdk20: https

RFR: Merge jdk20

Forwardport JDK 20 -> JDK 21 - Commit messages: - Merge remote-tracking branch 'jdk20/master' into Merge_jdk20 - 8299476: PPC64 Zero build fails after JDK-8286302 - 8293824: gc/whitebox/TestConcMarkCycleWB.java failed "RuntimeException: assertTrue: expected true, was false" - 829

Re: RFR: Merge jdk20 [v2]

> Forwardport JDK 20 -> JDK 21 Jesper Wilhelmsson has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 107 commits: - Merge remote-tracking branch 'jdk20/master' into Merge_jdk20 - 8298865: Excessive memory allocation in CipherOutputStre

RFR: Merge jdk20

Forwardport JDK 20 -> JDK 21 - Commit messages: - Merge remote-tracking branch 'jdk20/master' into Merge_jdk20 - 8298784: JFR: Test chunk integrity - 8298215: gc/g1/TestVerifyGCType.java failed with "Missing expected verification pattern Verifying After GC for: Pause Young (Prepar