RFR: Merge jdk19

[Jesper Wilhelmsson]

Forwardport JDK 19 -> JDK 20

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Commit messages:
 - Merge
 - 8288222: ProblemList serviceability/jvmti/vthread/VThreadNotifyFramePopTest/VThreadNotifyFramePopTest.java
 - 8281445: Document the default value for the override-methods option

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/jdk/pull/9128/files
  Stats: 4 lines in 2 files changed: 3 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/9128.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9128/head:pull/9128

PR: https://git.openjdk.org/jdk/pull/9128