[jdk21u-dev] RFR: Merge jdk21u:master

[Goetz Lindenmaier]

Merge build tag 21.0.9+8 from jdk21u to jdk21u-dev

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Commit messages:
 - Merge
 - 8367388: Tests start to fail on JDK-21 after JDK-8351907

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

Changes: https://git.openjdk.org/jdk21u-dev/pull/2266/files
  Stats: 7 lines in 1 file changed: 6 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2266.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2266/head:pull/2266

PR: https://git.openjdk.org/jdk21u-dev/pull/2266