[master] RFR: Merge jdk:jdk-21+20 [v2]

[Thomas Stuefe]

> Merge jdk21+20

Thomas Stuefe has updated the pull request incrementally with one additional commit since the last revision:

  shenandoah-fixes

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

Changes:
  - all: https://git.openjdk.org/lilliput/pull/87/files
  - new: https://git.openjdk.org/lilliput/pull/87/files/e42fae8f..8dd88c38

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=lilliput&pr=87&range=01
 - incr: https://webrevs.openjdk.org/?repo=lilliput&pr=87&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/lilliput/pull/87.diff
  Fetch: git fetch https://git.openjdk.org/lilliput.git pull/87/head:pull/87

PR: https://git.openjdk.org/lilliput/pull/87