RFR: Merge jdk8u:master

[Andrew John Hughes]

Merge jdk8u392-b03

GHA builds will not work until [JDK-8293107](https://bugs.openjdk.org/browse/JDK-8293107) is merged in 8u462-b01

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Commit messages:
 - Merge jdk8u392-b03
 - 8042726: [TESTBUG] TEST.groups file was not updated after runtime/6925573/SortMethodsTest.java removal
 - 8287663: Add a regression test for JDK-8287073

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=54&range=00.0
 - jdk8u:master: https://webrevs.openjdk.org/?repo=shenandoah-jdk8u&pr=54&range=00.1

Changes: https://git.openjdk.org/shenandoah-jdk8u/pull/54/files
  Stats: 37 lines in 3 files changed: 35 ins; 1 del; 1 mod
  Patch: https://git.openjdk.org/shenandoah-jdk8u/pull/54.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk8u.git pull/54/head:pull/54

PR: https://git.openjdk.org/shenandoah-jdk8u/pull/54