RFR: Merge openjdk/jdk21u:master

[William Kemper]

Merges tag jdk-21.0.7+1

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Commit messages:
 - 8345468: test/jdk/javax/swing/JScrollBar/4865918/bug4865918.java fails in ubuntu22.04
 - 8348625: [21u, 17u] Revert JDK-8185862 to restore old java.awt.headless behavior on Windows
 - 8347427: JTabbedPane/8134116/Bug8134116.java has no license header
 - 8332494: java/util/zip/EntryCount64k.java failing with java.lang.RuntimeException: '\\A\\Z' missing from stderr
 - 8343378: Exceptions in javax/management DeadLockTest.java do not cause test failure
 - 8327986: ASAN reports use-after-free in DirectivesParserTest.empty_object_vm
 - 8328387: Convert java/awt/Frame/FrameStateTest/FrameStateTest.html applet test to main
 - 8327098: GTest needs larger combination limit
 - 8315486: vmTestbase/nsk/jdwp/ThreadReference/ForceEarlyReturn/forceEarlyReturn002/forceEarlyReturn002.java timed out
 - 8347129: cpuset cgroups controller is required for no good reason
 - ... and 157 more: https://git.openjdk.org/shenandoah-jdk21u/compare/7069f193...d2cbada0

The webrev contains the conflicts with master:
 - merge conflicts: https://webrevs.openjdk.org/?repo=shenandoah-jdk21u&pr=154&range=00.conflicts

Changes: https://git.openjdk.org/shenandoah-jdk21u/pull/154/files
  Stats: 61790 lines in 579 files changed: 15357 ins; 6745 del; 39688 mod
  Patch: https://git.openjdk.org/shenandoah-jdk21u/pull/154.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk21u.git pull/154/head:pull/154

PR: https://git.openjdk.org/shenandoah-jdk21u/pull/154