RFR: Merge openjdk/jdk:master [v2]

[William Kemper]

> Merges tag jdk-24+20

William Kemper has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 97 commits:

 - Merge tag 'jdk-24+20' into merge-jdk-24+20
   
   Added tag jdk-24+20 for changeset 7a64fbbb
 - 8338851: Hoist os::Posix::realpath() to os::realpath() and implement on Windows
   
   Reviewed-by: dholmes, stuefe, jwaters
 - 8342338: Remove redundant IIOPURLTest.java
   
   Reviewed-by: cjplummer, amenkov
 - 8341715: PPC64: ObjectMonitor::_owner should be reset unconditionally in nmethod unlocking
   
   Reviewed-by: mdoerr, lucy
 - 8342042: PPC64: compiler_fast_unlock_object flags failure instead of success
   
   Reviewed-by: mdoerr, aboldtch, fbredberg
 - 8340279: Open source several AWT Dialog tests - Batch 2
   
   Reviewed-by: abhiscxk, prr
 - 8341072: Open source several AWT Canvas and Rectangle related tests
   
   Reviewed-by: prr
 - 8341328: Refactor initial Assertion Predicate creation into separate classes
   
   Reviewed-by: thartmann, kvn
 - 8340313: Crash due to invalid oop in nmethod after C1 patching
   
   Reviewed-by: tschatzl, kvn, dlong
 - 8338751: ConfigureNotify behavior has changed in KWin 6.2
   
   Reviewed-by: prr, azvegint, serb
 - ... and 87 more: https://git.openjdk.org/shenandoah/compare/71def7f8...cffd2fa9

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Changes: https://git.openjdk.org/shenandoah/pull/519/files
  Webrev: https://webrevs.openjdk.org/?repo=shenandoah&pr=519&range=01
  Stats: 24434 lines in 541 files changed: 20214 ins; 1645 del; 2575 mod
  Patch: https://git.openjdk.org/shenandoah/pull/519.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah.git pull/519/head:pull/519

PR: https://git.openjdk.org/shenandoah/pull/519