RFR: Merge openjdk/jdk:master [v2]

[William Kemper]

> Merges tag jdk-24+21

William Kemper has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 63 commits:

 - Merge tag jdk-24+21
 - 8342681: TestLoadBypassesNullCheck.java fails improperly specified VM option
   
   Reviewed-by: shade
 - 8342609: jpackage test helper function incorrectly removes a directory instead of its contents only
   
   Reviewed-by: almatvee
 - 8342715: x86 unused orw instruction encoding could be removed
   
   Reviewed-by: sviswanathan, jbhateja, kvn
 - 8342011: Conditionally compile ReservedHeapSpace compressed heap support
   
   Reviewed-by: stefank, dholmes
 - 8338570: sun/font/HBShaper - mismatch in return type of FFM upcall function description and native invocation
   
   Reviewed-by: serb, aivanov
 - 8340477: Remove JDK1.1 compatible behavior for "EST", "MST", and "HST" time zones
   
   Reviewed-by: iris, jlu, joehw
 - 8342698: Fix order of @param tags in module java.base
   
   Reviewed-by: iris
 - 8335271: Specify the MessageFormat ArgumentIndex Implementation Limit
   
   Reviewed-by: darcy, iris, naoto, rriggs
 - 8339507: Test generation tool and gtest for testing APX encoding of extended gpr instructions
   
   Reviewed-by: jbhateja, sviswanathan, kvn
 - ... and 53 more: https://git.openjdk.org/shenandoah/compare/1b751ad1...707d0c97

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Changes: https://git.openjdk.org/shenandoah/pull/528/files
  Webrev: https://webrevs.openjdk.org/?repo=shenandoah&pr=528&range=01
  Stats: 94702 lines in 423 files changed: 92105 ins; 1978 del; 619 mod
  Patch: https://git.openjdk.org/shenandoah/pull/528.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah.git pull/528/head:pull/528

PR: https://git.openjdk.org/shenandoah/pull/528