[lworld] RFR: Merge jdk

[David Simms]

Merge tag 'jdk-18+9'

# Conflicts:
#	src/hotspot/cpu/aarch64/aarch64.ad
#	src/hotspot/cpu/aarch64/c1_LIRGenerator_aarch64.cpp
#	src/hotspot/cpu/aarch64/c1_MacroAssembler_aarch64.hpp
#	src/hotspot/share/opto/compile.cpp
#	src/java.base/share/classes/java/lang/Class.java
#	test/hotspot/jtreg/ProblemList.txt

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Commit messages:
 - Merge tag 'jdk-18+9' into lworld_merge_jdk_18_9
 - 8265057: G1: Investigate removal of maintenance of two BOT thresholds
 - 8256844: Make NMT late-initializable
 - 6350025: API documentation for JOptionPane using deprecated methods.
 - 8270893: IndexOutOfBoundsException while reading large TIFF file
 - 8271836: runtime/ErrorHandling/ClassPathEnvVar.java fails with release VMs
 - 8264543: Cross modify fence optimization for x86
 - 8271824: mark hotspot runtime/CompressedOops tests which ignore external VM flags
 - 8271828: mark hotspot runtime/classFileParserBug tests which ignore external VM flags
 - 8271825: mark hotspot runtime/LoadClass tests which ignore external VM flags
 - ... and 70 more: https://git.openjdk.java.net/valhalla/compare/dcfafdb4...2d7d45f7

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - lworld: https://webrevs.openjdk.java.net/?repo=valhalla&pr=524&range=00.0
 - jdk: https://webrevs.openjdk.java.net/?repo=valhalla&pr=524&range=00.1

Changes: https://git.openjdk.java.net/valhalla/pull/524/files
  Stats: 36032 lines in 277 files changed: 33259 ins; 1620 del; 1153 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/524.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/524/head:pull/524

PR: https://git.openjdk.java.net/valhalla/pull/524