RFR: Merge jdk19

[Jesper Wilhelmsson]

Forwardport JDK 19 -> JDK 20

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Commit messages:
 - Merge
 - 8287971: Throw exception for missing values in .jpackage.xml
 - 8288761: SegmentAllocator:allocate(long bytesSize) not throwing IAEx when bytesSize < 0
 - 8288754: GCC 12 fails to build zReferenceProcessor.cpp
 - 8286103: VThreadMonitorTest fails "assert(!current->cont_fastpath() || (current->cont_fastpath_thread_state() && !interpreted_native_or_deoptimized_on_stack(current))) failed"
 - 8278053: serviceability/jvmti/vthread/ContStackDepthTest/ContStackDepthTest.java failing in loom repo with Xcomp
 - 8288532: additional review changes for JDK-8286830
 - 8288139: JavaThread touches oop after GC barrier is detached
 - 8288497: add support for JavaThread::is_oop_safe()
 - 8288531: Empty spans in mobile navigation markup
 - ... and 2 more: https://git.openjdk.org/jdk/compare/9f8bfab2...cfe52474

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=jdk&pr=9227&range=00.0
 - jdk19: https://webrevs.openjdk.org/?repo=jdk&pr=9227&range=00.1

Changes: https://git.openjdk.org/jdk/pull/9227/files
  Stats: 363 lines in 31 files changed: 197 ins; 103 del; 63 mod
  Patch: https://git.openjdk.org/jdk/pull/9227.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9227/head:pull/9227

PR: https://git.openjdk.org/jdk/pull/9227