RFR: 8345294: test/jdk/java/lang/Thread/virtual/RetryMonitorEnterWhenPinned.java timeout with JTREG_TEST_THREAD_FACTORY=Virtual [v2]

[Doug Lea]

> Accommodate compensations when checking for missed signals; add a better test for this.

Doug Lea has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains four additional commits since the last revision:

 - Merge branch 'openjdk:master' into JDK-8345294
 - Address review comments
 - test starvation with monitors
 - Accommodate uncompensates in deactivate

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Changes:
  - all: https://git.openjdk.org/jdk/pull/22543/files
  - new: https://git.openjdk.org/jdk/pull/22543/files/dc88c881..efc1e77d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22543&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22543&range=00-01

  Stats: 42646 lines in 635 files changed: 35182 ins; 5277 del; 2187 mod
  Patch: https://git.openjdk.org/jdk/pull/22543.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22543/head:pull/22543

PR: https://git.openjdk.org/jdk/pull/22543