[jdk17u-dev] RFR: 8305994: Guarantee eventual async monitor deflation

[Aleksey Shipilev]

Unclean backport to provide monitor deflation safeguards. Patch applies cleanly, but the test implicitly relies on the logging message added by [JDK-8291418](https://github.com/openjdk/jdk/commit/6065516bb3e0e445e9383718f539ec48440d6290#diff-3ff738a107928467669ff157a9bc20b2950c378a21ada38ac69237261a480985R1547). That change is too risky to backport, so I just pulled the logging message to make test work.

There are a few follow-ups to this work, see dependent PRs.

Additional testing:
 - [x] macos-aarch64-server-fastdebug, `runtime/Monitor`

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Commit messages:
 - Cherry-pick logging message from JDK-8291418
 - Backport 6b81342c2215041dbb7e9020a67cdc56976c97b1

Changes: https://git.openjdk.org/jdk17u-dev/pull/1316/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1316&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8305994
  Stats: 275 lines in 4 files changed: 270 ins; 2 del; 3 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1316.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1316/head:pull/1316

PR: https://git.openjdk.org/jdk17u-dev/pull/1316