RFR: 8335397: Improve reliability of TestRecursiveMonitorChurn.java [v2]

[Axel Boldt-Christmas]

> TestRecursiveMonitorChurn.java currently uses NMT to try and correlate the native memory increase with unwanted inflation.
> 
> Change to instead query the JVM for exact number of inflations via the Whitebox API. This allow us to both be more exact and less dependent on interactions with NMT.

Axel Boldt-Christmas has updated the pull request incrementally with one additional commit since the last revision:

  Update test/hotspot/jtreg/runtime/locking/TestRecursiveMonitorChurn.java

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Changes:
  - all: https://git.openjdk.org/jdk/pull/19965/files
  - new: https://git.openjdk.org/jdk/pull/19965/files/81fd7c07..44279523

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=19965&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=19965&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/19965.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19965/head:pull/19965

PR: https://git.openjdk.org/jdk/pull/19965