RFR: 8328741: serviceability/jvmti/ObjectMonitorUsage/ObjectMonitorUsage.java failed with unexpected owner [v3]

[Serguei Spitsyn]

> This is the test issue. The `WaitingPT3` thread posted the `MonitorWait` event but has not released the `lockCheck` monitor yet. It has been fixed to wait for each `WaitingTask` thread to really reach the `WAITING` state. The same approach is used for `EnteringTask` threads. It has been fixed to wait for each `EnteringTask` thread to reach the `BLOCKED_ON_MONITOR` state.
> 
> Testing:
>  - Reran the test `serviceability/jvmti/ObjectMonitorUsage/ObjectMonitorUsage.java` locally
>  - TBD: submit the mach5 tiers 1-6 as well

Serguei Spitsyn has updated the pull request incrementally with one additional commit since the last revision:

  review: replaced wait with timeout with sleep_ms; fixed one test to use sleep_sec from test lib

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/18778/files
  - new: https://git.openjdk.org/jdk/pull/18778/files/9941c492..68cdd8c7

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18778&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18778&range=01-02

  Stats: 9 lines in 2 files changed: 0 ins; 6 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/18778.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18778/head:pull/18778

PR: https://git.openjdk.org/jdk/pull/18778