RFR: 8295713: runtime/ParallelLoad/SuperWait/SuperWaitTest.java fails intermittently on Windows [v3]

[Coleen Phillimore]

> I added another semaphore so the test will run in the order I want it to.  Alternate suggestions or corrections welcome.
> Running with GHA, and our tier1 in progress.

Coleen Phillimore has updated the pull request incrementally with one additional commit since the last revision:

  Fix the logic some more. Wait for thread2 without being in the class loader locked region, and guard against spuriouss wakeups.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/10822/files
  - new: https://git.openjdk.org/jdk/pull/10822/files/d0089bb7..e24117fc

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10822&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10822&range=01-02

  Stats: 43 lines in 2 files changed: 14 ins; 17 del; 12 mod
  Patch: https://git.openjdk.org/jdk/pull/10822.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10822/head:pull/10822

PR: https://git.openjdk.org/jdk/pull/10822