RFR: 8325397: sun/java2d/Disposer/TestDisposerRace.java fails in linux-aarch64

[Viktor Klang]

My suspicion is that Condition::await() throws before having successfully reacquired the lock, and this exception is swallowed because Lock::unlock() then throws when invoke with an IllegalMonitorStateException as the current thread was not reestablished as the owner.

So this PR is intended to harden the reacquisition of await-ing methods in AQS and AQLS so that instead of throwing they spin-loop trying to reacquire the lock—at least a thread dump would show where the Thread is stuck trying to reacquire.

There's also the option of attempting to log a JFR event on the first reacquisition failure, but that might need to be done with a pre-created event as the cause of the failing acquisition may be an OOME.

I also needed to harden the TestDisposerRace itself, as it currently tries to provoke OOMEs but then proceeds to want to allocate objects used for the test itself. I'm not super-happy about the changes there, but they should be safer than before.

The first RuntimeException/Error encountered will be rethrown upon success to facilitate debugging.

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Commit messages:
 - Harden reacquisition of AQS and AQLS Conditions

Changes: https://git.openjdk.org/jdk/pull/20602/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20602&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8325397
  Stats: 129 lines in 3 files changed: 106 ins; 3 del; 20 mod
  Patch: https://git.openjdk.org/jdk/pull/20602.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20602/head:pull/20602

PR: https://git.openjdk.org/jdk/pull/20602