RFR: 8342775: [Graal] java/util/concurrent/locks/Lock/OOMEInAQS.java fails OOME thrown from the UncaughtExceptionHandler [v3]

[Tom Rodriguez]

> Deoptimization with escape analysis can fail when trying to rematerialize objects as described in JDK-8227309.  In this test this can happen in Xcomp mode in the framework of the test resulting in a test failure.  Making the number of threads non-final avoids scalar replacement and thus the OOM during deopt.

Tom Rodriguez has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision:

 - Disable test for Graal with Xcomp
 - Merge branch 'master' into tkr-oomeinaqs-ea
 - adjust OOMEInStampedLock.java too
 - Merge branch 'master' into tkr-oomeinaqs-ea
 - 8342775: [Graal] java/util/concurrent/locks/Lock/OOMEInAQS.java fails OOME thrown from the UncaughtExceptionHandler

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Changes:
  - all: https://git.openjdk.org/jdk/pull/21745/files
  - new: https://git.openjdk.org/jdk/pull/21745/files/98f63ef0..7ff217bd

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21745&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21745&range=01-02

  Stats: 41928 lines in 2999 files changed: 19123 ins; 12252 del; 10553 mod
  Patch: https://git.openjdk.org/jdk/pull/21745.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21745/head:pull/21745

PR: https://git.openjdk.org/jdk/pull/21745