RFR: 8282651: ZGC: vmTestbase/gc/ArrayJuggle/ tests fails intermittently with exit code 97

[Ramkumar Sunderbabu]

In systems with many cores, lots of threads create arrays very quickly and result in OOM. The intention of the ArrayJuggle tests is not to stress gc but to do array juggling. Hence number of objects juggling can be restricted to a minimum so that we don't face OOM even when threads available are high.

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Commit messages:
 - 8282651: ZGC: vmTestbase/gc/ArrayJuggle/ tests fails intermittently with exit code 97
 - 8282651: ZGC: vmTestbase/gc/ArrayJuggle/ tests fails intermittently with exit code 97
 - 8282651: ZGC: vmTestbase/gc/ArrayJuggle/ tests fails intermittently with exit code 97
 - 8282651: ZGC: vmTestbase/gc/ArrayJuggle/ tests fails intermittently with exit code 97
 - 8282651: ZGC: vmTestbase/gc/ArrayJuggle/ tests fails intermittently with exit code 97
 - 8282651: ZGC: vmTestbase/gc/ArrayJuggle/ tests fails intermittently with exit code 97

Changes: https://git.openjdk.org/jdk/pull/11830/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11830&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8282651
  Stats: 202 lines in 34 files changed: 141 ins; 0 del; 61 mod
  Patch: https://git.openjdk.org/jdk/pull/11830.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11830/head:pull/11830

PR: https://git.openjdk.org/jdk/pull/11830