[jdk11u-dev] RFR: 8342175: MemoryEaterMT fails intermittently with ExceptionInInitializerError

[Aleksey Shipilev]

Another backport to stabilize tests and improve parity.

Additional testing:
 - [x] Linux x86_64 server fastdebug, `make run-test TEST=vmTestbase/gc/gctests/MemoryEaterMT/` passes

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Commit messages:
 - Backport 84ffe87260753973835ea6b88443e28bcaf0122f

Changes: https://git.openjdk.org/jdk11u-dev/pull/3145/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=3145&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8342175
  Stats: 3 lines in 1 file changed: 3 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/3145.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/3145/head:pull/3145

PR: https://git.openjdk.org/jdk11u-dev/pull/3145