[jdk17u-dev] RFR: 8280016: gc/g1/TestShrinkAuxiliaryData30 test fails on large machines

[Aleksey Shipilev]

Clean backport to improve testing.

Additional testing:
 - [x] Affected test passes

-------------

Commit messages:
 - Backport 590eb86033d5445018cd0e961e8721a20de4bb0c

Changes: https://git.openjdk.org/jdk17u-dev/pull/908/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=908&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8280016
  Stats: 92 lines in 2 files changed: 46 ins; 46 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/908.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/908/head:pull/908

PR: https://git.openjdk.org/jdk17u-dev/pull/908