[jdk17u-dev] RFR: 8315721: CloseRace.java#id0 fails transiently on libgraal

[Goetz Lindenmaier]

I backport this for parity with 17.0.16-oracle

Needed to resolve as generational ZGC is not in 17.

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Commit messages:
 - backport 1be355734da94243e29f0899b53aa1ebdf3bcb79

Changes: https://git.openjdk.org/jdk17u-dev/pull/3485/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3485&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315721
  Stats: 3 lines in 1 file changed: 2 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3485.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3485/head:pull/3485

PR: https://git.openjdk.org/jdk17u-dev/pull/3485