[jdk17u-dev] RFR: 8279597: [TESTBUG] ReturnBlobToWrongHeapTest.java fails with -XX:TieredStopAtLevel=1 on machines with many cores

[Martin Doerr]

Clean backport of JDK-8279597.

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Commit messages:
 - Backport 45f20633f66af51f017b884dc85637e8f3547d85

Changes: https://git.openjdk.java.net/jdk17u-dev/pull/352/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u-dev&pr=352&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8279597
  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk17u-dev/pull/352.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u-dev pull/352/head:pull/352

PR: https://git.openjdk.java.net/jdk17u-dev/pull/352