[jdk21u-dev] RFR: 8323635: Test gc/g1/TestHumongousAllocConcurrentStart.java fails with -XX:TieredStopAtLevel=3 [v2]

[Andrew Lu]

> I backport this for parity with 21.0.3-oracle.
> This PR contains a backport of
> https://github.com/openjdk/jdk/commit/5045839cb2095105a5c6c9eebc633a78b1e3213e
> Patch is not clean, this file test/hotspot/jtreg/gc/g1/TestHumongousAllocConcurrentStart.java has changed by the commit
> https://github.com/openjdk/jdk/commit/1d1cd32bc355a33448d8f15555e142570bb49c21
> , I ignored this commits and only change code for this issue.

Andrew Lu has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains three commits:

 - Merge branch 'master' into backport_8323635
 - Backport 5045839cb2095105a5c6c9eebc633a78b1e3213e
 - Backport 5045839cb2095105a5c6c9eebc633a78b1e3213e

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

Changes: https://git.openjdk.org/jdk21u-dev/pull/589/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=589&range=01
  Stats: 3 lines in 1 file changed: 1 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/589.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/589/head:pull/589

PR: https://git.openjdk.org/jdk21u-dev/pull/589