[jdk20u] RFR: 8306774: Make runtime/Monitor/GuaranteedAsyncDeflationIntervalTest.java more reliable [v3]

[Aleksey Shipilev]

On Wed, 3 May 2023 14:35:31 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Backport the test reliability fix. The backport was not clean, because there was a conflict in `ProblemList` that took the test away from it. I saw no point in backporting the unclean addition to the problem-list, so this PR just omits any changes to a problemlist.
>> 
>> Additional testing: 
>>  - [x] macos-aarch64-server-fastdebug, `runtime/Monitor`
>>  - [x] Linux x86_64 fastdebug, `tier1 tier2 tier3` (together with #71)
>>  - [x] Linux AArch64 fastdebug, `tier1 tier2 tier3` (together with #71)
>
> Aleksey Shipilev has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains four additional commits since the last revision:
> 
>  - Merge branch 'master' of https://git.openjdk.org/jdk20u into JDK-8306774-gadt-test-improv
>  - Backport 9ad6dc881d285cc26c136f0ef19af5bac0a75022
>  - Merge branch 'master' into JDK-8305994-guarantee-async-deflation
>  - Backport 6b81342c2215041dbb7e9020a67cdc56976c97b1

Push approval is here, integrating 2/3.

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PR Comment: https://git.openjdk.org/jdk20u/pull/70#issuecomment-1533173259