RFR: 8272364: Parallel GC adaptive size policy may shrink the heap below MinHeapSize [v3]

[Zhengyu Gu]

> This appears to be another miscalculation of gc ergonomics. When `NewSize` is not explicitly set, `MinNewSize` should be derived from `MinHeapSize` using `NewRatio`.
> 
> This pull request has dependency on [PR#18539](https://github.com/openjdk/jdk/pull/18539)

Zhengyu Gu has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 13 commits:

 - Merge branch 'master' into JDK-8272364
 - Merge branch 'JDK-8329223' into JDK-8272364
 - Reverse previous change
 - Check with github action
 - Update copyright
 - 8272364: Parallel GC adaptive size policy may shrink the heap below MinHeapSize
 - Albert's comment
 - Make sure MinOldSize <= OldSize when it is set on the command line
 - Merge branch 'master' into JDK-8329223
 - albertnetymk's suggestion
 - ... and 3 more: https://git.openjdk.org/jdk/compare/aca1e836...e5491398

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Changes: https://git.openjdk.org/jdk/pull/18877/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18877&range=02
  Stats: 3 lines in 1 file changed: 3 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/18877.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18877/head:pull/18877

PR: https://git.openjdk.org/jdk/pull/18877