RFR: 8317218: G1: Make TestG1HeapRegionSize use createTestJvm

[Leo Korinth]

On Thu, 28 Sep 2023 09:07:04 GMT, Leo Korinth <lkorinth at openjdk.org> wrote:

> Tested with:
> `make run-test TEST=open/test/hotspot/jtreg/gc/arguments/TestG1HeapRegionSize.java JTREG='JAVA_OPTIONS=-XX:+UseG1GC'` -> PASS 1
> `make run-test TEST=open/test/hotspot/jtreg/gc/arguments/TestG1HeapRegionSize.java JTREG='JAVA_OPTIONS=-XX:+UseZGC'` -> TOTAL 0
> `make run-test TEST=open/test/hotspot/jtreg/gc/arguments/TestG1HeapRegionSize.java JTREG='JAVA_OPTIONS=-XX:G1HeapRegionSize=80000'` > TOTAL 0
> `make run-test TEST=open/test/hotspot/jtreg/gc/arguments/TestG1HeapRegionSize.java JTREG='JAVA_OPTIONS='` -> PASS 1

Thanks Hamlin and Thomas!

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PR Comment: https://git.openjdk.org/jdk/pull/15959#issuecomment-1766264530