RFR: 8319161: GC: Make TestParallelGCThreads use createTestJavaProcessBuilder

[Thomas Schatzl]

On Tue, 31 Oct 2023 16:26:19 GMT, Leo Korinth <lkorinth at openjdk.org> wrote:

> `make run-test TEST=jtreg:test/hotspot/jtreg/gc/arguments/TestParallelGCThreads.java JTREG='VERBOSE=all;JAVA_OPTIONS='` -> pass 1
> `make run-test TEST=jtreg:test/hotspot/jtreg/gc/arguments/TestParallelGCThreads.java JTREG='VERBOSE=all;JAVA_OPTIONS=-XX:ParallelGCThreads=42' ` --> total 0
> `make run-test TEST=jtreg:test/hotspot/jtreg/gc/arguments/TestParallelGCThreads.java JTREG='VERBOSE=all;JAVA_OPTIONS=-XX:+UseG1GC' ` --> total 0
> `make run-test TEST=jtreg:test/hotspot/jtreg/gc/arguments/TestParallelGCThreads.java JTREG='VERBOSE=all;JAVA_OPTIONS=-XX:+UseParallelGC' ` -> total 0
> `make run-test TEST=jtreg:test/hotspot/jtreg/gc/arguments/TestParallelGCThreads.java JTREG='VERBOSE=all;JAVA_OPTIONS=-XX:+UseSerialGC' ` -> total 0
> `make run-test TEST=jtreg:test/hotspot/jtreg/gc/arguments/TestParallelGCThreads.java JTREG='VERBOSE=all;JAVA_OPTIONS=-XX:+UseZGC' `-> total 0
> `make run-test TEST=jtreg:test/hotspot/jtreg/gc/arguments/TestParallelGCThreads.java JTREG='VERBOSE=all;JAVA_OPTIONS=-XX:+UseShenandoahGC' `-> total 0
> `make run-test TEST=jtreg:test/hotspot/jtreg/gc/arguments/TestParallelGCThreads.java JTREG='VERBOSE=all;JAVA_OPTIONS=-XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC' ` -> total 0 
> 
> I will later (before integrating) run this test together with more tests through high tier testing to see that we do not fail when rotating flags.

Marked as reviewed by tschatzl (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/16434#pullrequestreview-1720138072