git: openjdk/mobile: 8237079: gc/g1/mixedgc/TestLogging.java fails with "Pause Young (Mixed) (G1 Evacuation Pause) not found"

[duke]

Changeset: ffcc5826
Author:    Thomas Schatzl <tschatzl at openjdk.org>
Date:      2020-01-23 14:42:49 +0000
URL:       https://git.openjdk.java.net/mobile/commit/ffcc5826

8237079: gc/g1/mixedgc/TestLogging.java fails with "Pause Young (Mixed) (G1 Evacuation Pause) not found"

Factor out multiple attempts at forcing a mixed gc into a single one and update the tests to use the new code. Change command line arguments for the tests to further decrease the possibility of failures.

Reviewed-by: lkorinth, kbarrett

! test/hotspot/jtreg/gc/g1/mixedgc/TestLogging.java
! test/hotspot/jtreg/gc/g1/mixedgc/TestOldGenCollectionUsage.java
+ test/hotspot/jtreg/gc/testlibrary/g1/MixedGCProvoker.java
! test/jdk/jdk/jfr/event/gc/collection/TestG1ParallelPhases.java