RFR (XS) 8244730: Shenandoah: gc/shenandoah/options/TestHeuristicsUnlock.java should only verify the heuristics

[Roman Kennke]

OK!


Thanks,
Roman

> RFE:
>   https://bugs.openjdk.java.net/browse/JDK-8244730
> 
> gc/shenandoah/options/TestHeuristicsUnlock.java implicitly verifies the unlocking of IU or Passive
> mode. This is unnecessary, as we have /gc/shenandoah/options/TestModeUnlock.java, which does it
> explicitly. Current code works, because it has disabled some checks until Shenandoah is
> non-experimental. But it would break soon. We better off removing mode checks from this test.
> 
> Fix:
> 
> diff -r 158e145e3a42 test/hotspot/jtreg/gc/shenandoah/options/TestHeuristicsUnlock.java
> --- a/test/hotspot/jtreg/gc/shenandoah/options/TestHeuristicsUnlock.java        Sat May 09 13:42:16
> 2020 -0700
> +++ b/test/hotspot/jtreg/gc/shenandoah/options/TestHeuristicsUnlock.java        Mon May 11 14:00:27
> 2020 +0200
> @@ -46,12 +46,8 @@
> 
>      public static void main(String[] args) throws Exception {
> -        testWith("-XX:ShenandoahGCHeuristics=adaptive", Mode.PRODUCT);
> -        testWith("-XX:ShenandoahGCHeuristics=static", Mode.PRODUCT);
> -        testWith("-XX:ShenandoahGCHeuristics=compact", Mode.PRODUCT);
> -
> -        testWith("-XX:ShenandoahGCMode=iu", Mode.EXPERIMENTAL);
> -
> +        testWith("-XX:ShenandoahGCHeuristics=adaptive",   Mode.PRODUCT);
> +        testWith("-XX:ShenandoahGCHeuristics=static",     Mode.PRODUCT);
> +        testWith("-XX:ShenandoahGCHeuristics=compact",    Mode.PRODUCT);
>          testWith("-XX:ShenandoahGCHeuristics=aggressive", Mode.DIAGNOSTIC);
> -        testWith("-XX:ShenandoahGCHeuristics=passive", Mode.DIAGNOSTIC);
>      }
> 
> Testing: hotspot_gc_shenandoah
>