hg: jdk/sandbox: 2 new changesets

[chris.hegarty at oracle.com]

Changeset: 946e395dc578
Author:    shade
Date:      2020-04-07 13:18 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/946e395dc578

8242271: Shenandoah: add test to verify GC mode unlock
Reviewed-by: rkennke

+ test/hotspot/jtreg/gc/shenandoah/options/TestModeUnlock.java

Changeset: 142c56cfa14a
Author:    shade
Date:      2020-04-07 13:18 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/142c56cfa14a

8242273: Shenandoah: accept either SATB or IU barriers, but not both
Reviewed-by: rkennke

! src/hotspot/share/gc/shenandoah/heuristics/shenandoahAggressiveHeuristics.cpp
! src/hotspot/share/gc/shenandoah/heuristics/shenandoahCompactHeuristics.cpp
! src/hotspot/share/gc/shenandoah/heuristics/shenandoahStaticHeuristics.cpp
! src/hotspot/share/gc/shenandoah/shenandoahHeuristics.hpp
! src/hotspot/share/gc/shenandoah/shenandoahIUMode.cpp
! src/hotspot/share/gc/shenandoah/shenandoahMode.hpp
! src/hotspot/share/gc/shenandoah/shenandoahNormalMode.cpp
! test/hotspot/jtreg/gc/shenandoah/options/TestWrongBarrierDisable.java
+ test/hotspot/jtreg/gc/shenandoah/options/TestWrongBarrierEnable.java