hg: jdk/jdk: 3 new changesets

[shade at redhat.com]

Changeset: 13e041be4e5c
Author:    shade
Date:      2019-09-19 20:26 +0200
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/13e041be4e5c

8231197: Shenandoah: JVMTI heap walking cleanup crashes with NULL forwardee
Reviewed-by: zgu, rkennke

! src/hotspot/share/gc/shenandoah/shenandoahCodeRoots.cpp
! src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp

Changeset: de9d23469c68
Author:    shade
Date:      2019-09-19 20:26 +0200
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/de9d23469c68

8231198: Shenandoah: heap walking should visit all roots most of the time
Reviewed-by: zgu, rkennke

! src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp

Changeset: 89033e6641ed
Author:    shade
Date:      2019-09-19 20:26 +0200
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/89033e6641ed

8231244: Shenandoah: all-roots heap walking misses some weak roots
Reviewed-by: zgu, rkennke

! src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.cpp
! src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.hpp