hg: jdk-updates/jdk12u: 2 new changesets

[zgu at redhat.com]

Changeset: 4c8d166c7e71
Author:    zgu
Date:      2019-01-29 12:12 -0500
URL:       http://hg.openjdk.java.net/jdk-updates/jdk12u/rev/4c8d166c7e71

8217794: Missing termination check results violation of termination invariant
Reviewed-by: tschatzl, shade

! src/hotspot/share/gc/shared/owstTaskTerminator.cpp

Changeset: 61e437115cbc
Author:    zgu
Date:      2019-01-29 08:39 -0500
URL:       http://hg.openjdk.java.net/jdk-updates/jdk12u/rev/61e437115cbc

8215047: Task terminators do not complete termination in consistent state
Reviewed-by: tschatzl, minqi

! src/hotspot/share/gc/shared/owstTaskTerminator.cpp
! src/hotspot/share/gc/shared/owstTaskTerminator.hpp
! src/hotspot/share/gc/shared/taskqueue.cpp
! src/hotspot/share/gc/shared/taskqueue.hpp