hg: jdk/sandbox: 8215047: Task terminators do not complete termination in consistent state

[chris.hegarty at oracle.com]

Changeset: 2c38991dd9b0
Author:    zgu
Date:      2019-01-29 08:39 -0500
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/2c38991dd9b0

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