hg: jdk9/hs-rt/hotspot: 8072439: fix for 8047720 may need more work

[daniel.daugherty at oracle.com]

Changeset: 15b8ca9c2885
Author:    dcubed
Date:      2015-03-02 16:31 -0800
URL:       http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/15b8ca9c2885

8072439: fix for 8047720 may need more work
Summary: Cleanup PeriodTask_lock usage. Also reviewed by varming at gmail.com.
Reviewed-by: dholmes, dcubed, mgronlun, coleenp
Contributed-by: varming at gmail.com, daniel.daugherty at oracle.com

! src/share/vm/runtime/java.cpp
! src/share/vm/runtime/task.cpp
! src/share/vm/runtime/task.hpp
! src/share/vm/runtime/thread.cpp
! src/share/vm/runtime/thread.hpp