hg: jdk/sandbox: 8224875: Shenandoah: ParallelCleaning code unloading should take lock to protect shared code roots array

[chris.hegarty at oracle.com]

Changeset: 934d68e9c45d
Author:    zgu
Date:      2019-05-29 10:57 -0400
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/934d68e9c45d

8224875: Shenandoah: ParallelCleaning code unloading should take lock to protect shared code roots array
Reviewed-by: shade

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