--- old/src/share/vm/gc/g1/g1CollectedHeap.cpp	2017-06-12 10:25:09.190269168 -0700
+++ new/src/share/vm/gc/g1/g1CollectedHeap.cpp	2017-06-12 10:25:09.070269635 -0700
@@ -75,6 +75,7 @@
 #include "memory/resourceArea.hpp"
 #include "oops/oop.inline.hpp"
 #include "runtime/atomic.hpp"
+#include "runtime/heapMonitoring.hpp"
 #include "runtime/init.hpp"
 #include "runtime/orderAccess.inline.hpp"
 #include "runtime/vmThread.hpp"
@@ -4507,6 +4508,7 @@
 
     G1STWIsAliveClosure is_alive(this);
     G1KeepAliveClosure keep_alive(this);
+    HeapMonitoring::do_weak_oops(NULL, &is_alive, &keep_alive, NULL);
     G1StringDedup::unlink_or_oops_do(&is_alive, &keep_alive, true, g1_policy()->phase_times());
 
     double fixup_time_ms = (os::elapsedTime() - fixup_start) * 1000.0;