--- old/src/hotspot/share/gc/shared/genCollectedHeap.cpp	2017-10-16 15:55:17.389069309 +0200
+++ new/src/hotspot/share/gc/shared/genCollectedHeap.cpp	2017-10-16 15:55:17.141060962 +0200
@@ -42,6 +42,7 @@
 #include "gc/shared/space.hpp"
 #include "gc/shared/strongRootsScope.hpp"
 #include "gc/shared/vmGCOperations.hpp"
+#include "gc/shared/weakProcessor.hpp"
 #include "gc/shared/workgroup.hpp"
 #include "memory/filemap.hpp"
 #include "memory/resourceArea.hpp"
@@ -721,7 +722,7 @@
 }
 
 void GenCollectedHeap::gen_process_weak_roots(OopClosure* root_closure) {
-  JNIHandles::weak_oops_do(root_closure);
+  WeakProcessor::oops_do(root_closure);
   _young_gen->ref_processor()->weak_oops_do(root_closure);
   _old_gen->ref_processor()->weak_oops_do(root_closure);
 }