--- old/src/share/vm/gc/cms/cmsOopClosures.inline.hpp	2017-08-17 11:29:38.665425921 -0400
+++ new/src/share/vm/gc/cms/cmsOopClosures.inline.hpp	2017-08-17 11:29:38.348637568 -0400
@@ -74,7 +74,7 @@
   while (_work_queue->size() > max) {
     oop newOop;
     if (_work_queue->pop_local(newOop)) {
-      assert(newOop->is_oop(), "Expected an oop");
+      assert(oopDesc::is_oop(newOop), "Expected an oop");
       assert(_bit_map->isMarked((HeapWord*)newOop),
              "only grey objects on this stack");
       // iterate over the oops in this oop, marking and pushing