--- old/src/share/vm/runtime/os.cpp	2017-08-17 11:34:41.875803334 -0400
+++ new/src/share/vm/runtime/os.cpp	2017-08-17 11:34:41.643607880 -0400
@@ -988,7 +988,7 @@
     // See if we were just given an oop directly
     if (p != NULL && Universe::heap()->block_is_obj(p)) {
       print = true;
-    } else if (p == NULL && ((oopDesc*)addr)->is_oop()) {
+    } else if (p == NULL && oopDesc::is_oop(oop(addr))) {
       p = (HeapWord*) addr;
       print = true;
     }