--- old/src/share/vm/gc/parallel/cardTableExtension.cpp	2017-08-17 11:31:23.313627403 -0400
+++ new/src/share/vm/gc/parallel/cardTableExtension.cpp	2017-08-17 11:31:22.952307994 -0400
@@ -287,7 +287,7 @@
           while (p < to) {
             Prefetch::write(p, interval);
             oop m = oop(p);
-            assert(m->is_oop_or_null(), "Expected an oop or NULL for header field at " PTR_FORMAT, p2i(m));
+            assert(oopDesc::is_oop_or_null(m), "Expected an oop or NULL for header field at " PTR_FORMAT, p2i(m));
             pm->push_contents(m);
             p += m->size();
           }
@@ -295,7 +295,7 @@
         } else {
           while (p < to) {
             oop m = oop(p);
-            assert(m->is_oop_or_null(), "Expected an oop or NULL for header field at " PTR_FORMAT, p2i(m));
+            assert(oopDesc::is_oop_or_null(m), "Expected an oop or NULL for header field at " PTR_FORMAT, p2i(m));
             pm->push_contents(m);
             p += m->size();
           }