--- old/src/hotspot/share/gc/cms/compactibleFreeListSpace.cpp	2018-03-21 16:40:58.023888389 +0100
+++ new/src/hotspot/share/gc/cms/compactibleFreeListSpace.cpp	2018-03-21 16:40:57.815888396 +0100
@@ -37,6 +37,8 @@
 #include "memory/allocation.inline.hpp"
 #include "memory/resourceArea.hpp"
 #include "memory/universe.hpp"
+#include "oops/access.inline.hpp"
+#include "oops/compressedOops.inline.hpp"
 #include "oops/oop.inline.hpp"
 #include "runtime/globals.hpp"
 #include "runtime/handles.inline.hpp"
@@ -2250,9 +2252,9 @@
   }
 
   template <class T> void do_oop_work(T* p) {
-    T heap_oop = oopDesc::load_heap_oop(p);
-    if (!oopDesc::is_null(heap_oop)) {
-      oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
+    T heap_oop = RawAccess<>::oop_load(p);
+    if (!CompressedOops::is_null(heap_oop)) {
+      oop obj = CompressedOops::decode_not_null(heap_oop);
       do_oop(p, obj);
     }
   }