--- old/src/hotspot/share/gc/shared/space.inline.hpp	2018-05-04 12:36:32.893497236 +0200
+++ new/src/hotspot/share/gc/shared/space.inline.hpp	2018-05-04 12:36:32.645497245 +0200
@@ -377,4 +377,14 @@
   set_saved_mark_word(p);
 }
 
+template <typename OopClosureType>
+void ContiguousSpace::par_oop_iterate(MemRegion mr, OopClosureType* blk) {
+  HeapWord* obj_addr = mr.start();
+  HeapWord* t = mr.end();
+  while (obj_addr < t) {
+    assert(oopDesc::is_oop(oop(obj_addr)), "Should be an oop");
+    obj_addr += oop(obj_addr)->oop_iterate_size(blk);
+  }
+}
+
 #endif // SHARE_VM_GC_SHARED_SPACE_INLINE_HPP