--- old/src/share/vm/gc/parallel/psYoungGen.hpp	2016-04-06 17:17:31.030383745 +0200
+++ new/src/share/vm/gc/parallel/psYoungGen.hpp	2016-04-06 17:17:30.926383744 +0200
@@ -162,7 +162,7 @@
     return result;
   }
 
-  HeapWord** top_addr() const   { return eden_space()->top_addr(); }
+  HeapWord* volatile* top_addr() const   { return eden_space()->top_addr(); }
   HeapWord** end_addr() const   { return eden_space()->end_addr(); }
 
   // Iteration.