--- old/src/share/vm/gc_implementation/shared/gcWhen.hpp	2015-04-15 12:34:20.797919272 +0200
+++ new/src/share/vm/gc_implementation/shared/gcWhen.hpp	2015-04-15 12:34:20.645914161 +0200
@@ -40,7 +40,7 @@
     switch (when) {
     case BeforeGC: return "Before GC";
     case AfterGC:  return "After GC";
-    default: ShouldNotReachHere(); return NULL;
+    default: ShouldNotReachHere();
     }
   }
 };