--- old/src/share/vm/gc/g1/heapRegionRemSet.hpp	2015-10-09 14:50:59.162164000 +0200
+++ new/src/share/vm/gc/g1/heapRegionRemSet.hpp	2015-10-09 14:50:59.021139000 +0200
@@ -222,7 +222,7 @@
 
 public:
   enum Event {
-    Event_EvacStart, Event_EvacEnd, Event_RSUpdateEnd
+    Event_EvacStart, Event_EvacEnd, Event_RSUpdateEnd, Event_illegal
   };
 
 private: