--- a/hotspot/src/share/vm/gc_interface/gcCause.cpp	Tue Feb 03 15:50:06 2015 +0100
+++ b/hotspot/src/share/vm/gc_interface/gcCause.cpp	Wed Feb 04 22:21:08 2015 +0900
@@ -103,6 +103,9 @@
     case _last_ditch_collection:
       return "Last ditch collection";
 
+    case _dcmd_gc_run:
+      return "Diagnostic Command";
+
     case _last_gc_cause:
       return "ILLEGAL VALUE - last gc cause - ILLEGAL VALUE";