diff -r 851b58c26def -r 9509c20bba28 src/share/vm/gc_interface/gcCause.cpp
--- a/src/share/vm/gc_interface/gcCause.cpp	Mon Jan 16 11:21:21 2012 +0100
+++ b/src/share/vm/gc_interface/gcCause.cpp	Mon Jan 16 22:10:05 2012 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -84,6 +84,9 @@
     case _g1_inc_collection_pause:
       return "G1 Evacuation Pause";
 
+    case _g1_humongous_allocation:
+      return "G1 Humongous Allocation";
+
     case _last_ditch_collection:
       return "Last ditch collection";