--- old/src/share/vm/gc_implementation/g1/g1AllocRegion.hpp	2014-04-29 16:53:08.000000000 -0400
+++ new/src/share/vm/gc_implementation/g1/g1AllocRegion.hpp	2014-04-29 16:53:08.000000000 -0400
@@ -184,7 +184,7 @@
 
 class ar_ext_msg : public err_msg {
 public:
-  ar_ext_msg(G1AllocRegion* alloc_region, const char *message) : err_msg("") {
+  ar_ext_msg(G1AllocRegion* alloc_region, const char *message) : err_msg("%s", "") {
     alloc_region->fill_in_ext_msg(this, message);
   }
 };