--- a/hotspot/src/share/vm/gc_interface/collectedHeap.cpp	Thu Sep 06 07:28:30 2012 -0700
+++ b/hotspot/src/share/vm/gc_interface/collectedHeap.cpp	Fri Sep 07 12:04:16 2012 -0400
@@ -516,7 +516,7 @@
     real_klass->set_java_mirror(mirror);
   }
 
-  instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass());
+  InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(mirror->klass());
   assert(size == mk->instance_size(real_klass), "should have been set");
 
   // notify jvmti and dtrace