--- a/hotspot/src/share/vm/oops/klass.cpp	Wed May 08 21:06:46 2013 -0400
+++ b/hotspot/src/share/vm/oops/klass.cpp	Fri May 10 08:27:30 2013 -0700
@@ -50,7 +50,7 @@
   if (_name != NULL) _name->increment_refcount();
 }
 
-bool Klass::is_subclass_of(Klass* k) const {
+bool Klass::is_subclass_of(const Klass* k) const {
   // Run up the super chain and check
   if (this == k) return true;