diff -r bd0d881cf1c5 -r df0a1573d5bd hotspot/src/share/vm/runtime/javaCalls.cpp
--- a/hotspot/src/share/vm/runtime/javaCalls.cpp	Thu Oct 04 14:55:57 2012 +0200
+++ b/hotspot/src/share/vm/runtime/javaCalls.cpp	Tue Nov 06 15:09:37 2012 -0500
@@ -189,7 +189,7 @@
   assert(method->name() == vmSymbols::object_initializer_name(),    "Should only be called for default constructor");
   assert(method->signature() == vmSymbols::void_method_signature(), "Should only be called for default constructor");
 
-  InstanceKlass* ik = InstanceKlass::cast(method->method_holder());
+  InstanceKlass* ik = method->method_holder();
   if (ik->is_initialized() && ik->has_vanilla_constructor()) {
     // safe to skip constructor call
   } else {
@@ -344,11 +344,11 @@
 
 
 #ifdef ASSERT
-  { Klass* holder = method->method_holder();
+  { InstanceKlass* holder = method->method_holder();
     // A klass might not be initialized since JavaCall's might be used during the executing of
     // the <clinit>. For example, a Thread.start might start executing on an object that is
     // not fully initialized! (bad Java programming style)
-    assert(InstanceKlass::cast(holder)->is_linked(), "rewritting must have taken place");
+    assert(holder->is_linked(), "rewritting must have taken place");
   }
 #endif