--- old/src/share/vm/opto/parseHelper.cpp	2013-10-17 18:54:53.286193767 +0200
+++ new/src/share/vm/opto/parseHelper.cpp	2013-10-17 18:54:53.112476524 +0200
@@ -128,7 +128,7 @@
   }
 
   // Push the bool result back on stack
-  Node* res = gen_instanceof(peek(), makecon(TypeKlassPtr::make(klass)));
+  Node* res = gen_instanceof(peek(), makecon(TypeKlassPtr::make(klass)), true);
 
   // Pop from stack AFTER gen_instanceof because it can uncommon trap.
   pop();