--- a/src/hotspot/share/runtime/sharedRuntime.hpp	Fri Feb 23 12:47:36 2018 +0100
+++ b/src/hotspot/share/runtime/sharedRuntime.hpp	Fri Feb 23 07:47:29 2018 -0500
@@ -318,7 +318,7 @@
   // The caller (or one of it's callers) must use a ResourceMark
   // in order to correctly free the result.
   //
-  static char* generate_class_cast_message(Klass* caster_klass, Klass* target_klass);
+  static char* generate_class_cast_message(Klass* caster_klass, Klass* target_klass, Symbol* target_klass_name = NULL);
 
   // Resolves a call site- may patch in the destination of the call into the
   // compiled code.