--- a/src/hotspot/share/c1/c1_Runtime1.hpp	Wed Mar 21 08:18:54 2018 +0100
+++ b/src/hotspot/share/c1/c1_Runtime1.hpp	Tue Mar 20 11:41:17 2018 +0100
@@ -186,7 +186,6 @@
 #endif
 
   // directly accessible leaf routine
-  static int  arraycopy(oopDesc* src, int src_pos, oopDesc* dst, int dst_pos, int length);
   static int  is_instance_of(oopDesc* mirror, oopDesc* obj);
 
   static void predicate_failed_trap(JavaThread* thread);