--- a/src/hotspot/share/aot/aotLoader.hpp	Fri Mar 15 18:59:21 2019 +0100
+++ b/src/hotspot/share/aot/aotLoader.hpp	Fri Mar 15 16:00:18 2019 -0400
@@ -62,7 +62,7 @@
   static void load_for_klass(InstanceKlass* ik, Thread* thread) NOT_AOT_RETURN;
   static uint64_t get_saved_fingerprint(InstanceKlass* ik) NOT_AOT({ return 0; });
   static void oops_do(OopClosure* f) NOT_AOT_RETURN;
-  static void metadata_do(void f(Metadata*)) NOT_AOT_RETURN;
+  static void metadata_do(MetadataClosure* f) NOT_AOT_RETURN;
   static void mark_evol_dependent_methods(InstanceKlass* dependee) NOT_AOT_RETURN;
 
   NOT_PRODUCT( static void print_statistics() NOT_AOT_RETURN; )