diff -r 80830caaac6e -r f226ab0b7f21 src/hotspot/share/code/codeCache.hpp
--- a/src/hotspot/share/code/codeCache.hpp	Mon Apr 01 07:34:56 2019 -0400
+++ b/src/hotspot/share/code/codeCache.hpp	Mon Apr 01 09:53:30 2019 -0400
@@ -270,10 +270,16 @@
 
   // Flushing and deoptimization
   static void flush_dependents_on(InstanceKlass* dependee);
+
+  // RedefineClasses support
   // Flushing and deoptimization in case of evolution
   static void mark_for_evol_deoptimization(InstanceKlass* dependee);
   static int  mark_dependents_for_evol_deoptimization();
+  static void mark_all_nmethods_for_evol_deoptimization();
   static void flush_evol_dependents();
+  static void old_nmethods_do(MetadataClosure* f);
+  static void unregister_old_nmethod(CompiledMethod* c);
+
   // Support for fullspeed debugging
   static void flush_dependents_on_method(const methodHandle& dependee);