--- a/hotspot/src/share/vm/runtime/frame.hpp	Tue Aug 02 20:55:27 2016 -0700
+++ b/hotspot/src/share/vm/runtime/frame.hpp	Wed Aug 03 09:40:21 2016 -0400
@@ -166,6 +166,8 @@
   frame sender_for_interpreter_frame(RegisterMap* map) const;
   frame sender_for_native_frame(RegisterMap* map) const;
 
+  bool is_entry_frame_valid(JavaThread* thread) const;
+
   // All frames:
 
   // A low-level interface for vframes: