src/share/vm/runtime/frame.hpp

*** 179,188 ****
--- 179,190 ----
    frame sender_for_compiled_frame(RegisterMap* map) const;
    frame sender_for_entry_frame(RegisterMap* map) const;
    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:
  
   public: