*** old/src/hotspot/share/opto/mathexactnode.hpp	Tue Jan 16 14:03:21 2018
--- new/src/hotspot/share/opto/mathexactnode.hpp	Tue Jan 16 14:03:21 2018

*** 127,137 ****
--- 127,139 ----
    typedef MulLNode MathOp;
  
    OverflowMulLNode(Node* in1, Node* in2) : OverflowLNode(in1, in2) {}
    virtual int Opcode() const;
  
!   virtual bool will_overflow(jlong v1, jlong v2) const { return is_overflow(v1, v2); }
    virtual bool can_overflow(const Type* t1, const Type* t2) const;
+ 
+   static bool is_overflow(jlong v1, jlong v2);
  };
  
  #endif