*** old/src/share/vm/code/codeBlob.hpp	Wed Oct 28 19:30:46 2009
--- new/src/share/vm/code/codeBlob.hpp	Wed Oct 28 19:30:46 2009

*** 1,7 ****
--- 1,7 ----
  /*
!  * Copyright 1998-2007 Sun Microsystems, Inc.  All Rights Reserved.
!  * Copyright 1998-2009 Sun Microsystems, Inc.  All Rights Reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.

*** 100,109 ****
--- 100,112 ----
    virtual bool is_adapter_blob() const           { return false; }
  
    virtual bool is_compiled_by_c2() const         { return false; }
    virtual bool is_compiled_by_c1() const         { return false; }
  
+   // Casting
+   nmethod* as_nmethod_or_null()                  { return is_nmethod() ? (nmethod*) this : NULL; }
+ 
    // Boundaries
    address    header_begin() const                { return (address)    this; }
    address    header_end() const                  { return ((address)   this) + _header_size; };
    relocInfo* relocation_begin() const            { return (relocInfo*) header_end(); };
    relocInfo* relocation_end() const              { return (relocInfo*)(header_end()   + _relocation_size); }