*** old/src/share/vm/classfile/classLoaderData.hpp	Mon Mar 25 16:55:58 2013
--- new/src/share/vm/classfile/classLoaderData.hpp	Mon Mar 25 16:55:58 2013

*** 189,198 ****
--- 189,199 ----
    }
  
    bool is_the_null_class_loader_data() const {
      return this == _the_null_class_loader_data;
    }
+   bool is_ext_class_loader_data() const;
  
    // The Metaspace is created lazily so may be NULL.  This
    // method will allocate a Metaspace if needed.
    Metaspace* metaspace_non_null();