throw new BAD_OPERATION("NamingContextExt expected");
BAD_OPERATION bad = new BAD_OPERATION("NamingContextExt expected"); bad.initCause(ex); throw bad;
  public static NamingContextExt extract(Any a)  {    try      {        return ((NamingContextExtHolder) a.extract_Streamable()).value;      }    catch (ClassCastException ex)      {        throw new BAD_OPERATION("NamingContextExt expected");      }  }