authenticate();
checkAuthenticated();
    public Attributes lookup( NextInterceptor next, Name dn, String[] attrIds ) throws NamingException    {    	if ( log.isDebugEnabled() )    	{    		log.debug( "Lookup name = '" + dn.toString() + "', attributes = " + attrIds );    	}        authenticate();        return next.lookup( dn, attrIds );    }