* @throws nitro_exception nitro exception is thrown.
* </pre>
*/
public login login() throws Exception
{
login login_obj = new login();
login_obj.set_username(this.user_name);
login_obj.set_password(this.password);
login_obj.set_session_timeout(this.timeout);
login result = login.add(this, login_obj);
sessionid = result.get_sessionid();
return result;
}