return at == null ? null : Provisioning.getInstance().getAccountById(at.getAccountId());
return at == null ? null : Provisioning.getInstance().get(AccountBy.ID, at.getAccountId());
    protected Account cookieAuthRequest(HttpServletRequest req, HttpServletResponse resp, boolean doNotSendHttpError)         throws IOException, ServletException, ServiceException     {        AuthToken at = getAuthTokenFromCookie(req, resp, doNotSendHttpError);        return at == null ? null : Provisioning.getInstance().getAccountById(at.getAccountId());     }