}
            if (values.length == 1 && !BEARER.equals(values[0])) {
                return values[0];
            }
            throw new InvalidAccessTokenException("invalid_request", "Invalid format: " + token);
        }
        final String name = ComponentUtil.getFessConfig().getApiAccessTokenRequestParameter();
        if (StringUtil.isNotBlank(name)) {
            return request.getParameter(name);
        }