public Authenticate() {
        client = new OkHttpClient.Builder()
            .authenticator(new Authenticator() {
              @Override public Request authenticate(Route route, Response response) throws IOException {
                if (response.request().header("Authorization") != null) {
                  return null; // Give up, we've already attempted to authenticate.
                }

            return false;
        }

        @Override
        public boolean isRequestedSessionIdFromURL() {
            return false;
        }

        @Override
        public boolean authenticate(HttpServletResponse response) throws IOException, ServletException {
            return false;
        }

        @Override
        public void login(String username, String password) throws ServletException {

        assertEquals(messageCode, exception.getMessageCode());
    }

    public void test_messageWithSpecialCharacters() {
        // Setup
        final String message = "Error: Failed to authenticate user <******@****.***> with special chars: #$%&*()!@";
        final VaMessenger<FessMessages> messageCode = messages -> messages.addErrorsSsoLoginError(UserMessages.GLOBAL_PROPERTY_KEY);

            return false;
        }

        @Override
        public boolean isRequestedSessionIdFromURL() {
            return false;
        }

        @Override
        public boolean authenticate(jakarta.servlet.http.HttpServletResponse response) {
            return false;
        }

        @Override
        public void login(String username, String password) {
        }

        @Override

                .orElseThrow(() -> new FessSystemException("Cannot create an access token."));
    }

    /**
     * Generates and saves a new access token for the current session.
     * The token is used to authenticate API requests.
     */
    public void saveToken() {
        getSessionManager().setAttribute(Constants.SEARCH_ENGINE_API_ACCESS_TOKEN, UUID.randomUUID().toString().replace("-", ""));
    }

            }

            @Override
            public boolean isRequestedSessionIdFromURL() {
                return false;
            }

            @Override
            public boolean authenticate(HttpServletResponse response) throws IOException, ServletException {
                return false;
            }

            @Override

        }

        @Override
        public boolean isRequestedSessionIdFromURL() {
            throw new UnsupportedOperationException();
        }

        @Override
        public boolean authenticate(jakarta.servlet.http.HttpServletResponse response) {
            throw new UnsupportedOperationException();
        }

        @Override
        public void login(String username, String password) {

            }

            @Override
            public boolean isRequestedSessionIdFromURL() {
                return false;
            }

            @Override
            public boolean authenticate(jakarta.servlet.http.HttpServletResponse response) {
                return false;
            }

            @Override
            public void login(String username, String password) {
            }

            return false;
        }

        @Override
        public boolean isRequestedSessionIdFromURL() {
            return false;
        }

        @Override
        public boolean authenticate(jakarta.servlet.http.HttpServletResponse response) {
            return false;
        }

        @Override
        public void login(String username, String password) {
        }

        @Override

            }
        }
        final HttpServletResponse response = LaResponseUtil.getResponse();
        if (t instanceof final InvalidAccessTokenException e) {
            response.setHeader("WWW-Authenticate", "Bearer error=\"" + e.getType() + "\"");
            writeJsonResponse(HttpServletResponse.SC_UNAUTHORIZED, message);
        } else {
            writeJsonResponse(status, message);
        }
    }