assertEquals("{labels.port}", FessLabels.LABELS_PORT);
        assertEquals("{labels.regex}", FessLabels.LABELS_REGEX);

        // Test login/logout related labels
        assertEquals("{labels.login}", FessLabels.LABELS_LOGIN);
        assertEquals("{labels.login.title}", FessLabels.LABELS_LOGIN_TITLE);
        assertEquals("{labels.login.placeholder_username}", FessLabels.LABELS_LOGIN_placeholder_username);

    /** The key of the message: Username */
    public static final String LABELS_user_name = "{labels.user_name}";

    /** The key of the message: Login */
    public static final String LABELS_LOGIN = "{labels.login}";

    /** The key of the message: Username */
    public static final String LABELS_LOGIN_placeholder_username = "{labels.login.placeholder_username}";