super(domain, username, password);
        this.canFallback = true;
        this.subject = subject;
    }


    /**
     * Testing only: force fallback to NTLM
     * 
     * @param forceFallback
     *            the forceFallback to set
     */
    public void setForceFallback ( boolean forceFallback ) {
        this.forceFallback = forceFallback;