}
        }

        return ntlm;
    }


    private synchronized NtlmChallenge getChallengeForDomain ( String domain ) throws UnknownHostException, ServletException {
        if ( domain == null ) {
            throw new ServletException("A domain was not specified");
        }
        long now = System.currentTimeMillis();
        int retry = 1;

        do {

                if (index == -1) index = user.indexOf('/');
                String domain = (index != -1) ? user.substring(0, index) :
                        defaultDomain;
                user = (index != -1) ? user.substring(index + 1) : user;
                ntlm = new NtlmPasswordAuthentication(domain, user, password);
                dc = UniAddress.getByName( domainController, true );
            }