}

    static final NtlmPasswordAuthentication NULL =
                new NtlmPasswordAuthentication( "", "", "" );
    static final NtlmPasswordAuthentication GUEST =
                new NtlmPasswordAuthentication( "?", "GUEST", "" );
    static final NtlmPasswordAuthentication DEFAULT =
                new NtlmPasswordAuthentication( null );

    String domain;
    String username;
    String password;

        super(
            userInfo,
            tc.getConfig().getDefaultDomain(),
            tc.getConfig().getDefaultUsername() != null ? tc.getConfig().getDefaultUsername() : "GUEST",
            tc.getConfig().getDefaultPassword() != null ? tc.getConfig().getDefaultPassword() : "");
        this.context = tc;
    }


    /**
     * Create an <tt>NtlmPasswordAuthentication</tt> object from a