return this.username;
    }


    /**
     * Returns the password in plain text or <tt>null</tt> if the raw password
     * hashes were used to construct this <tt>NtlmPasswordAuthentication</tt>
     * object which will be the case when NTLM HTTP Authentication is
     * used. There is no way to retrieve a users password in plain text unless
     * it is supplied by the user at runtime.
     * 
     * @return the password