if( auth != null ) {
            return;
        }
        auth = a;
    }

    protected final String getRequestingURL() {
        return url;
    }
    protected final SmbAuthException getRequestingException() {
        return sae;
    }

/**
Used internally by jCIFS when an <tt>SmbAuthException</tt> is trapped to retrieve new user credentials.
 */

    public static NtlmPasswordAuthentication

        return auth;
    }


    protected final String getRequestingURL () {
        return this.url;
    }


    protected final SmbAuthException getRequestingException () {
        return this.sae;
    }


    /**
     * Used internally by jCIFS when an <tt>SmbAuthException</tt> is trapped to retrieve new user credentials.
     * 
     * @param url
     * @param sae