return send(request, response, Collections.<RequestParam> emptySet());
    }

    <T extends CommonServerMessageBlockResponse> T send(CommonServerMessageBlockRequest request, T response, Set<RequestParam> params)
            throws CIFSException {
        // Select appropriate transport (multi-channel if available)

            throws SmbException {
        return send(request, response, Collections.<RequestParam> emptySet());
    }

    <T extends CommonServerMessageBlockResponse> T send(final CommonServerMessageBlockRequest request, T response,
            final Set<RequestParam> params) throws SmbException {
        ensureConnected(); /* must negotiate before we can test flags2, useUnicode, etc */