final int effectiveBlockSize = Math.max(blockSize, optimizedBlockSize);

            SmbComReadAndXResponse response = null;
            if (!th.isSMB2()) {
                response = new SmbComReadAndXResponse(th.getConfig(), b, off);
            }

            do {
                r = len > effectiveBlockSize ? effectiveBlockSize : len;

                if (log.isTraceEnabled()) {