throw new SmbException("Source and destination paths overlap.");
            }

            WriterThread w = new WriterThread();
            w.setDaemon(true);

            try {
                w.start();
                // use commonly acceptable buffer size
                int bsize = Math.min(sh.getReceiveBufferSize() - 70, dh.getSendBufferSize() - 70);

                throw new SmbException( "Source and destination paths overlap." );
            }
        } catch (UnknownHostException uhe) {
        }

        w = new WriterThread();
        w.setDaemon( true );
        w.start();

        /* Downgrade one transport to the lower of the negotiated buffer sizes
         * so we can just send whatever is received.
         */