* If any of the above fail, isExists will not be set true
             */

            this.isExists = true;

        }
        catch ( UnknownHostException uhe ) {
            log.debug("Unknown host", uhe);
        }
        catch ( SmbException se ) {
            log.trace("exists:", se);
            switch ( se.getNtStatus() ) {
            case NtStatus.NT_STATUS_NO_SUCH_FILE:

    protected void doSend0 ( Request request ) throws IOException {
        try {
            doSend(request);
        }
        catch ( IOException ioe ) {
            log.warn("send failed", ioe);
            try {
                disconnect(true);
            }
            catch ( IOException ioe2 ) {
                ioe.addSuppressed(ioe2);
                log.error("disconnect failed", ioe2);
            }

                    }
                    return response;
                }
                catch ( DfsReferral r ) {
                    if ( log.isDebugEnabled() ) {
                        log.debug("Have referral " + r);
                    }
                    throw r;
                }
                catch ( SmbException se ) {
                    if ( log.isTraceEnabled() ) {