throw new IOException("Failed to establish session with " + this.address);
    }


    private SmbNegotiation negotiate ( int prt ) throws IOException {
        /*
         * We cannot use Transport.sendrecv() yet because
         * the Transport thread is not setup until doConnect()
         * returns and we want to suppress all communication
         * until we have properly negotiated.
         */

            }
            try ( DcerpcHandle handle = DcerpcHandle.getHandle("ncacn_np:" + server + "[\\PIPE\\srvsvc]", getContext()) ) {
                handle.sendrecv(rpc);
                if ( rpc.retval != 0 ) {
                    throw new SmbException(rpc.retval, true);
                }
                aces = rpc.getSecurity();
                if ( aces != null ) {