this.openFlags &= ~(SmbFile.O_CREAT | SmbFile.O_TRUNC); /* in case close and reopen */
        writeSize = file.tree.session.transport.snd_buf_size - 70;

        useNTSmbs = file.tree.session.transport.hasCapability( ServerMessageBlock.CAP_NT_SMBS );
        if( useNTSmbs ) {
            reqx = new SmbComWriteAndX();
            rspx = new SmbComWriteAndXResponse();

            this.writeSizeFile = this.writeSize;
        }

        if ( log.isDebugEnabled() ) {
            log.debug("Negotiated file write size is " + this.writeSizeFile);
        }

        if ( this.useNTSmbs ) {
            this.reqx = new SmbComWriteAndX(th.getConfig());
            this.rspx = new SmbComWriteAndXResponse(th.getConfig());
        }