}
    public void setDownlinkOwner(DownlinkOwner paramDownlinkOwner) {        if (this.downlinkOwner != paramDownlinkOwner) {            if (this.downlinkOwner != null) {                DownlinkOwner old = this.downlinkOwner;                this.downlinkOwner = null;                old.setDownlink(null);            }            this.downlinkOwner = paramDownlinkOwner;            if (paramDownlinkOwner != null) {                paramDownlinkOwner.setDownlink(this);            }        }    }