if (vendor == null) {
if (vendor != null) {
	public DeviceTreeItem( Vendor vendor, Device device ) {		this.children = new ArrayList();		this.vendor = vendor;		this.device = device;		if (device != null) {			if (vendor == null) {				this.name = device.getName();			} else {				this.name = device.getIdentifier();			}		} else if (vendor != null ) {			this.name = vendor.getIdentifier();		} else {			this.name = "Virtual";		}	}