RFXCom issue on RP3

I have installed the latest snapshot now.
Things have not changed.

==> /var/log/openhab2/events.log <==
2016-12-16 15:51:49.795 [ThingUpdatedEvent         ] - Thing 'rfxcom:bridge:2ae6        286c' has been updated.
2016-12-16 15:51:50.169 [hingStatusInfoChangedEvent] - 'rfxcom:bridge:2ae6286c'         changed from OFFLINE to ONLINE

==> /var/log/openhab2/openhab.log <==
2016-12-16 15:52:39.393 [ERROR] [rnal.discovery.RFXComBridgeDiscovery] - Error o        ccured during discovery
java.io.IOException: device not found (2)
        at jd2xx.JD2XX.listDevices(Native Method)
        at jd2xx.JD2XX.listDevicesByDescription(JD2XX.java:826)
        at org.openhab.binding.rfxcom.internal.discovery.RFXComBridgeDiscovery.d        iscoverRfxcom(RFXComBridgeDiscovery.java:90)
        at org.openhab.binding.rfxcom.internal.discovery.RFXComBridgeDiscovery.s        tartScan(RFXComBridgeDiscovery.java:67)
        at org.eclipse.smarthome.config.discovery.AbstractDiscoveryService.start        Scan(AbstractDiscoveryService.java:199)
        at org.eclipse.smarthome.config.discovery.internal.DiscoveryServiceRegis        tryImpl.startScan(DiscoveryServiceRegistryImpl.java:381)
        at org.eclipse.smarthome.config.discovery.internal.DiscoveryServiceRegis        tryImpl.startScans(DiscoveryServiceRegistryImpl.java:357)

What I don’t understand is why, with an explicit installation of the binding for “RFXCOM USB Transceiver” with a serial port, instead of the generic JD2xx version “RFXtrx433E USB 433.92MHz Transceiver”, it still tries to use JD2xx for a new thing discovery.

RFXComBridgeHandler.java explicitely has a connection method for serial port -not using jd2xx-:

private void connect() {
        logger.debug("Connecting to RFXCOM transceiver");

        try {
            if (configuration.serialPort != null) {
                if (connector == null) {
                    connector = new RFXComSerialConnector();
                }
            } else if (configuration.bridgeId != null) {
                if (connector == null) {
                    connector = new RFXComJD2XXConnector();
                }
            } else if (configuration.host != null) {
                if (connector == null) {
                    connector = new RFXComTcpConnector();
                }