I try running Openhab2 and Homegear and investigating a port conflict.
$ sudo netstat -nlp | grep 5353
udp 0 0 0.0.0.0:5353 0.0.0.0:* 391/avahi-daemon: r
udp6 0 0 :::5353 :::* 723/java
udp6 0 0 :::5353 :::* 391/avahi-daemon: r
Is it possible that homegear needs this avahi-daemon?
the java task is openhab2