Hi,
I am currently “migrating” from Vera to openhab2, after a number of years of Vera frustration… 
I installed the official openhab2 distro via apt-get on Ubuntu Server 16.04.
Since I have several peripherals connected to the computer via USB, I have set upp udev rules(symlinks to the actual device) for all of them. It worked great until I got to the Aeon Labs Z-stick and the openhab Z-wave serial controller binding. The Z-wave serial controller setup does not want to accept a symlink when configured, so the device name “/dev/zwave” will result in a “serial error”, whilst direct reference to for instance /dev/ttyACM1 will work.
Could this behaviour be resolved somehow? It is a bit annoying, since un-plugging and re-plugging the Aeon stick will allocate new tty:s each time.
Best Regards
/Daniel
Verify you have done all the steps needed;
Thank you so very very much for pointing me in the right direction.
The last note
“Note: On Linux; the extra Java command-line property is not required if you choose a symlink name that matches a standard Linux comm port prefix and ends with a combination of numerics + non-letters. E.g. “ttyUSB-9999”.”
Did it!
I’ve tried adding the additional JAVA ARGS already, cannot get it to work. However, that is no longer an issue. Renaming the symlink to ttyUSB50 instead of zwave - solved it.