Openhab2 crashes when using rfxcom usb on raspi

I am trying to setup my rfxcom usb adapter on /dev/ttyUSB0.
I add it as a thing manually using “RFXCOM USB Transceiver” and set the serial port to “/dev/ttyUSB0”.
The thing shows up in the list as offline.
Then I get the error below on the console and openhab2 crashes.
/usr/bin/java: symbol lookup error: /home/pi/java/openhab2/userdata/tmp/libNRJavaSerial_HF_pi_0/ undefined symbol: __fdelt_chk

Any idea what is wrong?

I think I found it: