not working for openhabian 
have changed the line to
EXTRA_JAVA_OPTS=“-Dgnu.io.rxtx.SerialPorts=/dev/ttyUSB0:/dev/ttyS0:/dev/ttyS2:/dev/ttyACM0:/dev/ttyAMA0 -Dfile.encoding=UTF8”
same with UTF-8
still the same after reboot
strange is that the main page is displayed correct ! but sub pages are wrong