Why does my java application require RXTX? As stated on the RXTX page:
RXTX is a Java library, using a native implementation (via JNI), providing serial and parallel communication for the Java Development Toolkit (JDK).Now i wanted to move to a raspberry pi. But this runs on ARM and the RXTX is only provided for x86/x64 systems.
But there is another way: ser2net
With this proxy /dev/ttyUSB0 can be mapped to a tcp port and java can access this without using RXTX.