Fedora using right now (package is installed Package rxtx-2.2-0.5.20100211.fc15.i686 already installed and latest version ).
Package rxtx-2.2-0.5.20100211.fc15.i686 already installed and latest version
I have used/tried:
Project -> properties -> Java build path ->Find your .jar. Click on + to open the JAR's properties. Select Native library location and edit it to point to RXTX's shared library (.DLL, .so, .dylib).