Welcome to RXTX implementation of comm api!
it will copy following files:
libSerial.jnilib file into folder /Library/Java/Extensions
RXTXcomm.jar files into folder 
/Library/Java/Extensions

For all information about RXTX goto http://www.rxtx.org

Maintainer:  Trent Jarvi  taj@parcelfarce.linux.theplanet.co.uk