JavaGPS is a Java-only base library that enables access to GPS devices from within any Java application.
Provides Java API, NMEA0183 parser, record and playback GPS log files, convert between earth dates and Gauss Krueger, GPS management GUI with map..
Java access to USB, currently using kernel 2.4 Linux-USB support. There is a "core" API for accessing USB devices, and simple tools including a USB viewer in Swing. Applications are being developed separately, including digital camera support.