Can anyone tell how to start using the RI of the JSR-179. Cannot find the implementation's java source code files only the compiled class files? Isn't the main point of a RI to give the programmers an idea of how to actually implement the specification (JSR-179 API)? Since the progammer has to supply the actual implementation of a LocationProvider, and the spec. dosen't specify HOW to do this, I'm i the dark. For instance, if I want to use a Bluetooth GPS to optain location data, how do I implement the LocationProvider. Is it simply to wrap the parsed NMEA sentence (from the Bluetooth connection) in Location objects that is returned by the LocationProvider?