I modifiede the Device.java and Service.java to allow loading the descriptors from classpath (they're packed inside the jar file).
this is not the entire change, but explains what I did - if it's useful I can email the files / extract patch...
/** RazvanC 2008-03 allows descr files to be in jar files in the classpath, for compact runnables */
public Device(URL descriptionURL) throws InvalidDescriptionException, IOException
I would just remove the other constructors (by file/by stringfilename) since they're subsets.