I just run qj-pro on one of the libraries of pocketgames (org.pocketgames.basic) and it reports a parsing error with both files inside: 'unexpected symbol, lessthansym encountered'
In the line it points to, the content is:
"public class Pair<X,Y>"
so I'm assuming that it has a problem with "<" (lessthansym), simply because it doesn't understand generic java.