image class should not be required or at least use some reasonable defaults in
commandline extractor.
Wither set a default-class or try to ignore the class if no class is set.
Original issue reported on code.google.com by franz.graf on 27 Sep 2012 at 9:00
Original issue reported on code.google.com by
franz.graf
on 27 Sep 2012 at 9:00