Hello Paolo, The problem was with maven, I knocked down ~/.m2/repository/org/apache/jena/jena-larq/ and that solved the problem. I also started maven anew from scratch on another system, and ran into no troubles there. Thank you a lot for your support, Paolo! Im on the the road for the next days, but after that Ill put together a step by step of how to do it right from maven to larq, so it might help the next guy along.
Regards Peter
