title: How to use Java packages with Groovy
body: <p>I'm at school and we are doing this java stuff. We use a special library named sum.kern: <a href="http://www.mg-werl.de/sum/bjw.zip" rel="nofollow noreferrer">http://www.mg-werl.de/sum/bjw.zip</a></p>
  
  <p>I want to use Groovy instead of Java. But I can't get groovy to use this library. If I add the jar in grape and try to import sum.kern and create a sum.kern.Bildschirm it says that it is not able to find it. How to do it?</p>