[xwiki-users] Component registration process

Hello, I am trying to replicate the first example in the tutorial[ http://rendering.xwiki.org/xwiki/bin/view/Main/GettingStarted] using Maven. It worked great at first, but when I try to build a shaded JAR using the maven-shade-plugin, I keep getting a nasty exception: org.xwiki.component.manager.ComponentLookupException: Can't find descriptor for the component [role = [org.xwiki.rendering.converter.Converter] hint = [default]] It seems that some descriptor should have registered itself, but it does not always do that, depending on the project setup. My question: is there a way to poke whichever class has to register itself? If not, can you point me to a place where I can learn more about the registration process? All the best, Wouter