I'm using maven to build a project.
I got some library imports in my class. Especially `edu.stanford.nlp.time.*;`

I use `mvn compile` and everthing is okay.
When I try to execute the program via `mvn exec:java` ... it starts but fails at some point because of 

```
java.lang.NoClassDefFoundError: Could not initialize class edu.stanford.nlp.time.XMLUtils

```

This only happened today. A few days ago everything was fine.
I cannot recreate what I did wrong.

Does anyone of you have an idea?

sincerly