I using play 2.04 Java. I've create an additional package named util and a class named Node.java as can be seen below:-

I have a view in the views.html.* package called test.scala.html that takes Node as a parameter as in the following:-
@(rootNode: Node[Category]
@rootNode
When the view is rendered I get the error:-

Anatomy of a play 2.0 application states that it's not a problem adding additional packages and classes.
Is there something in the configuration of play that I'm missing?