Using Packages in Class Diagrams

I've imported some classes into a diagram and modeled some new classes as
well.  In both cases there are nested packages -- where packages like
java.util are represented in the model as java/util.

I've run into a problem where adding these packages into class diagrams
causes only the last package name to appear in the diagram.  So instead of
seeing a package whose title reads "java.util" only appears as "util".

Is there a preference or a property that I can use that will give me the
fully qualified package name?

Regards,

Mark Fortner