One more thing:
Passing a Struts ActionForm to a Business Logic or Model class is considered bad form. It breaks the MVC model by making your model class dependent on a specific view object (The struts ActionForm). What you're encountering right now is a good illustration of this: You're unable to test your Model classes without bringing the View Layer (Struts) into the picture.
It's better to develop objects that follow the "Transfer Object" or DTO
pattern to shuttle information between your model classes and Struts.
[ August 09, 2006: Message edited by: Merrill Higginson ]