That I could probably look at the source and figure things out. No, what kills me is public Session getSession(Foo, Bar, Baz) where Foo, Bar, and Baz are the

That I could probably look at the source and figure things out. No, what kills me is public Session getSession(Foo, Bar, Baz) where Foo, Bar, and Baz are themselves interfaces, and I have no idea what implementing class I need, so I go searching, and after an hour of pain piece together that I need to instantiate a NotAtAllAFooButNeverthelessImplementsFoo, then pass that into the BuildingFactory class' static factory method to get an instance of Bar, and then I can just pass in a null for Baz, and it -seems- to work.