I don't use Spring MVC much and especially not for web pages, since I prefer
JSF. But pretty much every web MVC framework I've ever used has been template-based and the UI Model object(s) are referenced in the template, not in the controller logic. So I'd look at the "orderForm".
The secret of how to be miserable is to constantly expect things are going to happen the way that they are "supposed" to happen.
You can have faith, which carries the understanding that you may be disappointed. Then there's being a willfully-blind idiot, which virtually guarantees it.