I\'m trying to bind one of my model objects to the fields of a form, using Spring-MVC. Everything works fine, except that one of the attributes of the model object is an unorder
You could try writing your own custom Editor to do the job, and then registering the editor with the controller for the form. You wouldn't have to bother with indexing the elements in the Set that way. And as previously mentioned, if there's a way of sorting the elements, you could ensure their order in the set using SortedSet.