How to populate dropdown box in Spring MVC

Question

I have been trying to find out how to populate a dropdown box in Spring MVC. There are a few threads out there on this subject but none of them that I have found have helped

Answer 1

Not sure what Controller method is called to show your view with documentNumberList, but you need to add that collection to the model passed to this view:

model.addAttribute("documentNumberList", documentService.retrieveAllDocumentNumbers());

Though from your exception stack trace you also missed an @Autowired on documentService field.