Gruppo di acquisto solidale. This project was supposed to be a web service for helping costumers of an Ethical purchasing groups.
We wrote it for an university course assignment. It lacks in many aspects: worst of all it is made on Spring Roo, which was supposed to speedup the developing but made our work hell.
Anyway, it can be a (bad) example of how a Spring MVC and Roo projects are made and furthermore it has also a nice implementation of push notification through WebSockets using Atmosphere framework.