Yawda is an MVC Web development application framework based on Struts. With it, you can easily output HTML, SVG, PNG, JPEG, PDF, RTF, XML, JS, CSS (and any text file) with data from several sources. It uses cayenne ORM (or another tool like jaxor, hibernates, or jdbc) and rhinoJS or Java for the model, Struts for the controller, and Velocity/iText/Batik for the view component.
