Dinamica Framework
dinamica is a powerful and very easy to use framework for J2EE web development. It's newbie friendly, open source (LGPL) and free. It was built from scratch to be a high productivity framework for building business oriented web applications, whether they are large-scale or smaller ones.
dinamica stands apart from other Java MVC frameworks, because it is does incorporate innovative programming techniques that boost productivity without sacrificing good object oriented design practices. With this framework there is no trade off between simplicity and sound programming techniques.