Ben Alex : "For some time I have been interested in client-centric, web-based user interfaces. These Generation IV frameworks are characterised by their component-based, event-driven programming model, and focus on the presentation logic residing entirely on the client. Targeting a web browser in this manner typically necessitates the use of JavaScript or Flash, which in itself imposes a number of unique challenges
[...]
The purpose of this blog entry is not to critique GWT or Open Laszlo. Instead I would like to explore an open source Java to JavaScript compiler named Java2Script Pacemaker (J2S) and present an initial Spring integration
[...]
"

Java to JavaScript Compilation with AJAX and Spring Integration