ukidlucas : "GWT (Google Web Toolkit) is probably the biggest breakthrough for developers since Spring and Hibernate. Now, I recommend GWT/Spring/Hibernate. Creating GWT JavaScript using Java is relatively easy and with few hours of practice you can become proficient in even complex tasks suchas hierarchical tree representations (client-server), all of that without writing any JavaScript!
The problem I encountered was with integration of my newly created widgets with existing Spring/Struts/Hibernate application. Because of scarce existing documentation, I decided to write a short note on the subject."

GWT J2EE Spring integration