Best server-side framework for heavy AJAX Java application

Question

There are zillions of Java web application frameworks.

95% were designed before the modern era of AJAX/DHTML-based development, and that means these new methods are

Answer 1

GWT is one of the best AJAX framework that I used ever. Most important thing about this framework is that its maintained by Google. And Everyone know "Who is Google ?"

GWT is used by many products at Google, including Google AdWords and Google
Wallet. It's open source, completely free, and used by thousands of 
enthusiastic developers around the world.

GWT provide rich widgets that can be used to built any application. Almost all the widgets they have.

Another important point is GWT is continuously developing and its also have stable release which is very good thing. Another thing Google has also released GWT-Material which is again a very good thing because everyone is moving toward material.

I hope this will help you!!!