Extending components in Vaadin 7

The ability to extend components is one of the great new features of Vaadin 7. By using extensions you don't have to reinvent the wheel—you can adjust the outlook or the behavior of the existing components instead of creating new ones, thus minimizing the need for copy-paste code.

Vaadin, JS and DOM initialization order

As we all probably already know, one of the great new and interesting features of Vaadin 7 is the easy integration of any JavaScript component. No need to write wrappers between GWT and JavaScript anymore, just a simple connector and a state class and you have the freedom to use any kind of JS ...