Which development tools exist to help developer productivity?

With regards to IDE support, there are plugins for Eclipse and Netbe.
The visual editor makes it easy to create views and composite components using a WYSIWYG interface. There is also a plugin for Spring Roo which allows the developer to easily create a rich UI for his domain model. The Vaadin Sampler makes it easy to see all different components in action. Source code snippets are included. The Chameleon Theme Builder makes it easy to create a look-and-feel for the developer’s application. The commercial support service, the Vaadin Pro Account is also a good productivity booster as it includes several features, which ensure that you get the most out of Vaadin.