new window() or reuse window?

What is the best practice, if I have a window that is popped up repeatedly?

What I actually have is an extension class of Window called LaidoutWindow, where the motivation for extending is to configure the size, contents and attributes of the window.

As I understand Vaadin 6, either works. But there is not much need to create a new window. You can switch the Layout instance displayed within a single Window. Switching Layouts updates instantly in my experience, even over the Internet. You can even switch out nested Layouts.

--Basil Bourque