I am considering solutions for drawing diagrams using Google Web Toolkit (GWT). Up until now I have found only the gwt-diagrams project but it seems abandoned.
Are there any suggestions about diagramming with GWT?
I'm also looking into this, for drawing family trees. I'm currently prototyping with gwt-graphics, which looks to be actively developed and is nearing version 1.0.
There is also the Raphael javascript library, and a couple of thorough blog posts about wrapping GWT around them here and here. The guys in the first article actually released their code for as raphaelgwt.
I can't comment on any of the raphael stuff yet since I haven't used it, I just found this in my own research for drawing components.