* My understanding is that JavaClient stuff is technically still
there, but there's not very good tool support for it. NetBeans
project file support for Entity Modeler would allow the combination
of Entity Modeler plus the Swing designer tools from NetBeans,
which would probably be a good platform to start from for that
(Swing builders in Eclipse I think mostly suck still?).
Interestingly we were using NetBeans + matisse for gui building up
until some months ago, but switched over to Eclipse + WindowBuilder
Pro which works well. But IDE portability is a good thing if needed.