I am a mid way through an EJB3 java project, also using jquery and sql server. I consider myslef reasonably proficient at all the technologies(and design patterns). I have the opportunity to chose, a possibly new technology, for my next project.
I was considering using Vaadin, however a quick look on the UK jobs web sites shows a distinct lack of vacancies, zero in fact. Vaadin looks good, interesting and productivity increasing, however I don't want to shoot myself in the (career) foot.
Any ideas gratefully received.
(I'm UK based btw)
EDIT
Also, do these toolkits remove the need to develop Javascript/HTML completely ? I have recently been using jQuery substantially, I would be somewhat afraid to lose the power offered by javascript/jQuery for front end gui development and validation.