I was somewhat shocked to learn that a lot of my colleagues are not even aware of the existence of jetty. I have been using it for quite a while. It is the best thing you can do during development – and no jboss is not a good thing it is after all quite similar to websphere. Arguably jetty is also the best thing in production.
As I will die one day, I can’t be bothered to use anything else, because there are no insights to be gained and no problems to be solved by using anything more “elaborate”.