JSP2.0 specification is too chaos, more than 400 pages, no information is everywhere, no one is clear
:(, it is really a headache
For example: a Variable Synchronize n place has said that there is a variety of situations in Variable Synchronize itself.
I feel that the latter is more clear than the ejb specification, and the model is clear.
However, you have to admire foreigners, how to write this thing, although these things are complicated, and light Library, Tools can be an industry.