I've Inheritted a large Java Web project which I've got to make some modifications to, I'm a fairly competent Java Programmer when it comes the the basics but I've never done any JSP programming or EJB programming before. I remember vauguely doing some servlet programming 5 or so years ago in university, but I'm assuming that everything has changed since then.
I'd planned on getting myself up to speed this weekend, but I don't know where to start.
What would be a good learning trail to get me from Zero to proverbial Hero? or at least to a level of competency which will let me be able to read the JSP servlet and EJB code and understand how it works well enough to modify it and deploy it?