This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
The FAQ entry Bear is talking about can be found here . Just to check whether all things are in place(that means your server) try experimenting with the CodeBarnSimpleServlet . If you see "Hello, World" then as Giovanni says, you need to follow the steps in his post to make your servlet compile and run.