Were you able to work through this problem and find a solution?
I was able to fix this problem by re-reading the tutorial and correcting the XDoclet tags in my ComputeServlet.java class.
See the JBoss Eclipse IDE Tutorial, Procedure 6.1. HTTP Servlet Configuration regarding the XDoclet tags for this servlet.
This also addressed the issue I had with the
"javax.naming.NameNotFoundException: Fibo not bound" error.