This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
The trouble with this error message is that it's never the real error. To find the real error, you have to look at your app server's log file for the time period when your app server is first starting up.