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.
Are you using the Weblogic web-server or another one? I've had the same problem and as far as we were able to track it down, it appeared to be a feature of the web server concatenating the output and not (necessarily) the browser or application server. Dave.