This week's book giveaway is in the General Computing forum. We're giving away four copies of Arduino in Action and have Martin Evans, Joshua Noble, and Jordan Hochenbaum on-line! See this thread for details.
"BUILD FAILED" isn't a message I would expect from trying to download an applet into a browser. Neither would I expect any of those messages, especially the ones mentioning paths on the local machine. So it appears what you were doing there was something in your IDE, and you have a problem with that instead.