This week's book giveaway is in the Agile and Other Processes forum. We're giving away four copies of The Journey To Enterprise Agility and have Daryl Kulak & Hong Li on-line! See this thread for details.
It would appear that you have errors in your source code, but those errors are not being displayed. Try not forking the java compiler (let the JVM running the Ant build script do the compiling), that should result in the errors being listed.