This week's giveaway is in the EJB and other Java EE Technologies forum. We're giving away four copies of EJB 3 in Action and have Debu Panda, Reza Rahman, Ryan Cuprak, and Michael Remijan on-line! See this thread for details.
There is no default target in ant and you have not specified one in the <project> statement, so if you do not specify a target on the command line then ant will do nothing. And as it reported, is was successful at doing nothing.