This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
"java.net.connectionexception connection refuse" indicates that either there is no service listening to the port you have specified or that the port is blocked. You are passing the port number correctly, there's nothing for it to connect to.