Cannot assign requested address while trying to run a Java server through an ant script

I have to execute a compiled Java server through an ant task for an assignment so that I can build a client for it. I don't have the code of the server but it's supposed to run on the 8181 port of the localhost after being launched. It's working in windows and on other linux machines but I cannot run on this one (crunchbang). This is the error I get:I have to execute a compiled Java server throug