you might give this a try: http://www.jboss.org/index.html?module=bb&op=viewtopic&t=57390
But it seems that "http.proxyUser" and "http.proxyPassword" are not java networking standard. It depends on the module which tries to connect to the internet whether it supports them or not.
So, what part fails?
Hope this helps
I still have the 407 Error Code :/
I've written a helperclass for authentification, now it works. Still don't know how the set authentification params for the JVM.
Thanks to all for help.