See http://netbeans.org/bugzilla/show_bug.cgi?id=192925

User specify ARG_HOST as "http://...." and some ARG_PORT
We in NetBeans call Argument.isValid() on these two arguments and they return true.
SocketAttachingConnector.attach() concatenates these two arguments forming
String address = "http://...:<port number>"
SocketTransportService.attach() then does:
int splitIndex = address.indexOf(':');
where it finds the first ":" which is after "http"
Therefore portStr = "//...:<port number>"
Then naturally port = Integer.decode(portStr).intValue() throws NumberFormatException and the execution is broken by
throw new IllegalArgumentException("unable to parse port number in address");

Argument.isValid() should be improved.