Server returned HTTP response code: 401 for URL:

I have a OOTB system on which i am trying to create a JAX-WS webservice, using the OOTB PTC provided example. However when i try to generate Client executable jar file i get this error

Server returned HTTP response code: 401 for URL: http://xyz.com/Windchill/servlet/xyzService?wsdl. Now with reference to PTC case number  CS157645 

https://support.ptc.com/appserver/cs/view/solution.jsp?n=CS157645&art_lang=en&posno=1&q=java.io.IOException%3A%20Server%…

I followed all the steps, but still i am getting the same error.  Has anyone ever faced this issue with JAX-WS.