Need Help java.net.UnknownHostException

Hi!!!!

I have to consume a web service that goes for https and before the web service will be consume has to past for a proxy and that proxy re-direction the request to the webservices....

so I use my url proxy https:proxyadresses/mask/ for generate the client and works fine but when i try to consume a specific webservice soapui throws me a    java.net.UnknownHostException: webbalanceador