Testing SoapUI against WebGoat 7.1

Maybe this is not an issue, but, trying to import WSDL files using the URL fails because required authentication in WebGoat. In previous WebGoat version, basic authentication was used and SoapUI ask for credentials, but, current stable version uses j_spring_security_login via login.mvc. The easy solution is to save the WSDL and import the file, set the cookie JSESSIONID and so on. How can I set globally credentials to use before SoapUI tries to import the WSDL by URL ?