@Test
public void testServiceClasses_noneWithBadSpacing()
    throws IOException, SAXException, ParserConfigurationException, XPathExpressionException {

  WebXml webxml = new WebXmlBuilder().systemServiceServlet("    , \n,    ")
      .systemServiceServletMapping().build();
  List<String> serviceClasses = webxml.endpointsServiceClasses();
  Assert.assertEquals("Expecting nothing, found : " + serviceClasses, 0, serviceClasses.size());
}