WebAppConfig webAppConfig = enunciate.getConfig().getWebAppConfig();
if (webAppConfig == null) {
webAppConfig = new WebAppConfig();
enunciate.getConfig().setWebAppConfig(webAppConfig);
}
webAppConfig.addWebXmlAttribute("version", "3.0");
webAppConfig.addWebXmlAttribute("xmlns", "http://java.sun.com/xml/ns/javaee");
webAppConfig.addWebXmlAttribute("xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance");
webAppConfig.addWebXmlAttribute("xsi:schemaLocation", "http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd");
}