throw new SAXException("include tag must have a file or an url attribute");
}
// create a new temporary parser to read the configurations from
// the specified file.
Parser parser = newParser(new UrlExternalResource(url), url);
ParserHelper.parse(url , null, parser);
// add the configurations from this temporary parser to this module descriptor
Configuration[] configs = parser.getModuleDescriptor().getConfigurations();
for (Configuration config : configs) {