if (container == null) {
String resource = System.getProperty("jest.web.xml", DEFAULT_WEB_XML);
System.err.println("Starting Servlet Container from " + resource);
InputStream wdesc = Thread.currentThread().getContextClassLoader().getResourceAsStream(resource);
assertNotNull(resource + " not loadable at thread context classpath", wdesc);
container = new ServletRunner(wdesc);
assertNotNull("Servlet engine could not be started", container);
baseURI = System.getProperty("jest.base.uri", DEFAULT_BASE_URI);
System.err.println("Base URI " + baseURI);