server.addListener(listener);
HttpContext context = new HttpContext();
context.setContextPath("/");
context.setAttribute(AzkabanServletContextListener.AZKABAN_SERVLET_CONTEXT_KEY, app);
server.addContext(context);
String staticDir = options.has(staticContentOpt) ? options.valueOf(staticContentOpt)
: DEFAULT_STATIC_DIR;
ServletHandler servlets = new ServletHandler();