code: protected final void addDefaultServlet(WebAppContext context) {
  		Assert.notNull(context, "Context must not be null");
  		ServletHolder holder = new ServletHolder();
  		holder.setName("default");
  		holder.setClassName("org.eclipse.jetty.servlet.DefaultServlet");
  		holder.setInitParameter("dirAllowed", "false");
  		holder.setInitOrder(1);
  		context.getServletHandler().addServletWithMapping(holder, "/");
  		context.getServletHandler().getServletMapping("/").setDefault(true);
  	}
docs: Add Jetty's {@code DefaultServlet} to the given {@link WebAppContext}.
  @param context the jetty {@link WebAppContext}