//default JSP servlet
final ServletInfo jspServlet = jspConfig != null ? jspConfig.createJSPServletInfo() : null;
if (jspServlet != null) { //this would be null if jsp support is disabled
HashMap<String, JspPropertyGroup> propertyGroups = createJspConfig(mergedMetaData);
JspServletBuilder.setupDeployment(d, propertyGroups, tldInfo, new UndertowJSPInstanceManager(new WebInjectionContainer(module.getClassLoader(), componentRegistryInjectedValue.getValue())));
if (mergedMetaData.getJspConfig() != null) {
d.setJspConfigDescriptor(new JspConfigDescriptorImpl(tldInfo.values(), propertyGroups.values()));
}