for(Class<? extends EventListener> eventListener : eventListeners) {
handler.addServletListener(eventListener.getName());
}
for(String contextParamName : contextParams.keySet()) {
handler.addContextParameter(contextParamName, contextParams.get(contextParamName));
}
for(String initParamName : initParams.keySet()) {
handler.addInitParameter(initParamName, initParams.get(initParamName));
}