@Override

    public <T extends EventListener> void addListener(T t) {

        if (!context.getState().equals(LifecycleState.STARTING_PREP)) {

            throw new IllegalStateException(

                    sm.getString("applicationContext.addListener.ise",

                            getContextPath()));

        }

        boolean match = false;

        if (t instanceof ServletContextAttributeListener ||

                t instanceof ServletRequestListener ||

                t instanceof ServletRequestAttributeListener ||

                t instanceof HttpSessionIdListener ||

                t instanceof HttpSessionAttributeListener) {

            context.addApplicationEventListener(t);

            match = true;

        }

        if (t instanceof HttpSessionListener

                || (t instanceof ServletContextListener &&

                        newServletContextListenerAllowed)) {

            // Add listener directly to the list of instances rather than to

            // the list of class names.

            context.addApplicationLifecycleListener(t);

            match = true;

        }

        if (match) return;

        if (t instanceof ServletContextListener) {

            throw new IllegalArgumentException(sm.getString(

                    "applicationContext.addListener.iae.sclNotAllowed",

                    t.getClass().getName()));

        } else {

            throw new IllegalArgumentException(sm.getString(

                    "applicationContext.addListener.iae.wrongType",

                    t.getClass().getName()));

        }

    }