DefaultMBeanServerInterceptor.java 文件源码

private void removeNotificationListener(ObjectName name,
                                        NotificationListener listener,
                                        NotificationFilter filter,
                                        Object handback,
                                        boolean removeAll)
        throws InstanceNotFoundException, ListenerNotFoundException {

    if (MBEANSERVER_LOGGER.isLoggable(Level.TRACE)) {
        MBEANSERVER_LOGGER.log(Level.TRACE, "ObjectName = " + name);
    }

    DynamicMBean instance = getMBean(name);
    checkMBeanPermission(instance, null, name, "removeNotificationListener");

    /* We could simplify the code by assigning broadcaster after
       assigning listenerWrapper, but that would change the error
       behavior when both the broadcaster and the listener are
       erroneous.  */

    Class<? extends NotificationBroadcaster> reqClass =
        removeAll ? NotificationBroadcaster.class : NotificationEmitter.class;
    NotificationBroadcaster broadcaster =
        getNotificationBroadcaster(name, instance, reqClass);

    NotificationListener listenerWrapper =
        getListenerWrapper(listener, name, instance, false);

    if (listenerWrapper == null)
        throw new ListenerNotFoundException("Unknown listener");

    if (removeAll)
        broadcaster.removeNotificationListener(listenerWrapper);
    else {
        NotificationEmitter emitter = (NotificationEmitter) broadcaster;
        emitter.removeNotificationListener(listenerWrapper,
                                           filter,
                                           handback);
    }
}