public static void lockedAccountDenied(String username) {
        if (!listeners.isEmpty()) {
            for (LockOutEventListener listener : listeners) {
                try {
                    listener.lockedAccountDenied(username);
                } catch (Exception e) {
                    Log.warn("An exception occurred while dispatching a 'lockedAccountDenied' event!", e);
                }
            }
        }
    }
Notifies the listeners that a locked out account attempted to log in.

@param username The username of the account that tried to log in.
xmppserver/src/main/java/org/jivesoftware/openfire/lockout/LockOutEventDispatcher.java