Java sdk message callback not trigger

hello guys any help with java sdk !

room.subscribeRoomMessageEvent(new SubscribeListener() {
public void onSubscribe(Boolean isSubscribed, String subId) {
if (isSubscribed) {
Log.d("chat-log", "subscribed to room successfully");
}, new MessageListener.SubscriptionListener() {
public void onMessage(String roomId, RocketChatMessage message) {
Log.d("chat-log","new message!!!!!");

subscribed to room successfully this event is triggered fine
and i can see the new messages in the console
but not reaching onMessage callback