[ ] All of your commits have been signed-off with the correct email address (The same one that you used to sign the CLA)
[x] If This PR fixes an issue, that you reference the issue below. OR if this is a new issue that you are fixing straight away that you add some Description about the bug and how this will fix it.
[ ] If this is new functionality, You have added the appropriate Unit tests.
Possible error: subscribe have no call back when the message arrived when i use this method "public IMqttToken subscribe(String[] topicFilters, int[] qos, IMqttMessageListener[] messageListeners)" can be fixed like this.