Failed to subscribe a node on other XMPP server over s2s communication

Hello, I am enjoying to use openfire. Thanks for the effort of developers/community.

My question is, is it possible to subscribe a pubsub node on other XMPP server ?

I succeeded to federate two XMPP servers (both openfire). However, I cannot subscribe a pubsub node over s2s communication.

Here is test environment:

Two xmpp servers (namely and are federated.

There is a pubsub node namely nodeOnServer2 on

I tried to subscribe nodeOnServer2 via a JID and connection on, namely But no published data received.

I succeeded to publish a data nodeOnServer2 via, and also succeeded to retrieve a data by getItem() method (smack’s method).

However, I could not succeed subscribe.

I am very happy if anyone can help me. Thank you !

I solved this by modifying openfire source code by myself. Thank you !