Smack 4.4.7: Sending of muc#roomconfig form always failed with NoResponseException even the server reply within ms after IQ-set is received

This is basically the same issue as in Thread stuck in MultiUserChat.enter() forever - #15 by Flow

You are performing a blocking operation in a synchronous listener, which creates a deadlock that is resolved once the blocking operation times out.

Probably somewhere at

             at net.java.sip.communicator.impl.protocol.jabber.ChatRoomJabberImpl$ParticipantListener.processOwnPresence(ChatRoomJabberImpl.java:2771)
             at net.java.sip.communicator.impl.protocol.jabber.ChatRoomJabberImpl$ParticipantListener.processPresence(ChatRoomJabberImpl.java:2744)

which is within the listener, the room join should be decoupled from the listener’s control flow. Alternatively, use an asynchronous listener.