public JID getOccupantJID() {
        return occupantJID;
    }
Returns the 'room@service/nick' by which the occupant is identified within the context of the room; contrast with
{@link #getUserAddress()}.

@return The Jabber ID that represents this occupant in the room.
xmppserver/src/main/java/org/jivesoftware/openfire/muc/MUCOccupant.java