protected MUCRoom getChatRoom() {
        final MultiUserChatService multiUserChatService = XMPPServer.getInstance().getMultiUserChatManager().getMultiUserChatService(roomJid);
        if (multiUserChatService == null) {
            throw new NullPointerException("The MUC service for room '" + roomJid + "' does not exist! This is likely a bug in Openfire.");
        }
        return multiUserChatService.getChatRoom(roomJid.getNode());
    }
Obtain the chat room that hosts this occupant.

@return The chatroom hosting this occupant.
xmppserver/src/main/java/org/jivesoftware/openfire/muc/MUCOccupant.java