@Nonnull
    public List<MultiUserChatService> getMultiUserChatServices() {
        final List<MultiUserChatService> services = new ArrayList<>(mucServices.values());
        services.sort(new ServiceComparator());
        return services;
    }
Retrieves all of the MultiUserChatServices managed and configured for this server, sorted by subdomain.

@return A list of MultiUserChatServices configured for this server.
xmppserver/src/main/java/org/jivesoftware/openfire/muc/MultiUserChatManager.java