FormField field = form.addField();
field.setType(FormField.Type.hidden);
field.setVariable("FORM_TYPE");
field.addValue("http://jabber.org/protocol/admin");
field = form.addField();
field.setLabel(getLabel());
field.setVariable("activeusersnum");
// Make sure that we are only counting based on bareJIDs and not fullJIDs
Collection<ClientSession> sessions = SessionManager.getInstance().getSessions();
Set<String> users = new HashSet<String>(sessions.size());