if(participants.size() == 1) {
contactList = new ContactList(participants.get(0).getUser().getProperty(UserConstants.EMAIL, ureq.getLocale()));
} else {
contactList = new ContactList(trans.translate("participants.message.to"));
}
contactList.addAllIdentites(participants);
cmsg.addEmailTo(contactList);
ContactFormController contactCtr = new ContactFormController(ureq, wControl, false, false, false, false, cmsg);
contactCtr.addControllerListener(listener);
sendMessageVC.contextPut("title", trans.translate("participants.message"));
sendMessageVC.put("contactForm", contactCtr.getInitialComponent());