* @see org.eclipse.ecf.presence.chatroom.IChatRoomContainer#getChatRoomAdminSender()
*/
public IChatRoomAdminSender getChatRoomAdminSender() {
synchronized (this) {
if (chatRoomAdminSender == null) {
chatRoomAdminSender = new IChatRoomAdminSender() {
public void sendSubjectChange(String newsubject) throws ECFException {
if (multiuserchat == null)
throw new ECFException(Messages.XMPPChatRoomContainer_EXCEPTION_NOT_CONNECTED);
try {
multiuserchat.changeSubject(newsubject);