NotAcceptableException { if (((MultiUserChatServiceImpl)mucService).getMUCDelegate() != null) { if (!((MultiUserChatServiceImpl)mucService).getMUCDelegate().joiningRoom(this, user.getAddress())) {
NotAcceptableException { if (((MultiUserChatServiceImpl)mucService).getMUCDelegate() != null) { if (!((MultiUserChatServiceImpl)mucService).getMUCDelegate().joiningRoom(this, user.getAddress())) {