@Override
 public boolean validate(Collection<Messaging> messagingList) {
   return MessagingUtil.validate(messagingList);
 }
 @Override
 public boolean validate(Messaging messaging) {
   return MessagingUtil.validate(messaging);
 }
 @Override
 public String toString(Messaging messaging) {
   return MessagingUtil.toString(messaging);
 }
 @Override
 public String toString(Collection<Messaging> messagingList) {
   return MessagingUtil.toString(messagingList);
 }
 @Override
 public boolean isEmpty(Messaging messaging) {
   return MessagingUtil.isEmpty(messaging);
 }