@Override
 public void addMail(String username, String mail, String password) {
   // TODO Auto-generated method stub
   username = "******";
   User user = userRepository.findOne(username);
   user.addMail(mail, password);
   userRepository.saveAndFlush(user);
 }
  @Override
  public void deleteMessage(String username, String message) {
    // TODO Auto-generated method stub
    username = "******";
    User user = userRepository.findOne(username);
    System.out.println("MESSAGE");
    System.out.println(message);
    Iterator<HashMap<String, String>> iter = user.inbox.iterator();
    ArrayList<HashMap<String, String>> newInbox = new ArrayList<HashMap<String, String>>();
    ArrayList<HashMap<String, String>> newSent = new ArrayList<HashMap<String, String>>();

    while (iter.hasNext()) {
      HashMap<String, String> messageMap = iter.next();
      if (messageMap.containsKey(message)) {
        user.deleted.add(messageMap);
        iter.remove();

      } else {
        newInbox.add(messageMap);
      }
    }
    user.inbox.clear();
    user.inbox = newInbox;

    Iterator<HashMap<String, String>> iterSent = user.sent.iterator();
    while (iterSent.hasNext()) {
      HashMap<String, String> messageMap = iterSent.next();
      if (messageMap.containsKey(message)) {
        iterSent.remove();
      } else {
        newSent.add(messageMap);
      }
    }
    user.sent.clear();
    user.sent = newSent;
    userRepository.saveAndFlush(user);
  }