private void updateIsIDEtalkClient(String jabberId, User user) {
   if (getResource(jabberId)
       .toLowerCase()
       .startsWith(JabberFacade.IDETALK_RESOURCE.toLowerCase())) {
     myIDEtalkUsers.add(user.getName());
   } else {
     myIDEtalkUsers.remove(user.getName());
   }
 }
  private void updateJabberUsers(boolean removeUsersNotInRoster) {
    LOG.debug("Roster changed - update user model");
    Set<User> currentUsers = new HashSet<>(Arrays.asList(myUserModel.getAllUsers()));
    for (RosterEntry rosterEntry : getRoster().getEntries()) {
      User user = addJabberUserToUserModelOrUpdateInfo(rosterEntry);
      currentUsers.remove(user);
    }

    if (removeUsersNotInRoster) {
      removeUsers(currentUsers);
    }

    if (LOG.isDebugEnabled()) {
      LOG.debug("Roster synchronized: " + Arrays.asList(myUserModel.getAllUsers()));
    }
  }