@Override
public void validate(Object auth, Errors errors) {
User fUser = (User) auth;
User pUser;
try {
pUser = userService.getUserByUsername(fUser.getUsername());
} catch (UsernameNotFoundException notFoundException) {
pUser = null;
}
if (pUser != null) {
errors.rejectValue("username", "user.username.suchLoginAlreadyExists");
}
}
