JCUser user = this.getDao().getByUuid(uuid);
if (user == null) {
LOGGER.info("Could not activate user with UUID[{}] because it doesn't exist. Either it was removed from DB "
+ "because too much time passed between registration and activation, or there is an error in link"
+ ", might be possible the user searches for vulnerabilities in the forum.", uuid);
throw new NotFoundException();
} else if (!user.isEnabled()) {
Group group = groupDao.getGroupByName(AdministrationGroup.USER.getName());
user.addGroup(group);
user.setEnabled(true);
this.getDao().saveOrUpdate(user);