Bad Smell Code

public XrCadre findUpdate(String id) {
	ServiceResult<String> ret = new ServiceResult<String>();
	XrCadre xrCadre = xrCadreMapper.selectByPrimaryKey(id);
	if (xrCadre != null) {
		return xrCadre;
	} else {
		return null;
	}
}

public List<XrCandidateFamily> findbyId(String id){
	XrCandidateFamilyExample example = new XrCandidateFamilyExample();
	example.createCriteria().andCandidateIdEqualTo(id);
	return candidateFamilyMapper.selectByExample(example);
}