Hibernate[Resolvido]

public class Cliente implements java.io.Serializable{
    @Id
    @GeneratedValue(strategy=GenerationType.AUTO, generator="INC_CLIENTE")
    private Integer idCliente;
    @Column
    private String nome;
    @Column
    private String site;
    @Column
    private String cpfCnpj;
    @OneToMany(mappedBy="idCliente")
    private List<Telefone> telefones;

public class Telefone implements java.io.Serializable{
    @Id
    @GeneratedValue(strategy=GenerationType.AUTO, generator="INC_TELEFONE")
    private Integer idTelefone;
    @ManyToOne()
    @JoinColumn(name="IDCLIENTE")
    private Cliente idCliente;
    @Column
    private String telefone;

protected <T extends Serializable> T readById(Integer id, Class<T> type) {
        Session session = getSession();
        Serializable toReturn = null;
        try {            
            toReturn = (Serializable) session.get(type, id);
            session.getTransaction().commit();
        } catch (Exception ex) {
            session.getTransaction().rollback();
        } finally{
            session.close();  
            return (T) toReturn;                      
        }
    }