I have the code below that don't to do correctly transitive persistence.

//begin entity PessoaAnotated
@Entity
@Table (name="TB_PESSOA")
public class PessoaAnotated {

@Id @GeneratedValue (strategy=GenerationType.IDENTITY)
private Long id;

@OneToMany (cascade=CascadeType.ALL,targetEntity=VeiculoAnotated.class)
private Collection<VeiculoAnotated> veiculos = new ArrayList<VeiculoAnotated>();
//end entity PessoaAnotated

//begin entity VeiculoAnotated
@Entity
@Table(name="TB_VEICULO_ANOTATED")
public class VeiculoAnotated {

@Id @GeneratedValue(strategy=GenerationType.IDENTITY)
private Long id;

@ManyToOne (optional=false)
private PessoaAnotated proprietario;
//end entity VeiculoAnotated


//begin code
PessoaAnotated pessoa = new PessoaAnotated();

pessoa.setNome("teste hibernate");
pessoa.setIdade(30);

VeiculoAnotated veiculo = new VeiculoAnotated();

pessoa.getVeiculos().add(veiculo); 1
veiculo.setProprietario(pessoa); 2

HibernateUtil.currentEntityManager().persist(pessoa);
//end code

Why I need to set both veiculo in pessoa (mark "1") and "pessoa in veiculo (mark "2")" and ? On book Java Persistence with Hibernate page 269 tells that is not necessary!

Does anyone know why this behavior occurs?