Spring Boot JPA - OneToMany relationship causes infinite loop

Question

I have a two objects with simple @OneToMany relationship which looks as follows:

parent:

@Entity
public class ParentAccount {

  @Id
  @GeneratedValu         


        

Answer 1

As user1819111 told, @Data from Lombok is not compatible with @Entity and FetchType=LAZY. I had used Lombok.Data (@Data) and I was getting this error.

As I don't want do create all get/set, I just put the Lombok @Setter and @Getter in your class and all will work fine.

@Setter
@Getter
@Entity
@Table(name = "file")
@SequenceGenerator(name = "File_Sequence", allocationSize=1, sequenceName = "file_id_seq")
public class MyClass{
    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "File_Sequence")
    @Column(name = "id")
    private Long id;

    @Column(name = "name")
    private String name;

    @OneToMany(mappedBy = "file", cascade = CascadeType.DETACH, fetch = FetchType.LAZY)
    private Set details = new HashSet<>();
}