StackOverflowError - mappedBy

Question

I have an entity account that I would like to link with another entity account.

When testing with postman I get a StackOverflowError because the list of friends is reloaded to infinity

What can I do to solve my problem?

---

public class Account {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
   

    @ManyToMany
    @JoinTable(name = "ludo",
            joinColumns = @JoinColumn(name = "id_account"),
            inverseJoinColumns = @JoinColumn(name = "id_boardGame"))
    private List<Boardgame> boardgameList;



    @OneToMany(mappedBy = "friend")
    List<Friends> FriendsList;
    
}


@Data
@AllArgsConstructor
@NoArgsConstructor
@Entity
public class Friends {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private int id_friends;

    @JsonIgnore
    @OneToOne
    @JoinColumn(name="FK_account", referencedColumnName="account_id")
    private Account account;


    @OneToOne( fetch = FetchType.LAZY)
    @JoinColumn(name="FK_friend",nullable = false, referencedColumnName="account_id")
    private Account friend;

    @Column(updatable = false)
    @CreationTimestamp
    private LocalDateTime createdAt;

}

Answer 1

The port is already in use. To fix it, you can :

• Change the port that you are using in the server.properties file
• Stop the other server which is running on 25565 port. For example, if you are on linux and you don't know which process is using it, use fuser -k 25565/tcp, which will kill the current process and that port.