Spring Data JPA无法确定属性的类型，该属性是同一类的对象

@Entity
public class ParentEntity {

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

    @OneToMany(mappedBy = "parent")
    private List<ChildEntity> children;

    // getters and setters
}

@Entity
public class ChildEntity {

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

    @ManyToOne
    @JoinColumn(name = "parent_id")
    private ParentEntity parent;

    // getters and setters
}

@Entity
public class EntityA {

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

    @ManyToMany
    @JoinTable(
            name = "join_table_name",
            joinColumns = @JoinColumn(name = "entity_a_id"),
            inverseJoinColumns = @JoinColumn(name = "entity_b_id")
    )
    private List<EntityB> entitiesB;

    // getters and setters
}

@Entity
public class EntityB {

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

    @ManyToMany(mappedBy = "entitiesB")
    private List<EntityA> entitiesA;

    // getters and setters
}