JPA. JoinTable and two JoinColumns

Question

I need to create table PORTATION_MODEL_SET. And I need to create two keys from table portation and one key from table phone_model

Answer 1

@ManyToMany(targetEntity = JDBCPhoneModel.class,
            cascade = CascadeType.ALL,
            fetch = FetchType.LAZY)
@JoinTable(name = "PORTATION_MODEL_SET",
           joinColumns = {@JoinColumn(table = "PORTATION",
                                      name = "fk_portation_id", 
                                      referencedColumnName = "id"),
                          @JoinColumn(table = "PORTATION",
                                      name = "fk_content_id",                               
                                      referencedColumnName = "fk_content_id", 
                                      nullable = true)},
           inverseJoinColumns = @JoinColumn(table = "PHONE_MODEL",
                                            name="fk_phone_model_id",
                                            referencedColumnName = "id"))
private List<PhoneModel> phoneModel;

You were missing the referencedColumnName from the inverseJoinColumns definition. Please see if it's works for you.