Ошибка «отсоединенный объект передан в персистент» при выборе данных через репозиторий, не понимаю ⇐ JAVA

[Anonymous]

У меня возникли проблемы с обновлением объекта (Formation) в отношении ManyToMany с другим объектом (Intervenant).
Мой интеграционный тест завершился неудачно из-за следующей ошибки:
org.springframework.dao.InvalidDataAccessApiUsageException: detached
entity passed to persist: fr.foo.bar.model.Intervenant

Проблема в том, что, согласно трассировке стека, исключение перехватывается в методе, который просто извлекает данные, поэтому вызов save() не выполняется. Я не понимаю, почему появляется эта ошибка.
Вот мой тест:
@BeforeEach
void setUp() {
Intervenant newIntervenant = new Intervenant();
newIntervenant.setIdnum("IDNUM_NEW");
newIntervenant.setIdentite("New Intervenant");

Formation formation = new Formation();
formation.setLibelle("Sample Formation");
formation.setCodeApogee("APOGEE123");
formation.setCodeVet("VET789");
formation.setIntervenants(Set.of(newIntervenant));

formationDto = formationMapper.toDto(formation);
}

@Test
@Transactional
void whenUpdateFormation_thenIntervenantsAreUpdated() throws Exception {

FormationDto createdFormationDto = formationService.create(formationDto);

formationRepository.flush();

IntervenantDto newIntervenantDto = new IntervenantDto(null, "New IDNUM", "New Name");
createdFormationDto.intervenants().add(newIntervenantDto);

Intervenant existingIntervenant = new Intervenant();
existingIntervenant.setIdnum("IDNUM_EXISTING");
existingIntervenant.setIdentite("Existing Intervenant");
existingIntervenant = intervenantRepository.saveAndFlush(existingIntervenant);

existingIntervenant = intervenantRepository.findById(existingIntervenant.getId()).orElseThrow();
createdFormationDto.intervenants().add(intervenantMapper.toDto(existingIntervenant));

FormationDto updatedFormationDto = formationService.update(createdFormationDto.id(), createdFormationDto); // detached entity passed to persist: fr.foo.bar.model.Intervenant

[...]
}

Исключение возникает в последней строке теста, вызывающей update()
Вот update()< /code> метод:
@Override
@Transactional
public FormationDto update(Long id, FormationDto formationDto) throws Exception {
Formation formation = formationRepository
.findById(id)
.orElseThrow(() -> new EntityNotFoundException(String.format("La formation %d n'existe pas", id)));

Set updatedIntervenants = new HashSet();
for (IntervenantDto intervenantDto : formationDto.intervenants()) {
if (intervenantDto.id() == null) {
IntervenantDto createdDto = intervenantService.create(intervenantDto);
updatedIntervenants.add(intervenantService.toEntity(createdDto));
} else {
Intervenant existing = intervenantService.getEntity(intervenantDto.id());
updatedIntervenants.add(existing);
}
}
formation.setIntervenants(updatedIntervenants);

Collection existingEtudiants = formationEtudiantService.findAllByFormation(formation); // detached entity passed to persist: fr.foo.bar.model.Intervenant

[...]
}

Исключение возникает при вызове метода formationEtudiantService.findAllByFormation(), как показано ниже:
@Override
public List findAllByFormation(Formation formation) {

return formationEtudiantRepository.findAllByFormation(formation);
}

А вот репозиторий:
public interface FormationEtudiantRepository extends JpaRepository {

List findAllByFormation(Formation formation);
}

Вот выдержка из объекта Formation:
@Entity(name = "FormationEntity")
@Table(name = "formation")
public class Formation implements Identifiable {

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "id", columnDefinition = "INT UNSIGNED not null")
private Long id;

@Column(name = "libelle", length = 100)
private String libelle;

@Column(name = "code_apogee", length = 100)
private String codeApogee;

@Column(name = "code_vet", length = 100)
private String codeVet;

@ManyToMany(cascade = {CascadeType.MERGE, CascadeType.PERSIST})
@JoinTable(name = "formation_intervenant",
joinColumns = @JoinColumn(name = "id_formation"),
inverseJoinColumns = @JoinColumn(name = "id_intervenant"))
private Set intervenants = new LinkedHashSet();

public Set getIntervenants() {
return intervenants;
}

public void setIntervenants(Set intervenants) {
this.intervenants = intervenants;
}
}

И, наконец, Промежуточная сущность:
@Entity(name = "IntervenantEntity")
@Table(name = "intervenant")
public class Intervenant implements Identifiable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "id", columnDefinition = "INT UNSIGNED not null")
private Long id;

@Column(name = "idnum", nullable = false, length = 50)
private String idnum;

@Column(name = "identite", length = 100)
private String identite;

@Override
public Long getId() {
return id;
}

@ManyToMany(mappedBy = "intervenants")
private Set formations = new LinkedHashSet();

public void setId(Long id) {
this.id = id;
}

public String getIdnum() {
return idnum;
}

public void setIdnum(String idnum) {
this.idnum = idnum;
}

public String getIdentite() {
return identite;
}

public void setIdentite(String identite) {
this.identite = identite;
}

public Set getFormations() {
return formations;
}

public void setFormations(Set formations) {
this.formations = formations;
}
}

Это действительно сводит меня с ума... Можете ли вы мне помочь?
Изменить: вот трассировка стека
org.springframework.dao.InvalidDataAccessApiUsageException: detached entity passed to persist: f r . f o o . b a r . m o d e l . I n t e r v e n a n t < b r / > < b r / > a t o r g . s p r i n g f r a m e w o r k . o r m . j p a . v e n d o r . H i b e r n a t e J p a D i a l e c t . c o n v e r t H i b e r n a t e A c c e s s E x c e p t i o n ( H i b e r n a t e J p a D i a l e c t . j a v a : 2 9 0 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . o r m . j p a . v e n d o r . H i b e r n a t e J p a D i a l e c t . t r a n s l a t e E x c e p t i o n I f P o s s i b l e ( H i b e r n a t e J p a D i a l e c t . j a v a : 2 3 3 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . o r m . j p a . A b s t r a c t E n t i t y M a n a g e r F a c t o r y B e a n . t r a n s l a t e E x c e p t i o n I f P o s s i b l e ( A b s t r a c t E n t i t y M a n a g e r F a c t o r y B e a n . j a v a : 5 5 0 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . d a o . s u p p o r t . C h a i n e d P e r s i s t e n c e E x c e p t i o n T r a n s l a t o r . t r a n s l a t e E x c e p t i o n I f P o s s i b l e ( C h a i n e d P e r s i s t e n c e E x c e p t i o n T r a n s l a t o r . j a v a : 6 1 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . d a o . s u p p o r t . D a t a A c c e s s U t i l s . t r a n s l a t e I f N e c e s s a r y ( D a t a A c c e s s U t i l s . j a v a : 2 4 2 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . d a o . s u p p o r t . P e r s i s t e n c e E x c e p t i o n T r a n s l a t i o n I n t e r c e p t o r . i n v o k e ( P e r s i s t e n c e E x c e p t i o n T r a n s l a t i o n I n t e r c e p t o r . j a v a : 1 5 2 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . a o p . f r a m e w o r k . R e f l e c t i v e M e t h o d I n v o c a t i o n . p r o c e e d ( R e f l e c t i v e M e t h o d I n v o c a t i o n . j a v a : 1 8 4 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . d a t a . j p a . r e p o s i t o r y . s u p p o r t . C r u d M e t h o d M e t a d a t a P o s t P r o c e s s o r $ C r u d M e t h o d M e t a d a t a P o p u l a t i n g M e t h o d I n t e r c e p t o r . i n v o k e ( C r u d M e t h o d M e t a d a t a P o s t P r o c e s s o r . j a v a : 1 3 4 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . a o p . f r a m e w o r k . R e f l e c t i v e M e t h o d I n v o c a t i o n . p r o c e e d ( R e f l e c t i v e M e t h o d I n v o c a t i o n . j a v a : 1 8 4 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . a o p . i n t e r c e p t o r . E x p o s e I n v o c a t i o n I n t e r c e p t o r . i n v o k e ( E x p o s e I n v o c a t i o n I n t e r c e p t o r . j a v a : 9 7 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . a o p . f r a m e w o r k . R e f l e c t i v e M e t h o d I n v o c a t i o n . p r o c e e d ( R e f l e c t i v e M e t h o d I n v o c a t i o n . j a v a : 1 8 4 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . a o p . f r a m e w o r k . J d k D y n a m i c A o p P r o x y . i n v o k e ( J d k D y n a m i c A o p P r o x y . j a v a : 2 1 8 ) < b r / > a t j d k . p r o x y 2 / j d k . p r o x y 2 . $ P r o x y 1 6 7 . f i n d A l l B y F o r m a t i o n ( U n k n o w n S o u r c e ) < b r / > a t f r . f o o . b a r . s e r v i c e s . a p p l i c a t i o n . F o r m a t i o n E t u d i a n t S e r v i c e I m p l . f i n d A l l B y F o r m a t i o n ( F o r m a t i o n E t u d i a n t S e r v i c e I m p l . j a v a : 2 6 ) < b r / > a t j a v a . b a s e / j d k . i n t e r n a l . r e f l e c t . D i r e c t M e t h o d H a n d l e A c c e s s o r . i n v o k e ( D i r e c t M e t h o d H a n d l e A c c e s s o r . j a v a : 1 0 4 ) < b r / > a t j a v a . b a s e / j a v a . l a n g . r e f l e c t . M e t h o d . i n v o k e ( M e t h o d . j a v a : 5 7 7 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . a o p . s u p p o r t . A o p U t i l s . i n v o k e J o i n p o i n t U s i n g R e f l e c t i o n ( A o p U t i l s . j a v a : 3 4 3 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . a o p . f r a m e w o r k . C g l i b A o p P r o x y $ D y n a m i c A d v i s e d I n t e r c e p t o r . i n t e r c e p t ( C g l i b A o p P r o x y . j a v a : 6 9 9 ) < b r / > a t f r . f o o . b a r . s e r v i c e s . a p p l i c a t i o n . F o r m a t i o n E t u d i a n t S e r v i c e I m p l $ $ S p r i n g C G L I B $ $ 0 . f i n d A l l B y F o r m a t i o n ( & l t ; g e n e r a t e d & g t ; ) < b r / > a t f r . f o o . b a r . s e r v i c e s . a p p l i c a t i o n . F o r m a t i o n S e r v i c e I m p l . u p d a t e ( F o r m a t i o n S e r v i c e I m p l . j a v a : 2 2 6 ) < b r / > a t j a v a . b a s e / j d k . i n t e r n a l . r e f l e c t . D i r e c t M e t h o d H a n d l e A c c e s s o r . i n v o k e ( D i r e c t M e t h o d H a n d l e A c c e s s o r . j a v a : 1 0 4 ) < b r / > a t j a v a . b a s e / j a v a . l a n g . r e f l e c t . M e t h o d . i n v o k e ( M e t h o d . j a v a : 5 7 7 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . a o p . s u p p o r t . A o p U t i l s . i n v o k e J o i n p o i n t U s i n g R e f l e c t i o n ( A o p U t i l s . j a v a : 3 4 3 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . a o p . f r a m e w o r k . R e f l e c t i v e M e t h o d I n v o c a t i o n . i n v o k e J o i n p o i n t ( R e f l e c t i v e M e t h o d I n v o c a t i o n . j a v a : 1 9 6 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . a o p . f r a m e w o r k . R e f l e c t i v e M e t h o d I n v o c a t i o n . p r o c e e d ( R e f l e c t i v e M e t h o d I n v o c a t i o n . j a v a : 1 6 3 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . a o p . f r a m e w o r k . C g l i b A o p P r o x y $ C g l i b M e t h o d I n v o c a t i o n . p r o c e e d ( C g l i b A o p P r o x y . j a v a : 7 5 2 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . t r a n s a c t i o n . i n t e r c e p t o r . T r a n s a c t i o n I n t e r c e p t o r $ 1 . p r o c e e d W i t h I n v o c a t i o n ( T r a n s a c t i o n I n t e r c e p t o r . j a v a : 1 2 3 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . t r a n s a c t i o n . i n t e r c e p t o r . T r a n s a c t i o n A s p e c t S u p p o r t . i n v o k e W i t h i n T r a n s a c t i o n ( T r a n s a c t i o n A s p e c t S u p p o r t . j a v a : 3 8 8 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . t r a n s a c t i o n . i n t e r c e p t o r . T r a n s a c t i o n I n t e r c e p t o r . i n v o k e ( T r a n s a c t i o n I n t e r c e p t o r . j a v a : 1 1 9 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . a o p . f r a m e w o r k . R e f l e c t i v e M e t h o d I n v o c a t i o n . p r o c e e d ( R e f l e c t i v e M e t h o d I n v o c a t i o n . j a v a : 1 8 4 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . a o p . f r a m e w o r k . C g l i b A o p P r o x y $ C g l i b M e t h o d I n v o c a t i o n . p r o c e e d ( C g l i b A o p P r o x y . j a v a : 7 5 2 ) < b r / > a t o r g . s p r i n g f r a m e w o r k . a o p . f r a m e w o r k . C g l i b A o p P r o x y $ D y n a m i c A d v i s e d I n t e r c e p t o r . i n t e r c e p t ( C g l i b A o p P r o x y . j a v a : 7 0 3 ) < b r / > a t f r . f o o . b a r . s e r v i c e s . a p p l i c a t i o n . F o r m a t i o n S e r v i c e I m p l $ $ S p r i n g C G L I B $ $ 0 . u p d a t e ( & l t ; g e n e r a t e d & g t ; ) < b r / > a t f r . f o o . b a r . F o r m a t i o n C o n t r o l l e r I n t e g r a t i o n T e s t s . w h e n U p d a t e F o r m a t i o n _ t h e n I n t e r v e n a n t s A r e U p d a t e d ( F o r m a t i o n C o n t r o l l e r I n t e g r a t i o n T e s t s . j a v a : 1 3 8 ) < b r / > a t j a v a . b a s e / j d k . i n t e r n a l . r e f l e c t . D i r e c t M e t h o d H a n d l e A c c e s s o r . i n v o k e ( D i r e c t M e t h o d H a n d l e A c c e s s o r . j a v a : 1 0 4 ) < b r / > a t j a v a . b a s e / j a v a . l a n g . r e f l e c t . M e t h o d . i n v o k e ( M e t h o d . j a v a : 5 7 7 ) < b r / > a t o r g . j u n i t . p l a t f o r m . c o m m o n s . u t i l . R e f l e c t i o n U t i l s . i n v o k e M e t h o d ( R e f l e c t i o n U t i l s . j a v a : 7 2 7 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . e x e c u t i o n . M e t h o d I n v o c a t i o n . p r o c e e d ( M e t h o d I n v o c a t i o n . j a v a : 6 0 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . e x e c u t i o n . I n v o c a t i o n I n t e r c e p t o r C h a i n $ V a l i d a t i n g I n v o c a t i o n . p r o c e e d ( I n v o c a t i o n I n t e r c e p t o r C h a i n . j a v a : 1 3 1 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . e x t e n s i o n . T i m e o u t E x t e n s i o n . i n t e r c e p t ( T i m e o u t E x t e n s i o n . j a v a : 1 5 6 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . e x t e n s i o n . T i m e o u t E x t e n s i o n . i n t e r c e p t T e s t a b l e M e t h o d ( T i m e o u t E x t e n s i o n . j a v a : 1 4 7 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . e x t e n s i o n . T i m e o u t E x t e n s i o n . i n t e r c e p t T e s t M e t h o d ( T i m e o u t E x t e n s i o n . j a v a : 8 6 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . e x e c u t i o n . I n t e r c e p t i n g E x e c u t a b l e I n v o k e r $ R e f l e c t i v e I n t e r c e p t o r C a l l . l a m b d a $ o f V o i d M e t h o d $ 0 ( I n t e r c e p t i n g E x e c u t a b l e I n v o k e r . j a v a : 1 0 3 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . e x e c u t i o n . I n t e r c e p t i n g E x e c u t a b l e I n v o k e r . l a m b d a $ i n v o k e $ 0 ( I n t e r c e p t i n g E x e c u t a b l e I n v o k e r . j a v a : 9 3 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . e x e c u t i o n . I n v o c a t i o n I n t e r c e p t o r C h a i n $ I n t e r c e p t e d I n v o c a t i o n . p r o c e e d ( I n v o c a t i o n I n t e r c e p t o r C h a i n . j a v a : 1 0 6 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . e x e c u t i o n . I n v o c a t i o n I n t e r c e p t o r C h a i n . p r o c e e d ( I n v o c a t i o n I n t e r c e p t o r C h a i n . j a v a : 6 4 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . e x e c u t i o n . I n v o c a t i o n I n t e r c e p t o r C h a i n . c h a i n A n d I n v o k e ( I n v o c a t i o n I n t e r c e p t o r C h a i n . j a v a : 4 5 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . e x e c u t i o n . I n v o c a t i o n I n t e r c e p t o r C h a i n . i n v o k e ( I n v o c a t i o n I n t e r c e p t o r C h a i n . j a v a : 3 7 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . e x e c u t i o n . I n t e r c e p t i n g E x e c u t a b l e I n v o k e r . i n v o k e ( I n t e r c e p t i n g E x e c u t a b l e I n v o k e r . j a v a : 9 2 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . e x e c u t i o n . I n t e r c e p t i n g E x e c u t a b l e I n v o k e r . i n v o k e ( I n t e r c e p t i n g E x e c u t a b l e I n v o k e r . j a v a : 8 6 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . d e s c r i p t o r . T e s t M e t h o d T e s t D e s c r i p t o r . l a m b d a $ i n v o k e T e s t M e t h o d $ 7 ( T e s t M e t h o d T e s t D e s c r i p t o r . j a v a : 2 1 7 ) < b r / > a t o r g . j u n i t . p l a t f o r m . e n g i n e . s u p p o r t . h i e r a r c h i c a l . T h r o w a b l e C o l l e c t o r . e x e c u t e ( T h r o w a b l e C o l l e c t o r . j a v a : 7 3 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . d e s c r i p t o r . T e s t M e t h o d T e s t D e s c r i p t o r . i n v o k e T e s t M e t h o d ( T e s t M e t h o d T e s t D e s c r i p t o r . j a v a : 2 1 3 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . d e s c r i p t o r . T e s t M e t h o d T e s t D e s c r i p t o r . e x e c u t e ( T e s t M e t h o d T e s t D e s c r i p t o r . j a v a : 1 3 8 ) < b r / > a t o r g . j u n i t . j u p i t e r . e n g i n e . d e s c r i p t o r . T e s t M e t h o d T e s t D e s c r i p t o r . e x e c u t e ( T e s t M e t h o d T e s t D e s c r i p t o r . j a v a : 6 8 ) < b r / > a t o r g . j u n i t . p l a t f o r m . e n g i n e . s u p p o r t . h i e r a r c h i c a l . N o d e T e s t T a s k . l a m b d a $ e x e c u t e R e c u r s i v e l y $ 6 ( N o d e T e s t T a s k . j a v a : 1 5 1 ) < b r / > a t o r g . j u n i t . p l a t f o r m . e n g i n e . s u p p o r t . h i e r a r c h i c a l . T h r o w a b l e C o l l e c t o r . e x e c u t e ( T h r o w a b l e C o l l e c t o r . j a v a : 7 3 ) < b r / > a t o r g . j u n i t . p l a t f o r m . e n g i n e . s u p p o r t . h i e r a r c h i c a l . N o d e T e s tTask.lambda$executeRecursively$8(NodeTestTask.java:141)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)
at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)
at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53)
at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57)
at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)
at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)
Caused by: org.hibernate.PersistentObjectException: detached entity passed to persist: fr.foo.bar.model.Intervenant
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:121)
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:118)
at org.hibernate.internal.SessionImpl.persistOnFlush(SessionImpl.java:799)
at org.hibernate.engine.spi.CascadingActions$8.cascade(CascadingActions.java:342)
at org.hibernate.engine.spi.CascadingActions$8.cascade(CascadingActions.java:332)
at org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:511)
at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:432)
at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:218)
at org.hibernate.engine.internal.Cascade.cascadeCollectionElements(Cascade.java:545)
at org.hibernate.engine.internal.Cascade.cascadeCollection(Cascade.java:475)
at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:435)
at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:218)
at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:151)
at org.hibernate.event.internal.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:155)
at org.hibernate.event.internal.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:145)
at org.hibernate.event.internal.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:79)
at org.hibernate.event.internal.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:48)
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:107)
at org.hibernate.internal.SessionImpl.autoFlushIfRequired(SessionImpl.java:1385)
at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.lambda$new$0(ConcreteSqmSelectQueryPlan.java:100)
at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.withCacheableSqmInterpretation(ConcreteSqmSelectQueryPlan.java:305)
at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.performList(ConcreteSqmSelectQueryPlan.java:246)
at org.hibernate.query.sqm.internal.QuerySqmImpl.doList(QuerySqmImpl.java:546)
at org.hibernate.query.spi.AbstractSelectionQuery.list(AbstractSelectionQuery.java:363)
at org.hibernate.query.sqm.internal.QuerySqmImpl.list(QuerySqmImpl.java:1032)
at org.hibernate.query.Query.getResultList(Query.java:94)
at org.springframework.data.jpa.repository.query.JpaQueryExecution$CollectionExecution.doExecute(JpaQueryExecution.java:127)
at org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:90)
at org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:148)
at org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:136)
at org.springframework.data.repository.core.support.RepositoryMethodInvoker.doInvoke(RepositoryMethodInvoker.java:136)
at org.springframework.data.repository.core.support.RepositoryMethodInvoker.invoke(RepositoryMethodInvoker.java:120)
at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:164)
at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:143)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)
at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:77)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137)
... 96 more

редактировать: вот код, вызываемый из intervenantService.toEntity()
@Override
public Intervenant toEntity(IntervenantDto intervenantDto) {
if ( intervenantDto == null ) {
return null;
}

Intervenant intervenant = new Intervenant();

intervenant.setId( intervenantDto.id() );
intervenant.setIdnum( intervenantDto.idnum() );
intervenant.setIdentite( intervenantDto.identite() );

return intervenant;
}


Подробнее здесь: https://stackoverflow.com/questions/792 ... repository