@Entity
@Table(name = "trip")
public class Trip {

    @Id
    public Long id;

    @Embedded
    @AttributeOverrides({
            @AttributeOverride(name = "date", column = @Column(name = "date_position1")),
    })
    @AssociationOverride(name = "poi", joinColumns = @JoinColumn(name = "poi1_id_fk"))
    public Location position1 = new Location();

    @Embedded
    @AttributeOverrides({
            @AttributeOverride(name = "date", column = @Column(name = "date_position2")),
    })
    @AssociationOverride(name = "poi", joinColumns = @JoinColumn(name = "poi2_id_fk"))
    public Location position2 = new Location();
}

		Trip trip = tripRepository.findById(1L).orElseThrow();
		assertThat(trip.position1).isNotNull();
		assertThat(trip.position2).isNotNull();

		Optional<Report> reportOptional = repository.findById(1L);
        assertThat(reportOptional).isPresent();

        Report report = reportOptional.get();
        assertThat(report.reportTripList.get(0).compositeKey.trip.position1).isNotNull();
        assertThat(report.reportTripList.get(0).compositeKey.trip.position2).isNotNull(); // ko