"Mapping RelationShip State" in chapter 8

[Dupon David]

Hello,
in chapter 8 and exactly in the part "Mapping RelationShip State", you use @idClass. Whereas in my code I use @Embeddable and @EmbeddedId I thus seek a solution with my problem of joint for the following code:

  @Embeddable
public class TermProjPK implements Serializable {
private String auiw;
@Column(name = "AUIS", nullable = false)
private String auis;  

   public class TermProj implements Serializable {
@EmbeddedId
    private TermProjPK termProjPK;
//jointure avec la table TermSource
    @ManyToOne
    @JoinColumn (name = "AUIW")
    private TermSource  auiw;  
    public TermSource getAuiw() {
        return auiw;
    }
 
    public void setAuiw(TermSource auiw) {
        this.auiw = auiw;
    }    
    
    
    //jointure avec la table SnomedInter   
    @ManyToOne 
    @JoinColumn (name = "AUIS")
    private SnomedInter auis;
    public SnomedInter getAuis() {
        return auis;
    }
 
    public void setAuis(SnomedInter auis) {
        this.auis = auis;
    }
@Column(name = "MODIF")
    private String modif;
 
    @Column(name = "SRC", nullable = false)
    private String src; 

    public class TermSource implements Serializable {
 @Id
    @Column(name = "AUIW", nullable = false)
    private String auiw;
@OneToMany(mappedBy="AUIW")
    private Collection<TermProj> termProjs;
    
     public Collection<TermProj> getTermProjs() {
        return termProjs;
    }
 
    public void setTermProjs(Collection<TermProj> termProjs) {
        this.termProjs = termProjs;
    }

   public class SnomedInter implements Serializable {
@Id
    @Column(name = "AUIS", nullable = false)
    private String auis;
@OneToMany(mappedBy="AUIS")
    private Collection<TermProj> termProjs;
    
    public Collection<TermProj> getTermProjs() {
        return termProjs;
    }
 
    public void setTermProjs(Collection<TermProj> termProjs) {
        this.termProjs = termProjs;
    } 

I have the error message according to

  org.hibernate.AnnotationException: mappedBy reference an unknown property: ejb.entity.TermProj.AUIS in ejb.entity.SnomedInter.AUIS
  

,
thank you in advance