hello, I have practically the same problem that you: in TermProj | public class TermProj implements Serializable { | | @EmbeddedId | protected TermProjPK termProjPK; | //join with TermSource | @ManyToOne | @JoinColumn (name = "AUIW") | private TermSource auiw; | public TermSource getAuiw() { | return auiw; | } | | public void setAuiw(TermSource auiw) { | this.auiw = auiw; | } | | | //join with SnomedInter | @ManyToOne | @JoinColumn (name = "AUIS") | private SnomedInter auis; | public SnomedInter getAuis() { | return auis; | } | | public void setAuis(SnomedInter auis) { | this.auis = auis; | } | 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; | } | | how you solved this problem please View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3991238#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...