Eclipse error on mapping with @EmbeddedId

Question

I have an entity with composite key so I use the @Embeddable and @EmbeddedId annotations. Embeddable class looks like this :

@Embeddable
public class DitaAdm         


        

Answer 1

Preferences -> Java Persistence -> JPA -> Errors/Warnings -> Attribute -> Embedded ID classes should not contain relationship mappings: (Ignore)