Hibernate version:
3.0.3

I try to define a composite primary key with annotation.But it seem not to support yet.

@Entity
public class MyClass{

@Id
public CompositeKey getCKey()...
}

@Embeddable
public class CompositeKey{

@EmbeddedId
public String getProp1()

@EmbeddedId
public String getProp2()
}

The Exception is:

java.lang.UnsupportedOperationException
at org.hibernate.util.EmptyIterator.next(EmptyIterator.java:18)
at org.hibernate.util.JoinedIterator.next(JoinedIterator.java:53)
at org.hibernate.cfg.AnnotationBinder.bindId(AnnotationBinder.java:1099)
at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:715)
at org.hibernate.cfg.AnnotationBinder.processElementsOfAClass(AnnotationBinder.java:587)
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:458)
at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:177)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:999)