JpaContainer idclass support?

Vaadin 6 / 7 / 8 Framework Data Binding
1

Does the current JPAContainer release support @Idlcass composite primary keys? I am trying to create a JPAContainer for an entity with a composite key the Class looks similar to this

@Entity
@org.hibernate.annotations.Proxy(lazy=false)
@Table(name=“Land”)
@IdClass(LandPK.class)
public class Land implements Serializable {

@Column(name=“iso2”, nullable=false, length=2)
@Id
private String iso2;

@Column(name=“iso3”, nullable=false, length=3)
@Id
private String iso3;
…
}

The primary key Class:

@Embeddable
public class LandPK implements Serializable {
@Column(name=“iso2”, nullable=false, length=2)
private String iso2;

@Column(name=“iso3”, nullable=false, length=3)
private String iso3;
}

And then trying to create a JPAContainer for a table

JndiAddressesImpl jndiAddressesImpl = new JndiAddressesImpl(Constants.USERTRANSACTION_JNDI,Constants.ENTITYMANAGER_JNDI);
JPAContainer lands = JPAContainerFactory.makeJndi(Land.class, jndiAddressesImpl);
Table table = new Table(“Test table”, lands);

But I get the following error:

org.hibernate.TypeMismatchException: Provided id of the wrong type for class … Land Expected: … LandPK, got class java.lang.String

I don’t know how to map the properties to the primary key class. Or is it even possible?

Any help appreciated.