Re: Unmarshalling with Toplink + Eclipse + MySQL

Hi there,

I don't know, if I'm right here in this group - if not please tell me
the better choice. The group c.l.j.beans seams to be dead.

I'm just trying out OC4J-Standallone-10.1.3n in an environment as
described in the subject.

In principle the environment "works" - that means I have a working
Datasource (proven by writing an entity - the same one that I now try to
read back - into the DB).

But: When I try to read the entity back:

<code>
@Stateless
public class BookmarkBean implements BookmarkBeanRemote, BookmarkBeanLocal {

[...]
    @PersistenceContext EntityManager em;

    public void getOneUnitEntry() {
        Unit u = null;

        Query q = em.createQuery("UNIT u from UNIT as u");
// List<?> resultList = q.getResultList();
// for (Object e : resultList) {
// if (e instanceof Unit) {
// u = (Unit) e;
// }
// }

        //return u;
    }
[...]
</code>

I get the Exception that I pasted at the end of this message (on client
side - the server side exception is quite short and doesn't explain
anything for me).

Does anybody know what to do to get it working?

TIA, Bye, Volker

This is the exception I get (no matter what I write as Query String).

java.rmi.UnmarshalException: Error deserializing exception-value:
writing aborted; java.io.NotSerializableException:
persistence.antlr.CommonToken; nested exception is: