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:
    java.io.WriteAbortedException: writing aborted;
java.io.NotSerializableException: persistence.antlr.CommonToken
    at
com.evermind.server.rmi.RMIClientConnection.handleMethodInvocationResponse(RMIClientConnection.java:920)
    at
com.evermind.server.rmi.RMIClientConnection.handleOrmiCommandResponse(RMIClientConnection.java:341)
    at
com.evermind.server.rmi.RMIClientConnection.dispatchResponse(RMIClientConnection.java:296)
    at
com.evermind.server.rmi.RMIClientConnection.processReceivedCommand(RMIClientConnection.java:278)
    at
com.evermind.server.rmi.RMIConnection.handleCommand(RMIConnection.java:152)
    at
com.evermind.server.rmi.RMIConnection.listenForOrmiCommands(RMIConnection.java:127)
    at com.evermind.server.rmi.RMIConnection.run(RMIConnection.java:107)
    at
EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:825)
    at java.lang.Thread.run(Thread.java:595)
Caused by: java.io.WriteAbortedException: writing aborted;
java.io.NotSerializableException: persistence.antlr.CommonToken
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1309)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1910)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1834)
    at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1910)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1834)
    at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1910)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1834)
    at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1910)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1834)
    at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1910)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1834)
    at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
    at
com.evermind.server.rmi.RMIClientConnection.handleMethodInvocationResponse(RMIClientConnection.java:910)
    ... 8 more
Caused by: java.io.NotSerializableException: persistence.antlr.CommonToken
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1081)
    at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1347)
    at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
    at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
    at
java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:391)
    at java.lang.Throwable.writeObject(Throwable.java:649)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:585)
    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1339)
    at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
    at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
    at
java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:391)
    at java.lang.Throwable.writeObject(Throwable.java:649)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:585)
    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1339)
    at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
    at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1347)
    at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
    at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
    at
java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:391)
    at java.lang.Throwable.writeObject(Throwable.java:649)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:585)
    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1339)
    at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302)
    at
com.evermind.server.rmi.RMIOutputStream.writeException(RMIOutputStream.java:31)
    at
com.evermind.server.rmi.ServerRmiMessageHandler.writeExceptionResponse(ServerRmiMessageHandler.java:671)
    at
com.evermind.server.rmi.ServerRmiMessageHandler.returnException(ServerRmiMessageHandler.java:625)
    at com.evermind.server.rmi.RmiMethodCall.run(RmiMethodCall.java:58)
    at
com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
    ... 1 more
Exception in thread "main"
com.evermind.reflect.UndeclaredExceptionTypeException:
oracle.oc4j.rmi.OracleRemoteException
    at __Proxy1.getOneUnitEntry(Unknown Source)
    at de.flinux.empolis.bookmark.BookmarkClient.main(BookmarkClient.java:21)
oracle.oc4j.rmi.OracleRemoteException: Invocation error:
java.rmi.UnmarshalException: Error deserializing exception-value:
writing aborted; java.io.NotSerializableException:
persistence.antlr.CommonToken; nested exception is:
    java.io.WriteAbortedException: writing aborted;
java.io.NotSerializableException: persistence.antlr.CommonToken
    at com.evermind.server.rmi.RMICall.throwRecordedException(RMICall.java:143)
    at
com.evermind.server.rmi.RMIClientConnection.obtainRemoteMethodResponse(RMIClientConnection.java:571)
    at
com.evermind.server.rmi.RMIClientConnection.invokeMethod(RMIClientConnection.java:515)
    at
com.evermind.server.rmi.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:63)
    at
com.evermind.server.rmi.RecoverableRemoteInvocationHandler.invoke(RecoverableRemoteInvocationHandler.java:28)
    at
com.evermind.server.ejb.StatelessSessionRemoteInvocationHandler.invoke(StatelessSessionRemoteInvocationHandler.java:43)
    at __Proxy1.getOneUnitEntry(Unknown Source)
    at de.flinux.empolis.bookmark.BookmarkClient.main(BookmarkClient.java:21)

    Nested exception is:
java.rmi.UnmarshalException: Error deserializing exception-value:
writing aborted; java.io.NotSerializableException:
persistence.antlr.CommonToken; nested exception is:
    java.io.WriteAbortedException: writing aborted;
java.io.NotSerializableException: persistence.antlr.CommonToken
    at
com.evermind.server.rmi.RMIClientConnection.handleMethodInvocationResponse(RMIClientConnection.java:920)
    at
com.evermind.server.rmi.RMIClientConnection.handleOrmiCommandResponse(RMIClientConnection.java:341)
    at
com.evermind.server.rmi.RMIClientConnection.dispatchResponse(RMIClientConnection.java:296)
    at
com.evermind.server.rmi.RMIClientConnection.processReceivedCommand(RMIClientConnection.java:278)
    at
com.evermind.server.rmi.RMIConnection.handleCommand(RMIConnection.java:152)
    at
com.evermind.server.rmi.RMIConnection.listenForOrmiCommands(RMIConnection.java:127)
    at com.evermind.server.rmi.RMIConnection.run(RMIConnection.java:107)
    at
EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:825)
    at java.lang.Thread.run(Thread.java:595)
    at
com.evermind.server.rmi.RMICall.warningExceptionOriginatesFromTheRemoteServer(RMICall.java:109)
    at com.evermind.server.rmi.RMICall.throwRecordedException(RMICall.java:129)
    at
com.evermind.server.rmi.RMIClientConnection.obtainRemoteMethodResponse(RMIClientConnection.java:571)
    at
com.evermind.server.rmi.RMIClientConnection.invokeMethod(RMIClientConnection.java:515)
    at
com.evermind.server.rmi.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:63)
    at
com.evermind.server.rmi.RecoverableRemoteInvocationHandler.invoke(RecoverableRemoteInvocationHandler.java:28)
    at
com.evermind.server.ejb.StatelessSessionRemoteInvocationHandler.invoke(StatelessSessionRemoteInvocationHandler.java:43)
    at __Proxy1.getOneUnitEntry(Unknown Source)
    at de.flinux.empolis.bookmark.BookmarkClient.main(BookmarkClient.java:21)
Caused by: java.io.WriteAbortedException: writing aborted;
java.io.NotSerializableException: persistence.antlr.CommonToken
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1309)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1910)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1834)
    at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1910)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1834)
    at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1910)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1834)
    at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1910)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1834)
    at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1910)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1834)
    at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
    at
com.evermind.server.rmi.RMIClientConnection.handleMethodInvocationResponse(RMIClientConnection.java:910)
    at
com.evermind.server.rmi.RMIClientConnection.handleOrmiCommandResponse(RMIClientConnection.java:341)
    at
com.evermind.server.rmi.RMIClientConnection.dispatchResponse(RMIClientConnection.java:296)
    at
com.evermind.server.rmi.RMIClientConnection.processReceivedCommand(RMIClientConnection.java:278)
    at
com.evermind.server.rmi.RMIConnection.handleCommand(RMIConnection.java:152)
    at
com.evermind.server.rmi.RMIConnection.listenForOrmiCommands(RMIConnection.java:127)
    at com.evermind.server.rmi.RMIConnection.run(RMIConnection.java:107)
    at
EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:825)
    at java.lang.Thread.run(Thread.java:595)
Caused by: java.io.NotSerializableException: persistence.antlr.CommonToken
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1081)
    at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1347)
    at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
    at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
    at
java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:391)
    at java.lang.Throwable.writeObject(Throwable.java:649)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:585)
    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1339)
    at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
    at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
    at
java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:391)
    at java.lang.Throwable.writeObject(Throwable.java:649)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:585)
    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1339)
    at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
    at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1347)
    at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
    at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
    at
java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:391)
    at java.lang.Throwable.writeObject(Throwable.java:649)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:585)
    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1339)
    at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302)
    at
com.evermind.server.rmi.RMIOutputStream.writeException(RMIOutputStream.java:31)
    at
com.evermind.server.rmi.ServerRmiMessageHandler.writeExceptionResponse(ServerRmiMessageHandler.java:671)
    at
com.evermind.server.rmi.ServerRmiMessageHandler.returnException(ServerRmiMessageHandler.java:625)
    at com.evermind.server.rmi.RmiMethodCall.run(RmiMethodCall.java:58)
    at
com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
    ... 1 more