Google App Engine JDO error could be caused by Serializable object ?

Posted by Frank on Stack Overflow See other posts from Stack Overflow or by Frank
Published on 2010-04-26T03:09:07Z Indexed on 2010/04/26 3:13 UTC
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Filed under:

google-app-engine

|

jdo

|

error

I got the following error mesage :

java.lang.UnsupportedOperationException org.datanucleus.store.appengine.EntityUtils.getPropertyName(EntityUtils.java:62) org.datanucleus.store.appengine.DatastoreFieldManager.storeObjectField(DatastoreFieldManager.java:839) org.datanucleus.state.AbstractStateManager.providedObjectField(AbstractStateManager.java:1037) PayPal_Monitor.Contact_Info_Entry.jdoProvideField(Contact_Info_Entry.java) PayPal_Monitor.Contact_Info_Entry.jdoProvideFields(Contact_Info_Entry.java) org.datanucleus.state.JDOStateManagerImpl.provideFields(JDOStateManagerImpl.java:2715)

Could it be caused by my Contact_Info_Entry.java ?

It looks like this :

@PersistenceCapable(identityType=IdentityType.APPLICATION)
public class Contact_Info_Entry implements Serializable
{
  @PrimaryKey
  @Persistent(valueStrategy=IdGeneratorStrategy.IDENTITY)
  Long Id;
  public static final long serialVersionUID=26362862L;
  @Persistent
  String Contact_Id="";
...
}

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