Cool! Benjamin hints worked for me.

Thanks!

Em terça-feira, 4 de agosto de 2009 23h52min57s UTC-3, mike escreveu:
>
> I have a simple one-to-many betwen two entities.  The parent entity 
> uses List to contain the child entities.  I am able to persist these 
> entities in the datastore without problems. 
>
> However, when reading a root entity at the server, I get: 
>
> rpc.SerializationException: Type 'org.datanucleus.sco.backed.List' was 
> not included in the set of types  which can be serialized... 
>
> The entities are successfully read from the datastore, but something 
> in Datanucleus doesn't build the List correctly. 
>
> Has anyone found a workaround for this serialization problem. 
>
> Thanks 
>
> GWT 1.7 GAE 1.2.2 
>

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