Are you trying to transport a query result set from GAE to GWT?
Sorry but JDO/JPA persistent objects are not serializable (just like
EntityBeans).
You will need to do something to make the objects portable.
I suggest checking out Objectify or creating your own Data Transfer Objects.
http://code.google.com/p/objectify-appengine/


On Thu, Dec 23, 2010 at 4:44 AM, Cesar Ruiz <[email protected]> wrote:

> Yest, its fixed!.
>
> But another real important question appeared. When trying to retrieve the
> list of objects "Book", an exception is thrown, sayin:
>
> GRAVE: javax.servlet.ServletContext log: Exception while dispatching
> incoming RPC call
> com.google.gwt.user.client.
> rpc.SerializationException: Type
> 'org.datanucleus.store.appengine.query.StreamingQueryResult' was not
> included in the set of types which can be serialized by this
> SerializationPolicy or its Class object could not be loaded.
>
> Apparently, its a big problem Google hasnt fixed yet?. What can I do?.
>
> Thank you.
>
>
> On 22 December 2010 21:39, Ikai Lan (Google) 
> <[email protected]<ikai.l%[email protected]>
> > wrote:
>
>> Have you asked your question here?
>>
>> http://groups.google.com/group/Google-Web-Toolkit
>>
>> --
>> Ikai Lan
>> Developer Programs Engineer, Google App Engine
>> Blogger: http://googleappengine.blogspot.com
>> Reddit: http://www.reddit.com/r/appengine
>> Twitter: http://twitter.com/app_engine
>>
>>
>>
>> On Wed, Dec 15, 2010 at 10:06 AM, kidowell <[email protected]> wrote:
>>
>>> Hey.
>>>
>>> Im starting with GAE, and im making an RCP program (a book address), on
>>> the server side I've got all the methods for manipulating the datastore (I'm
>>> using JPA), and on the client side I'm using GWT as a framework.
>>>
>>> When debugging it turns out, that I can only see the server side, and
>>> program never stops in any breakpoint on the client side.
>>>
>>> Is there any way that I can debug on both side sas the program runs.
>>> Because, just debugging on the server side is not very helpful.
>>>
>>> Thank you in advanced for your recomendation.
>>>
>>> Kido.
>>>
>>> --
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>>>
>>
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>
>
>
> --
> Cesar Ruiz.
>
>  --
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>



-- 
-- A. Stevko
===========
"If everything seems under control, you're just not going fast enough." M.
Andretti

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