Session serialization

[Reinhard Poetz <re...@apache.org>]

Ralph Goers wrote:
> Aurélien DEHAY wrote:
> 
>> Hello.
>>
>> I'm trying to serialize my sessions with the persistance manager of 
>> tomcat to not loose them between during a restart.
>>
>> I use session-context to store XML in my session and use a flowscript 
>> to handle my login logic (maybe it's not the sexyier way, but that's 
>> the way I do it).
>>
>> When I shutdown my tomcat (tested with tomcat 5.0.28, 5.0.30 and 
>> 5.5.4), I've got the following error:
>>
>> java.io.NotSerializableException: 
>> org.apache.cocoon.components.CocoonComponentManager.
>>
>> What is this object? I've tryied to invalidate my continuations 
>> objects in the flowscript without any success. Is anyone knows a 
>> solution?
>>
>> Regards.
>>
> Cocoon is not a distributable application, as defined by the Servlet 
> spec.  You will find that quite a few non-Serializable objects are 
> stored in the session.  CocoonComponentManager is pretty much what it 
> sounds like. It keeps track of all the components that have been 
> configured and are available for use.  As you can imagine, Serializing 
> this would make very little sense.  I have no idea why it is being 
> stored in the session though.

Not directly but the Flowscript scope has access to e.g. the Cocoon service 
manager and the serialization process serializes the complete object graph.

A few weeks ago I had some discussions with Torsten, Chris Oliver, Sylvain and 
Vadim I think the problem should be solvable.

I'm going to keep the list updated about my experiences and I opened an issue at 
bugzilla (http://issues.apache.org/bugzilla/show_bug.cgi?id=33324)

-- 
Reinhard

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