[rules-users] [#JBRULES-1946] Deserializing a KnowledgeBase object throws a java.io.EOFException

[Przemysław Różycki]

Hello Rick,

I confirm, that implementations - DroolsObjectOutputStream and 
DroolsObjectInputStream work well, but it's not applicable in my case, 
because I depend on external component, that is responsible for storing 
my data and it uses standard serialization mechanisms. Of course, I may 
do some workarounds that for example first serialize the stream using 
Drools implementation and then pass it to the external component, but I 
prefer to try to do it as it should be. If I don't manage to, I will 
think about some other ways.

Anyway, thank you for your response and advice.

Best regards,
Przemysław Różycki

Rick Lacy pisze:
> I haven't actually tested this with your example yet, but I recall 
> having a similar problem.  I notice you are using the raw 
> java.io.ObjectInputStream and java.io.ObjectOutputStream.  I think what 
> I did was switch to org.drools.common.DroolsObjectInputStream and 
> org.drools.common.DroolsObjectOutputStream.  Have you tried it with 
> these yet?
>  
>  
> Regards,
>  
>  
> Rick
> 
>  
> On 6/15/09, *Przemysław Różycki* <P.Rozycki at amg.net.pl 
> <mailto:P.Rozycki at amg.net.pl>> wrote:
> 
>     Hello,
> 
>     IMHO, this bug still occurs in 5.0.1 final version as well as in
>     trunk. I put the proper comment and example code in JIRA:
>     https://jira.jboss.org/jira/browse/JBRULES-1946
> 
>     I need it working quite quickly, so if the Drools developers plan to
>     solve it later, then I will try to look at the source code by myself
>     and find the solution (and share of course).
> 
>     However I would like to ask if anyone tried to diagnose the problem
>     earlier and has some thoughts where to look for the cause?
> 
>     Best regards,
>     -- 
>     Przemysław Różycki
>     Architekt IT
>     AMG.net, A Bull Group Company
>     ul. Łąkowa 29
>     90-554 Łódź
>     tel.: (+48 42) 296 11 82
>     GSM: (+48) 510 022 612
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>     www.amg.net.pl <http://www.amg.net.pl/>
> 
> 
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-- 
Przemysław Różycki
IT Architect
AMG.net, A Bull Group Company
ul. Łąkowa 29
90-554 Łódź
www.amg.net.pl