[rules-dev] NPE with nested patterns

[Mauricio Salatino]

That fact makes me think about that the problem is in the number of
patterns and not the pattern itself.

On Thu, Mar 15, 2012 at 9:08 AM, Mauricio Salatino <salaboy at gmail.com>wrote:

> But wait a second..
> If you comment out another and inside the rule it will also work.. that
> means that it's not the pattern inside the last AND
>
>
> On Thu, Mar 15, 2012 at 9:04 AM, Mario Fusco <mario.fusco at gmail.com>wrote:
>
>> Mauricio,
>>
>> I am seeing exactly what you wrote.
>> What I have found until now is that the harming pattern is inside the
>> last and block (the one starting at line 218 of the single big rule and
>> ending at 235), indeed if you comment away that block the test succeeds.
>>
>> I'll keep you updated on my further findings.
>>
>> Mario
>>
>> On Thu, Mar 15, 2012 at 9:53 AM, Mauricio Salatino <salaboy at gmail.com>wrote:
>>
>>> Mario, I was looking at that problem too.
>>> Notice that if you remove some of the ANDs, the rule will work without
>>> throwing the null pointer exception.
>>> Which makes me think that it could be related with the number of
>>> declarations or how the patterns are being arranged for that specific case.
>>> The null pointer is raised when a hashcode is being calculated for a
>>> declaration that doesn't have an object assigned, for some reason it's not
>>> there.
>>> One of the tests shows how we have splitted the rule in multiple rules
>>> showing that each individual group of patterns is correct.. which make me
>>> think again about the number of patterns and/or declarations can be causing
>>> the issue.
>>>
>>> Cheers
>>>
>>> Keep us posted about your findings.. we can probably learn how to solve
>>> these problems and stop bothering you :)
>>>
>>>
>>> On Thu, Mar 15, 2012 at 8:39 AM, Mario Fusco <mario.fusco at gmail.com>wrote:
>>>
>>>> I am going to give a look at it.
>>>>
>>>> On Thu, Mar 15, 2012 at 9:11 AM, Esteban Aliverti <
>>>> esteban.aliverti at gmail.com> wrote:
>>>>
>>>>> Hi Guys,
>>>>> I'm having a NPE in one of the rules I'm using and I can't find the
>>>>> cause.
>>>>> I'm attaching a test project that shows the problem.
>>>>> Basically, I have 1 rule that contains some nested 'ands' and 'ors'
>>>>> patterns. The rule is being auto-generated from some data, that is why it
>>>>> has this strange structure.
>>>>> We tried to refactor the rule by separating it in different
>>>>> rules, extract some common factors, etc. and in some cases it works.
>>>>> So I'm not sure whether the original rule is wrong or if I'm hitting a
>>>>> bug in Drools.
>>>>> Inside the test project you can find the original rule
>>>>> (SimpleHighRiskSepsis.drl) and all the other refactors we did.
>>>>>
>>>>> Best Regards,
>>>>>
>>>>> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
>>>>>
>>>>> Esteban Aliverti
>>>>> - Developer @ http://www.plugtree.com
>>>>> - Blog @ http://ilesteban.wordpress.com
>>>>>
>>>>> _______________________________________________
>>>>> rules-dev mailing list
>>>>> rules-dev at lists.jboss.org
>>>>> https://lists.jboss.org/mailman/listinfo/rules-dev
>>>>>
>>>>>
>>>>
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>>>>
>>>
>>>
>>> --
>>>  - MyJourney @ http://salaboy.wordpress.com
>>>  - Co-Founder @ http://www.jugargentina.org
>>>  - Co-Founder @ http://www.jbug.com.ar
>>>
>>>  - Salatino "Salaboy" Mauricio -
>>>
>>>
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>>>
>>
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>>
>
>
> --
>  - MyJourney @ http://salaboy.wordpress.com
>  - Co-Founder @ http://www.jugargentina.org
>  - Co-Founder @ http://www.jbug.com.ar
>
>  - Salatino "Salaboy" Mauricio -
>
>


-- 
 - MyJourney @ http://salaboy.wordpress.com
 - Co-Founder @ http://www.jugargentina.org
 - Co-Founder @ http://www.jbug.com.ar

 - Salatino "Salaboy" Mauricio -
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