[rules-dev] NPE on fact insertion if rule has sliding window

[Wolfgang Laun]

Another pointer: The bug also depends on the Drools DRL package statement
specifying the same package name as the Java declaration of the class that
should be used as an event.

### OK ###
package hashcode
import hashcode.SimpleType
declare SimpleType
  role(@event)
end

### NOT OK ###
package xxxxxxxxxxx
import hashcode.SimpleType
declare SimpleType
  role(@event)
end

So this *could* be related to the strange effect and/or bug in connection
with declare for a Pojo required or not for use in a declare X extends Pojo.

-W


On 14 July 2011 12:21, Wolfgang Laun <wolfgang.laun at gmail.com> wrote:

> On 14 July 2011 11:35, Mark Proctor <mproctor at codehaus.org> wrote:
>
>>  On 14/07/2011 10:10, Wolfgang Laun wrote:
>>
>> On 13 July 2011 17:09, John <jfullard at progeny.net> wrote:
>>
>>> Interesting... I have no idea why the KnowledgeBuilder would compile the
>>> DRL
>>> differently than the KnowledgeAgent,
>>
>>
>> There's a bug in the incremental build as done by the KnowledgeAgent. If
>> the KA configuration property drools.agent.newInstance is set to false, some
>> type information is not put into the new KBase.
>> -W
>>
>> This might be related to the kagent using a HashMap instead of a
>> LinkedHashMap to store resources, thus any updates may not be applied in the
>> order that resources where defined....
>>
>
> Not likely with a single DRL in the Change Set XML and on the first build.
>
>>
>> I believe estaban is working on this issue and it may already be fixed.
>>
>
> Not yet.
>
> -W
>
>
>> Mark
>>
>>
>>
>>> but I don't think I had this problem in
>>> 5.1.1.  I'm up and running now with the type fully declared in DRL and I
>>> can
>>> live with that.  Thanks for looking into this.
>>>
>>> --
>>> View this message in context:
>>> http://drools.46999.n3.nabble.com/NPE-on-fact-insertion-if-rule-has-sliding-window-tp3163261p3166323.html
>>>  Sent from the Drools: User forum mailing list archive at Nabble.com.
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>>>
>>
>>
>>
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