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

[Wolfgang Laun]

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


> 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.
>
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