[rules-users] Problem when using multiple rule files (Drools 5)

[Wolfgang Laun]

Could it be that the fact where the NPE happens during its insert contains a
field of some wrapper type (e.g.)Integer that's null and needs to be
converted to a simple type (e.g. int)?

But the same NPE should happen when you insert the same fact with rules
coming from a single file - but you'll know whether you have changed the
facts.

-W

On Sat, Jul 25, 2009 at 5:33 PM, Olaf Raether <o.raether at epro.de> wrote:

>
> Mmmh,
>
> i still get an NPE but from a different function within
> ClassFieldReader.java
>
> with the 4.07 Api calls it was
>
> at org.drools.base.ClassFieldReader.isNullValue(ClassFieldReader.java:183)
>
> now its
>
> java.lang.NullPointerException
>        at
> org.drools.base.ClassFieldReader.getIndex(ClassFieldReader.java:78)
>        at
>
> org.drools.util.LeftTupleIndexHashTable.<init>(LeftTupleIndexHashTable.java:48)
>        at
>
> org.drools.util.LeftTupleIndexHashTable.<init>(LeftTupleIndexHashTable.java:35)
>        at
>
> org.drools.common.DoubleBetaConstraints.createBetaMemory(DoubleBetaConstraints.java:231)
>        at org.drools.reteoo.BetaNode.createMemory(BetaNode.java:340)
>        .....
>
> i have no idea how to solve this at the moment.
>
>
>
>
> --
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> http://www.nabble.com/Problem-when-using-multiple-rule-files-%28Drools-5%29-tp24623347p24658903.html
> Sent from the drools - user mailing list archive at Nabble.com.
>
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