Details
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Bug
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Resolution: Done
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Major
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None
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7.37.0.Final
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None
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2020 Week 19-21 (from May 4)
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NEW
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NEW
Description
When executing rules with executable model, contains constraints are not null-safe, whereas they are in DRL mode
Example of DRL that exhibits the behavior:
rule "contains constraint"
when Pojo(integerList contains 3)
then
end
Error:
java.lang.RuntimeException: java.lang.RuntimeException: java.lang.NullPointerException
at org.drools.modelcompiler.constraints.ConstraintEvaluator.evaluate(ConstraintEvaluator.java:95)
at org.drools.modelcompiler.constraints.LambdaConstraint.isAllowed(LambdaConstraint.java:132)
at org.drools.core.reteoo.AlphaNode.assertObject(AlphaNode.java:139)
at org.drools.core.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:70)
at org.drools.core.reteoo.ObjectTypeNode.propagateAssert(ObjectTypeNode.java:329)
...
The example works fine when running without executable model.
The documentation is not explicit about whether contains should be null safe or not, so we are unsure whether this is to be considered or not a regression.
