[jboss-jira] [JBoss JIRA] (DROOLS-5315) "Contains" is not null-safe with executable model

"Contains" is not null-safe with executable model ------------------------------------------------- Key: DROOLS-5315 URL: https://issues.redhat.com/browse/DROOLS-5315 Project: Drools Issue Type: Bug Components: core engine Affects Versions: 7.37.0.Final Reporter: Matteo Casalino Assignee: Mario Fusco Priority: Major Attachments: null-contains-exec-model.zip 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: {noformat} rule "contains constraint" when Pojo(integerList contains 3) then end {noformat} Error: {noformat} 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) ... {noformat} 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.