[jboss-jira] [JBoss JIRA] (DROOLS-4990) NullPointerException with executable model using accumulate max with null Date field

[Mario Fusco (Jira)]

     [ https://issues.redhat.com/browse/DROOLS-4990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mario Fusco updated DROOLS-4990:
--------------------------------
    Sprint: 2020 Week 04-06 (from Jan 20)


> NullPointerException with executable model using accumulate max with null Date field
> ------------------------------------------------------------------------------------
>
>                 Key: DROOLS-4990
>                 URL: https://issues.redhat.com/browse/DROOLS-4990
>             Project: Drools
>          Issue Type: Bug
>          Components: core engine, executable model
>    Affects Versions: 7.32.0.Final
>            Reporter: Martin Weiler
>            Assignee: Mario Fusco
>            Priority: Major
>              Labels: support
>
> Executing a rule containing accumulate max, eg:
> {code}
> rule AccumulateMaxDate
>   when
>   $max1 : Number() from accumulate(
>   StockTick(isSetDueDate == true
>         ,$time : dueDate);
>        max($time.getTime().getTime()))
>   then
>   end
> {code}
> fails with a NPE at runtime if the StockDate.dueDate field is null:
> {noformat}
> Caused by: java.lang.NullPointerException
> 	at defaultpkg.RulesA0DFC3D10EA29F3818B87E11918D8020RuleMethods0.lambda$rule_AccumulateMaxDate$c9e019d8$1(RulesA0DFC3D10EA29F3818B87E11918D8020RuleMethods0.java:34)
> 	at org.drools.model.functions.Function1$Impl.apply(Function1.java:35)
> 	at org.drools.model.view.BindViewItem1.eval(BindViewItem1.java:85)
> 	at org.drools.modelcompiler.constraints.BindingEvaluator.evaluate(BindingEvaluator.java:39)
> 	at org.drools.modelcompiler.constraints.BindingEvaluator.evaluate(BindingEvaluator.java:35)
> 	at org.drools.modelcompiler.constraints.LambdaAccumulator$BindingAcc.getAccumulatedObject(LambdaAccumulator.java:154)
> 	at org.drools.modelcompiler.constraints.LambdaAccumulator.accumulate(LambdaAccumulator.java:88)
> 	at org.drools.core.rule.SingleAccumulate.accumulate(SingleAccumulate.java:97)
> 	... 53 more
> {noformat}



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