[jboss-jira] [JBoss JIRA] Updated: (JBRULES-2956) Runtime error when using non-boolean expression as a constraint

[Mark Proctor (JIRA)]

     [ https://issues.jboss.org/browse/JBRULES-2956?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mark Proctor updated JBRULES-2956:
----------------------------------

    Assignee: Edson Tirelli  (was: Mark Proctor)


> Runtime error when using non-boolean expression as a constraint
> ---------------------------------------------------------------
>
>                 Key: JBRULES-2956
>                 URL: https://issues.jboss.org/browse/JBRULES-2956
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: drools-compiler
>    Affects Versions: 5.2.0.M2
>            Reporter: Wolfgang Laun
>            Assignee: Edson Tirelli
>
> declare Num
>   num  : Integer
>   even : boolean
> end
> rule start
> when
> then
>     insert( new Num( 42, true ) );
> end
> rule sumem
> when
>     $n: Num( num, num + 1, eval(num + 1) )
> then
> end
> All of these constraints result in a RUNTIME error ar java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Boolean org.drools.base.mvel.MVELPredicateExpression.evaluate(MVELPredicateExpression.java:97)

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