[jboss-jira] [JBoss JIRA] (DROOLS-1167) Comparison operation error

[Mario Fusco (JIRA)]

    [ https://issues.jboss.org/browse/DROOLS-1167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13261828#comment-13261828 ] 

Mario Fusco commented on DROOLS-1167:
-------------------------------------

Sorry, but it's impossible to debug your issue without a complete reproducer. Can you provide one, or at least send the source code of your domain objects?

> Comparison operation error
> --------------------------
>
>                 Key: DROOLS-1167
>                 URL: https://issues.jboss.org/browse/DROOLS-1167
>             Project: Drools
>          Issue Type: Bug
>    Affects Versions: 6.4.0.Final
>         Environment: OracleLinux 6, Java 7/8
>            Reporter: Pierangelo Repetti
>            Assignee: Mario Fusco
>         Attachments: failing_rule.drl
>
>
> I migrated a set of rules from version 5.4 to 6.3. All rules are "Technical rules".
> After migration, I get the following error
> _Unable to Analyse Expression value != 0: [Error: Comparison operation requires compatible types. Found class org.mvel2.util.MethodStub and class java.lang.Integer] [Near : {... value != 0 ....}] ^ [Line: 29, Column: 9]
> _
> on the following line of a rule
> _$imponibile : RuleElement(label=="IMPONIBILE", value != 0, imponibile : value, imponibile_artmap : artmap);_
> RuleElement is a model class (loaded as a dependency) and declares a value attribute like 
> _private Double value;_
> The same rule compiled without problems in 5.4.
> Thanks



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