[jboss-jira] [JBoss JIRA] (JBRULES-3587) Declarations from "declare" sections don't apply to sub-classes if those live in a different package

[Jörg Henne (JIRA)]

Jörg Henne created JBRULES-3587:
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             Summary: Declarations from "declare" sections don't apply to sub-classes if those live in a different package
                 Key: JBRULES-3587
                 URL: https://issues.jboss.org/browse/JBRULES-3587
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-compiler
    Affects Versions: 5.4.0.Final
            Reporter: Jörg Henne
            Assignee: Mark Proctor


Declarations (like {{@role(event)}}) in a {{declare}}-Section should apply to sub-classes of the declared class, too, but don't if the sub-class resides in a different package than the base class.

Attached you'll find an example which demonstrates the issue. The class {{ButtonEvent}} derives from {{VSCPEvent}} which is declared with{{@role(event)}}. Running {{com.levigo.overlord.DroolsTest}} yields a {{java.lang.ClassCastException: org.drools.common.DefaultFactHandle}} which is caused by the ButtonEvent not being recognized as an event instead of a fact.

The Problem goes away if {{ButtonEvent}} is declared as an event (uncomment the section in {{overlord.drl}} or {{ButtonEvent}} is moved to the same package as {{VSCPEvent}}.

For more information see the referenced forum thread.

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