[jboss-jira] [JBoss JIRA] (JBRULES-3145) Types declared in DRL with no fields are not included in KnowledgeBase compiled by ChangeSet

[RH Bugzilla Integration (JIRA)]

    [ https://issues.jboss.org/browse/JBRULES-3145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12687338#comment-12687338 ] 

RH Bugzilla Integration commented on JBRULES-3145:
--------------------------------------------------

Edson Tirelli <etirelli at redhat.com> made a comment on [bug 811745|https://bugzilla.redhat.com/show_bug.cgi?id=811745]

We found the problem and discussed the solutions with the Guvnor team. Expect to have this fixed over the next couple days, as the Guvnor team would like to assess the whole impact it will have on existing deployments before delivering.
                
> Types declared in DRL with no fields are not included in KnowledgeBase compiled by ChangeSet
> --------------------------------------------------------------------------------------------
>
>                 Key: JBRULES-3145
>                 URL: https://issues.jboss.org/browse/JBRULES-3145
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 5.2.0.Final
>         Environment: Drools 5.2.0 Final, Guvnor 5.2.0 Final
>            Reporter: John Fullard
>            Assignee: Edson Tirelli
>             Fix For: 5.3.0.Final
>
>         Attachments: new_repository_export.zip
>
>
> Setting up KnowledgeBase using KnowledgeAgent which is pulling package from Guvnor.  DRL declares type, which already exists in client model, with @role(event) and no fields.  Get the following stack trace when inserting an object:
> java.lang.NullPointerException 
>         at org.drools.reteoo.ReteooFactHandleFactory.newFactHandle(ReteooFactHandleFactory.java:56) 
>         at org.drools.common.AbstractFactHandleFactory.newFactHandle(AbstractFactHandleFactory.java:80) 
>         at org.drools.common.AbstractFactHandleFactory.newFactHandle(AbstractFactHandleFactory.java:65) 
>         at org.drools.common.NamedEntryPoint.createHandle(NamedEntryPoint.java:705) 
>         at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:282) 
>         at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:905) 
>         at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:864) 
>         at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:255) 
>         at john.DroolsError.runRules(DroolsError.java:48) 
>         at john.DroolsError.main(DroolsError.java:40) 
> If the type is fully declared in the DRL, the NPE does not occur.
> When compiling a DRL from a Change Set, the resulting package in the Knowledge Base does not contain declare'd types that do not contain fields; it only contains declares with at least one field. This results in a ClassObjectTypeConf with a typeDecl == null.

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