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Date: Tue, 20 Dec 2011 21:47:31 +0000 (UTC)
From: "Felix Meschberger (Commented) (JIRA)" <jira@apache.org>
To: dev@felix.apache.org
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Subject: [jira] [Commented] (FELIX-3288) NPE when component exposed as a
 service with servicefactory = true
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    [ https://issues.apache.org/jira/browse/FELIX-3288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13173532#comment-13173532 ] 

Felix Meschberger commented on FELIX-3288:
------------------------------------------

You might want to update the SCR bundle to the latest release (1.6.0 at this time). This contains lots of fixes since the virtually age-old 1.0.2 release.
                
> NPE when component exposed as a service with servicefactory = true
> ------------------------------------------------------------------
>
>                 Key: FELIX-3288
>                 URL: https://issues.apache.org/jira/browse/FELIX-3288
>             Project: Felix
>          Issue Type: Bug
>          Components: Declarative Services (SCR)
>    Affects Versions: scr-1.0.2
>            Reporter: Jarek Gawor
>
> I have a component that is exposed as a service and is also configured with servicefactory = true. I see the following NPE when shutting the framework:
> java.lang.NullPointerException
> 	at org.apache.felix.scr.impl.manager.ImmediateComponentManager.disposeImplementationObject(ImmediateComponentManager.java:252)
> 	at org.apache.felix.scr.impl.manager.ImmediateComponentManager.deleteComponent(ImmediateComponentManager.java:135)
> 	at org.apache.felix.scr.impl.manager.AbstractComponentManager$Satisfied.deactivate(AbstractComponentManager.java:1075)
> 	at org.apache.felix.scr.impl.manager.AbstractComponentManager.disposeInternal(AbstractComponentManager.java:357)
> 	at org.apache.felix.scr.impl.manager.AbstractComponentManager.dispose(AbstractComponentManager.java:196)
> 	at org.apache.felix.scr.impl.config.ConfiguredComponentHolder.disposeComponents(ConfiguredComponentHolder.java:299)
> 	at org.apache.felix.scr.impl.BundleComponentActivator.dispose(BundleComponentActivator.java:319)
> 	at org.apache.felix.scr.impl.Activator.disposeComponents(Activator.java:340)
> 	at org.apache.felix.scr.impl.Activator.bundleChanged(Activator.java:207)
> Since the component is configured with servicefactory = true, ServiceFactoryComponentManager is used to manage the object. ServiceFactoryComponentManager overrides the createComponent() method from ImmediateComponentManager. ServiceFactoryComponentManager also intended (I think) to override the corresponding deleteComponent() method from ImmediateComponentManager. However, the signature of the deleteComponent() in ImmediateComponentManager has changed a bit so the override doesn't work anymore. So that's what I think is causing the problem in this case.

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