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https://issues.apache.org/jira/browse/FELIX-3723?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Felix Meschberger closed FELIX-3723.
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Close after release
> ClassCastException on ConfigurationAdmin service creating components
> ---------------------------------------------------------------------
>
> Key: FELIX-3723
> URL: https://issues.apache.org/jira/browse/FELIX-3723
> Project: Felix
> Issue Type: Bug
> Components: Declarative Services (SCR)
> Affects Versions: scr-1.6.0
> Reporter: Felix Meschberger
> Assignee: Felix Meschberger
> Fix For: scr-1.6.2
>
>
> Consider this situation:
> * Felix SCR 1.6
> Import-Package:
> org.osgi.service.cm;version=[1.2,2.0);resolution:=optional
> * OSGi Enterprise R5 API bundle
> Export-Package: org.osgi.service.cm;version=1.5
> * Felix Configuration Admin 1.4.0
> Export-Package: org.osgi.service.cm;version=1.4
> Import-Package: org.osgi.service.cm;version=[1.4,1.5)
> * Component Bundle
> Import-Package: org.osgi.service.cm;version=[1.4,1.5)
> A component from the "Component Bundle" is registered and SCR happily starts
> creating it. SCR uses the Component Bundle's context to get the Configuration
> Admin serivce. Since the Component Bundle is wired tothe Felix Configuration
> Admin bundle it has an appropriate service implementation and the reference
> can be returned.
> SCR then uses the Component Bundle's BundleContext to get the service. This
> succeeds.
> Now SCR tries to cast the service Object to a ConfigurationAdmin object. But
> since the SCR bundle itself is wired to another API (the Enterprise one), the
> ConfugurationAdmin interface class objects are not the same and the cast
> fails.
> Consequently, since this is not expected (but should be in this case),
> component creation fails.
> The returned service should be checked, whether it can be cast to prevent
> this kind of failure.
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