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https://issues.apache.org/jira/browse/FELIX-2486?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Felix Meschberger resolved FELIX-2486.
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Resolution: Fixed
Fixed by implementing ClassLoaderJavaClassDescriptor.isA(String) using
Class.isAssignableFrom(Class) in Rev. 979703.
> ClassLoaderJavaClassDescription.isA does not work under certain circumstances
> -----------------------------------------------------------------------------
>
> Key: FELIX-2486
> URL: https://issues.apache.org/jira/browse/FELIX-2486
> Project: Felix
> Issue Type: Bug
> Components: Maven SCR Plugin
> Affects Versions: maven-scr-plugin-1.4.4
> Reporter: Felix Meschberger
> Assignee: Felix Meschberger
> Fix For: maven-scr-plugin-1.4.6
>
>
> Consider two bundles B1 and B2. B1 provides an abstract component AC1. This
> abstract component declares itself to implement Service S by means of
> @scr.service interface="S"
> No AC1 does not itself implement S but it extends a baseclass which in turn
> implements S.
> This bundle B1 builds perfectly and the SCR plugin generates the descriptor
> for the abstract component.
> Now, B2 provides a concrete component CC2 extending AC1. B2 fails to build
> while trying to generate the SCR descriptor.
> The reason for this is, that while generating descriptor for CC2, the exsting
> service descriptor for AC1 is validated, particularly the service element.
> This element is checked in the context of the abstract AC1 component class
> internally represented by a ClassLoaderJavaClassDescriptor instance. To
> verify the interface, the isA(String) method is called.
> This is where the problem occurrs: The ClassLoaderJavaClassDescriptor.isA
> method only considers the interfaces directly implemented by the class but
> not any interfaces implemented by the parent class. Moreover, this
> implementation does not allow for classes (as opposed to interfaces) to be
> used as service interface name.
> The fix is probably to use Class.isAssignableFrom to implement the isA method.
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