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https://issues.apache.org/jira/browse/SLING-11919?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Seifert closed SLING-11919.
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> [osgi-mock] Support R8 field injection of type Optional
> -------------------------------------------------------
>
>                 Key: SLING-11919
>                 URL: https://issues.apache.org/jira/browse/SLING-11919
>             Project: Sling
>          Issue Type: Improvement
>          Components: Testing
>    Affects Versions: Testing OSGi Mock 3.3.8
>            Reporter: Julian Sedding
>            Assignee: Julian Sedding
>            Priority: Minor
>             Fix For: Testing OSGi Mock 3.3.10
>
>
> The OSGi R8 Declarative Services specification allows a component's field of 
> type {{Optional}} to be annotated with {{@Reference}}. In this case the 
> cardinality defaults to {{OPTIONAL}} and depending on the presence of the 
> service an empty {{Optional}}, or an {{Optional}} holding the service, is 
> injected.
> Injecting fields of type {{Optional}} should be supported in {{osgi-mock}}.
> See also 
> https://docs.osgi.org/specification/osgi.cmpn/8.0.0/service.component.html#service.component-field.injection
> cc [~sseifert]



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