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https://issues.apache.org/jira/browse/FELIX-5213?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Neil Bartlett reopened FELIX-5213:
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Reopening on the advice on BJ, who makes the following comment:
"The component activate method is being activated because someone wants the
service object. Since the ServiceRegistration is passed to the
ServiceFactory.getService method, SCR can certainly provide the
ServiceReference in the call to context.getServiceReference in the activate
method."
> ComponentContext.getServiceReference returns null though service registered
> ---------------------------------------------------------------------------
>
> Key: FELIX-5213
> URL: https://issues.apache.org/jira/browse/FELIX-5213
> Project: Felix
> Issue Type: Bug
> Components: Declarative Services (SCR)
> Affects Versions: scr-2.0.2
> Reporter: Neil Bartlett
>
> In a component that provides a service and is not immediate, the service is
> registered before activation. Therefore the service reference of the
> registered service should be available to the component, from
> ComponentContext.getServiceReference(), during activation. However the
> following code sample throws NPE:
> {code}
> import org.osgi.framework.Constants;
> import org.osgi.framework.ServiceReference;
> import org.osgi.service.component.ComponentContext;
> import org.osgi.service.component.annotations.Activate;
> import org.osgi.service.component.annotations.Component;
> @Component(service = Object.class, property = "name=scrbug")
> public class Example {
> @Activate
> void activate(ComponentContext context) {
> ServiceReference<?> reference = context.getServiceReference();
> System.out.printf("My service ID is %d%n",
> reference.getProperty(Constants.SERVICE_ID));
> }
> }
> {code}
> Note that the service certainly exists, because I have injected it into a
> second component, in order to force activation of the above.
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