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https://issues.apache.org/jira/browse/FELIX-3787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13504576#comment-13504576
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Dmytro Pishchukhin commented on FELIX-3787:
-------------------------------------------
some additional info for the issue:
- there are 1+ Controller service. The difference is only SERVICE_RANK property.
- Component is in active state when only 1 Controller service is available.
Component is in registered state when 2 Controller services are registered and
in WebConsole I see that "No Services bound" for all references, but state is
"Satisfied". After some time the Component state changes to active
> NPE on reference update
> -----------------------
>
> Key: FELIX-3787
> URL: https://issues.apache.org/jira/browse/FELIX-3787
> Project: Felix
> Issue Type: Bug
> Components: Declarative Services (SCR)
> Affects Versions: scr-1.6.2
> Reporter: Dmytro Pishchukhin
>
> I defined reference with annotation:
> @Reference(referenceInterface = Controller.class, cardinality =
> ReferenceCardinality.MANDATORY_UNARY, policyOption =
> ReferencePolicyOption.GREEDY)
> protected Controller controller;
> when I install a new service I got an error:
> java.lang.NullPointerException
> at
> org.apache.felix.scr.impl.manager.DependencyManager.serviceAdded(DependencyManager.java:383)
> at
> org.apache.felix.scr.impl.manager.DependencyManager.serviceChanged(DependencyManager.java:159)
> at
> org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:932)
> at
> org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:793)
> at
> org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:543)
> at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4260)
> at org.apache.felix.framework.Felix.registerService(Felix.java:3275)
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