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https://issues.apache.org/jira/browse/SLING-12741?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sagar Miglani resolved SLING-12741.
-----------------------------------
Resolution: Fixed
> NPE resource resolver during resource provider unregisteration
> --------------------------------------------------------------
>
> Key: SLING-12741
> URL: https://issues.apache.org/jira/browse/SLING-12741
> Project: Sling
> Issue Type: Bug
> Components: ResourceResolver
> Affects Versions: Resource Resolver 1.12.0
> Reporter: Sagar Miglani
> Assignee: Sagar Miglani
> Priority: Major
>
> Following NPE can be observed during unregistration of resource proivder:
> {code:xml}
> [FelixLogListener] Events.Framework.org.apache.sling.resourceresolver
> FrameworkEvent ERROR (java.lang.NullPointerException: Cannot invoke
> "org.apache.sling.resourceresolver.impl.providers.ResourceProviderHandler.isUsed()"
> because "deactivateHandler" is null)
> java.lang.NullPointerException: Cannot invoke
> "org.apache.sling.resourceresolver.impl.providers.ResourceProviderHandler.isUsed()"
> because "deactivateHandler" is null
> at
> org.apache.sling.resourceresolver.impl.providers.ResourceProviderTracker.remove(ResourceProviderTracker.java:301)
>
> at
> org.apache.sling.resourceresolver.impl.providers.ResourceProviderTracker.unregister(ResourceProviderTracker.java:202)
>
> at
> org.apache.sling.resourceresolver.impl.providers.ResourceProviderTracker$1.removedService(ResourceProviderTracker.java:111)
>
> at
> org.apache.sling.resourceresolver.impl.providers.ResourceProviderTracker$1.removedService(ResourceProviderTracker.java:107)
>
> at
> org.osgi.util.tracker.ServiceTracker$Tracked.customizerRemoved(ServiceTracker.java:970)
> at
> org.osgi.util.tracker.ServiceTracker$Tracked.customizerRemoved(ServiceTracker.java:872)
> at
> org.osgi.util.tracker.AbstractTracked.untrack(AbstractTracked.java:341)
> at
> org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:912)
> at
> org.apache.felix.framework.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:990)
> at
> org.apache.felix.framework.EventDispatcher.fireEventImmediately(EventDispatcher.java:838)
> at
> org.apache.felix.framework.EventDispatcher.fireServiceEvent(EventDispatcher.java:545)
> at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4863)
> at org.apache.felix.framework.Felix.access$000(Felix.java:111)
> at org.apache.felix.framework.Felix$1.serviceChanged(Felix.java:440)
> {code}
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