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https://issues.apache.org/jira/browse/FELIX-6251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carsten Ziegeler closed FELIX-6251.
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> Possible NullPointerException when DependencyManager.m_tracker is null
> ----------------------------------------------------------------------
>
> Key: FELIX-6251
> URL: https://issues.apache.org/jira/browse/FELIX-6251
> Project: Felix
> Issue Type: Bug
> Components: Declarative Services (SCR)
> Affects Versions: scr-2.1.16
> Reporter: Tom Watson
> Assignee: Tom Watson
> Priority: Major
> Fix For: scr-2.1.18
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> The following NullPointerException can happen once the tracker is closed and
> nulled out. There are a few places where a null check is done. But there
> are many more where the null
> org.apache.felix.scr.impl.manager.DependencyManager.m_tracker would cause an
> NPE.
> {code:java}
> FrameworkEvent ERROR java.lang.NullPointerException
> at
> org.apache.felix.scr.impl.manager.DependencyManager$MultipleDynamicCustomizer.removedService(DependencyManager.java:379)
> at
> org.apache.felix.scr.impl.manager.DependencyManager$MultipleDynamicCustomizer.removedService(DependencyManager.java:296)
> at
> org.apache.felix.scr.impl.manager.ServiceTracker$Tracked.customizerRemoved(ServiceTracker.java:1242)
> at
> org.apache.felix.scr.impl.manager.ServiceTracker$Tracked.customizerRemoved(ServiceTracker.java:1137)
> at
> org.apache.felix.scr.impl.manager.ServiceTracker$AbstractTracked.untrack(ServiceTracker.java:997)
> at
> org.apache.felix.scr.impl.manager.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:1176)
> at
> org.apache.felix.scr.impl.BundleComponentActivator$ListenerInfo.serviceChanged(BundleComponentActivator.java:125)
> at
> org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:113)
> at
> org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:985)
> at
> org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:234)
> at
> org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:151)
> at
> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:896)
> at
> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:834)
> at
> org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.unregister(ServiceRegistrationImpl.java:227)
> {code}
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