Tom Watson created FELIX-6251:
---------------------------------
Summary: Possible NullPointerException when
DependencyManager.m_tracker is null
Key: FELIX-6251
URL: https://issues.apache.org/jira/browse/FELIX-6251
Project: Felix
Issue Type: Improvement
Components: Declarative Services (SCR)
Affects Versions: scr-2.1.16
Reporter: Tom Watson
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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