[jira] [Created] (FELIX-6314) NullPointerException in SingleComponentManager.disposeImplementationObject

["Tom Watson (Jira)" <ji...@apache.org>]

Tom Watson created FELIX-6314:
---------------------------------

             Summary: NullPointerException in SingleComponentManager.disposeImplementationObject
                 Key: FELIX-6314
                 URL: https://issues.apache.org/jira/browse/FELIX-6314
             Project: Felix
          Issue Type: Improvement
          Components: Declarative Services (SCR)
    Affects Versions: scr-2.1.20
            Reporter: Tom Watson


Got the following NPE.  Not sure on the scenario that causes it.  It does appear that org.apache.felix.scr.impl.manager.ServiceFactoryComponentManager.deleteComponent(int) will clear the org.apache.felix.scr.impl.manager.ServiceFactoryComponentManager.serviceContexts set outside of a lock and that the implementation of ServiceFactoryComponentManager.ungetService does not account for this.

{quote}
FrameworkEvent ERROR org.osgi.framework.ServiceException: Exception in org.apache.felix.scr.impl.manager.ServiceFactoryComponentManager.ungetService()
        at org.eclipse.osgi.internal.serviceregistry.ServiceFactoryUse.factoryUngetService(ServiceFactoryUse.java:275)
        at org.eclipse.osgi.internal.serviceregistry.ServiceFactoryUse.ungetService(ServiceFactoryUse.java:163)
        at org.eclipse.osgi.internal.serviceregistry.ServiceConsumer$2.ungetService(ServiceConsumer.java:53)
        at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.ungetService(ServiceRegistrationImpl.java:615)
        at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.ungetService(ServiceRegistry.java:573)
        at org.eclipse.osgi.internal.framework.BundleContextImpl.ungetService(BundleContextImpl.java:728)
        at org.apache.felix.scr.impl.manager.SingleRefPair.safeUngetService(SingleRefPair.java:109)
        at org.apache.felix.scr.impl.manager.SingleRefPair.ungetServiceObjects(SingleRefPair.java:74)
        at org.apache.felix.scr.impl.manager.DependencyManager$AbstractCustomizer.ungetService(DependencyManager.java:224)
        at org.apache.felix.scr.impl.manager.DependencyManager$SingleStaticCustomizer.close(DependencyManager.java:1233)
        at org.apache.felix.scr.impl.manager.DependencyManager.deactivate(DependencyManager.java:1375)
        at org.apache.felix.scr.impl.manager.AbstractComponentManager.deactivateDependencyManagers(AbstractComponentManager.java:1241)
        at org.apache.felix.scr.impl.manager.AbstractComponentManager.doDeactivate(AbstractComponentManager.java:833)
        at org.apache.felix.scr.impl.manager.AbstractComponentManager.deactivateInternal(AbstractComponentManager.java:806)
        at org.apache.felix.scr.impl.manager.AbstractComponentManager.dispose(AbstractComponentManager.java:585)
        at org.apache.felix.scr.impl.manager.ConfigurableComponentHolder.disposeComponents(ConfigurableComponentHolder.java:717)
        at org.apache.felix.scr.impl.BundleComponentActivator.dispose(BundleComponentActivator.java:532)
        at org.apache.felix.scr.impl.Activator.disposeComponents(Activator.java:609)
        at org.apache.felix.scr.impl.Activator.access$300(Activator.java:69)
        at org.apache.felix.scr.impl.Activator$ScrExtension.destroy(Activator.java:452)
        at org.apache.felix.scr.impl.AbstractExtender$1.run(AbstractExtender.java:216)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at org.apache.felix.scr.impl.AbstractExtender.destroyExtension(AbstractExtender.java:238)
        at org.apache.felix.scr.impl.AbstractExtender.bundleChanged(AbstractExtender.java:132)
        at org.apache.felix.scr.impl.Activator.bundleChanged(Activator.java:215)
        at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:973)
        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.framework.EquinoxEventPublisher.publishBundleEventPrivileged(EquinoxEventPublisher.java:235)
        at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:141)
        at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:133)
        at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor.publishModuleEvent(EquinoxContainerAdaptor.java:217)
        at org.eclipse.osgi.container.Module.publishEvent(Module.java:498)
        at org.eclipse.osgi.container.Module.doStop(Module.java:656)
        at org.eclipse.osgi.container.Module.stop(Module.java:520)
        at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.decStartLevel(ModuleContainer.java:1885)
        at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1760)
        at org.eclipse.osgi.container.SystemModule.stopWorker(SystemModule.java:275)
        at org.eclipse.osgi.internal.framework.EquinoxBundle$SystemBundle$EquinoxSystemModule.stopWorker(EquinoxBundle.java:202)
        at org.eclipse.osgi.container.Module.doStop(Module.java:658)
        at org.eclipse.osgi.container.Module.stop(Module.java:520)
        at org.eclipse.osgi.container.SystemModule.stop(SystemModule.java:207)
        at org.eclipse.osgi.internal.framework.EquinoxBundle$SystemBundle$EquinoxSystemModule$1.run(EquinoxBundle.java:220)
        at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.NullPointerException
        at org.apache.felix.scr.impl.manager.SingleComponentManager.disposeImplementationObject(SingleComponentManager.java:400)
        at org.apache.felix.scr.impl.manager.ServiceFactoryComponentManager.ungetService(ServiceFactoryComponentManager.java:171)
        at org.eclipse.osgi.internal.serviceregistry.ServiceFactoryUse$2.run(ServiceFactoryUse.java:265)
        at org.eclipse.osgi.internal.serviceregistry.ServiceFactoryUse$2.run(ServiceFactoryUse.java:1)
        at java.base/java.security.AccessController.doPrivileged(AccessController.java:678)
        at org.eclipse.osgi.internal.serviceregistry.ServiceFactoryUse.factoryUngetService(ServiceFactoryUse.java:262)
        ... 44 more
{quote}



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