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https://issues.apache.org/jira/browse/FELIX-4260?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16622164#comment-16622164
]
Brent Daniel commented on FELIX-4260:
-------------------------------------
This is still a problem in the current trunk (or, at least, a very similar
problem.)
I see this when a component is activated and deactivated simultaneously.
AbstractComponentManager activateInternal and deactivateInternal only obtain
the read lock of the ReentrantReadWriteLock so they're able to run
simultaneously. activateInternal runs to the finally block currently on line
744. Then the deactivateInternal thread gets control which causes the service
registration to be unregistered. The activate thread gets control again and
gets an IllegalStateException in serviceRegistration.getReference().
java.lang.IllegalStateException: The service has been unregistered
at
org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.getReferenceImpl(ServiceRegistrationImpl.java:285)
at
org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.getReference(ServiceRegistrationImpl.java:274)
at
org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:759)
> IllegalStateException: The service has been unregistered
> --------------------------------------------------------
>
> Key: FELIX-4260
> URL: https://issues.apache.org/jira/browse/FELIX-4260
> Project: Felix
> Issue Type: Bug
> Reporter: Christoph Läubrich
> Priority: Blocker
>
> Currently I get this as an framework Error:
> java.lang.IllegalStateException: The service has been unregistered
> at
> org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.unregister(ServiceRegistrationImpl.java:209)
> at
> org.apache.felix.scr.impl.manager.AbstractComponentManager.registerService(AbstractComponentManager.java:668)
> at
> org.apache.felix.scr.impl.manager.AbstractComponentManager.registerService(AbstractComponentManager.java:644)
> at
> org.apache.felix.scr.impl.manager.AbstractComponentManager.registerComponentService(AbstractComponentManager.java:688)
> at
> org.apache.felix.scr.impl.manager.AbstractComponentManager$Unsatisfied.activate(AbstractComponentManager.java:1481)
> at
> org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:550)
> at
> org.apache.felix.scr.impl.manager.DependencyManager.serviceAdded(DependencyManager.java:333)
> at
> org.apache.felix.scr.impl.manager.DependencyManager.serviceChanged(DependencyManager.java:159)
> at
> org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:104)
> at
> org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:861)
> at
> org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
> at
> org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
> at
> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:819)
> at
> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:771)
> at
> org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.java:130)
> at
> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:214)
> at
> org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:433)
> at
> org.apache.felix.scr.impl.manager.AbstractComponentManager.registerService(AbstractComponentManager.java:660)
> at
> org.apache.felix.scr.impl.manager.AbstractComponentManager.registerService(AbstractComponentManager.java:644)
> at
> org.apache.felix.scr.impl.manager.AbstractComponentManager.registerComponentService(AbstractComponentManager.java:688)
> at
> org.apache.felix.scr.impl.manager.AbstractComponentManager$Unsatisfied.activate(AbstractComponentManager.java:1481)
> at
> org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:550)
> at
> org.apache.felix.scr.impl.manager.AbstractComponentManager.enable(AbstractComponentManager.java:261)
> at
> org.apache.felix.scr.impl.config.ImmediateComponentHolder.enableComponents(ImmediateComponentHolder.java:328)
> at
> org.apache.felix.scr.impl.BundleComponentActivator.initialize(BundleComponentActivator.java:158)
> at
> org.apache.felix.scr.impl.BundleComponentActivator.<init>(BundleComponentActivator.java:113)
> at
> org.apache.felix.scr.impl.Activator.loadComponents(Activator.java:261)
> at org.apache.felix.scr.impl.Activator.bundleChanged(Activator.java:179)
> at
> org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:847)
> at
> org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
> at
> org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
> at
> org.eclipse.osgi.framework.internal.core.Framework.publishBundleEventPrivileged(Framework.java:1522)
> at
> org.eclipse.osgi.framework.internal.core.Framework.publishBundleEvent(Framework.java:1458)
> at
> org.eclipse.osgi.framework.internal.core.Framework.publishBundleEvent(Framework.java:1453)
> at
> org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:391)
> at
> org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:389)
> at
> org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1130)
> at
> org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:559)
> at
> org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:544)
> at
> org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:457)
> at
> org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:243)
> at
> org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:438)
> at
> org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:1)
> at
> org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
> at
> org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)
> This currently prevents the starting of one of my components. It seems that
> there is some kind of concurrency. If the ServiceReference is handled in a
> concurrent way, the IllegalStateException must be caught because it is
> possible that the service was already unregistered automatically in the event
> of an refresh/stop of the bundle.
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