Details
Major Description
Problem when Felix is starting up and iPojo services are still registering while and in the meantime a stop Felix is requested.
The code to stop Felix is : getBundle(0).stop()
By looking at the Thread Dump it appears that iPojo is synchronously dealing with a bundle being stopped while at the same time trying to register a service for that bundle.
Since the component framework is holding and/or needs its own internal lock when dealing with the stopped bundle and registering the service, we get into a deadlock situation, since both threads also need the bundle lock too.
ThreadDump (full TD in attachement):
"FelixStartLevel" daemon prio=6 tid=0x0000000006d6c000 nid=0xb00 waiting for monitor entry [0x0000000007fbf000]
java.lang.Thread.State: BLOCKED (on object monitor)
at org.apache.felix.ipojo.IPojoFactory.removeFactoryStateListener(IPojoFactory.java:491)
- waiting to lock <0x00000000c048c790> (a org.apache.felix.ipojo.ComponentFactory)
at org.apache.felix.ipojo.InstanceCreator.removeFactory(InstanceCreator.java:187)
at org.apache.felix.ipojo.Extender.closeManagementFor(Extender.java:156)
at org.apache.felix.ipojo.Extender.bundleChanged(Extender.java:129)
at org.apache.felix.framework.util.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:868)
at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:789)
at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:514)
at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4245)
at org.apache.felix.framework.Felix.stopBundle(Felix.java:2352)
at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1215)
at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:295)
at java.lang.Thread.run(Unknown Source)
"Thread-2" daemon prio=6 tid=0x0000000007050800 nid=0x6d8 in Object.wait() [0x00000000084bd000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00000000c029d238> (a [Ljava.lang.Object
at java.lang.Object.wait(Object.java:485)
at org.apache.felix.framework.Felix.acquireBundleLock(Felix.java:4872) - locked <0x00000000c029d238> (a [Ljava.lang.Object
at org.apache.felix.framework.Felix.registerService(Felix.java:3206)
at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)
at org.apache.felix.ipojo.IPojoContext.registerService(IPojoContext.java:338)
at org.apache.felix.ipojo.handlers.providedservice.ProvidedService.registerService(ProvidedService.java:345) - locked <0x00000000eafc8ea0> (a org.apache.felix.ipojo.handlers.providedservice.ProvidedService)
at org.apache.felix.ipojo.handlers.providedservice.ProvidedServiceHandler.__stateChanged(ProvidedServiceHandler.java:494)
at org.apache.felix.ipojo.handlers.providedservice.ProvidedServiceHandler.stateChanged(ProvidedServiceHandler.java)
at org.apache.felix.ipojo.InstanceManager.setState(InstanceManager.java:471)
at org.apache.felix.ipojo.InstanceManager.start(InstanceManager.java:353)
at org.apache.felix.ipojo.ComponentFactory.createInstance(ComponentFactory.java:166)
at org.apache.felix.ipojo.IPojoFactory.createComponentInstance(IPojoFactory.java:301) - locked <0x00000000c048c790> (a org.apache.felix.ipojo.ComponentFactory)
at org.apache.felix.ipojo.IPojoFactory.createComponentInstance(IPojoFactory.java:238)
at org.apache.felix.ipojo.Factory$$Proxy.createComponentInstance(Unknown Source)
at com.axway.cmp.ume.ui.internal.ComponentDefinition.__createAndStart(ComponentDefinition.java:147)
at com.axway.cmp.ume.ui.internal.ComponentDefinition.createAndStart(ComponentDefinition.java)
at com.axway.cmp.ume.ui.internal.ComponentDefinition.__validate(ComponentDefinition.java:85)
at com.axway.cmp.ume.ui.internal.ComponentDefinition.validate(ComponentDefinition.java)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.felix.ipojo.util.Callback.call(Callback.java:237)
at org.apache.felix.ipojo.util.Callback.call(Callback.java:193)
at org.apache.felix.ipojo.handlers.lifecycle.callback.LifecycleCallback.call(LifecycleCallback.java:86)
at org.apache.felix.ipojo.handlers.lifecycle.callback.LifecycleCallbackHandler.__stateChanged(LifecycleCallbackHandler.java:162)
at org.apache.felix.ipojo.handlers.lifecycle.callback.LifecycleCallbackHandler.stateChanged(LifecycleCallbackHandler.java)
at org.apache.felix.ipojo.InstanceManager.setState(InstanceManager.java:471)
at org.apache.felix.ipojo.InstanceManager.stateChanged(InstanceManager.java:1314)
at org.apache.felix.ipojo.InstanceManager.setState(InstanceManager.java:496)
at org.apache.felix.ipojo.HandlerManager.stateChanged(HandlerManager.java:239)
at org.apache.felix.ipojo.Handler.setValidity(Handler.java:174)
at org.apache.felix.ipojo.handlers.dependency.DependencyHandler.__checkContext(DependencyHandler.java:186) - locked <0x00000000c048e1a8> (a [Lorg.apache.felix.ipojo.handlers.dependency.Dependency
at org.apache.felix.ipojo.handlers.dependency.DependencyHandler.checkContext(DependencyHandler.java)
at org.apache.felix.ipojo.handlers.dependency.DependencyHandler.__validate(DependencyHandler.java:149)
at org.apache.felix.ipojo.handlers.dependency.DependencyHandler.validate(DependencyHandler.java)
at org.apache.felix.ipojo.util.DependencyModel.validate(DependencyModel.java:642)
at org.apache.felix.ipojo.util.DependencyModel.computeDependencyState(DependencyModel.java:310)
at org.apache.felix.ipojo.util.DependencyModel.manageArrival(DependencyModel.java:399)
at org.apache.felix.ipojo.util.DependencyModel.addedService(DependencyModel.java:335)
at org.apache.felix.ipojo.util.Tracker$Tracked.trackAdding(Tracker.java:725)
at org.apache.felix.ipojo.util.Tracker$Tracked.track(Tracker.java:686)
at org.apache.felix.ipojo.util.Tracker$Tracked.serviceChanged(Tracker.java:647)
at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:932)
at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:793)
at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:543)
at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4261)
at org.apache.felix.framework.Felix.registerService(Felix.java:3276)
at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)
at org.apache.felix.ipojo.IPojoFactory.start(IPojoFactory.java:591) - locked <0x00000000c048c790> (a org.apache.felix.ipojo.ComponentFactory)
at org.apache.felix.ipojo.Extender.createAbstractFactory(Extender.java:439)
at org.apache.felix.ipojo.Extender.parse(Extender.java:264)
at org.apache.felix.ipojo.Extender.startManagementFor(Extender.java:208)
at org.apache.felix.ipojo.Extender.access$600(Extender.java:52)
at org.apache.felix.ipojo.Extender$CreatorThread.run(Extender.java:682)
at java.lang.Thread.run(Unknown Source)