[FELIX-4245] Deadlock in Dependency

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: ipojo-runtime-1.10.1
• Fix Version/s: ipojo-runtime-1.11.0
• Component/s: iPOJO
• Assignee: Clement Escoffier
• Reporter: Clement Escoffier
• Created: 27/Sep/13 07:37
• Updated: 08/Oct/13 17:17
• Resolved: 27/Sep/13 07:42

Description

There is a deadlock condition in the dependency class. The dependency class does not follow the synchronization protocol from the dependency model. This leads to the deadlock.

First Thread:
Name: fileinstall-/home/torito/workspace/Cilia/tests/runtime/target/distribution/cilia-remote-distribution/load
State: BLOCKED on org.apache.felix.ipojo.handlers.dependency.Dependency@1d9aed0 owned by: [iPOJO] pool-248-thread-1
Total blocked: 3 Total waited: 4

Stack trace:
org.apache.felix.ipojo.handlers.dependency.Dependency.isFrozen(Dependency.java:236)
org.apache.felix.ipojo.util.DependencyModel.onChange(DependencyModel.java:978)
org.apache.felix.ipojo.dependency.impl.ServiceReferenceManager.fireUpdate(ServiceReferenceManager.java:448)
org.apache.felix.ipojo.dependency.impl.ServiceReferenceManager.onNewMatchingService(ServiceReferenceManager.java:412)
org.apache.felix.ipojo.dependency.impl.ServiceReferenceManager.addedService(ServiceReferenceManager.java:391)
org.apache.felix.ipojo.util.Tracker$Tracked.trackAdding(Tracker.java:711)
org.apache.felix.ipojo.util.Tracker$Tracked.track(Tracker.java:672)
org.apache.felix.ipojo.util.Tracker$Tracked.serviceChanged(Tracker.java:633)
org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:932)
org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:793)
org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:543)
org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4260)
org.apache.felix.framework.Felix.registerService(Felix.java:3275)
org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)
org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:320)
org.apache.felix.ipojo.IPojoContext.registerService(IPojoContext.java:414)
org.apache.felix.ipojo.handlers.architecture.ArchitectureHandler.__M_configure(ArchitectureHandler.java:64)
org.apache.felix.ipojo.handlers.architecture.ArchitectureHandler.configure(ArchitectureHandler.java)
org.apache.felix.ipojo.HandlerManager.init(HandlerManager.java:73)
org.apache.felix.ipojo.InstanceManager.configure(InstanceManager.java:203)
org.apache.felix.ipojo.ComponentFactory.createInstance(ComponentFactory.java:177)
org.apache.felix.ipojo.IPojoFactory.createComponentInstance(IPojoFactory.java:309)

• locked org.apache.felix.ipojo.ComponentFactory@2a3025
  org.apache.felix.ipojo.IPojoFactory.createComponentInstance(IPojoFactory.java:236)
  org.ow2.chameleon.rose.api.Instance$InstanceCreator.addingService(Instance.java:140)
  org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:896)
  org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:261)
  org.osgi.util.tracker.AbstractTracked.trackInitial(AbstractTracked.java:184)
  org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:339)
  org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:273)
  org.ow2.chameleon.rose.api.Instance.start(Instance.java:55)
  org.ow2.chameleon.rose.api.Machine.start(Machine.java:72)
  org.ow2.chameleon.rose.configurator.Configurator.__M_install(Configurator.java:134)
  org.ow2.chameleon.rose.configurator.Configurator.install(Configurator.java)
  org.apache.felix.fileinstall.internal.DirectoryWatcher.install(DirectoryWatcher.java:862)
  org.apache.felix.fileinstall.internal.DirectoryWatcher.install(DirectoryWatcher.java:790)
  org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:428)
  org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:245)

Second Thread:

Name: [iPOJO] pool-248-thread-1
State: WAITING on java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync@170e93a owned by: fileinstall-/home/torito/workspace/Cilia/tests/runtime/target/distribution/cilia-remote-distribution/load
Total blocked: 6 Total waited: 2

Stack trace:
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(LockSupport.java:156)
java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:811)
java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireShared(AbstractQueuedSynchronizer.java:941)
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1261)
java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:594)
org.apache.felix.ipojo.util.DependencyModel.acquireReadLockIfNotHeld(DependencyModel.java:593)
org.apache.felix.ipojo.util.DependencyModel.getBindingPolicy(DependencyModel.java:838)
org.apache.felix.ipojo.handlers.dependency.Dependency.onObjectCreation(Dependency.java:258)

• locked org.apache.felix.ipojo.handlers.dependency.Dependency@1d9aed0
  org.apache.felix.ipojo.handlers.dependency.DependencyHandler.__M_onCreation(DependencyHandler.java:702)
  org.apache.felix.ipojo.handlers.dependency.DependencyHandler.onCreation(DependencyHandler.java)
  org.apache.felix.ipojo.InstanceManager.getPojoObject(InstanceManager.java:934)
  org.apache.felix.ipojo.handlers.lifecycle.callback.LifecycleCallbackHandler.__M_stateChanged(LifecycleCallbackHandler.java:156)
  org.apache.felix.ipojo.handlers.lifecycle.callback.LifecycleCallbackHandler.stateChanged(LifecycleCallbackHandler.java)
  org.apache.felix.ipojo.InstanceManager.setState(InstanceManager.java:536)
  org.apache.felix.ipojo.InstanceManager.start(InstanceManager.java:418)
  org.apache.felix.ipojo.ComponentFactory.createInstance(ComponentFactory.java:178)
  org.apache.felix.ipojo.IPojoFactory.createComponentInstance(IPojoFactory.java:309)
• locked org.apache.felix.ipojo.ComponentFactory@114e29e
  org.apache.felix.ipojo.IPojoFactory.createComponentInstance(IPojoFactory.java:236)
  org.apache.felix.ipojo.extender.internal.linker.ManagedType$InstanceSupport$1.call(ManagedType.java:290)
  org.apache.felix.ipojo.extender.internal.linker.ManagedType$InstanceSupport$1.call(ManagedType.java:284)
  org.apache.felix.ipojo.extender.internal.queue.JobInfoCallable.call(JobInfoCallable.java:100)
  java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
  java.util.concurrent.FutureTask.run(FutureTask.java:138)
  java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
  java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
  java.lang.Thread.run(Thread.java:662)