Issue

After applying Patch5 in JBoss Fuse, customer can not shutdown the root container using CTRL+D

JBossFuse:karaf@root>mq-create broker2
JBossFuse:karaf@root>container-add-profile root broker2 

The shutdown hangs and we could see "Stop for ActiveMQ Broker: broker2" thread is BLOCKED and waiting on object which is locked is locked by FelixShutdown:

"Stop for ActiveMQ Broker: broker2" prio=5 tid=7fdcfedc4800 nid=0x1272ac000 waiting for monitor entry [1272ab000]
   java.lang.Thread.State: BLOCKED (on object monitor)
    at org.fusesource.mq.fabric.ActiveMQServiceFactory$ClusteredConfiguration.org$fusesource$mq$fabric$ActiveMQServiceFactory$ClusteredConfiguration$$interruptAndWaitForStart(ActiveMQServiceFactory.scala:433)
    - waiting to lock <76f8d1988> (a org.fusesource.mq.fabric.ActiveMQServiceFactory$ClusteredConfiguration)
    at org.fusesource.mq.fabric.ActiveMQServiceFactory$ClusteredConfiguration$$anon$3.run(ActiveMQServiceFactory.scala:338


"FelixShutdown" prio=5 tid=7fdcfe232000 nid=0x1270a6000 in Object.wait() [1270a3000]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <763d78b28> (a org.fusesource.mq.fabric.ActiveMQServiceFactory$ClusteredConfiguration$$anon$3)
    at java.lang.Thread.join(Thread.java:1225)
    - locked <763d78b28> (a org.fusesource.mq.fabric.ActiveMQServiceFactory$ClusteredConfiguration$$anon$3)
    at java.lang.Thread.join(Thread.java:1278)
    at org.fusesource.mq.fabric.ActiveMQServiceFactory$ClusteredConfiguration.org$fusesource$mq$fabric$ActiveMQServiceFactory$ClusteredConfiguration$$waitForStop(ActiveMQServiceFactory.scala:447)
    at org.fusesource.mq.fabric.ActiveMQServiceFactory$ClusteredConfiguration.updateZooKeeper(ActiveMQServiceFactory.scala:222)
    - locked <76f8d1988> (a org.fusesource.mq.fabric.ActiveMQServiceFactory$ClusteredConfiguration)
    at org.fusesource.mq.fabric.ActiveMQServiceFactory$$anonfun$bindZooKeeper$1.apply(ActiveMQServiceFactory.scala:545)
    at org.fusesource.mq.fabric.ActiveMQServiceFactory$$anonfun$bindZooKeeper$1.apply(ActiveMQServiceFactory.scala:544)
    at scala.collection.mutable.HashMap$$anon$2$$anonfun$foreach$3.apply(HashMap.scala:102)
    at scala.collection.mutable.HashMap$$anon$2$$anonfun$foreach$3.apply(HashMap.scala:102)
    at scala.collection.Iterator$class.foreach(Iterator.scala:660)
    at scala.collection.mutable.HashTable$$anon$1.foreach(HashTable.scala:157)
    at scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:190)
    at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:43)
    at scala.collection.mutable.HashMap$$anon$2.foreach(HashMap.scala:102)
    at org.fusesource.mq.fabric.ActiveMQServiceFactory.bindZooKeeper(ActiveMQServiceFactory.scala:544)
    - locked <76fb31fc8> (a org.fusesource.mq.fabric.ActiveMQServiceFactory)
    at org.fusesource.mq.fabric.ActiveMQServiceFactory.removedService(ActiveMQServiceFactory.scala:536)
    at org.fusesource.mq.fabric.ActiveMQServiceFactory.removedService(ActiveMQServiceFactory.scala:114)
    at org.osgi.util.tracker.ServiceTracker$Tracked.customizerRemoved(ServiceTracker.java:956)
    at org.osgi.util.tracker.ServiceTracker$Tracked.customizerRemoved(ServiceTracker.java:864)
    at org.osgi.util.tracker.AbstractTracked.untrack(AbstractTracked.java:341)
    at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:902)
    at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:934)
    at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:795)
    at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:544)
    at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4596)
    at org.apache.felix.framework.Felix.access$000(Felix.java:89)
    at org.apache.felix.framework.Felix$1.serviceChanged(Felix.java:414)
    at org.apache.felix.framework.ServiceRegistry.unregisterService(ServiceRegistry.java:162)
    at org.apache.felix.framework.ServiceRegistrationImpl.unregister(ServiceRegistrationImpl.java:138)
    at org.fusesource.fabric.zookeeper.internal.OsgiZkClient.close(OsgiZkClient.java:113)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.aries.blueprint.utils.ReflectionUtils.invoke(ReflectionUtils.java:297)
    at org.apache.aries.blueprint.container.BeanRecipe.invoke(BeanRecipe.java:958)
    at org.apache.aries.blueprint.container.BeanRecipe.destroy(BeanRecipe.java:863)
    at org.apache.aries.blueprint.container.BlueprintRepository.destroy(BlueprintRepository.java:320)
    at org.apache.aries.blueprint.container.BlueprintContainerImpl.destroyComponents(BlueprintContainerImpl.java:708)
    at org.apache.aries.blueprint.container.BlueprintContainerImpl.tidyupComponents(BlueprintContainerImpl.java:910)
    at org.apache.aries.blueprint.container.BlueprintContainerImpl.destroy(BlueprintContainerImpl.java:860)
    at org.apache.aries.blueprint.container.BlueprintExtender$3.run(BlueprintExtender.java:295)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at org.apache.aries.blueprint.container.BlueprintExtender.destroyContainer(BlueprintExtender.java:316)
    at org.apache.aries.blueprint.container.BlueprintExtender.stop(BlueprintExtender.java:162)
    at org.apache.aries.blueprint.container.BlueprintExtender.modifiedBundle(BlueprintExtender.java:207)
    at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.customizerModified(BundleHookBundleTracker.java:500)
    at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.customizerModified(BundleHookBundleTracker.java:433)
    at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$AbstractTracked.track(BundleHookBundleTracker.java:725)
    at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.bundleChanged(BundleHookBundleTracker.java:463)
    at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$BundleEventHook.event(BundleHookBundleTracker.java:422)
    at org.apache.felix.framework.util.SecureAction.invokeBundleEventHook(SecureAction.java:1103)
    at org.apache.felix.framework.util.EventDispatcher.createWhitelistFromHooks(EventDispatcher.java:696)
    at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:484)
    at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4580)
    at org.apache.felix.framework.Felix.stopBundle(Felix.java:2695)
    at org.apache.felix.framework.Felix$2.run(Felix.java:977)
    at java.lang.Thread.run(Thread.java:695)

The issue occurs with the default activemq.xml