I've run into the following ConcurrentModificationException from controller.blueprint during orderly system shutdown of the new extended SingleFeatureTest (TestBundleDiag) in https://git.opendaylight.org/gerrit/#/c/48901/ :

NOK org.opendaylight.sfc.lisp: OSGi state = 32, Karaf bundleState = Failure, due to: Blueprint
8/12/16 12:04 PM
Exception:
null
java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
at java.util.ArrayList$Itr.next(ArrayList.java:851)
at org.opendaylight.controller.blueprint.ext.AbstractDependentComponentFactoryMetadata.stopServiceRecipes(AbstractDependentComponentFactoryMetadata.java:192)
at org.opendaylight.controller.blueprint.ext.AbstractDependentComponentFactoryMetadata.stopTracking(AbstractDependentComponentFactoryMetadata.java:181)
at org.opendaylight.controller.blueprint.ext.RpcServiceMetadata.stopTracking(RpcServiceMetadata.java:153)
at org.apache.aries.blueprint.di.DependentComponentFactoryRecipe.stop(DependentComponentFactoryRecipe.java:62)
at org.apache.aries.blueprint.container.BlueprintContainerImpl.untrackServiceReference(BlueprintContainerImpl.java:669)
at org.apache.aries.blueprint.container.BlueprintContainerImpl.untrackServiceReferences(BlueprintContainerImpl.java:649)
at org.apache.aries.blueprint.container.BlueprintContainerImpl.processProcessors(BlueprintContainerImpl.java:578)
at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:395)
at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:276)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.apache.aries.blueprint.container.ExecutorServiceWrapper.run(ExecutorServiceWrapper.java:106)
at org.apache.aries.blueprint.utils.threading.impl.DiscardableRunnable.run(DiscardableRunnable.java:48)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)