12:42:53,605 AM [testsystem-akka.actor.default-dispatcher-6] [INFO] RepointableActorRef -  akkaDeadLetter Message [java.lang.String] from Actor[akka://testsystem/system/testActor-30#-1469821770] to Actor[akka://testsystem/user/pingpongactor#612100504] was not delivered. [1] dead letters encountered. If this is not an expected behavior then Actor[akka://testsystem/user/pingpongactor#612100504] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.
12:42:53,640 AM [main] [ERROR] MessageTrackerTest - An error occurred : 
> Last Expected Message = org.opendaylight.controller.cluster.common.actor.MessageTrackerTest$Foo@6f014f27
> Current Expected Message = org.opendaylight.controller.cluster.common.actor.MessageTrackerTest$Foo@185b998d
> Expected time in between messages = 10
> Actual time in between messages = 20
	> MessageProcessingTime [messageClass=class java.lang.String, elapsedTimeInMillis=0]
	> MessageProcessingTime [messageClass=class java.lang.Long, elapsedTimeInMillis=0]
	> MessageProcessingTime [messageClass=class java.lang.Integer, elapsedTimeInMillis=20]
12:42:53,647 AM [main] [ERROR] MessageTrackerTest - An error occurred : 
> Last Expected Message = null
> Current Expected Message = org.opendaylight.controller.cluster.common.actor.MessageTrackerTest$Foo@47c8c176
> Expected time in between messages = 10
> Actual time in between messages = 20