2017-11-27 06:00:20,022 | ERROR | on-dispatcher-45 | DataTreeChangeListenerActor | 206 - org.opendaylight.controller.sal-clustering-commons - 1.6.1 | member-1-shard-default-config: Error notifying listener org.opendaylight.lispflowmapping.implementation.mdsal.MappingDataListener@4f5ae77a java.lang.NullPointerException at org.opendaylight.lispflowmapping.implementation.MappingSystem.removeMapping(MappingSystem.java:506)[227:org.opendaylight.lispflowmapping.mappingservice.implementation:1.6.1] at org.opendaylight.lispflowmapping.implementation.mdsal.MappingDataListener.onDataTreeChanged(MappingDataListener.java:94)[227:org.opendaylight.lispflowmapping.mappingservice.implementation:1.6.1] at org.opendaylight.controller.md.sal.binding.impl.BindingDOMDataTreeChangeListenerAdapter.onDataTreeChanged(BindingDOMDataTreeChangeListenerAdapter.java:41)[200:org.opendaylight.controller.sal-binding-broker-impl:1.6.1] at org.opendaylight.controller.cluster.datastore.DataTreeChangeListenerActor.dataChanged(DataTreeChangeListenerActor.java:67)[213:org.opendaylight.controller.sal-distributed-datastore:1.6.1] at org.opendaylight.controller.cluster.datastore.DataTreeChangeListenerActor.handleReceive(DataTreeChangeListenerActor.java:41)[213:org.opendaylight.controller.sal-distributed-datastore:1.6.1] at org.opendaylight.controller.cluster.common.actor.AbstractUntypedActor.onReceive(AbstractUntypedActor.java:38)[206:org.opendaylight.controller.sal-clustering-commons:1.6.1] at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:165)[34:com.typesafe.akka.actor:2.4.18] at akka.actor.Actor$class.aroundReceive(Actor.scala:502)[34:com.typesafe.akka.actor:2.4.18] at akka.actor.UntypedActor.aroundReceive(UntypedActor.scala:95)[34:com.typesafe.akka.actor:2.4.18] at akka.actor.ActorCell.receiveMessage(ActorCell.scala:526)[34:com.typesafe.akka.actor:2.4.18] at akka.actor.ActorCell.invoke(ActorCell.scala:495)[34:com.typesafe.akka.actor:2.4.18] at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257)[34:com.typesafe.akka.actor:2.4.18] at akka.dispatch.Mailbox.run(Mailbox.scala:224)[34:com.typesafe.akka.actor:2.4.18] at akka.dispatch.Mailbox.exec(Mailbox.scala:234)[34:com.typesafe.akka.actor:2.4.18] at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)[326:org.scala-lang.scala-library:2.11.11.v20170413-090219-8a413ba7cc] at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)[326:org.scala-lang.scala-library:2.11.11.v20170413-090219-8a413ba7cc] at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)[326:org.scala-lang.scala-library:2.11.11.v20170413-090219-8a413ba7cc]