When running devstack, saw the following exception:
2015-06-16 06:46:19,159 | ERROR | lt-dispatcher-23 | DataChangeListener | 179 - org.opendaylight.controller.sal-distributed-datastore - 1.2.0.SNAPSHOT | Error notifying listener org.opendaylight.groupbasedpolicy.neutron.ovsdb.TerminationPointDataChangeListener
java.lang.IllegalArgumentException: All keys must be specified for class org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.nodes.node.TunnelKey. Missing key is getTunnelType. Supplied key is TunnelKey []
at com.google.common.base.Preconditions.checkArgument(Preconditions.java:145)[61:com.google.guava:18.0.0]
at org.opendaylight.yangtools.binding.data.codec.impl.ValueContext.getAndSerialize(ValueContext.java:46)[106:org.opendaylight.yangtools.binding-data-codec:0.7.0.SNAPSHOT]
at org.opendaylight.yangtools.binding.data.codec.impl.IdentifiableItemCodec.serialize(IdentifiableItemCodec.java:124)[106:org.opendaylight.yangtools.binding-data-codec:0.7.0.SNAPSHOT]
at org.opendaylight.yangtools.binding.data.codec.impl.IdentifiableItemCodec.serialize(IdentifiableItemCodec.java:31)[106:org.opendaylight.yangtools.binding-data-codec:0.7.0.SNAPSHOT]
at org.opendaylight.yangtools.binding.data.codec.impl.KeyedListNodeCodecContext.serialize(KeyedListNodeCodecContext.java:80)[106:org.opendaylight.yangtools.binding-data-codec:0.7.0.SNAPSHOT]
at org.opendaylight.yangtools.binding.data.codec.impl.BindingToNormalizedStreamWriter.startMapEntryNode(BindingToNormalizedStreamWriter.java:156)[106:org.opendaylight.yangtools.binding-data-codec:0.7.0.SNAPSHOT]
at org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.nodes.node.Tunnel$StreamWriter.serialize(DataObjectSerializerPrototype.java)[313:org.opendaylight.groupbasedpolicy.ofoverlay-renderer:0.2.0.SNAPSHOT]
at org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.OfOverlayNodeConfig$StreamWriter.serialize(DataObjectSerializerPrototype.java)[313:org.opendaylight.groupbasedpolicy.ofoverlay-renderer:0.2.0.SNAPSHOT]
at org.opendaylight.yangtools.binding.data.codec.impl.BindingNormalizedNodeCodecRegistry$DataObjectSerializerProxy.serialize(BindingNormalizedNodeCodecRegistry.java:295)[106:org.opendaylight.yangtools.binding-data-codec:0.7.0.SNAPSHOT]
at org.opendaylight.yangtools.binding.data.codec.impl.BindingNormalizedNodeCodecRegistry.toNormalizedNode(BindingNormalizedNodeCodecRegistry.java:106)[106:org.opendaylight.yangtools.binding-data-codec:0.7.0.SNAPSHOT]
at org.opendaylight.controller.md.sal.binding.impl.BindingToNormalizedNodeCodec.toNormalizedNode(BindingToNormalizedNodeCodec.java:133)[157:org.opendaylight.controller.sal-binding-broker-impl:1.2.0.SNAPSHOT]
at org.opendaylight.controller.md.sal.binding.impl.AbstractWriteTransaction.put(AbstractWriteTransaction.java:39)[157:org.opendaylight.controller.sal-binding-broker-impl:1.2.0.SNAPSHOT]
at org.opendaylight.groupbasedpolicy.neutron.ovsdb.util.InventoryHelper.addOfOverlayAugmentation(InventoryHelper.java:209)[315:org.opendaylight.groupbasedpolicy.neutron-ovsdb:0.2.0.SNAPSHOT]
at org.opendaylight.groupbasedpolicy.neutron.ovsdb.util.InventoryHelper.updateOfOverlayConfig(InventoryHelper.java:282)[315:org.opendaylight.groupbasedpolicy.neutron-ovsdb:0.2.0.SNAPSHOT]
at org.opendaylight.groupbasedpolicy.neutron.ovsdb.TerminationPointDataChangeListener.processOvsdbBridge(TerminationPointDataChangeListener.java:237)[315:org.opendaylight.groupbasedpolicy.neutron-ovsdb:0.2.0.SNAPSHOT]
at org.opendaylight.groupbasedpolicy.neutron.ovsdb.TerminationPointDataChangeListener.onDataChanged(TerminationPointDataChangeListener.java:122)[315:org.opendaylight.groupbasedpolicy.neutron-ovsdb:0.2.0.SNAPSHOT]
at org.opendaylight.controller.md.sal.binding.impl.AbstractForwardedDataBroker$TranslatingDataChangeInvoker.onDataChanged(AbstractForwardedDataBroker.java:134)[157:org.opendaylight.controller.sal-binding-broker-impl:1.2.0.SNAPSHOT]
at org.opendaylight.controller.cluster.datastore.DataChangeListener.dataChanged(DataChangeListener.java:66)[179:org.opendaylight.controller.sal-distributed-datastore:1.2.0.SNAPSHOT]
at org.opendaylight.controller.cluster.datastore.DataChangeListener.handleReceive(DataChangeListener.java:39)[179:org.opendaylight.controller.sal-distributed-datastore:1.2.0.SNAPSHOT]
at org.opendaylight.controller.cluster.common.actor.AbstractUntypedActor.onReceive(AbstractUntypedActor.java:34)[171:org.opendaylight.controller.sal-clustering-commons:1.2.0.SNAPSHOT]
at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:167)[164:com.typesafe.akka.actor:2.3.10]
at akka.actor.Actor$class.aroundReceive(Actor.scala:467)[164:com.typesafe.akka.actor:2.3.10]
at akka.actor.UntypedActor.aroundReceive(UntypedActor.scala:97)[164:com.typesafe.akka.actor:2.3.10]
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)[164:com.typesafe.akka.actor:2.3.10]
at akka.actor.ActorCell.invoke(ActorCell.scala:487)[164:com.typesafe.akka.actor:2.3.10]
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:254)[164:com.typesafe.akka.actor:2.3.10]
at akka.dispatch.Mailbox.run(Mailbox.scala:221)[164:com.typesafe.akka.actor:2.3.10]
at akka.dispatch.Mailbox.exec(Mailbox.scala:231)[164:com.typesafe.akka.actor:2.3.10]
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)[161:org.scala-lang.scala-library:2.10.4.v20140209-180020-VFINAL-b66a39653b]
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.pollAndExecAll(ForkJoinPool.java:1253)[161:org.scala-lang.scala-library:2.10.4.v20140209-180020-VFINAL-b66a39653b]
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1346)[161:org.scala-lang.scala-library:2.10.4.v20140209-180020-VFINAL-b66a39653b]
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)[161:org.scala-lang.scala-library:2.10.4.v20140209-180020-VFINAL-b66a39653b]
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)[161:org.scala-lang.scala-library:2.10.4.v20140209-180020-VFINAL-b66a39653b]