IllegalArgumentException when configuring Application Peer via restconf

odl: distribution-karaf-0.5.0-20160624.050745-3155.zip

bgp peer and application peer are configured via restconf
then exabgp connects to the odl
then a route is configured via restconf and application peer
but then it is not present in the loc-rib nor the route is advertised via bgp update message towards exabgp

such exaceptoin in the log is present for routes configuration

2016-06-24 07:49:07,076 | ERROR | on-dispatcher-66 | DataTreeChangeListenerActor | 167 - org.opendaylight.controller.sal-distributed-datastore - 1.4.0.SNAPSHOT | Error notifying listener org.opendaylight.protocol.bgp.rib.impl.ApplicationPeer@b7b5586
java.lang.IllegalStateException: New transaction PingPongTransaction

{delegate=org.opendaylight.controller.cluster.databroker.DOMBrokerReadWriteTransaction@6e589994}

raced with transacion PingPongTransaction

{delegate=org.opendaylight.controller.cluster.databroker.DOMBrokerReadWriteTransaction@14cdc83c}

at org.opendaylight.controller.md.sal.dom.broker.impl.PingPongTransactionChain.slowAllocateTransaction(PingPongTransactionChain.java:136)[136:org.opendaylight.controller.sal-broker-impl:1.4.0.SNAPSHOT]
at org.opendaylight.controller.md.sal.dom.broker.impl.PingPongTransactionChain.allocateTransaction(PingPongTransactionChain.java:148)[136:org.opendaylight.controller.sal-broker-impl:1.4.0.SNAPSHOT]
at org.opendaylight.controller.md.sal.dom.broker.impl.PingPongTransactionChain.newReadWriteTransaction(PingPongTransactionChain.java:347)[136:org.opendaylight.controller.sal-broker-impl:1.4.0.SNAPSHOT]
at org.opendaylight.controller.md.sal.dom.broker.impl.PingPongTransactionChain.newWriteOnlyTransaction(PingPongTransactionChain.java:378)[136:org.opendaylight.controller.sal-broker-impl:1.4.0.SNAPSHOT]
at org.opendaylight.protocol.bgp.rib.impl.ApplicationPeer.onDataTreeChanged(ApplicationPeer.java:102)[179:org.opendaylight.bgpcep.bgp-rib-impl:0.6.0.SNAPSHOT]
at org.opendaylight.controller.cluster.datastore.DataTreeChangeListenerActor.dataChanged(DataTreeChangeListenerActor.java:55)[167:org.opendaylight.controller.sal-distributed-datastore:1.4.0.SNAPSHOT]
at org.opendaylight.controller.cluster.datastore.DataTreeChangeListenerActor.handleReceive(DataTreeChangeListenerActor.java:37)[167:org.opendaylight.controller.sal-distributed-datastore:1.4.0.SNAPSHOT]
at org.opendaylight.controller.cluster.common.actor.AbstractUntypedActor.onReceive(AbstractUntypedActor.java:25)[162:org.opendaylight.controller.sal-clustering-commons:1.4.0.SNAPSHOT]
at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:165)[150:com.typesafe.akka.actor:2.4.4]
at akka.actor.Actor$class.aroundReceive(Actor.scala:482)[150:com.typesafe.akka.actor:2.4.4]
at akka.actor.UntypedActor.aroundReceive(UntypedActor.scala:95)[150:com.typesafe.akka.actor:2.4.4]
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:526)[150:com.typesafe.akka.actor:2.4.4]
at akka.actor.ActorCell.invoke(ActorCell.scala:495)[150:com.typesafe.akka.actor:2.4.4]
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257)[150:com.typesafe.akka.actor:2.4.4]
at akka.dispatch.Mailbox.run(Mailbox.scala:224)[150:com.typesafe.akka.actor:2.4.4]
at akka.dispatch.Mailbox.exec(Mailbox.scala:234)[150:com.typesafe.akka.actor:2.4.4]
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)[146:org.scala-lang.scala-library:2.11.8.v20160304-115712-1706a37eb8]
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)[146:org.scala-lang.scala-library:2.11.8.v20160304-115712-1706a37eb8]
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)[146:org.scala-lang.scala-library:2.11.8.v20160304-115712-1706a37eb8]
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)[146:org.scala-lang.scala-library:2.11.8.v20160304-115712-1706a37eb8]