2016-01-04 12:46:05,401 | INFO | oupCloseable-2-2 | BGPSessionImpl | 254 - org.opendaylight.bgpcep.bgp-rib-impl - 0.5.0.SNAPSHOT | Failed to send message Update [_attributes=Attributes [_asPath=AsPath{augmentations={}}, _clusterId=ClusterId{getCluster=[Ipv4Address [_value=40.40.40.40]], augmentations={}}, _localPref=LocalPref{getPref=100, augmentations={}}, _multiExitDisc=MultiExitDisc{getMed=0, augmentations={}}, _origin=Origin{getValue=Igp, augmentations={}}, _originatorId=OriginatorId{getOriginator=Ipv4Address [_value=41.41.41.42], augmentations={}}, augmentation=[Attributes1 [_mpReachNlri=MpReachNlri [_advertizedRoutes=AdvertizedRoutes [_destinationType=DestinationIpv4Case [_destinationIpv4=DestinationIpv4 [_ipv4Prefixes=[Ipv4Prefixes [_prefix=Ipv4Prefix [_value=200.20.160.42/32], augmentation=[]]], augmentation=[]], augmentation=[]], augmentation=[]], _afi=class org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv4AddressFamily, _cNextHop=Ipv4NextHopCase{getIpv4NextHop=Ipv4NextHop{getGlobal=Ipv4Address [_value=199.20.160.42], augmentations={}}, augmentations={}}, _safi=class org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.UnicastSubsequentAddressFamily, augmentation=[]]]]], augmentation=[]] to socket java.nio.channels.ClosedChannelException

Once session is closed. Listener needs to be removed.