LispNeutronService give exception: java.lang.NullPointerException

2016-09-06 13:46:18,734 | WARN | tp793464113-7388 | LispNeutronService | 446 - org.opendaylight.lispflowmapping.mappingservice.neutron - 1.3.2.Beryllium-SR2 | Failed to GET mapping for EID Eid [_address=DistinguishedName [_distinguishedName=DistinguishedNameType [_value=itran157], augmentation=[]], _addressType=class org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.DistinguishedNameAfi, augmentation=[]]: , mappingInput: GetMappingInput [_eid=Eid [_address=DistinguishedName [_distinguishedName=DistinguishedNameType [_value=itran157], augmentation=[]], _addressType=class org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.DistinguishedNameAfi, augmentation=[]], augmentation=[]] , Exception: java.lang.NullPointerException
at org.opendaylight.lispflowmapping.neutron.LispNeutronPortHandler.neutronPortCreated(LispNeutronPortHandler.java:86)
at org.opendaylight.neutron.northbound.api.NeutronPortsNorthbound.created(NeutronPortsNorthbound.java:121)
at org.opendaylight.neutron.northbound.api.NeutronPortsNorthbound.created(NeutronPortsNorthbound.java:59)
at org.opendaylight.neutron.northbound.api.AbstractNeutronNorthboundIAware.create(AbstractNeutronNorthboundIAware.java:67)
at org.opendaylight.neutron.northbound.api.NeutronPortsNorthbound.createPorts(NeutronPortsNorthbound.java:249)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)