This job hit NEUTRON-157 and a new exception is coming out
from an mdsal change in the api. The job below has an example.
https://logs.opendaylight.org/releng/vex-yul-odl-jenkins-1/netvirt-csit-1node-openstack-queens-gate-stateful-fluorine/281/odl_1/odl1_karaf.log.gz
Change-Id: I7c5a7c6f3dbb8013d217168b09d3ce9a0213978d
Signed-off-by: Sam Hague <shague@redhat.com>