N: GET for netconf device mount point responded with 500

tested odl: https://nexus.opendaylight.org/content/repositories/opendaylight.snapshot/org/opendaylight/integration/karaf/0.7.0-SNAPSHOT/karaf-0.7.0-20170731.112540-1487.zip

Readiness suite configures netconf device and access it's mount mount.
https://logs.opendaylight.org/sandbox/jenkins091/netconf-csit-1node-userfeatures-only-nitrogen/3/log.html.gz#s1-s1-s1-t1-k3-k1-k1-k1-k1-k4-k1-k5-k1-k3-k4-k1

The returned exception is caused by java.lang.IllegalArgumentException: Could not find module for namespace urn:opendaylight:params:xml:ns:yang:controller:netty:eventexecutor

Checking the karaf.log there are more exceptions prior to this one.
https://logs.opendaylight.org/sandbox/jenkins091/netconf-csit-1node-userfeatures-only-nitrogen/3/odl1_karaf.log.gz
2017-07-31 15:15:54,459 | INFO | nsole user karaf | core | 173 - org.apache.karaf.log.core - 4.0.9 | ROBOT MESSAGE: Starting test Check_Whether_Netconf_Topology_Is_Ready

Similar results are expected in https://jenkins.opendaylight.org/releng/view/netconf/job/netconf-csit-1node-userfeatures-only-nitrogen/95 (in the queue at the moment of creating this bug)