Fail to find codec for type ...)leafref

2014-09-10 09:19:58.380 CEST [http-bio-8080-exec-2] ERROR o.o.y.y.d.i.codec.xml.XmlStreamUtils - Failed to find codec for type (urn:ietf:params:xml:ns:yang:1)leafref [xpath=/config:services/config:service[config:type=current()/../type]/config:instance/config:name], falling back to using stream

When executing get/get-config on a loopback netconf mountpoint via RESTCONF, this error is logged for leafrefs.

http://localhost:8080/restconf/operational/opendaylight-inventory:nodes/node/controller-config/yang-ext:mount