Exception in TopologyAdapter preventing population of topology

2014-01-18 17:30:42.478 UTC [md-sal-binding-commit-10] ERROR o.o.c.s.c.t.TopologyCommitHandler - Exception caught
java.lang.NullPointerException: null
at org.opendaylight.controller.sal.compatibility.NodeMapping.toADNodeConnectorProperties(NodeMapping.java:289) ~[na:na]
at org.opendaylight.controller.sal.compatibility.topology.TopologyMapping.toAdEdgeProperties(TopologyMapping.java:89) ~[na:na]
at org.opendaylight.controller.sal.compatibility.topology.TopologyMapping.toTopoEdgeUpdate(TopologyMapping.java:79) ~[na:na]
at org.opendaylight.controller.sal.compatibility.topology.TopologyCommitHandler$3.apply(TopologyCommitHandler.java:96) ~[na:na]
at org.opendaylight.controller.sal.compatibility.topology.TopologyCommitHandler$3.apply(TopologyCommitHandler.java:92) ~[na:na]
at com.google.common.collect.Iterators$8.transform(Iterators.java:860) ~[na:na]
at com.google.common.collect.TransformedIterator.next(TransformedIterator.java:48) ~[na:na]
at com.google.common.collect.ImmutableList.copyOf(ImmutableList.java:266) ~[na:na]
at com.google.common.collect.ImmutableList.copyOf(ImmutableList.java:223) ~[na:na]
at com.google.common.collect.FluentIterable.toList(FluentIterable.java:328) ~[na:na]
at org.opendaylight.controller.sal.compatibility.topology.TopologyCommitHandler.requestCommit(TopologyCommitHandler.java:101) ~[na:na]
at org.opendaylight.controller.md.sal.common.impl.service.TwoPhaseCommit.call(TwoPhaseCommit.java:76) ~[na:na]
at org.opendaylight.controller.md.sal.common.impl.service.TwoPhaseCommit.call(TwoPhaseCommit.java:31) ~[na:na]
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) ~[na:1.7.0_25]
at java.util.concurrent.FutureTask.run(FutureTask.java:166) ~[na:1.7.0_25]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) ~[na:1.7.0_25]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) ~[na:1.7.0_25]
at java.lang.Thread.run(Thread.java:724) ~[na:1.7.0_25]