InterruptedException seen in SouthboundHandler in ovsdb.neutron

2014-01-10 20:29:33.117 PST [pool-18-thread-1] INFO o.o.ovsdb.neutron.SouthboundHandler - The event handler thread was interrupted, shutting down
java.lang.InterruptedException: null
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.reportInterruptAfterWait(AbstractQueuedSynchronizer.java:2017) ~[na:1.7.0_40]
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2052) ~[na:1.7.0_40]
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442) ~[na:1.7.0_40]
at org.opendaylight.ovsdb.neutron.SouthboundHandler$1.run(SouthboundHandler.java:53) ~[na:na]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [na:1.7.0_40]
at java.util.concurrent.FutureTask.run(FutureTask.java:262) [na:1.7.0_40]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_40]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_40]
at java.lang.Thread.run(Thread.java:724) [na:1.7.0_40]