NullPointerException in MultipartReplyTranslator

Here's the trace:

2014-07-03 15:24:47.483 PDT [OFmsgFinisher-0] WARN o.o.o.o.md.queue.TicketFinisherImpl - processing (translate, publish) of ticket failed
java.util.concurrent.ExecutionException: java.lang.NullPointerException
at com.google.common.util.concurrent.AbstractFuture$Sync.getValue(AbstractFuture.java:306) ~[na:na]
at com.google.common.util.concurrent.AbstractFuture$Sync.get(AbstractFuture.java:293) ~[na:na]
at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:116) ~

[na:na]
at org.opendaylight.openflowplugin.openflow.md.queue.TicketFinisherImpl.run(TicketFinisherImpl.java:49) ~[na:na]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_55]
at java.lang.Thread.run(Thread.java:744) [na:1.7.0_55]
Caused by: java.lang.NullPointerException: null
at org.opendaylight.yang.gen.v1.urn.opendaylight.model.statistics.types.rev130925.duration.DurationBuilder.setSecond(DurationBuilder.java:74) ~[na:na]
at org.opendaylight.openflowplugin.openflow.md.core.translator.MultipartReplyTranslator.translate(MultipartReplyTranslator.java:190) ~[na:na]
at org.opendaylight.openflowplugin.openflow.md.core.translator.MultipartReplyTranslator.translate(MultipartReplyTranslator.java:106) ~[na:na]
at org.opendaylight.openflowplugin.openflow.md.queue.TicketProcessorFactoryImpl.translate(TicketProcessorFactoryImpl.java:165) ~[na:na]
at org.opendaylight.openflowplugin.openflow.md.queue.TicketProcessorFactoryImpl$1.run(TicketProcessorFactoryImpl.java:77) ~[na:na]
... 3 common frames omitted