NullPointerException with updatePort

I ran the integration/distribution/base in OSGi mode and copied over the sample/learningswitch jar to the plugins folder. During the run, I saw the following error pop up on the screen once the switch connected.

2014-09-28 21:21:52.527 PDT [nioEventLoopGroup-12-2] INFO o.o.o.p.i.core.TcpChannelInitializer - Incoming connection from (remote address): /127.0.0.1:45246 --> :6633
2014-09-28 21:21:52.527 PDT [nioEventLoopGroup-12-2] INFO o.o.o.p.i.core.TcpChannelInitializer - Incoming connection accepted - building pipeline
2014-09-28 21:21:52.552 PDT [nioEventLoopGroup-12-2] WARN o.o.o.o.m.c.s.SessionManagerOFImpl - context for invalidation not found
2014-09-28 21:21:53.608 PDT [nioEventLoopGroup-12-3] INFO o.o.o.p.i.core.TcpChannelInitializer - Incoming connection from (remote address): /127.0.0.1:45247 --> :6633
2014-09-28 21:21:53.609 PDT [nioEventLoopGroup-12-3] INFO o.o.o.p.i.core.TcpChannelInitializer - Incoming connection accepted - building pipeline
2014-09-28 21:21:53.616 PDT [nioEventLoopGroup-12-3] INFO o.o.o.p.i.c.ConnectionAdapterImpl - Hello received / branch
2014-09-28 21:21:53.629 PDT [nioEventLoopGroup-12-3] WARN i.n.channel.DefaultChannelPipeline - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.
java.lang.NullPointerException: null
at org.opendaylight.openflowplugin.openflow.md.core.ConnectionConductorImpl.updatePort(ConnectionConductorImpl.java:276) ~[na:na]
at org.opendaylight.openflowplugin.openflow.md.core.ConnectionConductorImpl.processPortStatusMsg(ConnectionConductorImpl.java:261) ~[na:na]
at org.opendaylight.openflowplugin.openflow.md.core.ConnectionConductorImpl.onPortStatusMessage(ConnectionConductorImpl.java:255) ~[na:na]
at org.opendaylight.openflowjava.protocol.impl.connection.ConnectionAdapterImpl.consume(ConnectionAdapterImpl.java:298) ~[na:na]
at org.opendaylight.openflowjava.protocol.impl.core.DelegatingInboundHandler.channelReadConnectionConductorImpl(DelegatingInboundHandler.java:46) ~[na:na]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333) [bundlefile:4.0.23.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319) [bundlefile:4.0.23.Final]
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) [bundlefile:4.0.23.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333) [bundlefile:4.0.23.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319) [bundlefile:4.0.23.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:163) [bundlefile:4.0.23.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333) [bundlefile:4.0.23.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319) [bundlefile:4.0.23.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:163) [bundlefile:4.0.23.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333) [bundlefile:4.0.23.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319) [bundlefile:4.0.23.Final]
at io.netty.handler.timeout.ReadTimeoutHandler.channelRead(ReadTimeoutHandler.java:150) [bundlefile:4.0.23.Final]
at org.opendaylight.openflowjava.protocol.impl.core.IdleHandler.channelRead(IdleHandler.java:39) [bundlefile:na]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333) [bundlefile:4.0.23.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319) [bundlefile:4.0.23.Final]
at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86) [bundlefile:4.0.23.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333) [bundlefile:4.0.23.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319) [bundlefile:4.0.23.Final]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:787) [bundlefile:4.0.23.Final]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:130) [bundlefile:4.0.23.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511) [bundlefile:4.0.23.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468) [bundlefile:4.0.23.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382) [bundlefile:4.0.23.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:349) [bundlefile:4.0.23.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116) [bundlefile:4.0.23.Final]
at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137) [bundlefile:4.0.23.Final]
at java.lang.Thread.run(Unknown Source) [na:1.7.0_67]