Exception during handshake

I am seeing the following exception during handshake at the OSGI console:

2013-12-17 17:43:24.787 UTC [nioEventLoopGroup-7-1] INFO o.o.o.p.i.c.DelegatingInboundHandler - Channel inactive
2013-12-17 17:43:24.791 UTC [nioEventLoopGroup-7-1] WARN o.o.o.o.m.c.s.SessionManagerOFImpl - context for invalidation not found
2013-12-17 17:43:24.792 UTC [nioEventLoopGroup-7-1] WARN o.o.o.p.i.c.ConnectionAdapterImpl - rpc response discarded: RpcResultKey [xid=98, outputClazz=org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetFeaturesOutput]
2013-12-17 17:43:24.792 UTC [nioEventLoopGroup-7-1] INFO o.o.o.p.i.c.DelegatingInboundHandler - Channel unregistered
2013-12-17 17:43:24.793 UTC [pool-102-thread-1] ERROR o.o.o.o.md.core.HandshakeManagerImpl - issuing disconnect during handshake, reason: Task was cancelled.
2013-12-17 17:43:24.801 UTC [Thread-14] ERROR o.o.o.o.m.core.ErrorHandlerQueueImpl - IN THREAD: pool-102-thread-1; session:null -> Task was cancelled.
java.util.concurrent.CancellationException: Task was cancelled.
at com.google.common.util.concurrent.AbstractFuture.cancellationExceptionWithCause(AbstractFuture.java:399) ~[na:na]
at com.google.common.util.concurrent.AbstractFuture$Sync.getValue(AbstractFuture.java:313) ~[na:na]
at com.google.common.util.concurrent.AbstractFuture$Sync.get(AbstractFuture.java:279) ~[na:na]
at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:96) ~[na:na]
at org.opendaylight.openflowplugin.openflow.md.core.HandshakeManagerImpl.postHandshake(HandshakeManagerImpl.java:290) ~[na:na]
at org.opendaylight.openflowplugin.openflow.md.core.HandshakeManagerImpl.handleVersionBitmapNegotiation(HandshakeManagerImpl.java:161) ~[na:na]
at org.opendaylight.openflowplugin.openflow.md.core.HandshakeManagerImpl.shake(HandshakeManagerImpl.java:100) ~[na:na]
at org.opendaylight.openflowplugin.openflow.md.core.HandshakeStepWrapper.run(HandshakeStepWrapper.java:47) ~[na:na]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) ~[na:1.7.0_25]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) ~[na:1.7.0_25]
at java.lang.Thread.run(Thread.java:724) ~[na:1.7.0_25]
Caused by: java.util.concurrent.CancellationException: Future.cancel() was called.
at com.google.common.util.concurrent.AbstractFuture$Sync.complete(AbstractFuture.java:385) ~[na:na]
at com.google.common.util.concurrent.AbstractFuture$Sync.cancel(AbstractFuture.java:362) ~[na:na]
at com.google.common.util.concurrent.AbstractFuture.cancel(AbstractFuture.java:131) ~[na:na]
at org.opendaylight.openflowjava.protocol.impl.connection.ConnectionAdapterImpl$ResponseRemovalListener.onRemoval(ConnectionAdapterImpl.java:539) ~[na:na]
at com.google.common.cache.LocalCache.processPendingNotifications(LocalCache.java:2016) ~[na:na]
at com.google.common.cache.LocalCache$Segment.runUnlockedCleanup(LocalCache.java:3521) ~[na:na]
at com.google.common.cache.LocalCache$Segment.postWriteCleanup(LocalCache.java:3497) ~[na:na]
at com.google.common.cache.LocalCache$Segment.clear(LocalCache.java:3302) ~[na:na]
at com.google.common.cache.LocalCache.clear(LocalCache.java:4270) ~[na:na]
at com.google.common.cache.LocalCache$LocalManualCache.invalidateAll(LocalCache.java:4825) ~[na:na]
at org.opendaylight.openflowjava.protocol.impl.connection.ConnectionAdapterImpl.consume(ConnectionAdapterImpl.java:260) ~[na:na]
at org.opendaylight.openflowjava.protocol.impl.core.DelegatingInboundHandler.channelInactive(DelegatingInboundHandler.java:55) ~[na:na]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelInactive(DefaultChannelHandlerContext.java:237) ~[na:na]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelInactive(DefaultChannelHandlerContext.java:223) ~[na:na]
at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:75) ~[na:na]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelInactive(DefaultChannelHandlerContext.java:237) ~[na:na]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelInactive(DefaultChannelHandlerContext.java:223) ~[na:na]
at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:214) ~[na:na]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelInactive(DefaultChannelHandlerContext.java:237) ~[na:na]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelInactive(DefaultChannelHandlerContext.java:223) ~[na:na]
at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:214) ~[na:na]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelInactive(DefaultChannelHandlerContext.java:237) ~[na:na]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelInactive(DefaultChannelHandlerContext.java:223) ~[na:na]
at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:75) ~[na:na]
at io.netty.handler.timeout.IdleStateHandler.channelInactive(IdleStateHandler.java:246) ~[na:na]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelInactive(DefaultChannelHandlerContext.java:237) ~[na:na]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelInactive(DefaultChannelHandlerContext.java:223) ~[na:na]
at io.netty.channel.DefaultChannelPipeline.fireChannelInactive(DefaultChannelPipeline.java:767) ~[na:na]
at io.netty.channel.AbstractChannel$AbstractUnsafe$5.run(AbstractChannel.java:558) ~[na:na]
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:354) ~[na:na]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:348) ~[na:na]
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101) ~[na:na]