at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1041)
at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:300)
at org.opendaylight.protocol.pcep.impl.AbstractSessionNegotiator.sendMessage(AbstractSessionNegotiator.java:50)
at org.opendaylight.protocol.pcep.impl.AbstractPCEPSessionNegotiator.handleMessageOpenWait(AbstractPCEPSessionNegotiator.java:259)
at org.opendaylight.protocol.pcep.impl.AbstractPCEPSessionNegotiator.handleMessage(AbstractPCEPSessionNegotiator.java:340)
at org.opendaylight.protocol.pcep.impl.AbstractSessionNegotiator.channelRead(AbstractSessionNegotiator.java:79)