doReturn(channelFuture).when(netconfSession).sendMessage(any(NetconfMessage.class));
doReturn(channelFuture).when(channelFuture).addListener(any(GenericFutureListener.class));
doReturn(channelFuture).when(channel).writeAndFlush(any(NetconfMessage.class));
doReturn(channelFuture).when(netconfSession).sendMessage(any(NetconfMessage.class));
doReturn(channelFuture).when(channelFuture).addListener(any(GenericFutureListener.class));
doReturn(channelFuture).when(channel).writeAndFlush(any(NetconfMessage.class));