I have a netty 4 http server Implemented.
public void start() { System.out.println(\"In Start method\"); try { ServerBootstrap b = new ServerBoot
I don't see any leaks in your code so it makes sense that there is no leak reported. Just replace SimpleChannelInboundHandler with ChannelInboundHandlerAdaptor or call request.retain() in your channelRead0(...) method and you will see a report.
SimpleChannelInboundHandler
ChannelInboundHandlerAdaptor
request.retain()
channelRead0(...)