Minor Description
I tried to use DefaultSocketSessionConfig to store socket options to be applied to an acceptor that is created at a later stage, and noticed that
a NullPointerException is thrown if setReceiveBufferSize(...) is called before init(IoService parent) is called.
If this is the intended behaviour, it looks like a DefaultSocketSessionConfig is created without init(...) being called in:
NioSocketConnector(Class<? extends IoProcessor<NioSession>> processorClass, int processorCount)