1. 2.56 1. Create NioEventLoopGrouphistorical

    NioEventLoopGroup class hierarchy, constructor chain, initialization of selector/select strategy/rejection policy, EventLoop count, executor, child EventLoops, and chooser.

  2. Create Executorhistorical

    1. Code to analyze 2. Create the thread factory 3. Create the executor

  3. Create the NioEventLoop Arrayhistorical

    1. Code to analyze 2. Parameters passed to NioEventLoop 3. NioEventLoop is a single-threaded thread pool 4. Constructor