Create a new NIO1SocketServerGroup from the SelectorLoopPool.
Create a new NIO1SocketServerGroup from the SelectorLoopPool.
The worker pool is not owned by the group and therefore not shutdown when the group is shutdown.
Create a new NIO1SocketServerGroup with a fresh FixedSelectorPool
Create a new NIO1SocketServerGroup with a fresh FixedSelectorPool
The resulting ServerChannelGroup takes ownership of the created pool, shutting it down when the group is shutdown.