He's using the slowest and oldest framework on Java which still is preferable to use if you want things easy to read and maintain. But if you're going for ra

He's using the slowest and oldest framework on Java which still is preferable to use if you want things easy to read and maintain. But if you're going for raw I/O performance and already taking the readability and maintenance challenges with the other platforms, then he really should be using Netty, Vert.x or Akka for Java.