Desirable properties of an API:

  - Ability to swap out standard implementations
    - Testing
    - Replace the platform implementation with a more up-to-date version at
       application runtime / outside of platform updates (e.g. for security in a
       managed environment, or for an application’s custom needs, e.g. banking
       app)
    - Proves that the API actually provides a meaningful abstraction that people
       can reason about.

  - Ease of use & Extensibility (High versatility at a low complexity cost)

  - Clear goal (HTTP1,2 specific? QUIC?)

This issue has been filed to capture comments raised by tobiast at google dot com, see
http://mail.openjdk.java.net/pipermail/net-dev/2017-July/010872.html