In jenkinsci/jenkins #3998, the most of 'JNLP' terminology in GUI was deleted. However, slave-agent.jnlp and -jnlpUrl argument are still there.

Based on the above, I have some questions below about future migration.

• If Java 8 support is dropped, Java Web Start will become completely unavailable.
  Then, will these 'JNLP' usage be replaced with another terminology (e.g. *.json and -jsonUrl)?
• For inbount agents, which options are considered as desirable?
  • Agent JAR path (slave.jar, agent.jar, or remoting.jar)
  • WebSocket or TCP
  • Commandline arguments