Java 17 (LTS) has been released. It has a tool called jpackage, for making an installer with custom runtime image that doesn't require users to install JDK.

https://docs.oracle.com/en/java/javase/17/jpackage/packaging-overview.html#GUID-C1027043-587D-418D-8188-EF8F44A4C06A
https://akman.github.io/jpackage-maven-plugin/

This feature seems very useful but it requires developers to prepare every runtime OS environment supported by the app. Since I don't have mac, I can't produce an installer for macOS.