Selecting An (Open)Jdk To Install

Using advice, use Adoptium Eclipse Temurin 17.0.3 or higher

winget install EclipseAdoptium.Temurin.17.JDK

To run jnlp files

Requires javaws.exe, which is Java Web Start, it was deprecated in Java 9 and removed in Java 11.
Download it here:

winget install karakun.OpenWebStart

This will install a program that will auto install the required files to run the jnlp file.