How to use early jdk with archlinux-java?

I'm using archlinux-java set java-xx-openjdk to switch between regularly installed jdk versions, and that works, but I want to use the latest or the early version from https://jdk.java.net/ that I have installed manually in /opt (for example) I'm unable to switch to /opt/jdk-19 java version, I also tried to create a symlink in /usr/lib/jvm/ beside the other versions, but it's not detected. - how does archlinux-java status work? Could I register custom jdk? - how could I package it if I want to create a regular installation?