These are the official upstream builds by the updates project built by Red Hat. Not to be confused by Red Hat Java, not to be confused by the AdoptOpenJDK/Adoptium builds. These can‘t be hosted on openjdk.java.net because they host only builds done by Oracle, not to be confused by Oracle JDK.
https://adoptopenjdk.net/upstream.html
These are the official upstream builds by the updates project built by Red Hat. Not to be confused by Red Hat Java, not to be confused by the AdoptOpenJDK/Adoptium builds. These can‘t be hosted on openjdk.java.net because they host only builds done by Oracle, not to be confused by Oracle JDK.