nostr:npub1q5l4y898qvhzghc665jrqj6kcw4p89gha56azkt7j0jm9299wzcqt7ywp3 sometimes you only need the runtime (JRE), and not the development kit. If you know an app was built with one version of the JDK, then you have to use that same version of the JRE. Most of the time Java is backwards compatible, but it is best to use the same version of the runtime the development kit was used.