Minecraft is giving me this same dumb issue. It keeps saying Java has been installed correctly, but won't run the program.
Failed to download the file.URL: https://launchermeta.mojang.com/v1/products/java-runtime/2ec0cc96c44e5a76b9c8b7c39df7210883d12871/all.jsonError details: Couldn't download manifest of Java runtime versions.