So the same limitation probably also applies to the Oracle JDK, right? If it could go to Third Party it would be awesome, if not than it's really unfortunate news for me, because I'm doing Android development and Android Studio on OpenJDK sucks ass hardcore.
On Ubuntu I've always added a ppa to my system that auto downloads and installs Java 8. If you extract the .deb file all it is, is a set of bash scripts that have you accept the license and then creates the directors needed and downaloads java and extracts it. The Scripts would need to be modified for Solus. Hope this helps with packaging java in the third party repo.
page to download deb
Direct Link to deb
That's not a supported convention in Solus. Package installation *must* be non-interactive, so license acceptance through this method isn't permitted. Also we don't allow packages to do these things in a postinstall, its a huge hack.