[Wyoming23]

They're incredibly innovative in the intellectual property space. Their lawyers have successfully sued an incredibly diverse range of people using a wide range of unique and esoteric arguments.

Even when they're not successful in court, they're still generally successful in a business sense by forcing smaller companies into bankruptcy, takeover or into accepting licensing on terms favorable to Oracle.

They're doing lots of "cool" things, it's just all evil corporate legal things. They don't do anything "cool" in terms of developing technology.

[Bootvis]

Graal VM is cool:

https://www.graalvm.org/

[chris_wot]

Do you need an Oracle license to use it commercially?

[jsty]

No - GPLv2

https://github.com/oracle/graal#license