Oracle has a long history of suing customers etc. It's a pretty litigious company. It also tends to include nuanced details in their license agreements e.g. https://www.linkedin.com/pulse/oracle-java-release-17-now-fr...

I'm not anti-Oracle. I worked there (worked at Sun which was acquired), so I understand the mentality. I use GraalVM and it's pretty nice. But whenever I pick an Oracle product I always make sure I can dump it in a second if they decide they want to monetize me aggressively.