Due to recent Oracle Java SE Support Roadmap policy update (end of $free release updates from Oracle after March 2019 in particular), I’ve been searching for alternatives to Oracle Java. I’ve found that OpenJDK is an open-source alternative. And I’ve found AdoptOpenJDK, now known as Adoptium, which is a prebuilt binary. It puzzles.
What is the difference between OpenJDK and Adoptium/AdoptOpenJDK?