3 ms·

OpenJDK was/is an official Sun (now Oracle) project. But others did reimplement Java without authorization, such as Apache Harmony, and, well, I think you need

by comex 10y ago

OpenJDK was/is an official Sun (now Oracle) project. But others did reimplement Java without authorization, such as Apache Harmony, and, well, I think you need to look up Oracle v. Google.