I would want to say: you can use also Azul Zulu Build of OpenJDK while it costs no license fee later. While Java SE from Oracle is free for development there is a license fee for production. With Azul OpenJDK 16 you can run also this project without problems. JDK builds for Production don’t have to be the same as for Development. Means: you can use Oracle for Development and OPENJDK for production and Vice versa. While I really like the Support of Azul I use always Azul Openjdk.