Java 9 is already no longer supported. If you haven't moved yet go directly to 11. As after 11 there are no features in OracleJDK that are not in OpenJDK I wou

Java 9 is already no longer supported. If you haven't moved yet go directly to 11. As after 11 there are no features in OracleJDK that are not in OpenJDK I would think moving to the vendor supported (Open)JDK on your linux system is the smart default thing to do.