NOTE – starting from macOS 10.15 Catalina, all apps need to be 64-bit. This means any Java that is 32-bit (including legacy Apple Java 6) will no longer be supported, thus unable to run our inTennis & ClassMaestro. To resolve this, install 64-bit Java from OpenJDK
https://adoptopenjdk.net/?variant=openjdk8&jvmVariant=hotspot