To uninstall Java 8 on macOS, refer to the following instructions for your server's currently installed distribution of Java.

Java 8

See the Uninstalling the JDK 8 section of the following documentation from Oracle for instructions:

https://docs.oracle.com/javase/8/docs/technotes/guides/install/mac_jdk.html

Amazon Corretto (OpenJDK) 8

See the following documentation from Amazon for instructions:

https://docs.aws.amazon.com/corretto/latest/corretto-8-ug/macos-install.html