Uninstalling Java 8 on Ubuntu

Java 8

1. Open a terminal.

2. Execute the following commands:

   sudo update-alternatives --remove "java" "/usr/lib/jvm/jdk1.8.0/bin/java"
   sudo update-alternatives --remove "javac" "/usr/lib/jvm/jdk1.8.0/bin/javac"    
   sudo update-alternatives --remove "javaws" "/usr/lib/jvm/jdk1.8.0/bin/javaws"
   sudo rm -r /usr/lib/jvm/jdk1.8.0
   

   Note:

   Replace "jdk1.8.0" in each of the above commands with the path to the jdk on your server.

Amazon Corretto (OpenJDK) 8:

See the following documentation from Amazon for instructions:

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

OpenJDK 8:

1. Open a terminal.

2. Execute the following command:

   sudo apt remove openjdk-8-jdk