You can switch between versions with sudo

from https://tecadmin.net/install-java-on-amazon-linux/

 

Step 1 – Install Java on Amazon Linux

The OpenJDK 8 is available under default yum repositories and OpenJDK 11 is available under Amazon Linux 2 extras repositories. You can simply install Java 11 or Java 8 on the Amazon Linux system using the following commands.

  • Run below commands to install Java 11 on Amazon Linux: 
    sudo amazon-linux-extras install java-openjdk11
  • Run below commands to install Java 8 on Amazon Linux: 
    sudo yum install java-1.8.0-openjdk

Step 2 – Check Active Java Version

After successfully installing Java on Amazon Linux using the above steps, Let’s verify the installed version using the following command.

java -version

openjdk version "1.8.0_222"
OpenJDK Runtime Environment (build 1.8.0_222-8u222-b10-1ubuntu1~18.04.1-b10)
OpenJDK 64-Bit Server VM (build 25.222-b10, mixed mode)

Step 3 – Switch Java Version

Use alternatives command-line utility to switch active Java version on your Amazon Linux system. Run below command from the command line and select the appropriate Java version to make it default.

sudo alternatives --config java

Install Java on Amazon Linux

After switching let’s check again active Java version:

java -version

openjdk version "11.0.7" 2020-04-14 LTS
OpenJDK Runtime Environment 18.9 (build 11.0.7+10-LTS)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.7+10-LTS, mixed mode, sharing)

 

 

 

March 9, 2021