Running multiple Java versions with jenv

jenv.sh

# Requirement: brew

## Install jenv
brew install jenv
jenv versions

## MacOS
brew install openjdk@23
brew install openjdk@11
ls -l /opt/homebrew/opt/openjdk*
sudo ln -sfn /opt/homebrew/opt/openjdk@23/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk-23.jdk
sudo ln -sfn /opt/homebrew/opt/openjdk@11/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk-11.jdk
jenv add /Library/Java/JavaVirtualMachines/openjdk-23.jdk/Contents/Home/
jenv add /Library/Java/JavaVirtualMachines/openjdk-11.jdk/Contents/Home/
jenv versions

## Linux
sudo apt install openjdk-17-jdk-headless openjdk-21-jdk-headless
jenv add /usr/lib/jvm/java-1.17.0-openjdk-amd64
jenv add /usr/lib/jvm/java-1.21.0-openjdk-amd64

## Set the version
jenv local 23
java --version
echo ".java-version" >> .gitignore