How to install Java SDK on macOS

How to install Java SDK on macOS using homebrew

  1. Prerequisite install home brew if you haven’t yet installed it

$ xcode-select --install
$ $ curl -fsSL -o install.sh https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh

Add later on to your .bash_profile

eval "$(/opt/homebrew/bin/brew shellenv)"

See more install-homebrew-on-mac [1].

  1. Add the casks tap

$ brew tap homebrew/cask-versions
$ brew tap homebrew/cask

  1. Look for installable versions

$ brew search java
$ brew search temurin

  1. Install a specific version of the JDK such as java11, temurin8, temurin11, temurin17, or just java or temurin for the most current of that distribution. For example:

$ brew install java
$ brew install --cask temurin

$ brew install --cask temurin17
==> Downloading https://github.com/adoptium/temurin17-binaries/releases/download/jdk-17.0.6%2B10/OpenJDK17U-jdk_aarch64_mac_hotspot_17.0.6_10.pk
######################################################################## 100.0%
==> Installing Cask temurin17
==> Running installer for temurin17; your password may be necessary.
Package installers may write to any location; options such as `--appdir` are ignored.
Password:
installer: Package name is Eclipse Temurin
installer: Installing at base path /
installer: The install was successful.
🍺  temurin17 was successfully installed!

And these will be installed into /Library/Java/JavaVirtualMachines/

/usr/libexec/java_home -V
/usr/libexec/java_home -v 8

You should have something like:

Switch Java versions with Jenv

  1. Install Jenv

$ brew install jenv
To activate jenv, add the following to your /Users/jhon.smith/.bash_profile:
export PATH="$HOME/.jenv/bin:$PATH"
eval "$(jenv init -)"

  1. Add java versions to Jenv

$ jenv add /Library/Java/JavaVirtualMachines/zulu-8.jdk/Contents/Home
$ jenv add /Library/Java/JavaVirtualMachines/openjdk-11.jdk/Contents/Home
$ $ jenv versions
 * system (set by /Users/jhon.smith/.jenv/version)
 1.8
 1.8.0.312
 11.0
 11.0.16.1
 17.0
 17.0.6
 openjdk64-11.0.16.1
 zulu64-1.8.0.312

You can set the default jvm with the command:

$ jenv global 1.8

To make sure JAVA_HOME is set, make sure to enable the export plugin:

$ jenv enable-plugin export

References