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How to install OpenJDK on macOS?

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Steps:

  1. Install OpenJDK using brew

    brew install openjdk 
    brew install openjdk

  2. Configure environment variable JAVA_HOME.

    Configure manually:

    • Add the below line to ~/.zshrc:

      export JAVA_HOME="/usr/local/opt/openjdk/libexec/openjdk.jdk/Contents/Home" 
      export JAVA_HOME="/usr/local/opt/openjdk/libexec/openjdk.jdk/Contents/Home"

    • Restart your terminal.

    Or you can run the below command:

    echo -e "\nexport JAVA_HOME=\"$(brew --prefix openjdk)/libexec/openjdk.jdk/Contents/Home\"" >> ${ZDOTDIR:-~}/.zshrc && exec zsh 
    echo -e "\nexport JAVA_HOME=\"$(brew --prefix openjdk)/libexec/openjdk.jdk/Contents/Home\"" >> ${ZDOTDIR:-~}/.zshrc && exec zsh