OpenJDK 9 Download and Installation on Mac

OpenJDK Developers Guide

Quick guide to download and install OpenJDK 9 on Mac. - OpenJDK Community Version

What is OpenJDK

OpenJDK is the short form of Open Java Development Kit similar to Oracle's Java Development Kit used to develop Java Applications. Main difference between Oracle JDK and OpenJDK is that OpenJDK is free for all while Oracle Java Development Kit or Oracle JDK requires commercial license. For more details refer openjdk vs oracle jdk

If you want to know more about OpenJDK, you can go through Open Java Development Kit Quick guide.

Step #1: Download

Go to and download the OpenJDK 9 tar distribution openjdk-9.0.4_osx-x64_bin.tar.gz. Here is the quick link to download the OpenJDK 9 tar file openjdk-9.0.4_osx-x64_bin.tar.gz

Step #2: Install

To Install OpenJDK 9 Java Runtime - Untar the downloaded OpenJKD 9 tar file to a convenient directory say "Downloads".

$ cd ~/Downloads

$ tar xf openjdk-9.0.4_osx-x64_bin.tar.gz

Step #3: Configure

Once the above steps are successfully completed , move the unziped directory to /Library/Java/JavaVirtualMachines/

sudo mv jdk-9.jdk /Library/Java/JavaVirtualMachines/

Step #4: Verify

Once the OpenJDK 9 Download and installation is complete, we can verify the installed OpenJDK 9 version using below Command.

Go to Mac prompt and type java -version
The above command prints the OpenJDK 9 version you installed.

Java -version

openjdk version "9" xxxx-xx-xx
OpenJDK Runtime Environment xx.x (build x+xx)
OpenJDK 64-Bit Server VM (build x+xx, mixed mode)

Congratulations !!! Now we have installed OpenJDK 9 Successfully.

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