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How to Install Java OpenJDK 15 on macOS Catalina

 4 years ago
source link: https://knasmueller.net/how-to-install-java-openjdk-15-on-macos-catalina
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How to Install Java OpenJDK 15 on macOS Catalina

macOS.jpg

In this article, I will demonstrate how to install Java OpenJDK 15 on macOS Catalina in 2020.

Download and Install OpenJDK 15

Download the .tar.gz version of OpenJDK 15 from jdk.java.net/15/ and move the file to /Library/Java/JavaVirtualMachines/ on your mac. Then, extract it and delete the archive:

sudo mv openjdk-15_osx-x64_bin.tar.gz /Library/Java/JavaVirtualMachines/
cd /Library/Java/JavaVirtualMachines/
sudo tar -xzf openjdk-15_osx-x64_bin.tar.gz
sudo rm openjdk-15_osx-x64_bin.tar.gz

Next, execute the following command to find out where JDK 15 is located:

$ /usr/libexec/java_home -v15
/Library/Java/JavaVirtualMachines/jdk-15.jdk/Contents/Home

and append the resulting path as an export into your .bash_profile (or, change the existing JAVA_HOME entry in your .bash_profile if it already exists):

echo -n "\nexport JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk-15.jdk/Contents/Home" >> ~/.bash_profile

and make sure to apply the changes:

source ~/.bash_profile

Test Java

You should now be able to run java:

java -version

Depending on your security settings, the following warning needs to be accepted by clicking “Open”:

Pasted-into-How-to-Install-Java-OpenJDK-14-on-macOS-Catalina.png

You should then see an output similar to the following:

openjdk version "15" 2020-09-15
OpenJDK Runtime Environment (build 15+36-1562)
OpenJDK 64-Bit Server VM (build 15+36-1562, mixed mode, sharing)

Congratulations! You have installed OpenJDK 15.

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