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Manage Multiple Azul Zulu Versions on macOS

If you use a DMG installer to install Azul Zulu, the default installation directory is /Library/Java/JavaVirtualMachines/<azul_zulu_folder>/. The <azul_zulu_folder> represents the type of Azul Zulu package (JDK or JRE) and its version, for example zulu-11.jdk.

You can view all Azul Zulu versions installed on your Mac by navigating to the JavaVirtualMachines directory. Use Finder or launch Terminal and run the following command:

 % ls -1 /Library/Java/JavaVirtualMachines/
zulu-11.jdk
zulu-13.jre
zulu-15.jdk 

To see which version of Java is used by default, use the java_home tool:

 % /usr/libexec/java_home
/Library/Java/JavaVirtualMachines/zulu-15.jdk/Contents/Home 

To execute a different version of Java, use the following command:

 % /usr/libexec/java_home -v 11 --exec java -version
openjdk version "11.0.11" 2021-04-20 LTS
OpenJDK Runtime Environment Zulu11.48+21-CA (build 11.0.11+9-LTS)
OpenJDK 64-Bit Server VM Zulu11.48+21-CA (build 11.0.11+9-LTS, mixed mode)