How to Effectively Manage Multiple Java Versions on Mac OS X?
Published on 2024-11-07
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Managing Multiple Java Versions on Mac OS X
When developing on Mac OS X, multiple Java versions might be necessary for various projects with different compatibility requirements. This article explores how to effectively install and manage multiple Java versions on a Mac.
The Homebrew Approach
Homebrew, a popular package manager for Mac, offers a convenient solution to managing multiple Java versions. It includes homebrew-cask for installing Java versions and jenv for managing them.
Installation Steps
- Install Homebrew using its official documentation.
- Install homebrew-cask: brew install cask
- Install jenv: brew install jenv
- Install specific Java versions using cask (see homebrew-cask versions below)
- Add each installed version to jenv: jenv add
Homebrew-cask Versions
Add the homebrew/cask-versions tap to Homebrew: brew tap homebrew/cask-versions
Search for specific versions using: brew search temurin. Then, install them: brew install --cask temurin8, brew install --cask temurin9.
Java Paths and Versions
Each installed Java version has a different path. Use /usr/libexec/java_home -V to check paths. On Mac OS X Mavericks, there are three common paths:
- Built-in JRE: /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin/Contents/Home
- Apple JDK: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/
- Oracle JDK: /Library/Java/JavaVirtualMachines/jdk1.8.0_11.jdk/Contents/Home
Troubleshooting and Resources
- Removing Java 8 JDK: https://apple.stackexchange.com/questions/288827/how-to-uninstall-java-jdk
- Managing multiple Java versions: http://hanxue-it.blogspot.ch/2014/05/installing-java-8-managing-multiple.html
- Homebrew documentation: http://brew.sh
- Homebrew-cask versions: https://github.com/caskroom/homebrew-versions
- Jenv: http://www.jenv.be
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