Jenv add /Library/Java/JavaVirtualMachines/jdk1.8.0_66. Type these commands to register JDKs in jEnv (replace the minor and patch versions with yours): jenv add /Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/ There’s a good list at the end of the README for readxl (one of these Java-free packages). JEnv doesn’t install JDKs, so we have to tell jEnv where to look for them. This isn’t a direct answer (sorry), but getting the Java system requirement for xlsx working properly is notoriously a pain, so it seemed worth mentioning that there are now a few other packages that cover the same ground without requiring Java. Init jenv if which jenv > /dev/null then eval '$(jenv init -)' fi The macOS High Sierra 10.13.2 update improves the stability, compatibility and security of your Mac, and is recommended for all users. Now it is time to install jEnv: brew install jenvĪdd the following lines to ~/.bash_profile This will initialize jEnv. To install JDK 9 (latest) brew cask install java Install Java 6, 7, 8, 9 (latest): brew tap caskroom/versions To check JDK 9 (latest) brew cask info java 100 Safe and Secure Free Download 64-bit Software Version. If your brew or cask is outdated, update and upgrade: brew update & brew upgrade brew-cask-completion & brew cleanup & brew cask cleanupĬheck if we already have JDK 6, 7, 8, 9 installed by Homebrew Cask: brew tap caskroom/versions The API Specification of the Java Platform, Standard Edition and Java Development Kit Install Homebrew Cask first if you haven’t: brew update I’m going to use Cask to install Java 7 and 8. On Mac, Homebrew is the de-facto package manager, and Homebrew Cask is the app manager. Install Multiple Java Versions on macOS High Sierra Install Homebrew Cask

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