Create a Java development environment using jenv on Mac

$ brew tap caskroom/versions

# java 8
$ brew cask install java8

# java 10 (newest version)
$ brew cask install java

$ git clone https://github.com/gcuisinier/jenv.git ~/.jenv

# jenv
export PATH="$HOME/.jenv/bin:$PATH"
eval "$(jenv init -)"

$ source .bash_profile

$ /usr/libexec/java_home -V
Matching Java Virtual Machines (2):
    10.0.2, x86_64:	"Java SE 10.0.2"	/Library/Java/JavaVirtualMachines/jdk-10.0.2.jdk/Contents/Home
    1.8.0_181, x86_64:	"Java SE 8"	/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home

$ jenv add /Library/Java/JavaVirtualMachines/jdk-10.0.2.jdk/Contents/Home
$ jenv add /Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home

$ jenv global 10.0.2

$ jenv local 10.0.2

$ cd $(jenv root)
$ git pull

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