brew install jenv

echo 'export PATH="$HOME/.jenv/bin:$PATH"' >> ~/.bash_profile
echo 'eval "$(jenv init -)"' >> ~/.bash_profile

echo 'export PATH="$HOME/.jenv/bin:$PATH"' >> ~/.zshrc
echo 'eval "$(jenv init -)"' >> ~/.zshrc

https://www.azul.com/downloads/?package=jdk#download-openjdk

jenv add /Library/Java/JavaVirtualMachines/jdk1.7.0_71.jdk/Contents/Home/

jenv remove 1.6

jenv versions

jenv global oracle64-1.6.0.39

jenv local oracle64-1.6.0.39

jenv shell oracle64-1.6.0.39

jenv enable-plugin export