Setup JAVA_HOME with jenv and fish-shell in Mac

you need setup fish(omf) and HomeBrew before this

install open jdk (java8)

$ brew tap caskroom/versions

$ brew cask install java java8

install jenv

$ brew install jenv

$ mkdir ~/.jenv

$ mkdir ~/.jenv/versions

$ jenv add (/usr/libexec/java_home -v 1.8)

$ jenv global 1.8

set up for fish

code:.config/fish/conf.d/omf.fish

# set up java with jenv

# do not set JAVA_HOME here

set PATH $HOME/.jenv/bin $PATH

eval (jenv init - | source)