Do https://github.com/AdoptOpenJDK/homebrew-openjdk
Then do https://github.com/graalvm/homebrew-tap
Then add the following to ~/.zshrc
export JAVA8_HOME="$(/usr/libexec/java_home -v1.8)"
# export JAVA9_HOME="$(/usr/libexec/java_home -v9)"
export JAVA10_HOME="$(/usr/libexec/java_home -v10)"