require_java 8
install_package "jruby-9.3.8.0" "https://repo1.maven.org/maven2/org/jruby/jruby-dist/9.3.8.0/jruby-dist-9.3.8.0-bin.tar.gz#674a4d1308631faa5f0124d01d73eb1edc89346ee7de21c70e14305bd61b46df" jruby