require_java 8
install_package "jruby-9.3.0.0" "https://repo1.maven.org/maven2/org/jruby/jruby-dist/9.3.0.0/jruby-dist-9.3.0.0-bin.tar.gz#2dc1f85936d3ff3adc20d90e5f4894499c585a7ea5fedec67154e2f9ecb1bc9b" jruby