Change effective on 07 November 2016
Heroku’s support for Java, Scala, Clojure, Groovy and JRuby applications now includes the option of using the Azul® Zulu® JDK versions 8u112 and 7u121. To use Zulu with your app, create a
system.properties file in the root directory of your application with the following contents:
Add this file to Git, and the official buildpacks will install version 8u112 of Zulu on the next deployment.