Change effective on 17 October 2016
Heroku’s support for Java, Scala, Clojure, Groovy and JRuby applications now includes the option of using the Azul® Zulu® JDK. Zulu is a 100% open source certified build of OpenJDK that is fully compliant with the Java SE standard.
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 8u102 of the Zulu on the next deployment. For a list of supported versions, see the Dev Center documentation on JVM versions.