Support for Zulu JDK

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 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.

For more information on configuring your JDK, see the Dev Center documentation for Java. For more information on Zulu, see the official Azul documentation.