Java support upgrades to JDK 8u51

Change effective on 22 July 2015

Heroku’s support for Java 8 has been upgraded to OpenJDK 8u51. This is now the default JDK for all Java, Scala, Clojure, Groovy and JRuby applications. To manually set the JDK version, create a system.properties file in the root directory of your project and put the following code in it:

java.runtime.version=1.8

For more information on Heroku’s Java support, see the Dev Center documentation for Java. For more information on OpenJDK8 u51, see the OpenJDK documentation for Java 8.