JDK 7u121 now available

Change effective on 14 November 2016

Heroku’s support for Java has been upgraded to include OpenJDK 7u121. To set the JDK version for an application, create a system.properties file in the root directory of your project and put the following code in it:


For more information on Heroku’s Java support, see the Dev Center documentation for Java. For more information on OpenJDK 7u121, see the OpenJDK documentation for Java 7.