Change effective on 21 October 2016
Heroku’s support for Java 8 has been upgraded to include OpenJDK 8u111 and 8u112. Version 8u112 is a patch-set update (PSU), which includes the 8u111 critical patch update (CPU) plus additional features.
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: