Change effective on 12 October 2015
The Clojure buildpack no longer adds the
JVM_OPTS configuration variable to your application by default. If you are already using
JVM_OPTS in your
Procfile or config vars, there is no change required. However, it is recommended that Clojure applications use the standard Java environment variables provided by the platform. These defaults are preferred because they will be scaled automatically with the dyno size.
For more information, see the Dev Center article on Heroku Clojure Support.