Heroku's Java support now supports Maven Wrapper without binary JAR

Change effective on 17 December 2019

Support for Maven Wrapper without a binary JAR is now available on Heroku.

Previously, Maven Wrapper without a binary JAR checked into Git was not properly detected. Instead, Heroku’s default mechanism for Maven versions was used.

For more information on Maven and its versions, see the Apache Maven documentation. See the Dev Center for more information on Heroku Java Support.