OpenJ9 Buildpack

This is a custom buildpack used by LCDP.ai low code development platform

It has much lower memory footprint compared to the default Heroku OpenJDK buildpack.

This is a custom buildpack of AdoptOpenJDK Buildpack which installs the Eclipse OpenJ9 VM AdoptOpenJDK11.

Usage

Replace the default Heroku Java buildpack

$ heroku buildpacks:set https://github.com/maatuss/openj9-buildpack.git 
$ heroku buildpacks:add heroku/java  
$ git push heroku master

Customizing

Create a file system.properties at the root of your project

adoptopenjdk.version=<version>  
adoptopenjdk.release=<release>

License

MIT