You can define the version of Maven/JDK you want to use by picking the appropriate image from Dockerhub, or using any of your own images (even from[external registries]({{site.baseurl}}/docs/docker-registries/external-docker-registries/)).

Note the use of the two user-defined environment variables passed to`server.password` and`server.username`. You will need to define those yourself. See the documentation on[User Procided Variables]({{site.baseurl}}/docs/codefresh-yaml/variables/#user-provided-variables).

{% include image.html

lightbox="true"

file="/images/learn-by-example/java/publish-jar-pipeline.png"