Where can I find a single example expressed in Ivy, Maven, Gant, and Gradle?

Question

I'd like to find a simple, non-trivial Java project that is expressed in terms of Ant + Ivy, Maven, Gant, and Gradle. I'm not interested in each tool's varied sample demos.

Where can I find such an example, for reference?

Answer 1

I couldn't find one, so I'm working on such an example. The project is hosted here on GitHub, and is freely available without an account.

The first 'simple' example uses a Java POJO, a Hibernate mapping file, and an integration test. It is expressed in Ant, Ant + Ivy, Maven, Gant, and Gradle. Though modest, the integration test passes in each case.