At the moment Maven doesn't see any unit test when building the project, it is caused by Maven Surefire 2.20 being unable to execute tests written with JUnit 5.

The project should be upgraded to Java 19.
Make sure to also update accordingly every workflow in place and the Dockerfile.

• Update the project
• Update Dockerfile
• Update Docker workflow
• Update codeql workflow
• Update Maven workflow

This issue lists Renovate updates and detected dependencies. Read the Dependency Dashboard docs to learn more.

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Detected dependencies

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Either JaCoCo or Cobertura must be configured for this to work properly, producing coverage reports to forward to Codacy.

EDIT:
codecov.io might be a valid alternative

At the moment, codecov always checks for coverage statistics for each pull request.
It should be configured adding a properly populated codecov.yml file in the root directory of the project in order to ignore pull requests opened by the Renovate bot to update a dependency.

The official documentation can be found here.

After issue #54 is completed, we should add 2 tests to GreeterTest in order to check the message both on Christmas day and on a normal day.

To do so, we should take advantage of JUnit's Assumptions in order to have a test run only when the precondition is met.

Running the project on a different day from 25th of December should print how many days (or months + days) we've got to Christmas.

The project should be updated with the configuration needed to use Gradle as its dependency manager, without having an impact on the existing code.

The project should be updated to work with Java 18 or 19