I would like to add some smoke tests for functionality included in javapackages-tools module.
According to current modules policy [1] modular packages can only exist as alternative versions. Since Javapackages exists as non-modular package in Fedora, modular Javapackages in the same version is not allowed according to the policy. [1] https://docs.fedoraproject.org/en-US/modularity/policies/