Profile qulice can be activated only manually from command line, e.g.:
$ mvn clean install -Pqulice
It runs a number of checks to make sure the quality of the build is acceptable. There is only one plugin that is used at the moment to control quality and prevent errors:
qulice-maven-plugin is a compound static analysis plugin, that pre-configures and executes Checkstyle, PMD, FindBugs, CodeNarc (for Groovy code) and a few other plugins in one bucket. That's why the name of the profile, since this is the biggest tool being executed. It is expected by default that your LICENSE.txt is located in a root directory of every module.
All plugins are bound to the verify Maven phase. All executions are named jcabi-check.