when building a multi-module project with -rf and the project is not found, Maven explodes all over your face and prints the entire POM instead of just pointing out the missing project - it does, but hides it before the POM dump so the info is easily lost:
[ERROR] [ERROR] Could not find project to resume reactor build from: :missing-in-action vs [MavenProject: (entire POM dumped here)
Good old make would just tell you this precise and helpful message, instead of dumping the entire makefile:
make: *** No rule to make target 'some-nonexisting-target'. Stop.
Please make maven a bit more user friendly when reporting errors...