In an ever-growing sea of parameters that one needs to memorize for tens or even hundreds of command-line programs I decided to keep a list of some of the more useful and frequently used Maven parameters in case I forget anything. This should be run from a parent POM’s directory. It lets you view the POM file that would be in effect if you were building the project. The result is a composite POM containing all your child POMs that you defined as modules in the parent POM.