Build specific modules instead of building all modules in a multi-module projects

Use the Maven advanced reactor options:

-pl, –projects Build specified reactor projects instead of all projects -am, –also-make If project list is specified, also build projects required by the list

In the parent project’s directory, run

mvn install –projects projB

This will build projB and the modules required by projB.

More info: http://www.sonatype.com/people/2009/10/maven-tips-and-tricks-advanced-reactor-options/