I have Maven multi-module project with such structure:
parent-pom-project -- module1 -- module2
parent-pom-project
-- module1
-- module2
At the paren
You could try to use the mvn help:effective-pom -Ptest command to see the paramters used in your build.
See http://maven.apache.org/plugins/maven-help-plugin/plugin-info.html for more details.