Multi-Module Maven Projects

External

• Guide to Working with Multiple Modules https://maven.apache.org/guides/mini/guide-multiple-modules.html

Internal

• Maven Concepts

Overview

For guidelines on when it is appropriate to use modules, and when separate projects, see "When We Should Use Modules ?" section.

<project>
    ...
    <modules>
        <module>module1</module>
        <module>module2</module>
    </modules>
    ...
</project>

Each <module> element corresponds to a subdirectory of the top level project directory. Maven will look into these subdirectories for pom.xml files. Each module will have its own independent source hierarchy.

Organizatorium

• The modules do not need to specify their <groupId>, as it is inherited from their parent, and thus redundant.