Question

While writing for the first time a multi-modules maven pom, I wonder something.

First, here my parent pom :

    ...
    <modelVersion>4.0.0</modelVersion>
    <groupId>project.room_management</groupId>
    <artifactId>room_management</artifactId>
    <packaging>pom</packaging>
    <version>1.0</version>
    <name>room_management</name>
    <modules>
        <module>room_management_dao</module>
        <module>room_management_domain</module>
        <module>room_management_service</module>
        <module>room_management_gui</module>
    </modules>
    ...

and one of its children :

     ...
    <parent>
        <groupId>project.room_management</groupId>
        <artifactId>room_management</artifactId>
        <version>1.0</version>
    </parent>

    <modelVersion>4.0.0</modelVersion>
    <groupId>project.room_management</groupId>
    <artifactId>room_management_domain</artifactId>
    <version>1.0</version>
   ...

Considering I don’t need common modules to be share from parent to children poms, can I remove without “risks” the parent declaration into the children poms ? Or Maven does need it for modules compilation ?

Answer 1

You do not need the <parent> section in the modules.

This primarily mean that each module must be independent – you cannot share configuration sections through the parent.