How to Package Specific Modules in a Maven Multi-Module Project?

Maven Modules and Packaging Specific Modules

In a multi-module Maven project with a parent project and sub-modules, it can be challenging to package a specific module without building the entire hierarchy.

One option is to use the Maven's advanced reactor options:

-pl, --projects

Build specified reactor projects instead of all projects.

-am, --also-make

If a project list is specified, also build projects required by the list.

By combining these options, you can build only the desired module and its dependencies. For example, to package module B:

mvn install -pl B -am

This command will build module B and any dependencies required by B.

Note:

• If the module's artifactId differs from the directory name, use a colon in the -pl option:

mvn install -pl :B -am

• For more information on building specific modules in a Maven multi-module project, refer to the following resource:

Define modules list which shall be build in Maven multiproject build

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