<project>
  ...
  <build>
    <plugins>
      <plugin>
        <groupId>com.mt_ag.tools.maven</groupId>
        <artifactId>jar-module-maven-plugin</artifactId>
        <version>${project.version}</version>
        <configuration>
          <repack>true</repack>
        </configuration>
        <executions>
          <execution>
            <id>make-assembly</id>
            <phase>package</phase>
            <goals>
              <goal>jar</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>
  ...
</project>