Java – use Maven to add another project’s jar as a resource

In my project, I have a subproject automatic update program It is basically a jar file extracted and run when the update is available

Can I compile the subproject and place the output jar as a build resource for Updater. Exe Jar is included in the final jar, for example:

Project-1.0.jar
 |-updater.jar
    |-Main.class
    |-B.class

Thank you for your help (I'm a novice of Maven)

Solution

This task calls Maven assembly plugin or Maven dependency plugin

(I hope the updater is also a maven project) this shoudl is the correct configuration of Maven dependency plugin [I didn't test this, you may need to put the updater into the project depndencies]

<project>
  [...]
  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-dependency-plugin</artifactId>
        <version>2.7</version>
        <executions>
          <execution>
            <id>copy</id>
            <phase>prepare-package</phase>
            <goals>
              <goal>copy</goal>
            </goals>
            <configuration>
              <artifactItems>
                <artifactItem>
                  <groupId>company.com.project</groupId>
                  <artifactId>Updater</artifactId>
                  <version>0.0.1-SNAPSHOT</version>
                  <type>jar</type>
                  <outputDirectory>${project.build.outputDirectory}/classes</outputDirectory>
                  <destFileName>updater.jar</destFileName>
                </artifactItem>
              </artifactItems>
            </configuration>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>
  [...]
</project>