[INFO] --- maven-jar-plugin:2.3.1:jar (default-jar) @ my-project ---
[INFO] Building jar: /Users/sfrazer/projects/my-project/target/my-project-0.0.1.jar
[INFO]
[INFO] --- maven-assembly-plugin:2.2-beta-5:single (jar-with-dependencies) @ my-project ---
[INFO] Building jar: /Users/sfrazer/projects/my-project/target/my-project-0.0.1-jar-with-dependencies.jar

<plugin>
  <artifactId>maven-assembly-plugin</artifactId>
  <configuration>
    <archive>
      <manifest>
        <mainClass>my.package.App</mainClass>
      </manifest>
    </archive>
    <descriptorRefs>
      <descriptorRef>jar-with-dependencies</descriptorRef>
    </descriptorRefs>
  </configuration>
  <executions>
    <execution>
      <id>jar-with-dependencies</id>
      <phase>package</phase>
      <goals>
        <goal>single</goal>
      </goals>
    </execution>
  </executions>
</plugin>