title: how to use Maven Assembly plugin in Multimodule Projects
body: <p>I have a multimodule maven project like :</p>
  
  <pre><code>Main Module
     Module A
     Module B
     Module C
  </code></pre>
  
  <p>when i build the Main module it will produce the following:</p>
  
  <pre><code>Main Module
     Module A
         target/A.jar
     Module B
         target/B.jar
     Module C
         target/C.jar
  </code></pre>
  
  <p>i need an assembly descriptor to zip all child artifacts (A.jar, B.jar, C.jar here) in a file :</p>
  
  <pre><code>My.zip
     - A.jar
     - B.jar
     - C.jar
  </code></pre>
  
  <p>any idea ? 
  Thanks in advance.</p>