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Learn something new everyday...

GWT libraries need to have the JAVA code distributed with them.  As it turns out the GWT compiler needs the JAVA source in order to compile your GWT application.

Never had to bundle source in with the jar, but maven made it easy;)

<pre>

    <resources>
         <resource>
            <directory>src/main/java</directory>
            <includes>
               <include>**/*.xml</include>
            </includes>
         </resource>
            <resource>
            <directory>src/main/java</directory>
            <includes>
               <include>**/*.java</include>
            </includes>
         </resource>
        
              
      </resources>

</pre>