e></a> will return an empty map even though
     some files may be added/changed.</li>
 </ul></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>transformInvocation</code> - the invocation object containing the transform inputs.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - if an IO error occurs.</dd>
<dd><code>java.lang.InterruptedException</code></dd>
<dd><code><a href="../../../../../com/android/build/api/transform/TransformException.