title: Ant The <copy> type doesn't support nested text data (" ") issue
body: <p>Hi My ant build script snippest looks like this.</p>
  
  <pre><code>&lt;copy todir="${warDir}/WEB-INF/classes"&gt;
      &lt;fileset dir="${classdir}" includes="**/*.class" /&gt; 
  &lt;/copy&gt;
  </code></pre>
  
  <p>I'm getting this error message when I execute ant against this build.xml</p>
  
  <pre><code>The &lt;copy&gt; type doesn't support nested text data (" ").
  </code></pre>
  
  <p>Can someone point out the issue I'm using fedora 16 and ant distribution 1.7.0</p>