I Reference syntax should be escaped.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>uri</code> - the URI designating a file in the local filesystem.</dd>
<dt><span class="strong">Returns:</span></dt><dd>the local file system path for the file.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if the URI is malformed or not a legal file: URL</dd><dt><span class="strong">Since:</span></dt>
  <dd>Ant 1.6</dd></dl>
</li>
</ul>
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