class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code> - on error</dd><dt><span class="strong">Since:</span></dt>
  <dd>Ant 1.7</dd></dl>
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<h4>archiveIsUpToDate</h4>
<pre>protected&nbsp;boolean&nbsp;archiveIsUpToDate(java.lang.String[]&nbsp;files)</pre>
<div class="block"><span class="strong">Deprecated.</span>&nbsp;<i>since 1.5.x.
             use the two-arg version in