code> attribute is then checked for being set/not set.
If it did get set (ie., the jar file is up-to-date),
then the <code>xmlBuild</code> target won't be run.
</p>

<p> The following example shows a single source file being checked
against a single target file:</p>
<pre>  &lt;uptodate property=&quot;isUpToDate&quot;
            srcfile=&quot;/usr/local/bin/testit&quot;
            targetfile=&quot;${build}/.flagfile&quot;/&gt;
</pre>
<p>sets the property <code>isUpToDate</code> to <code>true</code>
if <cod