isting property.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/tools/ant/taskdefs/Exit.html#setIf-java.lang.String-">setIf</a></span>(java.lang.String&nbsp;c)</code>
<div class="block">Only fail if the given expression evaluates to true or the name
 of an existing property.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class