l#setCheckExtension(boolean)">setCheckExtension</a></strong>(boolean&nbsp;checkExtension)</code>
<div class="block">Check nested libraries for extensions</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../org/apache/tools/ant/taskdefs/optional/extension/JarLibResolveTask.html#setFailOnError(boolean)">setFailOnError</a></strong>(boolean&nbsp;failOnError)</code>
<div class="block">Set whether to fail if error.</di