code> was set to <code>true</code>, then
 the value at the given index or <code>null</code> if the index was out of bounds. Otherwise, undefined.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if the property could not be coerced into an integer.</dd>
<dd><code><a hr