und</code>, or <a href="BoundType.html#NONE"><code>BoundType.NONE</code></a> if there is no lower bound</dd>
<dd><code>upper</code> - true to create an upper bound, false to create a lower bound</dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/IllegalArgumentException.html" title="class or interface in java.lang" class="external-link">IllegalArgumentException</a></code> - if <code>boundType</code> is null</dd>
</dl>
</section>
</li>
<li>
<sectio