</code> - the key.</dd>
<dd><code>newValues</code> - the values to be added.</dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/NullPointerException.html" title="class or interface in java.lang" class="external-link">NullPointerException</a></code> - if the supplied array of new values is <code>null</code>.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="addAll(K,java.util.List)">
<h3 id="addAll(java.lang.Object,java.util.List)">addAl