h>
<td class="colLast">
<div class="block">If this library contains the specified function name</div>
</td>
</tr>
<tr class="rowColor" id="i1">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#containsNamespace(java.lang.String,jakarta.faces.view.facelets.Tag)">containsNamespace</a></span>&#8203;(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class=