Note that the returned collection may be unmodifiable. Modifications should be performed by calling
 <a href="#setRender(java.util.Collection)"><code>setRender(java.util.Collection&lt;java.lang.String&gt;)</code></a>.
 </p></div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the ids of components to render.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.0</dd>
</dl>
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