com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;? extends <a href="../../../../javax/faces/event/SystemEvent.html" title="class in javax.faces.event">SystemEvent</a>&gt;&nbsp;eventClass)</code>
<div class="block"><p class="changed_modified_2_1">This implementation throws
 <code>UnsupportedOperationException</code> and is provided
 for the sole purpose of not breaking existing applications that extend
 this class.</div>
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