de>, <code><a href="PreDestroyApplicationEvent.html" title="class in jakarta.faces.event">PreDestroyApplicationEvent</a></code>, <code><a href="PreDestroyCustomScopeEvent.html" title="class in jakarta.faces.event">PreDestroyCustomScopeEvent</a></code>, <code><a href="PreRemoveFlashValueEvent.html" title="class in jakarta.faces.event">PreRemoveFlashValueEvent</a></code></dd>
</dl>
<hr>
<pre>public abstract class <span class="typeNameLabel">SystemEvent</span>
extends <a href="https://docs.oracle.com/en/java/j