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<td class="colOne"><a href="../../../javax/servlet/http/class-use/HttpSessionEvent.html#javax.servlet.http">HttpSessionEvent</a>
<div class="block">This is the class representing event notifications for changes to sessions within a web application.</div>
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<td class="colOne"><a href="../../../javax/servlet/http/class-use/HttpUpgradeHandler.html#javax.servlet.http">HttpUpgradeHandler</a>
<div class="block">This interface encapsulates th