lass="typeNameLabel">ReadListener</span>
extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/EventListener.html?is-external=true" title="class or interface in java.util" class="externalLink">EventListener</a></pre>
<div class="block"><p>
 This class represents a call-back mechanism that will notify implementations as HTTP request data becomes available
 to be read without blocking.
 </p></div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>Servlet 3.1</dd>
<