JRE 8 rt.jar is the JAR file for JRE 8 RT (Runtime) libraries. JRE (Java Runtime) 8 is the runtime environment included in JDK 8. JRE 8 rt.jar libraries are divided into 6 packages:

com.* - Internal Oracle and Sun Microsystems libraries
java.* - Standard Java API libraries.
javax.* - Extended Java API libraries.
jdk.* -  JDK supporting libraries.
org.* - Third party libraries.
sun.* - Old libraries developed by Sun Microsystems.

JAR File Information:

Directory of C:\fyicenter\jdk-1.8.0_191\jre\lib
      63,596,151 rt.jar

Here is the list of Java classes of the javax.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.

⏎ javax/naming/ldap/UnsolicitedNotificationListener.java

/*
 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package javax.naming.ldap;

import javax.naming.event.NamingListener;

/**
 * This interface is for handling <tt>UnsolicitedNotificationEvent</tt>.
 * "Unsolicited notification" is defined in
 * <A HREF="http://www.ietf.org/rfc/rfc2251.txt">RFC 2251</A>.
 * It allows the server to send unsolicited notifications to the client.
 * A <tt>UnsolicitedNotificationListener</tt> must:
 *<ol>
 * <li>Implement this interface and its method
 * <li>Implement <tt>NamingListener.namingExceptionThrown()</tt> so
 * that it will be notified of exceptions thrown while attempting to
 * collect unsolicited notification events.
 * <li>Register with the context using one of the <tt>addNamingListener()</tt>
 * methods from <tt>EventContext</tt> or <tt>EventDirContext</tt>.
 * Only the <tt>NamingListener</tt> argument of these methods are applicable;
 * the rest are ignored for a <tt>UnsolicitedNotificationListener</tt>.
 * (These arguments might be applicable to the listener if it implements
 * other listener interfaces).
 *</ol>
 *
 * @author Rosanna Lee
 * @author Scott Seligman
 * @author Vincent Ryan
 *
 * @see UnsolicitedNotificationEvent
 * @see UnsolicitedNotification
 * @see javax.naming.event.EventContext#addNamingListener
 * @see javax.naming.event.EventDirContext#addNamingListener
 * @see javax.naming.event.EventContext#removeNamingListener
 * @since 1.3
 */
public interface UnsolicitedNotificationListener extends NamingListener {

    /**
     * Called when an unsolicited notification has been received.
     *
     * @param evt The non-null UnsolicitedNotificationEvent
     */
     void notificationReceived(UnsolicitedNotificationEvent evt);
}

⏎ javax/naming/ldap/UnsolicitedNotificationListener.java

Or download all of them as a single archive file:

File name: jre-rt-javax-1.8.0_191-src.zip
File size: 5381005 bytes
Release date: 2018-10-28
Download 

⇒ JRE 8 rt.jar - org.* Package Source Code

⇐ JRE 8 rt.jar - java.* Package Source Code

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