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/UnsolicitedNotification.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.NamingException;

/**
 * This interface represents an unsolicited notification as defined in
 * <A HREF="http://www.ietf.org/rfc/rfc2251.txt">RFC 2251</A>.
 * An unsolicited notification is sent by the LDAP server to the LDAP
 * client without any provocation from the client.
 * Its format is that of an extended response (<tt>ExtendedResponse</tt>).
 *
 * @author Rosanna Lee
 * @author Scott Seligman
 * @author Vincent Ryan
 *
 * @see ExtendedResponse
 * @see UnsolicitedNotificationEvent
 * @see UnsolicitedNotificationListener
 * @since 1.3
 */

public interface UnsolicitedNotification extends ExtendedResponse, HasControls {
    /**
     * Retrieves the referral(s) sent by the server.
     *
     * @return A possibly null array of referrals, each of which is represented
     * by a URL string. If null, no referral was sent by the server.
     */
    public String[] getReferrals();

    /**
     * Retrieves the exception as constructed using information
     * sent by the server.
     * @return A possibly null exception as constructed using information
     * sent by the server. If null, a "success" status was indicated by
     * the server.
     */
    public NamingException getException();
}

⏎ javax/naming/ldap/UnsolicitedNotification.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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