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 org.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.

⏎ org/w3c/dom/events/DocumentEvent.java

/*
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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/*
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 * Copyright (c) 2000 World Wide Web Consortium,
 * (Massachusetts Institute of Technology, Institut National de
 * Recherche en Informatique et en Automatique, Keio University). All
 * Rights Reserved. This program is distributed under the W3C's Software
 * Intellectual Property License. This program is distributed in the
 * hope that it will be useful, but WITHOUT ANY WARRANTY; without even
 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE.
 * See W3C License http://www.w3.org/Consortium/Legal/ for more details.
 */

package org.w3c.dom.events;

import org.w3c.dom.DOMException;

/**
 *  The <code>DocumentEvent</code> interface provides a mechanism by which the
 * user can create an Event of a type supported by the implementation. It is
 * expected that the <code>DocumentEvent</code> interface will be
 * implemented on the same object which implements the <code>Document</code>
 * interface in an implementation which supports the Event model.
 * <p>See also the <a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Events-20001113'>Document Object Model (DOM) Level 2 Events Specification</a>.
 * @since DOM Level 2
 */
public interface DocumentEvent {
    /**
     *
     * @param eventType The <code>eventType</code> parameter specifies the
     *   type of <code>Event</code> interface to be created. If the
     *   <code>Event</code> interface specified is supported by the
     *   implementation this method will return a new <code>Event</code> of
     *   the interface type requested. If the <code>Event</code> is to be
     *   dispatched via the <code>dispatchEvent</code> method the
     *   appropriate event init method must be called after creation in
     *   order to initialize the <code>Event</code>'s values. As an example,
     *   a user wishing to synthesize some kind of <code>UIEvent</code>
     *   would call <code>createEvent</code> with the parameter "UIEvents".
     *   The <code>initUIEvent</code> method could then be called on the
     *   newly created <code>UIEvent</code> to set the specific type of
     *   UIEvent to be dispatched and set its context information.The
     *   <code>createEvent</code> method is used in creating
     *   <code>Event</code>s when it is either inconvenient or unnecessary
     *   for the user to create an <code>Event</code> themselves. In cases
     *   where the implementation provided <code>Event</code> is
     *   insufficient, users may supply their own <code>Event</code>
     *   implementations for use with the <code>dispatchEvent</code> method.
     * @return The newly created <code>Event</code>
     * @exception DOMException
     *   NOT_SUPPORTED_ERR: Raised if the implementation does not support the
     *   type of <code>Event</code> interface requested
     */
    public Event createEvent(String eventType)
                             throws DOMException;

}

⏎ org/w3c/dom/events/DocumentEvent.java

Or download all of them as a single archive file:

File name: jre-rt-org-1.8.0_191-src.zip
File size: 951125 bytes
Release date: 2018-10-28
Download 

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

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

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