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

⏎ java/awt/event/AWTEventListener.java

/*
 * Copyright (c) 1998, 2003, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package java.awt.event;

import java.util.EventListener;
import java.awt.AWTEvent;

/**
 * The listener interface for receiving notification of events
 * dispatched to objects that are instances of Component or
 * MenuComponent or their subclasses.  Unlike the other EventListeners
 * in this package, AWTEventListeners passively observe events
 * being dispatched in the AWT, system-wide.  Most applications
 * should never use this class; applications which might use
 * AWTEventListeners include event recorders for automated testing,
 * and facilities such as the Java Accessibility package.
 * <p>
 * The class that is interested in monitoring AWT events
 * implements this interface, and the object created with that
 * class is registered with the Toolkit, using the Toolkit's
 * <code>addAWTEventListener</code> method.  When an event is
 * dispatched anywhere in the AWT, that object's
 * <code>eventDispatched</code> method is invoked.
 *
 * @see java.awt.AWTEvent
 * @see java.awt.Toolkit#addAWTEventListener
 * @see java.awt.Toolkit#removeAWTEventListener
 *
 * @author Fred Ecks
 * @since 1.2
 */
public interface AWTEventListener extends EventListener {

    /**
     * Invoked when an event is dispatched in the AWT.
     */
    public void eventDispatched(AWTEvent event);

}

⏎ java/awt/event/AWTEventListener.java

Or download all of them as a single archive file:

File name: jre-rt-java-1.8.0_191-src.zip
File size: 6664831 bytes
Release date: 2018-10-28
Download 

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