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/dnd/DragSourceMotionListener.java

/*
 * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package java.awt.dnd;

import java.util.EventListener;

/**
 * A listener interface for receiving mouse motion events during a drag
 * operation.
 * <p>
 * The class that is interested in processing mouse motion events during
 * a drag operation either implements this interface or extends the abstract
 * <code>DragSourceAdapter</code> class (overriding only the methods of
 * interest).
 * <p>
 * Create a listener object using that class and then register it with
 * a <code>DragSource</code>. Whenever the mouse moves during a drag
 * operation initiated with this <code>DragSource</code>, that object's
 * <code>dragMouseMoved</code> method is invoked, and the
 * <code>DragSourceDragEvent</code> is passed to it.
 *
 * @see DragSourceDragEvent
 * @see DragSource
 * @see DragSourceListener
 * @see DragSourceAdapter
 *
 * @since 1.4
 */

public interface DragSourceMotionListener extends EventListener {

    /**
     * Called whenever the mouse is moved during a drag operation.
     *
     * @param dsde the <code>DragSourceDragEvent</code>
     */
    void dragMouseMoved(DragSourceDragEvent dsde);
}

⏎ java/awt/dnd/DragSourceMotionListener.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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