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/peer/DropTargetContextPeer.java

/*
 * Copyright (c) 1997, 2007, 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.peer;

import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.dnd.DropTarget;
import java.awt.dnd.InvalidDnDOperationException;

/**
 * <p>
 * This interface is exposed by the underlying window system platform to
 * enable control of platform DnD operations
 * </p>
 *
 * @since 1.2
 *
 */

public interface DropTargetContextPeer {

    /**
     * update the peer's notion of the Target's actions
     */

    void setTargetActions(int actions);

    /**
     * get the current Target actions
     */

    int getTargetActions();

    /**
     * get the DropTarget associated with this peer
     */

    DropTarget getDropTarget();

    /**
     * get the (remote) DataFlavors from the peer
     */

    DataFlavor[] getTransferDataFlavors();

    /**
     * get an input stream to the remote data
     */

    Transferable getTransferable() throws InvalidDnDOperationException;

    /**
     * @return if the DragSource Transferable is in the same JVM as the Target
     */

    boolean isTransferableJVMLocal();

    /**
     * accept the Drag
     */

    void acceptDrag(int dragAction);

    /**
     * reject the Drag
     */

    void rejectDrag();

    /**
     * accept the Drop
     */

    void acceptDrop(int dropAction);

    /**
     * reject the Drop
     */

    void rejectDrop();

    /**
     * signal complete
     */

    void dropComplete(boolean success);

}

⏎ java/awt/dnd/peer/DropTargetContextPeer.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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