undefect. CWE-407 — 63 sites patched across 27 ecosystems
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
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test/jdk/java/awt/dnd/MultiDataFlavorDropTest.java
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test/jdk/java/awt/dnd/MultiDataFlavorDropTest.java
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/*
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* Copyright (c) 2000, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.awt.Button;
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import java.awt.Color;
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import java.awt.Dimension;
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import java.awt.EventQueue;
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import java.awt.Frame;
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import java.awt.GridLayout;
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import java.awt.List;
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import java.awt.Panel;
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import java.awt.Point;
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import java.awt.Robot;
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import java.awt.datatransfer.DataFlavor;
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import java.awt.datatransfer.Transferable;
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import java.awt.datatransfer.UnsupportedFlavorException;
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import java.awt.dnd.DnDConstants;
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import java.awt.dnd.DragGestureEvent;
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import java.awt.dnd.DragGestureListener;
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import java.awt.dnd.DragSource;
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import java.awt.dnd.DragSourceDragEvent;
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import java.awt.dnd.DragSourceDropEvent;
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import java.awt.dnd.DragSourceEvent;
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import java.awt.dnd.DragSourceListener;
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import java.awt.dnd.DropTarget;
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import java.awt.dnd.DropTargetContext;
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import java.awt.dnd.DropTargetDragEvent;
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import java.awt.dnd.DropTargetDropEvent;
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import java.awt.dnd.DropTargetEvent;
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import java.awt.dnd.DropTargetListener;
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import java.awt.event.InputEvent;
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import java.awt.event.KeyEvent;
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import java.io.File;
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import java.io.InputStream;
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import java.io.Serializable;
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/*
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@test
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@bug 4399700
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@summary tests that drop transfer data can be requested in several data flavors.
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@key headful
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@run main MultiDataFlavorDropTest
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*/
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public class MultiDataFlavorDropTest {
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public static final int CODE_NOT_RETURNED = -1;
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public static final int CODE_OK = 0;
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public static final int CODE_FAILURE = 1;
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public static final int FRAME_ACTIVATION_TIMEOUT = 2000;
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public static final int DROP_TIMEOUT = 10000;
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public static final int DROP_COMPLETION_TIMEOUT = 1000;
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private int returnCode = CODE_NOT_RETURNED;
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volatile Frame frame;
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volatile Robot robot;
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volatile Panel panel;
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volatile Point p;
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volatile Dimension d;
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public static void main(String[] args) throws Exception {
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MultiDataFlavorDropTest test = new MultiDataFlavorDropTest();
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if (args.length > 0) {
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test.run(args);
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} else {
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EventQueue.invokeAndWait(test::init);
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try {
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test.start();
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} finally {
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EventQueue.invokeAndWait(() -> {
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if (test.frame != null) {
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test.frame.dispose();
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}
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});
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}
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}
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}
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public void run(String[] args) {
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try {
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if (args.length != 4) {
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throw new RuntimeException("Incorrect command line arguments.");
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}
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int x = Integer.parseInt(args[0]);
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int y = Integer.parseInt(args[1]);
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int w = Integer.parseInt(args[2]);
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int h = Integer.parseInt(args[3]);
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Transferable t = new TransferableNumber();
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panel = new DragSourcePanel(t);
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frame = new Frame();
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frame.setTitle("DragSource frame");
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frame.setLocation(300, 200);
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frame.add(panel);
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frame.pack();
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frame.setVisible(true);
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Thread.sleep(FRAME_ACTIVATION_TIMEOUT);
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Point sourcePoint = panel.getLocationOnScreen();
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Dimension d = panel.getSize();
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sourcePoint.translate(d.width / 2, d.height / 2);
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Point targetPoint = new Point(x + w / 2, y + h / 2);
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robot = new Robot();
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robot.mouseMove(sourcePoint.x, sourcePoint.y);
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robot.keyPress(KeyEvent.VK_CONTROL);
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robot.mousePress(InputEvent.BUTTON1_MASK);
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for (; !sourcePoint.equals(targetPoint);
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sourcePoint.translate(sign(targetPoint.x - sourcePoint.x),
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sign(targetPoint.y - sourcePoint.y))) {
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robot.mouseMove(sourcePoint.x, sourcePoint.y);
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Thread.sleep(10);
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}
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robot.mouseRelease(InputEvent.BUTTON1_MASK);
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robot.keyRelease(KeyEvent.VK_CONTROL);
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synchronized (t) {
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t.wait(DROP_TIMEOUT);
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}
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Thread.sleep(DROP_COMPLETION_TIMEOUT);
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} catch (Throwable e) {
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e.printStackTrace();
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System.exit(MultiDataFlavorDropTest.CODE_FAILURE);
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}
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System.exit(MultiDataFlavorDropTest.CODE_OK);
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}
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public static int sign(int n) {
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return n < 0 ? -1 : n == 0 ? 0 : 1;
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}
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public void init() {
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frame = new Frame();
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panel = new DropTargetPanel();
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frame.setTitle("MultiDataFlavorDropTest");
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frame.setLocation(10, 200);
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frame.add(panel);
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frame.pack();
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frame.setVisible(true);
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}
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public void start() throws Exception {
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Thread.sleep(FRAME_ACTIVATION_TIMEOUT);
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EventQueue.invokeAndWait(() -> {
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p = panel.getLocationOnScreen();
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d = panel.getSize();
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});
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String javaPath = System.getProperty("java.home", "");
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String command = javaPath + File.separator + "bin" +
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File.separator + "java -cp " + System.getProperty("test.classes", ".") +
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" MultiDataFlavorDropTest " +
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p.x + " " + p.y + " " + d.width + " " + d.height;
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Process process = Runtime.getRuntime().exec(command);
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returnCode = process.waitFor();
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InputStream errorStream = process.getErrorStream();
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int count = errorStream.available();
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if (count > 0) {
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byte[] b = new byte[count];
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errorStream.read(b);
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System.err.println("========= Child VM System.err ========");
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System.err.print(new String(b));
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System.err.println("======================================");
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}
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switch (returnCode) {
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case CODE_NOT_RETURNED:
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System.err.println("Child VM: failed to start");
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break;
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case CODE_OK:
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System.err.println("Child VM: normal termination");
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break;
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case CODE_FAILURE:
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System.err.println("Child VM: abnormal termination");
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break;
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}
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if (returnCode != CODE_OK) {
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throw new RuntimeException("The test failed.");
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}
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}
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}
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class DragSourceButton extends Button implements Serializable,
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DragGestureListener,
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DragSourceListener {
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final Transferable transferable;
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public DragSourceButton(Transferable t) {
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super("DragSourceButton");
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this.transferable = t;
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DragSource ds = DragSource.getDefaultDragSource();
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ds.createDefaultDragGestureRecognizer(this, DnDConstants.ACTION_COPY,
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this);
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}
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public void dragGestureRecognized(DragGestureEvent dge) {
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dge.startDrag(null, transferable, this);
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}
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public void dragEnter(DragSourceDragEvent dsde) {}
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public void dragExit(DragSourceEvent dse) {}
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public void dragOver(DragSourceDragEvent dsde) {}
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public void dragDropEnd(DragSourceDropEvent dsde) {}
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public void dropActionChanged(DragSourceDragEvent dsde) {}
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}
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class IntegerDataFlavor extends DataFlavor {
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private final int number;
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public IntegerDataFlavor(int n) throws ClassNotFoundException {
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super("application/integer-" + n +
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"; class=java.lang.Integer");
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this.number = n;
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}
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public int getNumber() {
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return number;
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}
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}
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class TransferableNumber implements Transferable {
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private int transferDataRequestCount = 0;
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public static final int NUM_DATA_FLAVORS = 5;
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static final DataFlavor[] supportedFlavors =
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new DataFlavor[NUM_DATA_FLAVORS];
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static {
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try {
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for (int i = 0; i < NUM_DATA_FLAVORS; i++) {
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supportedFlavors[i] =
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new IntegerDataFlavor(i);
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}
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} catch (ClassNotFoundException e) {
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e.printStackTrace();
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}
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}
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public DataFlavor[] getTransferDataFlavors() {
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return supportedFlavors;
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}
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public boolean isDataFlavorSupported(DataFlavor flavor) {
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if (flavor instanceof IntegerDataFlavor) {
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IntegerDataFlavor integerFlavor = (IntegerDataFlavor)flavor;
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int flavorNumber = integerFlavor.getNumber();
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if (flavorNumber >= 0 && flavorNumber < NUM_DATA_FLAVORS) {
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return true;
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}
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}
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return false;
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}
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public Object getTransferData(DataFlavor flavor)
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throws UnsupportedFlavorException {
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if (!isDataFlavorSupported(flavor)) {
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throw new UnsupportedFlavorException(flavor);
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}
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transferDataRequestCount++;
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if (transferDataRequestCount >= NUM_DATA_FLAVORS) {
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synchronized (this) {
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this.notifyAll();
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}
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}
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IntegerDataFlavor integerFlavor = (IntegerDataFlavor)flavor;
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return new Integer(integerFlavor.getNumber());
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}
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}
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class DragSourcePanel extends Panel {
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final Dimension preferredDimension = new Dimension(200, 200);
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public DragSourcePanel(Transferable t) {
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setLayout(new GridLayout(1, 1));
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add(new DragSourceButton(t));
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}
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public Dimension getPreferredSize() {
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return preferredDimension;
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}
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}
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class DropTargetPanel extends Panel implements DropTargetListener {
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final Dimension preferredDimension = new Dimension(200, 200);
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public DropTargetPanel() {
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setBackground(Color.green);
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setDropTarget(new DropTarget(this, this));
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setLayout(new GridLayout(1, 1));
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}
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public Dimension getPreferredSize() {
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return preferredDimension;
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}
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public void dragEnter(DropTargetDragEvent dtde) {
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dtde.acceptDrag(DnDConstants.ACTION_COPY);
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}
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public void dragExit(DropTargetEvent dte) {}
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public void dragOver(DropTargetDragEvent dtde) {
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dtde.acceptDrag(DnDConstants.ACTION_COPY);
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}
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public void drop(DropTargetDropEvent dtde) {
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DropTargetContext dtc = dtde.getDropTargetContext();
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if ((dtde.getSourceActions() & DnDConstants.ACTION_COPY) != 0) {
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dtde.acceptDrop(DnDConstants.ACTION_COPY);
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} else {
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dtde.rejectDrop();
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return;
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}
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removeAll();
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final List list = new List();
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add(list);
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Transferable t = dtde.getTransferable();
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DataFlavor[] dfs = t.getTransferDataFlavors();
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if (dfs.length != TransferableNumber.NUM_DATA_FLAVORS) {
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throw new RuntimeException("FAILED: Incorrect number of data flavors.");
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}
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for (int i = 0; i < dfs.length; i++) {
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DataFlavor flavor = dfs[i];
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Integer transferNumber = null;
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if (flavor.getRepresentationClass().equals(Integer.class)) {
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try {
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transferNumber = (Integer)t.getTransferData(flavor);
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} catch (Exception e) {
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e.printStackTrace();
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throw new RuntimeException("FAILED: Cannot get data: " +
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flavor.getMimeType());
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}
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}
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boolean supportedFlavor = false;
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for (int j = 0; j < TransferableNumber.NUM_DATA_FLAVORS; j++) {
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int number = (i + j) % TransferableNumber.NUM_DATA_FLAVORS;
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try {
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if (flavor.equals(new IntegerDataFlavor(number))) {
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if (!(new Integer(number).equals(transferNumber))) {
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throw new RuntimeException("FAILED: Invalid data \n" +
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"\tflavor : " + flavor +
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"\tdata : " + transferNumber);
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}
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supportedFlavor = true;
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break;
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}
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} catch (ClassNotFoundException cannotHappen) {
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}
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}
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if (!supportedFlavor) {
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throw new RuntimeException("FAILED: Invalid flavor: " + flavor);
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}
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list.add(transferNumber + ":" + flavor.getMimeType());
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}
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dtc.dropComplete(true);
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validate();
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}
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public void dropActionChanged(DropTargetDragEvent dtde) {}
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}
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