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/CustomDragCursorTest.java
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test/jdk/java/awt/dnd/CustomDragCursorTest.java
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/*
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* Copyright (c) 2001, 2024, 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.Component;
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import java.awt.Cursor;
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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.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.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.Serializable;
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/*
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* @test
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* @bug 4451328
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* @summary tests that a custom drag cursor is not changed
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to the default drag cursor
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* @key headful
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* @run main CustomDragCursorTest
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*/
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public class CustomDragCursorTest {
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private static Frame frame;
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private static final DragSourcePanel dragSourcePanel = new DragSourcePanel();
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private static final DropTargetPanel dropTargetPanel = new DropTargetPanel();
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private static volatile Point srcPoint;
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private static volatile Point dstPoint;
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private static volatile boolean passed = true;
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public static void main(String[] args) throws Exception {
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try {
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Robot robot = new Robot();
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EventQueue.invokeAndWait(CustomDragCursorTest::createAndShowUI);
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robot.waitForIdle();
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robot.delay(1000);
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EventQueue.invokeAndWait(() -> {
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Point p = dragSourcePanel.getLocationOnScreen();
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Dimension d = dragSourcePanel.getSize();
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p.translate(d.width / 2, d.height / 2);
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srcPoint = p;
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p = dropTargetPanel.getLocationOnScreen();
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d = dropTargetPanel.getSize();
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p.translate(d.width / 2, d.height / 2);
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dstPoint = p;
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});
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robot.mouseMove(srcPoint.x, srcPoint.y);
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robot.keyPress(KeyEvent.VK_CONTROL);
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robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
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for (; !srcPoint.equals(dstPoint);
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srcPoint.translate(sign(dstPoint.x - srcPoint.x),
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sign(dstPoint.y - srcPoint.y))) {
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robot.mouseMove(srcPoint.x, srcPoint.y);
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robot.delay(10);
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}
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robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
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robot.keyRelease(KeyEvent.VK_CONTROL);
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robot.waitForIdle();
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robot.delay(1000);
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if (!passed) {
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throw new RuntimeException("Custom drag cursor changed to default.");
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}
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} finally {
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EventQueue.invokeAndWait(() -> {
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if (frame != null) {
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frame.dispose();
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}
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});
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}
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}
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private static void createAndShowUI() {
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frame = new Frame("CustomDragCursorTest");
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frame.setLayout(new GridLayout(2, 1));
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frame.add(dragSourcePanel);
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frame.add(dropTargetPanel);
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frame.setLocationRelativeTo(null);
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frame.setSize(300, 400);
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frame.setVisible(true);
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}
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public static void failed() {
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passed = false;
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}
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private static int sign(int n) {
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return Integer.compare(n, 0);
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}
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private static class DragSourceButton extends Button implements Serializable,
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Transferable,
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DragGestureListener,
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DragSourceListener {
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private final DataFlavor dataflavor =
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new DataFlavor(Button.class, "DragSourceButton");
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private final Cursor dragCursor = new Cursor(Cursor.HAND_CURSOR);
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public DragSourceButton() {
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this("DragSourceButton");
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}
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public DragSourceButton(String str) {
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super(str);
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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(dragCursor, this, this);
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}
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public void dragEnter(DragSourceDragEvent dsde) {
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if (!dragCursor.equals(dsde.getDragSourceContext().getCursor())) {
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CustomDragCursorTest.failed();
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}
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}
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public void dragExit(DragSourceEvent dse) {
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if (!dragCursor.equals(dse.getDragSourceContext().getCursor())) {
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CustomDragCursorTest.failed();
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}
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}
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public void dragOver(DragSourceDragEvent dsde) {
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if (!dragCursor.equals(dsde.getDragSourceContext().getCursor())) {
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CustomDragCursorTest.failed();
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}
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}
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public void dragDropEnd(DragSourceDropEvent dsde) {
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if (!dragCursor.equals(dsde.getDragSourceContext().getCursor())) {
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CustomDragCursorTest.failed();
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}
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}
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public void dropActionChanged(DragSourceDragEvent dsde) {
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if (!dragCursor.equals(dsde.getDragSourceContext().getCursor())) {
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CustomDragCursorTest.failed();
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}
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}
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public Object getTransferData(DataFlavor flavor)
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throws UnsupportedFlavorException, IOException {
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if (!isDataFlavorSupported(flavor)) {
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throw new UnsupportedFlavorException(flavor);
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}
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Object retObj;
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ByteArrayOutputStream baoStream = new ByteArrayOutputStream();
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ObjectOutputStream ooStream = new ObjectOutputStream(baoStream);
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ooStream.writeObject(this);
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ByteArrayInputStream baiStream = new ByteArrayInputStream(baoStream.toByteArray());
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ObjectInputStream ois = new ObjectInputStream(baiStream);
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try {
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retObj = ois.readObject();
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} catch (ClassNotFoundException e) {
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e.printStackTrace();
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throw new RuntimeException(e.toString());
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}
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return retObj;
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}
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public DataFlavor[] getTransferDataFlavors() {
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return new DataFlavor[] { dataflavor };
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}
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public boolean isDataFlavorSupported(DataFlavor dflavor) {
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return dataflavor.equals(dflavor);
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}
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}
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private static class DragSourcePanel extends Panel {
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final Dimension preferredDimension = new Dimension(200, 100);
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public DragSourcePanel() {
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setLayout(new GridLayout(1, 1));
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add(new DragSourceButton());
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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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private static class DropTargetPanel extends Panel implements DropTargetListener {
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final Dimension preferredDimension = new Dimension(200, 100);
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public DropTargetPanel() {
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setDropTarget(new DropTarget(this, this));
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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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public void dragExit(DropTargetEvent dte) {}
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public void dragOver(DropTargetDragEvent dtde) {}
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public void dropActionChanged(DropTargetDragEvent dtde) {}
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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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}
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DataFlavor[] dfs = dtde.getCurrentDataFlavors();
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Component comp = null;
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if(dfs != null && dfs.length >= 1) {
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Transferable transfer = dtde.getTransferable();
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try {
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comp = (Component)transfer.getTransferData(dfs[0]);
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} catch (Throwable e) {
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e.printStackTrace();
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dtc.dropComplete(false);
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}
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}
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dtc.dropComplete(true);
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add(comp);
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}
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}
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}
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