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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283
test/jdk/java/awt/dnd/IntraJVMGetDropSuccessTest.java
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test/jdk/java/awt/dnd/IntraJVMGetDropSuccessTest.java
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/*
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* Copyright (c) 2002, 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.AWTEvent;
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import java.awt.Canvas;
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import java.awt.Color;
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import java.awt.Component;
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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.Point;
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import java.awt.Robot;
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import java.awt.datatransfer.StringSelection;
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import java.awt.datatransfer.Transferable;
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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.DragGestureRecognizer;
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import java.awt.dnd.DragSource;
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import java.awt.dnd.DragSourceAdapter;
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import java.awt.dnd.DragSourceDropEvent;
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import java.awt.dnd.DropTarget;
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import java.awt.dnd.DropTargetAdapter;
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import java.awt.dnd.DropTargetDropEvent;
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import java.awt.dnd.DropTargetListener;
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import java.awt.event.AWTEventListener;
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import java.awt.event.InputEvent;
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import java.awt.event.MouseEvent;
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/*
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@test
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@bug 4658741
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@summary verifies that getDropSuccess() returns correct value for intra-JVM DnD
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@key headful
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@run main IntraJVMGetDropSuccessTest
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*/
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public class IntraJVMGetDropSuccessTest implements AWTEventListener {
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static final Object SYNC_LOCK = new Object();
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static final int FRAME_ACTIVATION_TIMEOUT = 3000;
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static final int MOUSE_RELEASE_TIMEOUT = 1000;
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static class DragSourceDropListener extends DragSourceAdapter {
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private boolean finished = false;
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private boolean dropSuccess = false;
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public void reset() {
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finished = false;
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dropSuccess = false;
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}
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public boolean isDropFinished() {
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return finished;
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}
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public boolean getDropSuccess() {
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return dropSuccess;
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}
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public void dragDropEnd(DragSourceDropEvent dsde) {
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finished = true;
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dropSuccess = dsde.getDropSuccess();
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synchronized (SYNC_LOCK) {
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SYNC_LOCK.notifyAll();
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}
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}
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}
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static class ChildCanvas extends Canvas {
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private final Dimension preferredDimension = new Dimension(100, 200);
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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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volatile Frame frame;
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volatile Canvas canvas1;
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volatile Canvas canvas2;
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volatile Canvas canvas3;
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volatile Point p;
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volatile Dimension d;
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volatile Component c;
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volatile DragSourceDropListener dragSourceListener;
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volatile DragSource dragSource;
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volatile Transferable transferable;
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volatile DragGestureListener dragGestureListener;
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volatile DragGestureRecognizer dragGestureRecognizer;
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volatile DropTargetListener dropTargetListener;
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volatile DropTarget dropTarget;
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Component clickedComponent = null;
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public static void main(String[] args) throws Exception {
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IntraJVMGetDropSuccessTest test = new IntraJVMGetDropSuccessTest();
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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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public void init() {
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frame = new Frame();
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canvas1 = new ChildCanvas();
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canvas2 = new ChildCanvas();
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canvas3 = new ChildCanvas();
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dragSourceListener = new DragSourceDropListener();
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dragSource = DragSource.getDefaultDragSource();
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transferable = new StringSelection("TEXT");
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dragGestureListener = new DragGestureListener() {
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public void dragGestureRecognized(DragGestureEvent dge) {
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dge.startDrag(null, transferable, dragSourceListener);
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}
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};
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dragGestureRecognizer =
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dragSource.createDefaultDragGestureRecognizer(canvas2, DnDConstants.ACTION_COPY,
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dragGestureListener);
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dropTargetListener = new DropTargetAdapter() {
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public void drop(DropTargetDropEvent dtde) {
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dtde.acceptDrop(DnDConstants.ACTION_COPY);
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dtde.dropComplete(true);
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}
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};
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dropTarget = new DropTarget(canvas3, dropTargetListener);
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canvas1.setBackground(Color.red);
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canvas2.setBackground(Color.yellow);
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canvas3.setBackground(Color.green);
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frame.setTitle("IntraJVMGetDropSuccessTest");
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frame.setLocation(100, 100);
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frame.setLayout(new GridLayout(1, 3));
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frame.getToolkit().addAWTEventListener(this, AWTEvent.MOUSE_EVENT_MASK);
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frame.add(canvas1);
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frame.add(canvas2);
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frame.add(canvas3);
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frame.pack();
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frame.setVisible(true);
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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 start() throws Exception {
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Robot robot = new Robot();
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robot.delay(FRAME_ACTIVATION_TIMEOUT);
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final Point srcPoint = getCenterLocationOnScreen(canvas2);
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if (!pointInComponent(robot, srcPoint, canvas2)) {
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System.err.println("WARNING: Couldn't locate " + canvas2);
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return;
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}
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final Point dstPoint1 = getCenterLocationOnScreen(canvas1);
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if (!pointInComponent(robot, dstPoint1, canvas1)) {
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System.err.println("WARNING: Couldn't locate " + canvas1);
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return;
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}
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final Point dstPoint2 = getCenterLocationOnScreen(canvas3);
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if (!pointInComponent(robot, dstPoint2, canvas3)) {
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System.err.println("WARNING: Couldn't locate " + canvas3);
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return;
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}
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robot.waitForIdle();
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test(robot, srcPoint, dstPoint1, false);
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test(robot, srcPoint, dstPoint2, true);
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test(robot, srcPoint, dstPoint1, false);
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}
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public Point getCenterLocationOnScreen(Component c) throws Exception {
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EventQueue.invokeAndWait(() -> {
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p = c.getLocationOnScreen();
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d = c.getSize();
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});
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p.translate(d.width / 2, d.height / 2);
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return p;
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}
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public void test(Robot robot, Point src, Point dst, boolean success)
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throws InterruptedException {
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dragSourceListener.reset();
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robot.mouseMove(src.x, src.y);
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robot.mousePress(InputEvent.BUTTON1_MASK);
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for (Point p = new Point(src); !p.equals(dst);
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p.translate(sign(dst.x - p.x),
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sign(dst.y - p.y))) {
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robot.mouseMove(p.x, p.y);
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robot.delay(50);
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}
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synchronized (SYNC_LOCK) {
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robot.mouseRelease(InputEvent.BUTTON1_MASK);
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SYNC_LOCK.wait();
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}
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if (!dragSourceListener.isDropFinished()) {
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throw new RuntimeException("Drop not finished");
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}
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if (dragSourceListener.getDropSuccess() != success) {
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throw new RuntimeException("getDropSuccess() returned wrong value:"
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+ dragSourceListener.getDropSuccess());
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}
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}
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public void reset() throws Exception {
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EventQueue.invokeAndWait(() -> {
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clickedComponent = null;
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});
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}
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public void eventDispatched(AWTEvent e) {
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if (e.getID() == MouseEvent.MOUSE_RELEASED) {
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clickedComponent = (Component)e.getSource();
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synchronized (SYNC_LOCK) {
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SYNC_LOCK.notifyAll();
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}
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}
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}
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boolean pointInComponent(Robot robot, Point p, Component comp)
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throws Exception {
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robot.waitForIdle();
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reset();
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robot.mouseMove(p.x, p.y);
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robot.mousePress(InputEvent.BUTTON1_MASK);
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synchronized (SYNC_LOCK) {
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robot.mouseRelease(InputEvent.BUTTON1_MASK);
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SYNC_LOCK.wait(MOUSE_RELEASE_TIMEOUT);
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}
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EventQueue.invokeAndWait(() -> {
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c = clickedComponent;
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while (c != null && c != comp) {
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c = c.getParent();
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}
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});
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return c == comp;
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}
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}
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