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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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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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russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
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test/jdk/java/awt/dnd/MissedDragEnterTest.java Normal file
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/*
* Copyright (c) 2000, 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import javax.swing.JFrame;
import javax.swing.JPanel;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.Point;
import java.awt.Robot;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.awt.dnd.DnDConstants;
import java.awt.dnd.DragGestureEvent;
import java.awt.dnd.DragGestureListener;
import java.awt.dnd.DragSource;
import java.awt.dnd.DragSourceDragEvent;
import java.awt.dnd.DragSourceDropEvent;
import java.awt.dnd.DragSourceEvent;
import java.awt.dnd.DragSourceListener;
import java.awt.dnd.DropTarget;
import java.awt.dnd.DropTargetContext;
import java.awt.dnd.DropTargetDragEvent;
import java.awt.dnd.DropTargetDropEvent;
import java.awt.dnd.DropTargetEvent;
import java.awt.dnd.DropTargetListener;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
/*
@test
@bug 4388802
@summary tests that dragEnter() is called on a DropTargetListener if its drop
target is associated with a component which initiated the drag
@key headful
@run main MissedDragEnterTest
*/
public class MissedDragEnterTest {
static final int FRAME_ACTIVATION_TIMEOUT = 1000;
volatile JFrame frame;
volatile DragSourceDropTargetPanel panel;
volatile Point p;
volatile Dimension d;
public static void main(String[] args) throws Exception {
MissedDragEnterTest test = new MissedDragEnterTest();
EventQueue.invokeAndWait(test::init);
try {
test.start();
} finally {
EventQueue.invokeAndWait(() -> {
if (test.frame != null) {
test.frame.dispose();
}
});
}
}
public void init() {
panel = new DragSourceDropTargetPanel();
frame = new JFrame();
frame.setTitle("MissedDragEnterTest");
frame.setLocation(200, 200);
frame.getContentPane().add(panel);
frame.pack();
frame.setVisible(true);
}
public void start() throws Exception {
Robot robot = new Robot();
robot.delay(FRAME_ACTIVATION_TIMEOUT);
EventQueue.invokeAndWait(() -> {
p = panel.getLocationOnScreen();
d = panel.getSize();
});
p.translate(d.width / 2, d.height / 2);
robot.mouseMove(p.x, p.y);
robot.keyPress(KeyEvent.VK_CONTROL);
robot.mousePress(InputEvent.BUTTON1_MASK);
for (int i = 0; i < d.width; i++) {
p.translate(1, 1);
robot.mouseMove(p.x, p.y);
robot.delay(10);
}
robot.mouseRelease(InputEvent.BUTTON1_MASK);
robot.keyRelease(KeyEvent.VK_CONTROL);
EventQueue.invokeAndWait(() -> {
if (!panel.getResult()) {
throw new RuntimeException("The test failed.");
}
});
}
}
class DragSourceDropTargetPanel extends JPanel implements DropTargetListener,
Serializable,
Transferable,
DragGestureListener,
DragSourceListener {
private final DataFlavor dataflavor =
new DataFlavor(JPanel.class, "panel");
private final Dimension preferredDimension = new Dimension(200, 100);
private boolean inside = false;
private boolean passed = true;
public DragSourceDropTargetPanel() {
setLayout(new FlowLayout());
DragSource ds = DragSource.getDefaultDragSource();
ds.createDefaultDragGestureRecognizer(this, DnDConstants.ACTION_COPY,
this);
setDropTarget(new DropTarget(this, this));
}
public void dragGestureRecognized(DragGestureEvent dge) {
dge.startDrag(null, this, this);
}
public void dragEnter(DragSourceDragEvent dsde) {}
public void dragExit(DragSourceEvent dse) {}
public void dragOver(DragSourceDragEvent dsde) {}
public void dragDropEnd(DragSourceDropEvent dsde) {}
public void dropActionChanged(DragSourceDragEvent dsde) {}
public Object getTransferData(DataFlavor flavor)
throws UnsupportedFlavorException, IOException {
if (!isDataFlavorSupported(flavor)) {
throw new UnsupportedFlavorException(flavor);
}
Object retObj = null;
ByteArrayOutputStream baoStream = new ByteArrayOutputStream();
ObjectOutputStream ooStream = new ObjectOutputStream(baoStream);
ooStream.writeObject(this);
ByteArrayInputStream baiStream = new ByteArrayInputStream(baoStream.toByteArray());
ObjectInputStream ois = new ObjectInputStream(baiStream);
try {
retObj = ois.readObject();
} catch (ClassNotFoundException e) {
e.printStackTrace();
throw new RuntimeException(e.toString());
}
return retObj;
}
public DataFlavor[] getTransferDataFlavors() {
return new DataFlavor[] { dataflavor };
}
public boolean isDataFlavorSupported(DataFlavor dflavor) {
return dataflavor.equals(dflavor);
}
public Dimension getPreferredSize() {
return preferredDimension;
}
public void dragEnter(DropTargetDragEvent dtde) {
inside = true;
}
public void dragExit(DropTargetEvent dte) {
if (!inside) {
passed = false;
inside = false;
throw new RuntimeException("dragEnter() is not called before dragExit()");
}
inside = false;
}
public void dragOver(DropTargetDragEvent dtde) {
if (!inside) {
passed = false;
throw new RuntimeException("dragEnter() is not called before dragOver()");
}
}
public void dropActionChanged(DropTargetDragEvent dtde) {
}
public void drop(DropTargetDropEvent dtde) {
DropTargetContext dtc = dtde.getDropTargetContext();
if ((dtde.getSourceActions() & DnDConstants.ACTION_COPY) != 0) {
dtde.acceptDrop(DnDConstants.ACTION_COPY);
} else {
dtde.rejectDrop();
}
DataFlavor[] dfs = dtde.getCurrentDataFlavors();
Component comp = null;
if (dfs != null && dfs.length >= 1) {
Transferable transfer = dtde.getTransferable();
try {
comp = (Component)transfer.getTransferData(dfs[0]);
} catch (Throwable e) {
e.printStackTrace();
dtc.dropComplete(false);
}
}
dtc.dropComplete(true);
add(comp);
}
public boolean getResult() {
return passed;
}
}