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.
2026-03-26 17:11:57 -04:00 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/jdk/java/awt/dnd/DragThresholdTest.java
+++ b/test/jdk/java/awt/dnd/DragThresholdTest.java
@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2003, 2024, 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 java.awt.EventQueue;
+import java.awt.Frame;
+import java.awt.Panel;
+import java.awt.Point;
+import java.awt.Robot;
+import java.awt.dnd.DnDConstants;
+import java.awt.dnd.DragGestureListener;
+import java.awt.dnd.DragSource;
+import java.awt.event.InputEvent;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseMotionAdapter;
+
+/*
+  @test
+  @key headful
+  @bug 4415175
+  @summary tests DragSource.getDragThreshold() and
+           that the AWT default drag gesture recognizers
+           honor the drag gesture motion threshold
+*/
+
+public class DragThresholdTest {
+    private static Frame frame;
+    private static Panel panel;
+    private static MouseEvent lastMouseEvent;
+    private static volatile boolean failed;
+    private static volatile Point startPoint;
+    private static volatile Point endPoint;
+
+    public static void main(String[] args) throws Exception {
+        try {
+            Robot robot = new Robot();
+
+            EventQueue.invokeAndWait(DragThresholdTest::createAndShowDnD);
+            robot.waitForIdle();
+            robot.delay(1000);
+
+            EventQueue.invokeAndWait(() -> {
+                Point p = panel.getLocationOnScreen();
+                p.translate(50, 50);
+                startPoint = p;
+                endPoint = new Point(p.x + 2 * DragSource.getDragThreshold(),
+                                     p.y + 2 * DragSource.getDragThreshold());
+            });
+
+            robot.mouseMove(startPoint.x, startPoint.y);
+            robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
+            for (Point p = new Point(startPoint); !p.equals(endPoint);
+                 p.translate(sign(endPoint.x - p.x),
+                             sign(endPoint.y - p.y))) {
+                robot.mouseMove(p.x, p.y);
+                robot.delay(100);
+            }
+            robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
+            robot.waitForIdle();
+            robot.delay(200);
+
+            if (failed) {
+                throw new RuntimeException("drag gesture recognized too early");
+            }
+        } finally {
+            EventQueue.invokeAndWait(() -> {
+                if (frame != null) {
+                    frame.dispose();
+                }
+            });
+        }
+    }
+
+    private static void createAndShowDnD() {
+        frame = new Frame("DragThresholdTest");
+        panel = new Panel();
+        // Mouse motion listener mml is added to the panel first.
+        // We rely on it that this listener will be called first.
+        panel.addMouseMotionListener(new MouseMotionAdapter() {
+            public void mouseDragged(MouseEvent evt) {
+                lastMouseEvent = evt;
+                System.out.println(evt);
+            }
+        });
+        frame.add(panel);
+        frame.setSize(200, 200);
+        frame.setLocationRelativeTo(null);
+
+        DragGestureListener dgl = dge -> {
+            Point dragOrigin = dge.getDragOrigin();
+            int diffx = Math.abs(dragOrigin.x - lastMouseEvent.getX());
+            int diffy = Math.abs(dragOrigin.y - lastMouseEvent.getY());
+            System.out.println("dragGestureRecognized(): " +
+                               " diffx=" + diffx + " diffy=" + diffy +
+                               " DragSource.getDragThreshold()="
+                               + DragSource.getDragThreshold());
+            if (diffx <= DragSource.getDragThreshold() &&
+                diffy <= DragSource.getDragThreshold()) {
+                failed = true;
+                System.out.println("drag gesture recognized too early!");
+            }
+        };
+
+        // Default drag gesture recognizer is a mouse motion listener.
+        // It is added to the panel second.
+        new DragSource().createDefaultDragGestureRecognizer(
+                panel,
+                DnDConstants.ACTION_COPY_OR_MOVE, dgl);
+        frame.setVisible(true);
+    }
+
+    private static int sign(int n) {
+        return Integer.compare(n, 0);
+    }
+}