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/LightweightComponent/LightweightDragTest.java
+++ b/test/jdk/java/awt/LightweightComponent/LightweightDragTest.java
@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 1999, 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.
+ */
+
+/*
+  @test
+  @bug 4050138
+  @summary Lightweight components: Enter/Exit mouse events
+  incorrectly reported during drag
+  @key headful
+  @run main LightweightDragTest
+*/
+
+import java.awt.AWTException;
+import java.awt.AWTEvent;
+import java.awt.BorderLayout;
+import java.awt.Color;
+import java.awt.Component;
+import java.awt.Dimension;
+import java.awt.EventQueue;
+import java.awt.Frame;
+import java.awt.Graphics;
+import java.awt.Robot;
+import java.awt.event.InputEvent;
+import java.awt.event.MouseEvent;
+
+public class LightweightDragTest {
+    MyComponent c,c2;
+    static Frame frame;
+    volatile int x = 0;
+    volatile int y = 0;
+    volatile int x2 = 0;
+    volatile int y2 = 0;
+
+    public static void main(String[] args) throws Exception {
+        LightweightDragTest test = new LightweightDragTest();
+        try {
+            EventQueue.invokeAndWait(() -> {
+                test.init();
+            });
+            test.start();
+        } finally {
+            EventQueue.invokeAndWait(() -> {
+                if (frame != null) {
+                    frame.dispose();
+                }
+            });
+        }
+    }
+
+    public void init() {
+        frame = new Frame("Test LightWeight Component Drag");
+        c = new MyComponent();
+        c2 = new MyComponent();
+        frame.add(c, BorderLayout.WEST);
+        frame.add(c2, BorderLayout.EAST);
+        frame.setSize(250, 200);
+        frame.setLocationRelativeTo(null);
+        frame.setVisible(true);
+    }
+
+   public void start() throws Exception {
+       Robot rb;
+       try {
+           rb = new Robot();
+       } catch (AWTException e) {
+           throw new Error("Could not create robot");
+       }
+       rb.setAutoDelay(10);
+       rb.delay(1000);
+       rb.waitForIdle();
+
+       EventQueue.invokeAndWait(() -> {
+           x = c.getLocationOnScreen().x + c.getWidth() / 2;
+           y = c.getLocationOnScreen().y + c.getHeight() / 2;
+           x2 = c2.getLocationOnScreen().x + c2.getWidth() / 2;
+           y2 = c2.getLocationOnScreen().y + c2.getHeight() / 2;
+       });
+       int xt = x;
+       int yt = y;
+       rb.mouseMove(xt, yt);
+       rb.mousePress(InputEvent.BUTTON1_MASK);
+       EventQueue.invokeAndWait(() -> {
+           c.isInside = true;
+           c2.isInside = false;
+       });
+       // drag
+       while (xt != x2 || yt != y2) {
+           if (x2 > xt) ++xt;
+           if (x2 < xt) --xt;
+           if (y2 > yt) ++yt;
+           if (y2 < yt) --yt;
+           rb.mouseMove(xt, yt);
+       }
+       rb.mouseRelease(InputEvent.BUTTON1_MASK);
+       EventQueue.invokeAndWait(() -> {
+           if (c.isInside || !c2.isInside) {
+               throw new Error("Test failed: mouse events did not arrive");
+           }
+       });
+   }
+}
+
+class MyComponent extends Component {
+    public boolean isInside;
+    public void paint(Graphics g) {
+        g.setColor(getBackground());
+        g.fillRect(0,0,getSize().width,getSize().height);
+    }
+    public MyComponent() {
+        enableEvents(AWTEvent.MOUSE_EVENT_MASK);
+        setBackground(Color.blue);
+    }
+
+    public Dimension getPreferredSize() {
+        return new Dimension(100, 100);
+    }
+
+    public void processEvent(AWTEvent e) {
+        int eventID = e.getID();
+        if ((eventID == MouseEvent.MOUSE_ENTERED)) {
+            setBackground(Color.red);
+            repaint();
+            isInside = true;
+        } else if (eventID == MouseEvent.MOUSE_EXITED) {
+            setBackground(Color.blue);
+            repaint();
+            isInside = false;
+        }
+        super.processEvent(e);
+    }
+}