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.

test/jdk/java/awt/event/ClickEventsTest.java

@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2000, 2025, 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 4087762
+  @summary Sometimes click events are missing when you click the color components alternately.
+  @key headful
+  @library /test/jdk/java/awt/regtesthelpers
+  @build Util
+  @run main ClickEventsTest
+*/
+
+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.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.util.concurrent.BrokenBarrierException;
+import java.util.concurrent.CyclicBarrier;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+import test.java.awt.regtesthelpers.Util;
+
+public class ClickEventsTest {
+    static Frame frame;
+    static ColorComponent redComponent;
+    static ColorComponent blueComponent;
+    static Robot robot;
+
+    public static void main(String[] args) throws Exception {
+        try {
+            EventQueue.invokeAndWait(ClickEventsTest::createAndShowGUI);
+            test();
+        } finally {
+            EventQueue.invokeAndWait(() -> {
+                if (frame != null) {
+                    frame.dispose();
+                }
+            });
+        }
+    }
+
+    private static void test() throws Exception {
+        robot = new Robot();
+        robot.waitForIdle();
+        robot.delay(500);
+
+        for (int i = 0; i < 10; i++) {
+            redComponent.clickAndCheck();
+            blueComponent.clickAndCheck();
+        }
+    }
+
+    private static void createAndShowGUI() {
+        frame = new Frame("ClickEventsTest");
+        redComponent = new ColorComponent(Color.RED);
+        blueComponent = new ColorComponent(Color.BLUE);
+
+        frame.add("North", redComponent);
+        frame.add("South", blueComponent);
+
+        frame.pack();
+        frame.setLocationRelativeTo(null);
+        frame.setVisible(true);
+    }
+
+    static class ColorComponent extends Component {
+        public Color myColor;
+
+        private final CyclicBarrier barrier = new CyclicBarrier(2);
+
+        private final MouseAdapter mouseAdapter = new MouseAdapter() {
+            public void mouseClicked(MouseEvent event) {
+                System.out.println(myColor + " area clicked");
+                try {
+                    barrier.await(1, TimeUnit.SECONDS);
+                } catch (InterruptedException | BrokenBarrierException | TimeoutException e) {
+                    throw new RuntimeException(e);
+                }
+            }
+        };
+
+        public ColorComponent(Color c) {
+            myColor = c;
+            addMouseListener(mouseAdapter);
+        }
+
+        public Dimension getPreferredSize() {
+            return new Dimension(200, 100);
+        }
+
+        public void paint(Graphics g) {
+            g.setColor(myColor);
+            g.fillRect(0, 0, 200, 100);
+        }
+
+        public void clickAndCheck() throws InterruptedException, BrokenBarrierException {
+            barrier.reset();
+            Util.clickOnComp(this, robot);
+            try {
+                barrier.await(1, TimeUnit.SECONDS);
+            } catch (TimeoutException e) {
+                throw new RuntimeException(myColor + " was not clicked");
+            }
+        }
+    }
+}