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/image/multiresolution/MultiDisplayTest.java

@@ -0,0 +1,169 @@
+/*
+ * Copyright (c) 2016, 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.Color;
+import java.awt.Dialog;
+import java.awt.Font;
+import java.awt.Frame;
+import java.awt.Graphics;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+import java.awt.image.BaseMultiResolutionImage;
+import java.awt.image.BufferedImage;
+
+import javax.swing.JButton;
+
+import jdk.test.lib.Platform;
+import jtreg.SkippedException;
+
+/*
+ * @test
+ * @bug 8142861 8143062 8147016
+ * @library /java/awt/regtesthelpers /test/lib
+ * @build PassFailJFrame jdk.test.lib.Platform
+ * @requires (os.family == "windows" | os.family == "mac")
+ * @summary Check if multiresolution image behaves properly
+ *         on HiDPI + non-HiDPI display pair.
+ * @run main/manual MultiDisplayTest
+ */
+
+public class MultiDisplayTest {
+    private static final String INSTRUCTIONS =
+            """
+             The test requires two-display configuration, where
+
+             - 1st display is operating in HiDPI mode;
+             - 2nd display is non-HiDPI.
+
+             In other cases please simply push "Pass".
+
+             To run test please push "Start".
+
+             Then drag parent / child to different displays and check
+             that the proper image is shown for every window
+             (must be "black 1x" for non-HiDPI and "blue 2x" for HiDPI).
+
+             Please try to drag both parent and child,
+             do it fast several times and check if no artefacts occur.
+
+             Try to switch display resolution (high to low and back).
+
+             For Mac OS X please check also the behavior for
+             translucent windows appearing on the 2nd (non-active) display
+             and Mission Control behavior.
+
+             Close the Child & Parent windows.
+
+             In case if no issues occur please push "Pass", otherwise "Fail".
+            """;
+
+    private static final int W = 200;
+    private static final int H = 200;
+
+    private static final BaseMultiResolutionImage IMG =
+        new BaseMultiResolutionImage(new BufferedImage[]{
+        generateImage(1, Color.BLACK), generateImage(2, Color.BLUE)});
+
+    public static void main(String[] args) throws Exception {
+        if (!checkOS()) {
+            throw new SkippedException("Invalid OS." +
+                    "Please run test on either Windows or MacOS");
+        }
+        PassFailJFrame
+                .builder()
+                .title("MultiDisplayTest Instructions")
+                .instructions(INSTRUCTIONS)
+                .rows((int) INSTRUCTIONS.lines().count() + 2)
+                .columns(40)
+                .splitUIBottom(MultiDisplayTest::createAndShowGUI)
+                .build()
+                .awaitAndCheck();
+    }
+
+    public static JButton createAndShowGUI() {
+        JButton b = new JButton("Start");
+        b.addActionListener(e -> {
+            ParentFrame p = new ParentFrame();
+            new ChildDialog(p);
+        });
+        return b;
+    }
+
+    private static boolean checkOS() {
+        return Platform.isWindows() || Platform.isOSX();
+    }
+
+    private static BufferedImage generateImage(int scale, Color c) {
+        BufferedImage image = new BufferedImage(
+            scale * W, scale * H, BufferedImage.TYPE_INT_RGB);
+        Graphics g = image.getGraphics();
+        g.setColor(c);
+        g.fillRect(0, 0, scale * W, scale * H);
+
+        g.setColor(Color.WHITE);
+        Font f = g.getFont();
+        g.setFont(new Font(f.getName(), Font.BOLD, scale * 48));
+        g.drawChars((scale + "X").toCharArray(), 0, 2,
+                scale * W / 2, scale * H / 2);
+        return image;
+    }
+
+    private static class ParentFrame extends Frame {
+        public ParentFrame() {
+            addWindowListener(new WindowAdapter() {
+                @Override
+                public void windowClosing(WindowEvent e) { dispose(); }
+            });
+            setSize(W, H);
+            setLocation(50, 50);
+            setTitle("parent");
+            setResizable(false);
+            setVisible(true);
+        }
+
+        @Override
+        public void paint(Graphics gr) {
+            gr.drawImage(IMG, 0, 0, this);
+        }
+    }
+
+    private static class ChildDialog extends Dialog {
+        public ChildDialog(Frame f) {
+            super(f);
+            addWindowListener(new WindowAdapter() {
+                @Override
+                public void windowClosing(WindowEvent e) { dispose(); }
+            });
+            setSize(W, H);
+            setTitle("child");
+            setResizable(false);
+            setModal(true);
+            setVisible(true);
+        }
+
+        @Override
+        public void paint(Graphics gr) {
+            gr.drawImage(IMG, 0, 0, this);
+        }
+    }
+}