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/geom/AffineTransform/QuadRotInverseBug.java
+++ b/test/jdk/java/awt/geom/AffineTransform/QuadRotInverseBug.java
@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2000, 2018, 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 4388199
+ * @summary Tests inverse transform of an array of points with
+ *          shearing and translation components in the AffineTransform
+ */
+
+import java.awt.geom.AffineTransform;
+import java.awt.geom.NoninvertibleTransformException;
+import java.awt.geom.Point2D;
+
+/*
+ * The AffineTransform method
+ * inverseTransform(double[],int,double[],int,int) produces incorrect
+ * results for pure shearing transformations or for shearing and
+ * translation transformations.  The simpliest example of which is a
+ * rotation by 90 degrees.
+ */
+public class QuadRotInverseBug {
+    public static void main(String[] args) {
+        // First test a transform which rotates the coordinate system by 90
+        // degrees.
+        System.out.println("Using 90 degree rotation:");
+        AffineTransform xform = AffineTransform.getRotateInstance(Math.PI/2);
+        boolean test1failed = test(xform);
+        // Next test the transform with an added translation component
+        System.out.println("Using 90 degree rotation with translation:");
+        xform.translate(2,2);
+        boolean test2failed = test(xform);
+        if (test1failed || test2failed) {
+            throw new RuntimeException("test failed, see printout");
+        }
+    }
+
+    public static boolean test(AffineTransform xform) {
+        // Make needed arrays.
+        double[] originalPoint = new double[2];
+        double[] transformedPoint = new double[2];
+        double[] inverseFromOriginalXForm = new double[2];
+
+        Point2D originalPoint2D = new Point2D.Double();
+        Point2D transformedPoint2D = new Point2D.Double();
+        Point2D inverseFromOriginalPoint2D = new Point2D.Double();
+
+        // Make the original point to check (x,y)=(1,1).
+        originalPoint[0] = 1.;
+        originalPoint[1] = 1.;
+
+        try {
+
+            originalPoint2D.setLocation(originalPoint[0], originalPoint[1]);
+
+            // Make the transformed point.
+            xform.transform(originalPoint,0,transformedPoint,0,1);
+            xform.transform(originalPoint2D, transformedPoint2D);
+
+            // Transform the point back using the original transformation.
+            xform.inverseTransform(transformedPoint,0,
+                                   inverseFromOriginalXForm,0,1);
+            xform.inverseTransform(transformedPoint2D,
+                                   inverseFromOriginalPoint2D);
+        } catch (NoninvertibleTransformException e) {
+            throw new InternalError("transform wasn't invertible!");
+        }
+
+        System.out.println("Both points should be identical:");
+        System.out.println("Original Point: "+
+                           originalPoint[0]+" "+
+                           originalPoint[1]);
+        System.out.println("inverseTransform method used: "+
+                           inverseFromOriginalXForm[0]+" "+
+                           inverseFromOriginalXForm[1]);
+        System.out.println("Original Point2D: "+ originalPoint2D);
+        System.out.println("inverseTransform method used: "+
+                           inverseFromOriginalPoint2D);
+        return (originalPoint[0] != inverseFromOriginalXForm[0] ||
+                originalPoint[1] != inverseFromOriginalXForm[1] ||
+                !originalPoint2D.equals(inverseFromOriginalPoint2D));
+    }
+}