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/Graphics/DrawNullStringTest.java

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+/*
+ * 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 4166809
+ * @summary Make sure NPE is thrown when calling
+ *     Graphics.drawString(null, int, int)
+ * @run main DrawNullStringTest
+ */
+import java.awt.image.BufferedImage;
+import java.awt.EventQueue;
+import java.awt.Graphics;
+
+public class DrawNullStringTest {
+    static String s = null;
+    static boolean passed = false;
+
+    public static void main(String[] args) throws Exception {
+        EventQueue.invokeAndWait(() -> {
+            BufferedImage img = new BufferedImage(100, 100,
+                                                  BufferedImage.TYPE_INT_RGB);
+            Graphics g = (Graphics)(img.getGraphics());
+            try {
+                g.drawString(s, 30, 30);
+            } catch (NullPointerException npe) {
+                System.out.println("NPE thrown - test passes");
+                passed = true;
+            }
+
+            if (passed == false) {
+                throw new Error("No Exception was thrown - should be an NPE");
+            }
+        });
+    }
+
+ }// class DrawNullStringTest