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/math/BigDecimal/CompareToTests.java
+++ b/test/jdk/java/math/BigDecimal/CompareToTests.java
@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2006, 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 6473768
+ * @summary Tests of BigDecimal.compareTo
+ */
+import java.math.*;
+import static java.math.BigDecimal.*;
+
+public class CompareToTests {
+    private static int compareToTests() {
+        int failures = 0;
+
+        final BigDecimal MINUS_ONE = BigDecimal.ONE.negate();
+
+        // First operand, second operand, expected compareTo result
+        BigDecimal [][] testCases = {
+            // Basics
+            {valueOf(0),        valueOf(0),     ZERO},
+            {valueOf(0),        valueOf(1),     MINUS_ONE},
+            {valueOf(1),        valueOf(2),     MINUS_ONE},
+            {valueOf(2),        valueOf(1),     ONE},
+            {valueOf(10),       valueOf(10),    ZERO},
+
+            // Significands would compare differently than scaled value
+            {valueOf(2,1),      valueOf(2),     MINUS_ONE},
+            {valueOf(2,-1),     valueOf(2),     ONE},
+            {valueOf(1,1),      valueOf(2),     MINUS_ONE},
+            {valueOf(1,-1),     valueOf(2),     ONE},
+            {valueOf(5,-1),     valueOf(2),     ONE},
+
+            // Boundary and near boundary values
+            {valueOf(Long.MAX_VALUE),            valueOf(Long.MAX_VALUE), ZERO},
+            {valueOf(Long.MAX_VALUE).negate(),   valueOf(Long.MAX_VALUE), MINUS_ONE},
+
+            {valueOf(Long.MAX_VALUE-1),          valueOf(Long.MAX_VALUE), MINUS_ONE},
+            {valueOf(Long.MAX_VALUE-1).negate(), valueOf(Long.MAX_VALUE), MINUS_ONE},
+
+            {valueOf(Long.MIN_VALUE),            valueOf(Long.MAX_VALUE), MINUS_ONE},
+            {valueOf(Long.MIN_VALUE).negate(),   valueOf(Long.MAX_VALUE), ONE},
+
+            {valueOf(Long.MIN_VALUE+1),          valueOf(Long.MAX_VALUE), MINUS_ONE},
+            {valueOf(Long.MIN_VALUE+1).negate(), valueOf(Long.MAX_VALUE), ZERO},
+
+            {valueOf(Long.MAX_VALUE),            valueOf(Long.MIN_VALUE), ONE},
+            {valueOf(Long.MAX_VALUE).negate(),   valueOf(Long.MIN_VALUE), ONE},
+
+            {valueOf(Long.MAX_VALUE-1),          valueOf(Long.MIN_VALUE), ONE},
+            {valueOf(Long.MAX_VALUE-1).negate(), valueOf(Long.MIN_VALUE), ONE},
+
+            {valueOf(Long.MIN_VALUE),            valueOf(Long.MIN_VALUE), ZERO},
+            {valueOf(Long.MIN_VALUE).negate(),   valueOf(Long.MIN_VALUE), ONE},
+
+            {valueOf(Long.MIN_VALUE+1),          valueOf(Long.MIN_VALUE), ONE},
+            {valueOf(Long.MIN_VALUE+1).negate(), valueOf(Long.MIN_VALUE), ONE},
+        };
+
+        for (BigDecimal[] testCase : testCases) {
+            BigDecimal a = testCase[0];
+            BigDecimal a_negate = a.negate();
+            BigDecimal b = testCase[1];
+            BigDecimal b_negate = b.negate();
+            int expected = testCase[2].intValue();
+
+            failures += compareToTest(a,        b,         expected);
+            failures += compareToTest(a_negate, b_negate, -expected);
+        }
+
+
+        return failures;
+    }
+
+    private static int compareToTest(BigDecimal a, BigDecimal b, int expected) {
+        int result = a.compareTo(b);
+        int failed = (result==expected) ? 0 : 1;
+        if (failed == 1) {
+            System.err.println("(" + a + ").compareTo(" + b + ") => " + result +
+                               "\n\tExpected " + expected);
+        }
+        return failed;
+    }
+
+    public static void main(String argv[]) {
+        int failures = 0;
+
+        failures += compareToTests();
+
+        if (failures > 0) {
+            throw new RuntimeException("Incurred " + failures +
+                                       " failures while testing exact compareTo.");
+        }
+    }
+}