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/ConstructorUnscaledValue.java
+++ b/test/jdk/java/math/BigDecimal/ConstructorUnscaledValue.java
@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2022, 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 8282252
+ * @summary Test constructors of BigDecimal to replace BigInteger subclasses
+ */
+
+import java.math.*;
+
+public class ConstructorUnscaledValue {
+    public static void main(String... args) {
+        TestBigInteger tbi = new TestBigInteger(BigInteger.ONE);
+        // Create BigDecimal's using each of the three constructors
+        // with guards on the class of unscaledValue
+        BigDecimal[] values = {
+            new BigDecimal(tbi),
+            new BigDecimal(tbi, 2),
+            new BigDecimal(tbi, 3, MathContext.DECIMAL32),
+        };
+
+        for (var bd : values) {
+            BigInteger unscaledValue = bd.unscaledValue();
+            if (unscaledValue.getClass() != BigInteger.class) {
+                throw new RuntimeException("Bad class for unscaledValue");
+            }
+            if (!unscaledValue.equals(BigInteger.ONE)) {
+                throw new RuntimeException("Bad value for unscaledValue");
+            }
+        }
+    }
+
+    private static class TestBigInteger extends BigInteger {
+        public TestBigInteger(BigInteger bi) {
+            super(bi.toByteArray());
+        }
+
+        @Override
+        public String toString() {
+            return java.util.Arrays.toString(toByteArray());
+        }
+    }
+}