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/lang/Class/ForPrimitiveName.java
+++ b/test/jdk/java/lang/Class/ForPrimitiveName.java
@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 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
+ * @summary Test Class.forPrimitiveName
+ * @bug 6361826
+ */
+
+import java.util.*;
+
+public class ForPrimitiveName {
+    public static void main(String... args) {
+        positiveTests();
+        negativeTests();
+    }
+
+    private static final void positiveTests() {
+
+        /**
+         * immutable table mapping primitive type names to corresponding
+         * class objects
+         */
+        final Map<String, Class<?>> primClasses =
+            Map.of("boolean", boolean.class,
+                   "byte",    byte.class,
+                   "char",    char.class,
+                   "short",   short.class,
+                   "int",     int.class,
+                   "long",    long.class,
+                   "float",   float.class,
+                   "double",  double.class,
+                   "void",    void.class);
+
+        for (var entry : primClasses.entrySet()) {
+            String key = entry.getKey();
+            Class<?> expected = entry.getValue();
+            Class<?> result = Class.forPrimitiveName(key);
+
+            // For java.lang.Class, equality is identity.
+            if (result != expected) {
+                throw new RuntimeException("Unexpected mapping for " + key);
+            }
+        }
+    }
+
+    private static final void negativeTests() {
+        final List<String> expectedNull =
+            List.of("java.lang.Object",
+                    "java.lang.String",
+
+                    // descriptor string names for primitive types
+                    "Z", // boolean
+                    "B", // byte
+                    "C", // char
+                    "D", // double
+                    "F", // float
+                    "I", // int
+                    "L", // long
+                    "S", // short
+                    "V", // void
+
+                    // Wrapper classes
+                    "java.lang.Byte",
+                    "java.lang.Boolean",
+                    "java.lang.Character",
+                    "java.lang.Short",
+                    "java.lang.Integer",
+                    "java.lang.Long",
+                    "java.lang.Float",
+                    "java.lang.Double",
+                    "java.lang.Void");
+        for (var entry : expectedNull) {
+            Class<?> result = Class.forPrimitiveName(entry);
+            if (result != null ) {
+                throw new RuntimeException("Unexpected nonnull result for " +
+                                           entry);
+            }
+        }
+    }
+}
+
+