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/reflect/Parameter/NoName.java
+++ b/test/jdk/java/lang/reflect/Parameter/NoName.java
@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2013, 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
+ * @run main NoName
+ * @summary The reflection API should report parameters with no name properly.
+ */
+import java.lang.Class;
+import java.lang.reflect.Method;
+import java.lang.reflect.Parameter;
+import java.lang.reflect.MalformedParametersException;
+import java.lang.ClassLoader;
+import java.lang.ClassNotFoundException;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+public class NoName {
+
+    private static final byte[] NoName_bytes = {
+        -54,-2,-70,-66,0,0,0,52,
+        0,18,10,0,3,0,15,7,
+        0,16,7,0,17,1,0,6,
+        60,105,110,105,116,62,1,0,
+        3,40,41,86,1,0,4,67,
+        111,100,101,1,0,15,76,105,
+        110,101,78,117,109,98,101,114,
+        84,97,98,108,101,1,0,1,
+        109,1,0,5,40,73,73,41,
+        86,1,0,16,77,101,116,104,
+        111,100,80,97,114,97,109,101,
+        116,101,114,115,1,0,0,1,
+        0,1,98,1,0,10,83,111,
+        117,114,99,101,70,105,108,101,
+        1,0,14,69,109,112,116,121,
+        78,97,109,101,46,106,97,118,
+        97,12,0,4,0,5,1,0,
+        9,69,109,112,116,121,78,97,
+        109,101,1,0,16,106,97,118,
+        97,47,108,97,110,103,47,79,
+        98,106,101,99,116,0,33,0,
+        2,0,3,0,0,0,0,0,
+        2,0,1,0,4,0,5,0,
+        1,0,6,0,0,0,29,0,
+        1,0,1,0,0,0,5,42,
+        -73,0,1,-79,0,0,0,1,
+        0,7,0,0,0,6,0,1,
+        0,0,0,1,0,1,0,8,
+        0,9,0,2,0,6,0,0,
+        0,25,0,0,0,3,0,0,
+        0,1,-79,0,0,0,1,0,
+        7,0,0,0,6,0,1,0,
+        0,0,2,
+        // Method Parameters attribute here
+        0,10,
+        // attribute_length
+        0,0,0,9,
+        // parameter_count
+        2,
+        // first parameter name
+        0,0,
+        // first parameter modifiers
+        0,0,
+        // second parameter name
+        0,12,
+        // second parameter modifiers
+        0,0,
+        // end attribute
+        0,1,0,13,0,0,0,2,0,14
+    };
+
+    private static class InMemoryClassLoader extends ClassLoader {
+        public Class<?> defineClass(String name, byte[] b) {
+            return defineClass(name, b, 0, b.length);
+        }
+    };
+
+    private static final InMemoryClassLoader loader = new InMemoryClassLoader();
+
+    private final Class<?> noName;
+
+    private NoName() throws ClassNotFoundException {
+        noName = loader.defineClass("EmptyName", NoName_bytes);
+    }
+
+    public static void main(String... args)
+        throws NoSuchMethodException, IOException, ClassNotFoundException {
+        new NoName().run();
+    }
+
+    public void run() throws NoSuchMethodException {
+        final Class<?> cls = noName;
+        System.err.println("Trying " + cls);
+        final Method method = cls.getMethod("m", int.class, int.class);
+        final Parameter[] params = method.getParameters();
+        System.err.println("Name " + params[0].getName());
+        System.err.println("Name " + params[1].getName());
+    }
+
+}