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/StackTraceElement/WithClassLoaderName.java
+++ b/test/jdk/java/lang/StackTraceElement/WithClassLoaderName.java
@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2016, 2017, 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 6479237
+ * @summary Basic test StackTraceElement with class loader names
+ * @library lib /lib/testlibrary /test/lib
+ * @modules jdk.compiler
+ * @build jdk.test.lib.compiler.CompilerUtils
+ *        m1/* WithClassLoaderName
+ * @run main/othervm m1/com.app.Main
+ * @run main/othervm WithClassLoaderName
+ */
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import jdk.test.lib.compiler.CompilerUtils;
+
+import com.app.Utils;
+
+public class WithClassLoaderName {
+    private static final String TEST_SRC = System.getProperty("test.src");
+    private static final String SRC_FILENAME = "WithClassLoaderName.java";
+
+    private static final Path SRC_DIR = Paths.get(TEST_SRC, "src");
+    private static final Path CLASSES_DIR = Paths.get("classes");
+    private static final String THROW_EXCEPTION_CLASS = "p.ThrowException";
+
+    public static void main(String... args) throws Exception {
+        /*
+         * Test the following frames both have the same class loader name "app"
+         *   com.app.Test::test
+         *   WithClassLoaderName::test
+         */
+        Utils.verify(WithClassLoaderName.class, "app", "main", SRC_FILENAME);
+
+        /*
+         * Test StackTraceElement for a class loaded by a named URLClassLoader
+         */
+        compile();
+        testURLClassLoader("myloader");
+
+        // loader name same as application class loader
+        testURLClassLoader("app");
+    }
+
+    private static void compile() throws Exception {
+        boolean rc = CompilerUtils.compile(SRC_DIR, CLASSES_DIR);
+        if (!rc) {
+            throw new RuntimeException("compilation fails");
+        }
+    }
+
+    public static void testURLClassLoader(String loaderName) throws Exception {
+        System.err.println("---- test URLClassLoader name: " + loaderName);
+
+        URL[] urls = new URL[] { CLASSES_DIR.toUri().toURL() };
+        ClassLoader parent = ClassLoader.getSystemClassLoader();
+        URLClassLoader loader = new URLClassLoader(loaderName, urls, parent);
+
+        Class<?> c = Class.forName(THROW_EXCEPTION_CLASS, true, loader);
+        Method method = c.getMethod("throwError");
+        try {
+            // invoke p.ThrowException::throwError
+            method.invoke(null);
+        } catch (InvocationTargetException x) {
+            Throwable e = x.getCause();
+            e.printStackTrace();
+
+            StackTraceElement[] stes = e.getStackTrace();
+            StackWalker.StackFrame[] frames = new StackWalker.StackFrame[] {
+                Utils.makeStackFrame(c, "throwError", "ThrowException.java"),
+                Utils.makeStackFrame(WithClassLoaderName.class, "testURLClassLoader",
+                                     SRC_FILENAME),
+                Utils.makeStackFrame(WithClassLoaderName.class, "main", SRC_FILENAME),
+            };
+
+            // p.ThrowException.throwError
+            Utils.checkFrame(loaderName, frames[0], stes[0]);
+            // skip reflection frames
+            int i = 1;
+            while (i < stes.length) {
+                String cn = stes[i].getClassName();
+                if (!cn.startsWith("java.lang.reflect.") &&
+                    !cn.startsWith("jdk.internal.reflect."))
+                    break;
+                i++;
+            }
+            // WithClassLoaderName.testURLClassLoader
+            Utils.checkFrame("app", frames[1], stes[i]);
+
+            // WithClassLoaderName.main
+            Utils.checkFrame("app", frames[2], stes[i+1]);
+
+        }
+    }
+
+}
+