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/net/URLClassLoader/ClassLoad.java
+++ b/test/jdk/java/net/URLClassLoader/ClassLoad.java
@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 1998, 2019, 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 4151665
+ * @modules jdk.httpserver
+ * @library /test/lib
+ * @summary Test for FileNotFoundException when loading bogus class
+ */
+
+import java.io.InputStream;
+import java.io.IOException;
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.URL;
+import java.net.URLClassLoader;
+import com.sun.net.httpserver.HttpExchange;
+import com.sun.net.httpserver.HttpHandler;
+import com.sun.net.httpserver.HttpServer;
+import jdk.test.lib.net.URIBuilder;
+
+public class ClassLoad {
+     public static void main(String[] args) throws Exception {
+         boolean error = true;
+
+         // Start a dummy server to return 404
+         HttpServer server = HttpServer.create();
+         server.bind(new InetSocketAddress(
+                 InetAddress.getLoopbackAddress(), 0), 0);
+         HttpHandler handler = new HttpHandler() {
+             public void handle(HttpExchange t) throws IOException {
+                 InputStream is = t.getRequestBody();
+                 while (is.read() != -1);
+                 t.sendResponseHeaders (404, -1);
+                 t.close();
+             }
+         };
+         server.createContext("/", handler);
+         server.start();
+
+         // Client request
+         try {
+             URL url = URIBuilder.newBuilder()
+                     .scheme("http")
+                     .loopback()
+                     .port(server.getAddress().getPort())
+                     .toURL();
+             String name = args.length >= 2 ? args[1] : "foo.bar.Baz";
+             ClassLoader loader = new URLClassLoader(new URL[] { url });
+             System.out.println(url);
+             Class c = loader.loadClass(name);
+             System.out.println("Loaded class \"" + c.getName() + "\".");
+         } catch (ClassNotFoundException ex) {
+             System.out.println(ex);
+             error = false;
+         } finally {
+             server.stop(0);
+         }
+         if (error)
+             throw new RuntimeException("No ClassNotFoundException generated");
+    }
+}