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.

test/jdk/java/net/HttpURLConnection/SetAuthenticator/HTTPTestClient.java

@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2016, 2026, 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.
+ */
+
+import java.io.IOException;
+import java.net.Authenticator;
+import java.net.BindException;
+import java.net.HttpURLConnection;
+import java.net.InetSocketAddress;
+import java.net.Proxy;
+import java.net.URL;
+import java.time.Duration;
+import javax.net.ssl.HttpsURLConnection;
+
+/**
+ * A simple Http client that connects to the HTTPTestServer.
+ * @author danielfuchs
+ */
+public class HTTPTestClient extends HTTPTest {
+
+    public static final long DELAY_BEFORE_RETRY = 2500; // milliseconds
+
+    public static void connect(HttpProtocolType protocol,
+                               HTTPTestServer server,
+                               HttpAuthType authType,
+                               Authenticator auth)
+            throws IOException {
+        try {
+            doConnect(protocol, server, authType, auth);
+        } catch (BindException ex) {
+            // sleep a bit then try again once
+            System.out.println("WARNING: Unexpected BindException: " + ex);
+            System.out.println("\tSleeping a bit and try again...");
+            long start = System.nanoTime();
+            System.gc();
+            try {
+                Thread.sleep(DELAY_BEFORE_RETRY);
+            } catch (InterruptedException iex) {
+                // ignore
+            }
+            System.gc();
+            System.out.println("\tRetrying after "
+                    + Duration.ofNanos(System.nanoTime() - start).toMillis()
+                    + " milliseconds");
+            doConnect(protocol, server, authType, auth);
+        }
+    }
+
+    public static void doConnect(HttpProtocolType protocol,
+                               HTTPTestServer server,
+                               HttpAuthType authType,
+                               Authenticator auth)
+            throws IOException {
+
+        InetSocketAddress address = server.getAddress();
+        final URL url = url(protocol,  address, "/");
+        final Proxy proxy = proxy(server, authType);
+
+        System.out.println("Client: FIRST request: " + url + " GET");
+        HttpURLConnection conn = openConnection(url, authType, proxy);
+        configure(conn, auth);
+        System.out.println("Response code: " + conn.getResponseCode());
+        String result = new String(conn.getInputStream().readAllBytes(), "UTF-8");
+        System.out.println("Response body: " + result);
+        if (!result.isEmpty()) {
+            throw new RuntimeException("Unexpected response to GET: " + result);
+        }
+        System.out.println("\nClient: NEXT request: " + url + " POST");
+        conn = openConnection(url, authType, proxy);
+        configure(conn, auth);
+        conn.setRequestMethod("POST");
+        conn.setDoOutput(true);
+        conn.setDoInput(true);
+        conn.getOutputStream().write("Hello World!".getBytes("UTF-8"));
+        System.out.println("Response code: " + conn.getResponseCode());
+        result = new String(conn.getInputStream().readAllBytes(), "UTF-8");
+        System.out.println("Response body: " + result);
+        if ("Hello World!".equals(result)) {
+            System.out.println("Test passed!");
+        } else {
+            throw new RuntimeException("Unexpected response to POST: " + result);
+        }
+    }
+
+    private static void configure(HttpURLConnection conn, Authenticator auth)
+        throws IOException {
+        if (auth != null) {
+            conn.setAuthenticator(auth);
+        }
+        if (conn instanceof HttpsURLConnection) {
+            System.out.println("Client: configuring SSL connection");
+            // We have set a default SSLContext so we don't need to do
+            // anything here. Otherwise it could look like:
+            //     HttpsURLConnection httpsConn = (HttpsURLConnection)conn;
+            //     httpsConn.setSSLSocketFactory(
+            //               SimpleSSLContext.findSSLContext().getSocketFactory());
+        }
+    }
+
+}