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/com/sun/net/httpserver/TaskRejectedTest.java

@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2018, 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 com.sun.net.httpserver.HttpServer;
+
+import java.io.IOException;
+import java.net.HttpURLConnection;
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.MalformedURLException;
+import java.net.SocketException;
+import java.net.SocketTimeoutException;
+import java.net.URL;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+import java.util.concurrent.RejectedExecutionException;
+import java.util.logging.ConsoleHandler;
+import java.util.logging.Handler;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import static com.sun.net.httpserver.HttpExchange.RSPBODY_EMPTY;
+
+/*
+ * @test
+ * @bug 8169358
+ * @summary  HttpServer does not close client connection when RejectedExecutionException occurs.
+ * @comment We use othervm because this test configures logging handlers
+ *          for the system wide "com.sun.net.httpserver" logger
+ * @run main/othervm ${test.main.class}
+ */
+public class TaskRejectedTest {
+
+    private static final int BACKLOG = 0;
+
+    private static final String REQUEST_PATH = "/";
+
+    private static final int TIMEOUT = 10000; // 10 sec
+
+    private static final Logger logger = Logger.getLogger("com.sun.net.httpserver");
+
+    private static void setupLogging() {
+        final Handler consoleHandler = new ConsoleHandler();
+        consoleHandler.setLevel(Level.FINEST);
+        logger.setLevel(Level.FINEST);
+        logger.addHandler(consoleHandler);
+    }
+
+    private static void runClient(InetSocketAddress listenAddr)
+                                     throws MalformedURLException, IOException {
+        URL url = new URL("http", listenAddr.getHostString(),
+                                            listenAddr.getPort(), REQUEST_PATH);
+        HttpURLConnection con = (HttpURLConnection)url.openConnection();
+        con.setConnectTimeout(TIMEOUT);
+        con.setReadTimeout(TIMEOUT);
+
+        try {
+            con.connect();
+            con.getResponseCode();
+        } catch (SocketTimeoutException e) {
+            throw new RuntimeException("Connection was not closed by peer.", e);
+        } catch (SocketException e) {
+            // Expected (connection reset)
+        } finally {
+            con.disconnect();
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        setupLogging(); // merely for debugging
+        Executor executor = Executors.newSingleThreadExecutor(r -> {
+            throw new RejectedExecutionException("test");
+        });
+
+        InetSocketAddress addr = new InetSocketAddress(
+                                         InetAddress.getLoopbackAddress(), 0);
+        HttpServer httpServer = HttpServer.create(addr, BACKLOG);
+        httpServer.setExecutor(executor);
+
+        httpServer.createContext(REQUEST_PATH, exc -> {
+            exc.sendResponseHeaders(200, RSPBODY_EMPTY);
+            exc.close();
+        });
+
+        try {
+            httpServer.start();
+            runClient(httpServer.getAddress());
+        } finally {
+            httpServer.stop(0);
+        }
+    }
+}
+