--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/sun/net/www/protocol/http/UserAgent.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2001, 2002, 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 4512200
+ * @modules java.base/sun.net.www
+ * @run main/othervm -Dhttp.agent=foo UserAgent
+ * @summary  HTTP header "User-Agent" format incorrect
+ */
+
+import java.io.*;
+import java.util.*;
+import java.net.*;
+import sun.net.www.MessageHeader;
+
+class Server extends Thread {
+    Server (ServerSocket server) {
+        this.server = server;
+    }
+    public void run () {
+        try {
+            String version = System.getProperty ("java.version");
+            String expected = "foo Java/"+version;
+            Socket s = server.accept ();
+            MessageHeader header = new MessageHeader (s.getInputStream());
+            String v = header.findValue ("User-Agent");
+            if (!expected.equals (v)) {
+                error ("Got unexpected User-Agent: " + v);
+            } else {
+                success ();
+            }
+            OutputStream w = s.getOutputStream();
+            w.write("HTTP/1.1 200 OK\r\n".getBytes());
+            w.write("Content-Type: text/plain\r\n".getBytes());
+            w.write("Content-Length: 5\r\n".getBytes());
+            w.write("\r\n".getBytes());
+            w.write("12345\r\n".getBytes());
+        } catch (Exception e) {
+            error (e.toString());
+        }
+    }
+
+    String msg;
+    ServerSocket server;
+    boolean success;
+
+    synchronized String getMessage () {
+        return msg;
+    }
+
+    synchronized boolean succeeded () {
+        return success;
+    }
+
+    synchronized void success () {
+        success = true;
+    }
+    synchronized void error (String s) {
+        success = false;
+        msg = s;
+    }
+}
+
+public class UserAgent {
+
+    public static void main(String[] args) throws Exception {
+        ServerSocket server = new ServerSocket (0);
+        Server s = new Server (server);
+        s.start ();
+        int port = server.getLocalPort ();
+        URL url = new URL ("http://127.0.0.1:"+port);
+        URLConnection urlc = url.openConnection ();
+        urlc.getInputStream ();
+        s.join ();
+        if (!s.succeeded()) {
+            throw new RuntimeException (s.getMessage());
+        }
+    }
+}