/*

 * 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 4533243

 * @summary Closing a keep alive stream gives NullPointerException

 * @run main/othervm/timeout=30 KeepAliveStreamCloseWithWrongContentLength

 */

import java.net.*;

import java.io.*;

public class KeepAliveStreamCloseWithWrongContentLength {

    static class XServer extends Thread {

        ServerSocket srv;

        Socket s;

        InputStream is;

        OutputStream os;

        XServer (ServerSocket s) {

            srv = s;

        }

        public void run() {

            try {

                s = srv.accept ();

                // read HTTP request from client

                InputStream is = s.getInputStream();

                // read the first ten bytes

                for (int i=0; i<10; i++) {

                    is.read();

                }

                OutputStreamWriter ow =

                    new OutputStreamWriter((os = s.getOutputStream()));

                ow.write("HTTP/1.0 200 OK\n");

                // Note: The client expects 10 bytes.

                ow.write("Content-Length: 10\n");

                ow.write("Content-Type: text/html\n");

                // Note: If this line is missing, everything works fine.

                ow.write("Connection: Keep-Alive\n");

                ow.write("\n");

                // Note: The (buggy) server only sends 9 bytes.

                ow.write("123456789");

                ow.flush();

            } catch (Exception e) {

            } finally {

                try {if (os != null) { os.close(); }} catch (IOException e) {}

            }

        }

    }

    public static void main (String[] args) throws Exception {

        ServerSocket serversocket = new ServerSocket (0);

        try {

            int port = serversocket.getLocalPort ();

            XServer server = new XServer (serversocket);

            server.start ();

            URL url = new URL ("http://localhost:"+port);

            HttpURLConnection urlc = (HttpURLConnection)url.openConnection ();

            InputStream is = urlc.getInputStream ();

            int c = 0;

            while (c != -1) {

                try {

                    c=is.read();

                } catch (IOException ioe) {

                    is.read ();

                    break;

                }

            }

            is.close();

        } catch (IOException e) {

            return;

        } catch (NullPointerException e) {

            throw new RuntimeException (e);

        } finally {

            if (serversocket != null) serversocket.close();

        }

    }

}