/*

 * 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

 * @summary Fixed a potential NullPointerException when setting a ResponseCache that returns a null CacheRequest

 * @bug 4837267

 * @author Michael McMahon

 */

import com.sun.net.httpserver.*;

import java.net.*;

import java.io.*;

import java.util.*;

public class Test

{

    static class MyHandler implements HttpHandler {

        public void handle(HttpExchange t) throws IOException {

            byte[] b = new byte[1024];

            int r = 0;

            InputStream is = t.getRequestBody();

            while (is.read(b) != -1) ;

            String response = "This is the response";

            t.sendResponseHeaders(200, response.length());

            OutputStream os = t.getResponseBody();

            os.write(response.getBytes());

            os.close();

        }

    }

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

        HttpServer server = HttpServer.create(new InetSocketAddress(0), 0);

        server.createContext("/", new MyHandler());

        server.start();

        ResponseCache bak = ResponseCache.getDefault();

        try {

            ResponseCache.setDefault (new ResponseCache() {

                public CacheResponse get (URI uri, String rqstMethod, Map<String,List<String>> rqstHeaders)

                    throws IOException {

                    return null;

                }

                public CacheRequest put(URI uri, URLConnection conn)  throws IOException

                {

                    return null;

                }

            });

            URL url = new URL ("http://localhost:" + server.getAddress().getPort() + "/");

            URLConnection urlc = url.openConnection ();

            InputStream is = urlc.getInputStream();

            while (is.read() != -1) ;

            is.close();

        } finally {

            ResponseCache.setDefault(bak);

            server.stop(0);

        }

    }

}