/*

 * Copyright (c) 2013, 2016, 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 8015799

 * @modules jdk.httpserver

 * @summary HttpURLConnection.getHeaderFields() throws IllegalArgumentException

 */

import com.sun.net.httpserver.*;

import java.io.IOException;

import java.io.OutputStream;

import java.net.*;

import java.util.*;

public class EmptyCookieHeader {

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

        new EmptyCookieHeader().runTest();

    }

    public void runTest() throws Exception {

        final CookieHandler oldHandler = CookieHandler.getDefault();

        CookieHandler.setDefault(new TestCookieHandler());

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

        try {

            startServer(s);

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

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

            c.getHeaderFields();

        } finally {

            CookieHandler.setDefault(oldHandler);

            s.stop(0);

        }

    }

    static void startServer(HttpServer server) throws IOException {

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

        server.start();

    }

    static class EmptyCookieHandler implements HttpHandler {

        @Override

        public void handle(HttpExchange exchange) throws IOException {

            String requestMethod = exchange.getRequestMethod();

            if (requestMethod.equalsIgnoreCase("GET")) {

                Headers responseHeaders = exchange.getResponseHeaders();

                responseHeaders.set("Content-Type", "text/plain");

                responseHeaders.set("Date", "June 13th 2012");

                // No domain value set

                responseHeaders.set("Set-Cookie2", "name=value");

                responseHeaders.set("Set-Cookie2", "");

                exchange.sendResponseHeaders(200, 0);

                try (OutputStream os = exchange.getResponseBody()) {

                    String str = "This is what the server sent!";

                    os.write(str.getBytes());

                }

            }

        }

    }

    class TestCookieHandler extends CookieHandler {

        @Override

        public Map<String,List<String>> get(URI uri,

                                            Map<String,List<String>> respH) {

            return new HashMap<>();

        }

        @Override

        public void put(URI uri, Map<String,List<String >> respH) { }

    }

}