/*

 * Copyright (c) 2003, 2015, 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 4921888

 * @summary Tests that we do not get a NullPointException.

 * @author Shanliang JIANG

 * @modules java.management

 * @run clean CloseFailedClientTest

 * @run build CloseFailedClientTest

 * @run main CloseFailedClientTest

 */

import java.net.MalformedURLException;

import java.io.IOException;

import javax.management.*;

import javax.management.remote.*;

/**

 * Try to connect a client to a no-existing or not started server,

 * expected to receive an IOException.

 *

 */

public class CloseFailedClientTest {

    /**

     * we use a fix port on which we hope no server is running,

     * or a server running on it will give an IOException when our

     * clients try to connect to it.

     * The port 999 is specified in

     * http://www.iana.org/assignments/port-numbers

     * as:

     * garcon           999/tcp

     * applix           999/udp        Applix ac

     * puprouter        999/tcp

     * puprouter        999/udp

     *

     * If the test fails because a server runs on this port and does

     * not give back an IOException, we can change to another one like

     * 9999

     */

    private static final int port = 999;

    private static final String[] protocols = {"rmi", "iiop", "jmxmp"};

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

        System.out.println("Test to close a failed client.");

        boolean ok = true;

        for (int i = 0; i < protocols.length; i++) {

            try {

                if (!test(protocols[i])) {

                    System.out.println("Test failed for " + protocols[i]);

                    ok = false;

                } else {

                    System.out.println("Test successed for " + protocols[i]);

                }

            } catch (Exception e) {

                System.out.println("Test failed for " + protocols[i]);

                e.printStackTrace(System.out);

                ok = false;

            }

        }

        if (ok) {

            System.out.println("Test passed");

            return;

        } else {

            System.out.println("TEST FAILED");

            System.exit(1);

        }

    }

    private static boolean test(String proto)

            throws Exception {

        System.out.println("Test for protocol " + proto);

        JMXServiceURL url = new JMXServiceURL(proto, null, port);

        JMXConnector connector;

        JMXConnectorServer server;

        for (int i=0; i<20; i++) {

            // no server

            try {

                connector = JMXConnectorFactory.newJMXConnector(url, null);

            } catch (MalformedURLException e) {

                System.out.println("Skipping unsupported URL " + url);

                return true;

            }

            try {

                connector.connect();

                throw new RuntimeException("Do not get expected IOEeption.");

            } catch (IOException e) {

                // OK, the expected IOException is thrown.");

            }

            // close the connector client

            connector.close();

            // with server but not started

            try {

                server = JMXConnectorServerFactory.newJMXConnectorServer(url, null, null);

            } catch (MalformedURLException e) {

                System.out.println("Skipping unsupported URL " + url);

                return true;

            }

            connector = JMXConnectorFactory.newJMXConnector(url, null);

            try {

                connector.connect();

                throw new RuntimeException("Do not get expected IOEeption.");

            } catch (IOException e) {

                // OK, the expected IOException is thrown.");

            }

            // close the connector client

            connector.close();

        }

        return true;

    }

}