/*

 * Copyright (c) 2013, 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.

 */

import jdk.testlibrary.OutputAnalyzer;

import jdk.testlibrary.Utils;

import java.io.IOException;

import java.net.ServerSocket;

import java.util.logging.Logger;

/**

 * This test used for test development and it is not meant to be run by JTReg.

 * <p/>

 * This test exercises a retry mechanism to avoid a test failure because of

 * starting the VM on a busy jmxremote.port.

 * <p/>

 * To run this test you'll need to add this VM option: -Dtest.jdk=<path-to-jdk>

 */

public class PortAlreadyInUseTest extends DynamicLauncher {

    ServerSocket socket;

    final Logger log = Logger.getLogger("PortAlreadyInUse");

    protected void go() throws Exception {

        jmxPort = Utils.getFreePort();

        occupyPort();

        log.info("Attempting to start a VM using the same port.");

        OutputAnalyzer out = this.runVM();

        out.shouldContain("Port already in use");

        log.info("Failed as expected.");

        log.info("Trying again using retries.");

        this.run();

    }

    private void occupyPort() throws IOException {

        socket = new ServerSocket(jmxPort);

        log.info("Occupying port " + String.valueOf(jmxPort));

    }

    protected String[] options() {

        String[] options = {

                "-Dcom.sun.management.jmxremote.authenticate=false",

                "-Dcom.sun.management.jmxremote.ssl=false",

                "-Dcom.sun.management.jmxremote=true",

                "-Dcom.sun.management.jmxremote.port=" + String.valueOf(jmxPort),

                "-version"

        };

        return options;

    }

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

        PortAlreadyInUseTest test = new PortAlreadyInUseTest();

        test.go();

    }

}