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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

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 * 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).

 *

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 * 2 along with this work; if not, write to the Free Software Foundation,

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/*

 * @test

 * @bug 6175517

 * @summary Check that Standard MBeans can change their MBeanNotificationInfo[]

 * and MXBeans cannot

 * @author Eamonn McManus

 * @modules java.management

 * @run clean ChangingNotifsTest

 * @run build ChangingNotifsTest

 * @run main ChangingNotifsTest

 */

import javax.management.*;

import java.util.Arrays;

public class ChangingNotifsTest {

    public static interface EmptyMBean {}

    public static interface EmptyMXBean {}

    public static class Base extends NotificationBroadcasterSupport {

        @Override

        public MBeanNotificationInfo[] getNotificationInfo() {

            MBeanNotificationInfo inf =

                new MBeanNotificationInfo(new String[0],

                                          Integer.toString(++called),

                                          "description");

            return new MBeanNotificationInfo[] {inf};

        }

        private static int called;

    }

    public static class Empty extends Base implements EmptyMBean {}

    public static class EmptyMX extends Base implements EmptyMXBean {}

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

        MBeanServer mbs = MBeanServerFactory.newMBeanServer();

        ObjectName name = new ObjectName("a:b=c");

        for (boolean mx : new boolean[] {false, true})

            test(mbs, name, mx);

        if (failure != null)

            throw new Exception(failure);

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

    }

    private static void test(MBeanServer mbs, ObjectName name, boolean mx)

            throws Exception {

        Object mbean = mx ? new EmptyMX() : new Empty();

        String what = mx ? "MXBean" : "Standard MBean";

        mbs.registerMBean(mbean, name);

        try {

            MBeanInfo mbi = mbs.getMBeanInfo(name);

            Descriptor d = mbi.getDescriptor();

            String immut = (String) d.getFieldValue("immutableInfo");

            boolean immutable = (immut != null && immut.equals("true"));

            if (immutable != mx) {

                fail(what + " has immutableInfo=" + immut + ", should be " +

                     mx);

                return;

            }

            MBeanNotificationInfo[] n1 = mbi.getNotifications().clone();

            mbi = mbs.getMBeanInfo(name);

            boolean unchanged = Arrays.deepEquals(mbi.getNotifications(), n1);

            if (unchanged != mx) {

                fail(what + " notif info " +

                     (unchanged ? "did not change" : "changed"));

                return;

            }

            System.out.println("OK: " + what);

        } finally {

            mbs.unregisterMBean(name);

        }

    }

    private static void fail(String why) {

        failure = "FAILED: " + why;

        System.out.println(failure);

    }

    private static String failure;

}