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Java example source code file (GetConnectionTest.java)

This example Java source code file (GetConnectionTest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

exception, getconnectiontest, ioexception, jmxconnector, jmxserviceurl, malformedurlexception, management, mbeanserverconnection, net, network, string

The GetConnectionTest.java Java example source code

/*
 * Copyright (c) 2003, 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 4951414
 * @summary Try to get an IOException.
 * @author Shanliang JIANG
 * @run clean GetConnectionTest
 * @run build GetConnectionTest
 * @run main GetConnectionTest
 */

import java.io.IOException;
import java.net.MalformedURLException;

import javax.management.MBeanServer;
import javax.management.MBeanServerConnection;
import javax.management.MBeanServerFactory;
import javax.management.Notification;
import javax.management.NotificationListener;
import javax.management.ObjectName;

import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;

import javax.management.remote.JMXServiceURL;


public class GetConnectionTest {
    public static void main(String[] args) {
        System.out.println("Verify whether getting an IOException when "+
             "calling getMBeanServerConnection to a unconnected connector.");

        boolean ok = true;
        String[] protocols = {"rmi", "iiop", "jmxmp"};

        for (int i = 0; i < protocols.length; i++) {
            final String proto = protocols[i];
            System.out.println("Testing for protocol " + proto);
            try {
                ok &= test(proto);
            } catch (Exception e) {
                System.err.println("Unexpected exception: " + e);
                e.printStackTrace();
                ok = false;
            }
        }

        if (ok)
            System.out.println("All Tests passed");
        else {
            System.out.println("TEST FAILED");
            System.exit(1);
        }
    }

    private static boolean test(String proto) throws Exception {
        JMXConnector client;
        try {
            JMXServiceURL url = new JMXServiceURL(proto, null, 0);
            client = JMXConnectorFactory.newJMXConnector(url, null);
        } catch (MalformedURLException e) {
            System.out.println("Protocol " + proto +
                               " not supported, ignoring");
            return true;
        }

        // IOException is expected
        try {
            MBeanServerConnection connection =
                client.getMBeanServerConnection();

            System.out.println("FAILED: Expected IOException is not thrown.");
            return false;
        } catch (IOException e) {
            System.out.println("PASSED");
            return true;
        }
    }
}

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