ImplVersionCommand.java

/*
 * Copyright (c) 2003, 2004, 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 javax.management.MBeanServer;
import javax.management.MBeanServerFactory;
import javax.management.ObjectName;

public class ImplVersionCommand {

    public static void main(String[] args) throws Exception {
        // Instantiate the MBean server
        //
        System.out.println("Create the MBean server");
        MBeanServer mbs = MBeanServerFactory.createMBeanServer();

        // Get the JMX implementation version from the MBeanServerDelegateMBean
        //
        System.out.println("Get the JMX implementation version");
        ObjectName mbsdName =
            new ObjectName("JMImplementation:type=MBeanServerDelegate");
        String mbsdAttribute = "ImplementationVersion";
        String mbsdVersion = (String) mbs.getAttribute(mbsdName, mbsdAttribute);

        // Display JMX implementation version and JVM implementation version
        //
        System.out.println("JMX implementation version          = " +
                           mbsdVersion);
        System.out.println("Java Runtime implementation version = " +
                           args[0]);

        // Check JMX implementation version vs. JVM implementation version
        //
        if (!mbsdVersion.equals(args[0]))
            throw new IllegalArgumentException(
              "JMX and Java Runtime implementation versions do not match!");
        // Test OK!
        //
        System.out.println("JMX and Java Runtime implementation " +
                           "versions match!");
        System.out.println("Bye! Bye!");
    }
}