src/windows/classes/com/sun/management/OSMBeanFactory.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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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.
 *
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package com.sun.management;

import java.lang.management.OperatingSystemMXBean;
import sun.management.VMManagement;

/**
 * Operating system dependent MBean factory.
 * <p>
 * <b>WARNING:</b> While this class is public, it should not be treated as
 * public API and its API may change in incompatable ways between dot dot
 * releases and even patch releases. You should not rely on this class.
 */
public class OSMBeanFactory {
    /* static factory class */
    private OSMBeanFactory() {};

    private static OperatingSystem osMBean = null;

    public static synchronized OperatingSystemMXBean
        getOperatingSystemMXBean(VMManagement jvm) {

        if (osMBean == null) {
            osMBean = new OperatingSystem(jvm);
        }
        return (OperatingSystemMXBean) osMBean;
    }
}