/* * Copyright (c) 2004, 2008, 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. * * 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. */ package sun.management; import javax.management.MBeanRegistration;import javax.management.MBeanServer;import javax.management.ObjectName; /** * Implementation class of HotspotInternalMBean interface. * * <p> This is designed for internal customer use to create * this MBean dynamically from an agent which will then register * all internal MBeans to the platform MBeanServer. */public class HotspotInternal    implements HotspotInternalMBean, MBeanRegistration {     private final static String HOTSPOT_INTERNAL_MBEAN_NAME =        "sun.management:type=HotspotInternal";    private static ObjectName objName = Util.newObjectName(HOTSPOT_INTERNAL_MBEAN_NAME);    private MBeanServer server = null;     /**     * Default constructor that registers all hotspot internal MBeans     * to the MBeanServer that creates this MBean.     */    public HotspotInternal() {    }     public ObjectName preRegister(MBeanServer server,                                  ObjectName name) throws java.lang.Exception {        // register all internal MBeans when this MBean is instantiated        // and to be registered in a MBeanServer.        ManagementFactoryHelper.registerInternalMBeans(server);        this.server = server;        return objName;    }     public void postRegister(Boolean registrationDone) {};     public void preDeregister() throws java.lang.Exception {        // unregister all internal MBeans when this MBean is unregistered.        ManagementFactoryHelper.unregisterInternalMBeans(server);    }     public void postDeregister() {}; }