/* * 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. * * 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 java.lang.management.ClassLoadingMXBean;import sun.management.counter.Counter; /** * Hotspot internal management interface for the class loading system. * * This management interface is internal and uncommitted * and subject to change without notice. */public interface HotspotClassLoadingMBean {    /**     * Returns the amount of memory in bytes occupied by loaded classes     * in the Java virtual machine.     *     * @return the amount of memory in bytes occupied by loaded classes     * in the Java virtual machine.     */    public long getLoadedClassSize();     /**     * Returns the number of bytes that the Java virtual machine     * collected due to class unloading.     *     * @return the number of bytes that the VM collected due to     * class unloading.     */    public long getUnloadedClassSize();     /**     * Returns the accumulated elapsed time spent by class loading     * in milliseconds.     *     * @return the accumulated elapsed time spent by class loading     * in milliseconds.     */    public long getClassLoadingTime();     /**     * Returns the amount of memory in bytes occupied by the method     * data.     *     * @return the amount of memory in bytes occupied by the method     * data.     */    public long getMethodDataSize();     /**     * Returns the number of classes for which initializers were run.     *     * @return the number of classes for which initializers were run.     */    public long getInitializedClassCount();     /**     * Returns the accumulated elapsed time spent in class initializers     * in milliseconds.     *     * @return the accumulated elapsed time spent in class initializers     * in milliseconds.     */    public long getClassInitializationTime();     /**     * Returns the accumulated elapsed time spent in class verifier     * in milliseconds.     *     * @return the accumulated elapsed time spent in class verifier     * in milliseconds.     */    public long getClassVerificationTime();     /**     * Returns a list of internal counters maintained in the Java     * virtual machine for the class loading system.     *     * @return a list of internal counters maintained in the VM     * for the class loading system.     */    public java.util.List<Counter> getInternalClassLoadingCounters(); }