/* * Copyright (c) 1998, 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 com.sun.jdi; import java.util.List; /** * A class loader object from the target VM. * A ClassLoaderReference is an {@link ObjectReference} with additional * access to classloader-specific information from the target VM. Instances * ClassLoaderReference are obtained through calls to * {@link ReferenceType#classLoader} * * @see ObjectReference * * @author Gordon Hirsch * @since  1.3 */public interface ClassLoaderReference extends ObjectReference {     /**     * Returns a list of all loaded classes that were defined by this     * class loader. No ordering of this list guaranteed.     * <P>     * The returned list will include reference types     * loaded at least to the point of preparation and     * types (like array) for which preparation is     * not defined.     *     * @return a List of {@link ReferenceType} objects mirroring types     * loaded by this class loader. The list has length 0 if no types     * have been defined by this classloader.     */    List<ReferenceType> definedClasses();     /**     * Returns a list of all classes for which this class loader has     * been recorded as the initiating loader in the target VM.     * The list contains ReferenceTypes defined directly by this loader     * (as returned by {@link #definedClasses}) and any types for which     * loading was delegated by this class loader to another class loader.     * <p>     * The visible class list has useful properties with respect to     * the type namespace. A particular type name will occur at most     * once in the list. Each field or variable declared with that     * type name in a class defined by     * this class loader must be resolved to that single type.     * <p>     * No ordering of the returned list is guaranteed.     * <p>     * See     * <cite>The Java&trade; Virtual Machine Specification</cite>,     * section 5.3 - Creation and Loading     * for more information on the initiating classloader.     * <p>     * Note that unlike {@link #definedClasses()}     * and {@link VirtualMachine#allClasses()},     * some of the returned reference types may not be prepared.     * Attempts to perform some operations on unprepared reference types     * (e.g. {@link ReferenceType#fields() fields()}) will throw     * a {@link ClassNotPreparedException}.     * Use {@link ReferenceType#isPrepared()} to determine if     * a reference type is prepared.     *     * @return a List of {@link ReferenceType} objects mirroring classes     * initiated by this class loader. The list has length 0 if no classes     * are visible to this classloader.     */    List<ReferenceType> visibleClasses();}