95 lines
3.8 KiB
Java
95 lines
3.8 KiB
Java
/*
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* Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package com.sun.jdi;
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import java.util.List;
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/**
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* A class loader object from the target VM.
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* A ClassLoaderReference is an {@link ObjectReference} with additional
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* access to classloader-specific information from the target VM. Instances
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* ClassLoaderReference are obtained through calls to
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* {@link ReferenceType#classLoader}
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*
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* @see ObjectReference
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*
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* @author Gordon Hirsch
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* @since 1.3
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*/
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@jdk.Exported
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public interface ClassLoaderReference extends ObjectReference {
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/**
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* Returns a list of all loaded classes that were defined by this
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* class loader. No ordering of this list guaranteed.
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* <P>
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* The returned list will include reference types
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* loaded at least to the point of preparation and
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* types (like array) for which preparation is
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* not defined.
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*
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* @return a List of {@link ReferenceType} objects mirroring types
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* loaded by this class loader. The list has length 0 if no types
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* have been defined by this classloader.
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*/
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List<ReferenceType> definedClasses();
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/**
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* Returns a list of all classes for which this class loader has
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* been recorded as the initiating loader in the target VM.
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* The list contains ReferenceTypes defined directly by this loader
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* (as returned by {@link #definedClasses}) and any types for which
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* loading was delegated by this class loader to another class loader.
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* <p>
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* The visible class list has useful properties with respect to
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* the type namespace. A particular type name will occur at most
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* once in the list. Each field or variable declared with that
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* type name in a class defined by
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* this class loader must be resolved to that single type.
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* <p>
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* No ordering of the returned list is guaranteed.
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* <p>
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* See
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* <cite>The Java™ Virtual Machine Specification</cite>,
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* section 5.3 - Creation and Loading
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* for more information on the initiating classloader.
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* <p>
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* Note that unlike {@link #definedClasses()}
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* and {@link VirtualMachine#allClasses()},
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* some of the returned reference types may not be prepared.
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* Attempts to perform some operations on unprepared reference types
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* (e.g. {@link ReferenceType#fields() fields()}) will throw
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* a {@link ClassNotPreparedException}.
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* Use {@link ReferenceType#isPrepared()} to determine if
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* a reference type is prepared.
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*
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* @return a List of {@link ReferenceType} objects mirroring classes
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* initiated by this class loader. The list has length 0 if no classes
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* are visible to this classloader.
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*/
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List<ReferenceType> visibleClasses();
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}
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