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/*
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* Copyright (c) 2001, 2003, 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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/*
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* Licensed Materials - Property of IBM
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* RMI-IIOP v1.0
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* Copyright IBM Corp. 1998 1999 All Rights Reserved
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*
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*/
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package com.sun.corba.se.impl.orbutil;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import java.security.DigestOutputStream;
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import java.security.AccessController;
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import java.security.PrivilegedExceptionAction;
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import java.security.PrivilegedActionException;
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import java.security.PrivilegedAction;
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import java.lang.reflect.Modifier;
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import java.lang.reflect.Array;
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import java.lang.reflect.Field;
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import java.lang.reflect.Member;
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import java.lang.reflect.Method;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Proxy;
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import java.lang.reflect.InvocationTargetException;
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import java.io.IOException;
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import java.io.DataOutputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.InvalidClassException;
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import java.io.Serializable;
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import java.util.Arrays;
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import java.util.Comparator;
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import java.util.Hashtable;
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import org.omg.CORBA.ValueMember;
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import com.sun.corba.se.impl.io.ValueUtility;
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import com.sun.corba.se.impl.io.ObjectStreamClass;
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/**
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* This is duplicated here to preserve the JDK 1.3.1FCS behavior
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* of calculating the OMG hash code incorrectly when serialPersistentFields
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* is used, but some of the fields no longer exist in the class itself.
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*
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* We have to duplicate it since we aren't allowed to modify the
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* com.sun.corba.se.impl.io version further, and can't make it
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* public outside of its package for security reasons.
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*/
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/**
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* A ObjectStreamClass_1_3_1 describes a class that can be serialized to a stream
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* or a class that was serialized to a stream. It contains the name
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* and the serialVersionUID of the class.
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* <br>
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* The ObjectStreamClass_1_3_1 for a specific class loaded in this Java VM can
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* be found using the lookup method.
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*
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* @author Roger Riggs
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* @since JDK1.1
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*/
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public class ObjectStreamClass_1_3_1 implements java.io.Serializable {
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public static final long kDefaultUID = -1;
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private static Object noArgsList[] = {};
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private static Class noTypesList[] = {};
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private static Hashtable translatedFields;
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/** Find the descriptor for a class that can be serialized. Null
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* is returned if the specified class does not implement
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* java.io.Serializable or java.io.Externalizable.
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*/
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static final ObjectStreamClass_1_3_1 lookup(Class cl)
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{
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ObjectStreamClass_1_3_1 desc = lookupInternal(cl);
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if (desc.isSerializable() || desc.isExternalizable())
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return desc;
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return null;
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}
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/*
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* Find the class descriptor for the specified class.
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* Package access only so it can be called from ObjectIn/OutStream.
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*/
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static ObjectStreamClass_1_3_1 lookupInternal(Class cl)
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{
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/* Synchronize on the hashtable so no two threads will do
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* this at the same time.
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*/
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ObjectStreamClass_1_3_1 desc = null;
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synchronized (descriptorFor) {
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/* Find the matching descriptor if it already known */
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desc = findDescriptorFor(cl);
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if (desc != null) {
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return desc;
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}
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/* Check if it's serializable */
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boolean serializable = classSerializable.isAssignableFrom(cl);
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/* If the class is only Serializable,
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* lookup the descriptor for the superclass.
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*/
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ObjectStreamClass_1_3_1 superdesc = null;
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if (serializable) {
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Class superclass = cl.getSuperclass();
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if (superclass != null)
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superdesc = lookup(superclass);
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}
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/* Check if its' externalizable.
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* If it's Externalizable, clear the serializable flag.
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* Only one or the other may be set in the protocol.
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*/
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boolean externalizable = false;
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if (serializable) {
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externalizable =
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((superdesc != null) && superdesc.isExternalizable()) ||
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classExternalizable.isAssignableFrom(cl);
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if (externalizable) {
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serializable = false;
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}
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}
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/* Create a new version descriptor,
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* it put itself in the known table.
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*/
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desc = new ObjectStreamClass_1_3_1(cl, superdesc,
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serializable, externalizable);
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}
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desc.init();
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return desc;
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}
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/**
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* The name of the class described by this descriptor.
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*/
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public final String getName() {
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return name;
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}
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/**
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* Return the serialVersionUID for this class.
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* The serialVersionUID defines a set of classes all with the same name
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* that have evolved from a common root class and agree to be serialized
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* and deserialized using a common format.
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*/
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public static final long getSerialVersionUID( java.lang.Class clazz) {
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ObjectStreamClass_1_3_1 theosc = ObjectStreamClass_1_3_1.lookup( clazz );
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if( theosc != null )
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{
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return theosc.getSerialVersionUID( );
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}
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return 0;
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}
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/**
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* Return the serialVersionUID for this class.
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* The serialVersionUID defines a set of classes all with the same name
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* that have evolved from a common root class and agree to be serialized
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* and deserialized using a common format.
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*/
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public final long getSerialVersionUID() {
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return suid;
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}
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/**
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* Return the serialVersionUID string for this class.
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* The serialVersionUID defines a set of classes all with the same name
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* that have evolved from a common root class and agree to be serialized
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* and deserialized using a common format.
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*/
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public final String getSerialVersionUIDStr() {
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if (suidStr == null)
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suidStr = Long.toHexString(suid).toUpperCase();
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return suidStr;
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}
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/**
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* Return the actual (computed) serialVersionUID for this class.
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*/
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public static final long getActualSerialVersionUID( java.lang.Class clazz )
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{
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ObjectStreamClass_1_3_1 theosc = ObjectStreamClass_1_3_1.lookup( clazz );
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if( theosc != null )
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{
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return theosc.getActualSerialVersionUID( );
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}
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return 0;
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}
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/**
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* Return the actual (computed) serialVersionUID for this class.
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*/
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public final long getActualSerialVersionUID() {
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return actualSuid;
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}
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/**
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* Return the actual (computed) serialVersionUID for this class.
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*/
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public final String getActualSerialVersionUIDStr() {
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if (actualSuidStr == null)
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actualSuidStr = Long.toHexString(actualSuid).toUpperCase();
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return actualSuidStr;
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}
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/**
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* Return the class in the local VM that this version is mapped to.
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* Null is returned if there is no corresponding local class.
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*/
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public final Class forClass() {
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return ofClass;
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}
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/**
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* Return an array of the fields of this serializable class.
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* @return an array containing an element for each persistent
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* field of this class. Returns an array of length zero if
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* there are no fields.
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* @since JDK1.2
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*/
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public ObjectStreamField[] getFields() {
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// Return a copy so the caller can't change the fields.
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if (fields.length > 0) {
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ObjectStreamField[] dup = new ObjectStreamField[fields.length];
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System.arraycopy(fields, 0, dup, 0, fields.length);
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return dup;
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} else {
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return fields;
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}
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}
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public boolean hasField(ValueMember field){
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for (int i = 0; i < fields.length; i++){
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try{
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if (fields[i].getName().equals(field.name)) {
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if (fields[i].getSignature().equals(ValueUtility.getSignature(field)))
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return true;
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}
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}
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catch(Throwable t){}
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}
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return false;
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}
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/* Avoid unnecessary allocations. */
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final ObjectStreamField[] getFieldsNoCopy() {
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return fields;
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}
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/**
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* Get the field of this class by name.
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* @return The ObjectStreamField object of the named field or null if there
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* is no such named field.
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*/
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public final ObjectStreamField getField(String name) {
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/* Binary search of fields by name.
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*/
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for (int i = fields.length-1; i >= 0; i--) {
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if (name.equals(fields[i].getName())) {
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return fields[i];
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}
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}
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return null;
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}
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public Serializable writeReplace(Serializable value) {
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if (writeReplaceObjectMethod != null) {
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try {
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return (Serializable) writeReplaceObjectMethod.invoke(value,noArgsList);
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}
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catch(Throwable t) {
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301 |
throw new RuntimeException(t.getMessage());
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302 |
}
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}
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else return value;
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}
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public Object readResolve(Object value) {
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if (readResolveObjectMethod != null) {
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try {
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return readResolveObjectMethod.invoke(value,noArgsList);
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}
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catch(Throwable t) {
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throw new RuntimeException(t.getMessage());
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}
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}
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else return value;
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}
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/**
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* Return a string describing this ObjectStreamClass_1_3_1.
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*/
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public final String toString() {
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StringBuffer sb = new StringBuffer();
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sb.append(name);
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sb.append(": static final long serialVersionUID = ");
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sb.append(Long.toString(suid));
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sb.append("L;");
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return sb.toString();
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}
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331 |
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332 |
/*
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* Create a new ObjectStreamClass_1_3_1 from a loaded class.
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* Don't call this directly, call lookup instead.
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*/
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336 |
private ObjectStreamClass_1_3_1(java.lang.Class cl, ObjectStreamClass_1_3_1 superdesc,
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boolean serial, boolean extern)
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{
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ofClass = cl; /* created from this class */
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340 |
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341 |
if (Proxy.isProxyClass(cl)) {
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342 |
forProxyClass = true;
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343 |
}
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344 |
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345 |
name = cl.getName();
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superclass = superdesc;
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serializable = serial;
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348 |
if (!forProxyClass) {
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349 |
// proxy classes are never externalizable
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350 |
externalizable = extern;
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351 |
}
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352 |
|
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353 |
/*
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354 |
* Enter this class in the table of known descriptors.
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355 |
* Otherwise, when the fields are read it may recurse
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356 |
* trying to find the descriptor for itself.
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357 |
*/
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358 |
insertDescriptorFor(this);
|
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359 |
|
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360 |
/*
|
|
361 |
* The remainder of initialization occurs in init(), which is called
|
|
362 |
* after the lock on the global class descriptor table has been
|
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363 |
* released.
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|
364 |
*/
|
|
365 |
}
|
|
366 |
|
|
367 |
/*
|
|
368 |
* Initialize class descriptor. This method is only invoked on class
|
|
369 |
* descriptors created via calls to lookupInternal(). This method is kept
|
|
370 |
* separate from the ObjectStreamClass_1_3_1 constructor so that lookupInternal
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371 |
* does not have to hold onto a global class descriptor table lock while the
|
|
372 |
* class descriptor is being initialized (see bug 4165204).
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|
373 |
*/
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374 |
|
|
375 |
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|
376 |
private void init() {
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|
377 |
synchronized (lock) {
|
|
378 |
|
|
379 |
final Class cl = ofClass;
|
|
380 |
|
|
381 |
if (fields != null) // already initialized
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|
382 |
return;
|
|
383 |
|
|
384 |
|
|
385 |
if (!serializable ||
|
|
386 |
externalizable ||
|
|
387 |
forProxyClass ||
|
|
388 |
name.equals("java.lang.String")) {
|
|
389 |
fields = NO_FIELDS;
|
|
390 |
} else if (serializable) {
|
|
391 |
|
|
392 |
/* Ask for permission to override field access checks.
|
|
393 |
*/
|
|
394 |
AccessController.doPrivileged(new PrivilegedAction() {
|
|
395 |
public Object run() {
|
|
396 |
/* Fill in the list of persistent fields.
|
|
397 |
* If it is declared, use the declared serialPersistentFields.
|
|
398 |
* Otherwise, extract the fields from the class itself.
|
|
399 |
*/
|
|
400 |
try {
|
|
401 |
Field pf = cl.getDeclaredField("serialPersistentFields");
|
|
402 |
// serial bug 7; the serialPersistentFields were not
|
|
403 |
// being read and stored as Accessible bit was not set
|
|
404 |
pf.setAccessible(true);
|
|
405 |
// serial bug 7; need to find if the field is of type
|
|
406 |
// java.io.ObjectStreamField
|
|
407 |
java.io.ObjectStreamField[] f =
|
|
408 |
(java.io.ObjectStreamField[])pf.get(cl);
|
|
409 |
int mods = pf.getModifiers();
|
|
410 |
if ((Modifier.isPrivate(mods)) &&
|
|
411 |
(Modifier.isStatic(mods)) &&
|
|
412 |
(Modifier.isFinal(mods)))
|
|
413 |
{
|
|
414 |
fields = (ObjectStreamField[])translateFields((Object[])pf.get(cl));
|
|
415 |
}
|
|
416 |
} catch (NoSuchFieldException e) {
|
|
417 |
fields = null;
|
|
418 |
} catch (IllegalAccessException e) {
|
|
419 |
fields = null;
|
|
420 |
} catch (IllegalArgumentException e) {
|
|
421 |
fields = null;
|
|
422 |
} catch (ClassCastException e) {
|
|
423 |
/* Thrown if a field serialPersistentField exists
|
|
424 |
* but it is not of type ObjectStreamField.
|
|
425 |
*/
|
|
426 |
fields = null;
|
|
427 |
}
|
|
428 |
|
|
429 |
|
|
430 |
if (fields == null) {
|
|
431 |
/* Get all of the declared fields for this
|
|
432 |
* Class. setAccessible on all fields so they
|
|
433 |
* can be accessed later. Create a temporary
|
|
434 |
* ObjectStreamField array to hold each
|
|
435 |
* non-static, non-transient field. Then copy the
|
|
436 |
* temporary array into an array of the correct
|
|
437 |
* size once the number of fields is known.
|
|
438 |
*/
|
|
439 |
Field[] actualfields = cl.getDeclaredFields();
|
|
440 |
|
|
441 |
int numFields = 0;
|
|
442 |
ObjectStreamField[] tempFields =
|
|
443 |
new ObjectStreamField[actualfields.length];
|
|
444 |
for (int i = 0; i < actualfields.length; i++) {
|
|
445 |
int modifiers = actualfields[i].getModifiers();
|
|
446 |
if (!Modifier.isStatic(modifiers) &&
|
|
447 |
!Modifier.isTransient(modifiers)) {
|
|
448 |
tempFields[numFields++] =
|
|
449 |
new ObjectStreamField(actualfields[i]);
|
|
450 |
}
|
|
451 |
}
|
|
452 |
fields = new ObjectStreamField[numFields];
|
|
453 |
System.arraycopy(tempFields, 0, fields, 0, numFields);
|
|
454 |
|
|
455 |
} else {
|
|
456 |
// For each declared persistent field, look for an actual
|
|
457 |
// reflected Field. If there is one, make sure it's the correct
|
|
458 |
// type and cache it in the ObjectStreamClass_1_3_1 for that field.
|
|
459 |
for (int j = fields.length-1; j >= 0; j--) {
|
|
460 |
try {
|
|
461 |
Field reflField = cl.getDeclaredField(fields[j].getName());
|
|
462 |
if (fields[j].getType() == reflField.getType()) {
|
|
463 |
// reflField.setAccessible(true);
|
|
464 |
fields[j].setField(reflField);
|
|
465 |
}
|
|
466 |
} catch (NoSuchFieldException e) {
|
|
467 |
// Nothing to do
|
|
468 |
}
|
|
469 |
}
|
|
470 |
}
|
|
471 |
return null;
|
|
472 |
}
|
|
473 |
});
|
|
474 |
|
|
475 |
if (fields.length > 1)
|
|
476 |
Arrays.sort(fields);
|
|
477 |
|
|
478 |
/* Set up field data for use while writing using the API api. */
|
|
479 |
computeFieldInfo();
|
|
480 |
}
|
|
481 |
|
|
482 |
/* Get the serialVersionUID from the class.
|
|
483 |
* It uses the access override mechanism so make sure
|
|
484 |
* the field objects is only used here.
|
|
485 |
*
|
|
486 |
* NonSerializable classes have a serialVerisonUID of 0L.
|
|
487 |
*/
|
|
488 |
if (isNonSerializable()) {
|
|
489 |
suid = 0L;
|
|
490 |
} else {
|
|
491 |
// Lookup special Serializable members using reflection.
|
|
492 |
AccessController.doPrivileged(new PrivilegedAction() {
|
|
493 |
public Object run() {
|
|
494 |
if (forProxyClass) {
|
|
495 |
// proxy classes always have serialVersionUID of 0L
|
|
496 |
suid = 0L;
|
|
497 |
} else {
|
|
498 |
try {
|
|
499 |
final Field f = cl.getDeclaredField("serialVersionUID");
|
|
500 |
int mods = f.getModifiers();
|
|
501 |
// SerialBug 5: static final SUID should be read
|
|
502 |
if (Modifier.isStatic(mods) &&
|
|
503 |
Modifier.isFinal(mods) ) {
|
|
504 |
f.setAccessible(true);
|
|
505 |
suid = f.getLong(cl);
|
|
506 |
// get rid of native code
|
|
507 |
// suid = getSerialVersionUIDField(cl);
|
|
508 |
// SerialBug 2: should be computed after writeObject
|
|
509 |
// actualSuid = computeStructuralUID(cl);
|
|
510 |
} else {
|
|
511 |
suid = ObjectStreamClass.getSerialVersionUID(cl);
|
|
512 |
// SerialBug 2: should be computed after writeObject
|
|
513 |
// actualSuid = computeStructuralUID(cl);
|
|
514 |
}
|
|
515 |
} catch (NoSuchFieldException ex) {
|
|
516 |
suid = ObjectStreamClass.getSerialVersionUID(cl);
|
|
517 |
// SerialBug 2: should be computed after writeObject
|
|
518 |
// actualSuid = computeStructuralUID(cl);
|
|
519 |
} catch (IllegalAccessException ex) {
|
|
520 |
suid = ObjectStreamClass.getSerialVersionUID(cl);
|
|
521 |
}
|
|
522 |
}
|
|
523 |
|
|
524 |
|
|
525 |
try {
|
|
526 |
writeReplaceObjectMethod = cl.getDeclaredMethod("writeReplace", noTypesList);
|
|
527 |
if (Modifier.isStatic(writeReplaceObjectMethod.getModifiers())) {
|
|
528 |
writeReplaceObjectMethod = null;
|
|
529 |
} else {
|
|
530 |
writeReplaceObjectMethod.setAccessible(true);
|
|
531 |
}
|
|
532 |
|
|
533 |
} catch (NoSuchMethodException e2) {
|
|
534 |
|
|
535 |
}
|
|
536 |
|
|
537 |
try {
|
|
538 |
readResolveObjectMethod = cl.getDeclaredMethod("readResolve", noTypesList);
|
|
539 |
if (Modifier.isStatic(readResolveObjectMethod.getModifiers())) {
|
|
540 |
readResolveObjectMethod = null;
|
|
541 |
} else {
|
|
542 |
readResolveObjectMethod.setAccessible(true);
|
|
543 |
}
|
|
544 |
|
|
545 |
} catch (NoSuchMethodException e2) {
|
|
546 |
|
|
547 |
}
|
|
548 |
|
|
549 |
/* Cache lookup of writeObject and readObject for
|
|
550 |
* Serializable classes. (Do not lookup for
|
|
551 |
* Externalizable)
|
|
552 |
*/
|
|
553 |
|
|
554 |
if (serializable && !forProxyClass) {
|
|
555 |
|
|
556 |
/* Look for the writeObject method
|
|
557 |
* Set the accessible flag on it here. ObjectOutputStream
|
|
558 |
* will call it as necessary.
|
|
559 |
*/
|
|
560 |
try {
|
|
561 |
Class[] args = {java.io.ObjectOutputStream.class};
|
|
562 |
writeObjectMethod = cl.getDeclaredMethod("writeObject", args);
|
|
563 |
hasWriteObjectMethod = true;
|
|
564 |
int mods = writeObjectMethod.getModifiers();
|
|
565 |
|
|
566 |
// Method must be private and non-static
|
|
567 |
if (!Modifier.isPrivate(mods) ||
|
|
568 |
Modifier.isStatic(mods)) {
|
|
569 |
writeObjectMethod = null;
|
|
570 |
hasWriteObjectMethod = false;
|
|
571 |
}
|
|
572 |
|
|
573 |
} catch (NoSuchMethodException e) {
|
|
574 |
}
|
|
575 |
|
|
576 |
/* Look for the readObject method
|
|
577 |
* set the access override and save the reference for
|
|
578 |
* ObjectInputStream so it can all the method directly.
|
|
579 |
*/
|
|
580 |
try {
|
|
581 |
Class[] args = {java.io.ObjectInputStream.class};
|
|
582 |
readObjectMethod = cl.getDeclaredMethod("readObject", args);
|
|
583 |
int mods = readObjectMethod.getModifiers();
|
|
584 |
|
|
585 |
// Method must be private and non-static
|
|
586 |
if (!Modifier.isPrivate(mods) ||
|
|
587 |
Modifier.isStatic(mods)) {
|
|
588 |
readObjectMethod = null;
|
|
589 |
}
|
|
590 |
} catch (NoSuchMethodException e) {
|
|
591 |
}
|
|
592 |
// Compute the structural UID. This must be done after the
|
|
593 |
// calculation for writeObject. Fixed 4/20/2000, eea1
|
|
594 |
// SerialBug 2: to have correct value in RepId
|
|
595 |
}
|
|
596 |
return null;
|
|
597 |
}
|
|
598 |
});
|
|
599 |
}
|
|
600 |
|
|
601 |
actualSuid = computeStructuralUID(this, cl);
|
|
602 |
}
|
|
603 |
|
|
604 |
}
|
|
605 |
|
|
606 |
/*
|
|
607 |
* Create an empty ObjectStreamClass_1_3_1 for a class about to be read.
|
|
608 |
* This is separate from read so ObjectInputStream can assign the
|
|
609 |
* wire handle early, before any nested ObjectStreamClass_1_3_1 might
|
|
610 |
* be read.
|
|
611 |
*/
|
|
612 |
ObjectStreamClass_1_3_1(String n, long s) {
|
|
613 |
name = n;
|
|
614 |
suid = s;
|
|
615 |
superclass = null;
|
|
616 |
}
|
|
617 |
|
|
618 |
private static Object[] translateFields(Object objs[])
|
|
619 |
throws NoSuchFieldException {
|
|
620 |
try{
|
|
621 |
java.io.ObjectStreamField fields[] = (java.io.ObjectStreamField[])objs;
|
|
622 |
Object translation[] = null;
|
|
623 |
|
|
624 |
if (translatedFields == null)
|
|
625 |
translatedFields = new Hashtable();
|
|
626 |
|
|
627 |
translation = (Object[])translatedFields.get(fields);
|
|
628 |
|
|
629 |
if (translation != null)
|
|
630 |
return translation;
|
|
631 |
else {
|
|
632 |
Class osfClass = com.sun.corba.se.impl.orbutil.ObjectStreamField.class;
|
|
633 |
|
|
634 |
translation = (Object[])java.lang.reflect.Array.newInstance(osfClass, objs.length);
|
|
635 |
Object arg[] = new Object[2];
|
|
636 |
Class types[] = {String.class, Class.class};
|
|
637 |
Constructor constructor = osfClass.getDeclaredConstructor(types);
|
|
638 |
for (int i = fields.length -1; i >= 0; i--){
|
|
639 |
arg[0] = fields[i].getName();
|
|
640 |
arg[1] = fields[i].getType();
|
|
641 |
|
|
642 |
translation[i] = constructor.newInstance(arg);
|
|
643 |
}
|
|
644 |
translatedFields.put(fields, translation);
|
|
645 |
|
|
646 |
}
|
|
647 |
|
|
648 |
return (Object[])translation;
|
|
649 |
}
|
|
650 |
catch(Throwable t){
|
|
651 |
throw new NoSuchFieldException();
|
|
652 |
}
|
|
653 |
}
|
|
654 |
|
|
655 |
/* Compare the base class names of streamName and localName.
|
|
656 |
*
|
|
657 |
* @return Return true iff the base class name compare.
|
|
658 |
* @parameter streamName Fully qualified class name.
|
|
659 |
* @parameter localName Fully qualified class name.
|
|
660 |
* @parameter pkgSeparator class names use either '.' or '/'.
|
|
661 |
*
|
|
662 |
* Only compare base class name to allow package renaming.
|
|
663 |
*/
|
|
664 |
static boolean compareClassNames(String streamName,
|
|
665 |
String localName,
|
|
666 |
char pkgSeparator) {
|
|
667 |
/* compare the class names, stripping off package names. */
|
|
668 |
int streamNameIndex = streamName.lastIndexOf(pkgSeparator);
|
|
669 |
if (streamNameIndex < 0)
|
|
670 |
streamNameIndex = 0;
|
|
671 |
|
|
672 |
int localNameIndex = localName.lastIndexOf(pkgSeparator);
|
|
673 |
if (localNameIndex < 0)
|
|
674 |
localNameIndex = 0;
|
|
675 |
|
|
676 |
return streamName.regionMatches(false, streamNameIndex,
|
|
677 |
localName, localNameIndex,
|
|
678 |
streamName.length() - streamNameIndex);
|
|
679 |
}
|
|
680 |
|
|
681 |
/*
|
|
682 |
* Compare the types of two class descriptors.
|
|
683 |
* They match if they have the same class name and suid
|
|
684 |
*/
|
|
685 |
final boolean typeEquals(ObjectStreamClass_1_3_1 other) {
|
|
686 |
return (suid == other.suid) &&
|
|
687 |
compareClassNames(name, other.name, '.');
|
|
688 |
}
|
|
689 |
|
|
690 |
/*
|
|
691 |
* Return the superclass descriptor of this descriptor.
|
|
692 |
*/
|
|
693 |
final void setSuperclass(ObjectStreamClass_1_3_1 s) {
|
|
694 |
superclass = s;
|
|
695 |
}
|
|
696 |
|
|
697 |
/*
|
|
698 |
* Return the superclass descriptor of this descriptor.
|
|
699 |
*/
|
|
700 |
final ObjectStreamClass_1_3_1 getSuperclass() {
|
|
701 |
return superclass;
|
|
702 |
}
|
|
703 |
|
|
704 |
/*
|
|
705 |
* Return whether the class has a writeObject method
|
|
706 |
*/
|
|
707 |
final boolean hasWriteObject() {
|
|
708 |
return hasWriteObjectMethod;
|
|
709 |
}
|
|
710 |
|
|
711 |
final boolean isCustomMarshaled() {
|
|
712 |
return (hasWriteObject() || isExternalizable());
|
|
713 |
}
|
|
714 |
|
|
715 |
/*
|
|
716 |
* Return true if all instances of 'this' Externalizable class
|
|
717 |
* are written in block-data mode from the stream that 'this' was read
|
|
718 |
* from. <p>
|
|
719 |
*
|
|
720 |
* In JDK 1.1, all Externalizable instances are not written
|
|
721 |
* in block-data mode.
|
|
722 |
* In JDK 1.2, all Externalizable instances, by default, are written
|
|
723 |
* in block-data mode and the Externalizable instance is terminated with
|
|
724 |
* tag TC_ENDBLOCKDATA. Change enabled the ability to skip Externalizable
|
|
725 |
* instances.
|
|
726 |
*
|
|
727 |
* IMPLEMENTATION NOTE:
|
|
728 |
* This should have been a mode maintained per stream; however,
|
|
729 |
* for compatibility reasons, it was only possible to record
|
|
730 |
* this change per class. All Externalizable classes within
|
|
731 |
* a given stream should either have this mode enabled or
|
|
732 |
* disabled. This is enforced by not allowing the PROTOCOL_VERSION
|
|
733 |
* of a stream to he changed after any objects have been written.
|
|
734 |
*
|
|
735 |
* @see ObjectOutputStream#useProtocolVersion
|
|
736 |
* @see ObjectStreamConstants#PROTOCOL_VERSION_1
|
|
737 |
* @see ObjectStreamConstants#PROTOCOL_VERSION_2
|
|
738 |
*
|
|
739 |
* @since JDK 1.2
|
|
740 |
*/
|
|
741 |
boolean hasExternalizableBlockDataMode() {
|
|
742 |
return hasExternalizableBlockData;
|
|
743 |
}
|
|
744 |
|
|
745 |
/*
|
|
746 |
* Return the ObjectStreamClass_1_3_1 of the local class this one is based on.
|
|
747 |
*/
|
|
748 |
final ObjectStreamClass_1_3_1 localClassDescriptor() {
|
|
749 |
return localClassDesc;
|
|
750 |
}
|
|
751 |
|
|
752 |
/*
|
|
753 |
* Get the Serializability of the class.
|
|
754 |
*/
|
|
755 |
boolean isSerializable() {
|
|
756 |
return serializable;
|
|
757 |
}
|
|
758 |
|
|
759 |
/*
|
|
760 |
* Get the externalizability of the class.
|
|
761 |
*/
|
|
762 |
boolean isExternalizable() {
|
|
763 |
return externalizable;
|
|
764 |
}
|
|
765 |
|
|
766 |
boolean isNonSerializable() {
|
|
767 |
return ! (externalizable || serializable);
|
|
768 |
}
|
|
769 |
|
|
770 |
/*
|
|
771 |
* Calculate the size of the array needed to store primitive data and the
|
|
772 |
* number of object references to read when reading from the input
|
|
773 |
* stream.
|
|
774 |
*/
|
|
775 |
private void computeFieldInfo() {
|
|
776 |
primBytes = 0;
|
|
777 |
objFields = 0;
|
|
778 |
|
|
779 |
for (int i = 0; i < fields.length; i++ ) {
|
|
780 |
switch (fields[i].getTypeCode()) {
|
|
781 |
case 'B':
|
|
782 |
case 'Z':
|
|
783 |
primBytes += 1;
|
|
784 |
break;
|
|
785 |
case 'C':
|
|
786 |
case 'S':
|
|
787 |
primBytes += 2;
|
|
788 |
break;
|
|
789 |
|
|
790 |
case 'I':
|
|
791 |
case 'F':
|
|
792 |
primBytes += 4;
|
|
793 |
break;
|
|
794 |
case 'J':
|
|
795 |
case 'D' :
|
|
796 |
primBytes += 8;
|
|
797 |
break;
|
|
798 |
|
|
799 |
case 'L':
|
|
800 |
case '[':
|
|
801 |
objFields += 1;
|
|
802 |
break;
|
|
803 |
}
|
|
804 |
}
|
|
805 |
}
|
|
806 |
|
|
807 |
private static long computeStructuralUID(ObjectStreamClass_1_3_1 osc, Class cl) {
|
|
808 |
ByteArrayOutputStream devnull = new ByteArrayOutputStream(512);
|
|
809 |
|
|
810 |
long h = 0;
|
|
811 |
try {
|
|
812 |
|
|
813 |
if ((!java.io.Serializable.class.isAssignableFrom(cl)) ||
|
|
814 |
(cl.isInterface())){
|
|
815 |
return 0;
|
|
816 |
}
|
|
817 |
|
|
818 |
if (java.io.Externalizable.class.isAssignableFrom(cl)) {
|
|
819 |
return 1;
|
|
820 |
}
|
|
821 |
|
|
822 |
MessageDigest md = MessageDigest.getInstance("SHA");
|
|
823 |
DigestOutputStream mdo = new DigestOutputStream(devnull, md);
|
|
824 |
DataOutputStream data = new DataOutputStream(mdo);
|
|
825 |
|
|
826 |
// Get SUID of parent
|
|
827 |
Class parent = cl.getSuperclass();
|
|
828 |
if ((parent != null))
|
|
829 |
// SerialBug 1; acc. to spec the one for
|
|
830 |
// java.lang.object
|
|
831 |
// should be computed and put
|
|
832 |
// && (parent != java.lang.Object.class))
|
|
833 |
{
|
|
834 |
//data.writeLong(computeSerialVersionUID(null,parent));
|
|
835 |
data.writeLong(computeStructuralUID(lookup(parent), parent));
|
|
836 |
}
|
|
837 |
|
|
838 |
if (osc.hasWriteObject())
|
|
839 |
data.writeInt(2);
|
|
840 |
else
|
|
841 |
data.writeInt(1);
|
|
842 |
|
|
843 |
/* Sort the field names to get a deterministic order */
|
|
844 |
// Field[] field = ObjectStreamClass_1_3_1.getDeclaredFields(cl);
|
|
845 |
|
|
846 |
ObjectStreamField[] fields = osc.getFields();
|
|
847 |
|
|
848 |
// Must make sure that the Field array we allocate
|
|
849 |
// below is exactly the right size. Bug fix for
|
|
850 |
// 4397133.
|
|
851 |
int numNonNullFields = 0;
|
|
852 |
for (int i = 0; i < fields.length; i++)
|
|
853 |
if (fields[i].getField() != null)
|
|
854 |
numNonNullFields++;
|
|
855 |
|
|
856 |
Field [] field = new java.lang.reflect.Field[numNonNullFields];
|
|
857 |
for (int i = 0, fieldNum = 0; i < fields.length; i++) {
|
|
858 |
if (fields[i].getField() != null) {
|
|
859 |
field[fieldNum++] = fields[i].getField();
|
|
860 |
}
|
|
861 |
}
|
|
862 |
|
|
863 |
if (field.length > 1)
|
|
864 |
Arrays.sort(field, compareMemberByName);
|
|
865 |
|
|
866 |
for (int i = 0; i < field.length; i++) {
|
|
867 |
Field f = field[i];
|
|
868 |
|
|
869 |
/* Include in the hash all fields except those that are
|
|
870 |
* transient
|
|
871 |
*/
|
|
872 |
int m = f.getModifiers();
|
|
873 |
//Serial 6
|
|
874 |
//if (Modifier.isTransient(m) || Modifier.isStatic(m))
|
|
875 |
// spec reference 00-01-06.pdf, 1.3.5.6, states non-static
|
|
876 |
// non-transient, public fields are mapped to Java IDL.
|
|
877 |
//
|
|
878 |
// Here's the quote from the first paragraph:
|
|
879 |
// Java non-static non-transient public fields are mapped to
|
|
880 |
// OMG IDL public data members, and other Java fields are
|
|
881 |
// not mapped.
|
|
882 |
|
|
883 |
// if (Modifier.isTransient(m) || Modifier.isStatic(m))
|
|
884 |
// continue;
|
|
885 |
|
|
886 |
data.writeUTF(f.getName());
|
|
887 |
data.writeUTF(getSignature(f.getType()));
|
|
888 |
}
|
|
889 |
|
|
890 |
/* Compute the hash value for this class.
|
|
891 |
* Use only the first 64 bits of the hash.
|
|
892 |
*/
|
|
893 |
data.flush();
|
|
894 |
byte hasharray[] = md.digest();
|
|
895 |
// int minimum = Math.min(8, hasharray.length);
|
|
896 |
// SerialBug 3: SHA computation is wrong; for loop reversed
|
|
897 |
//for (int i = minimum; i > 0; i--)
|
|
898 |
for (int i = 0; i < Math.min(8, hasharray.length); i++) {
|
|
899 |
h += (long)(hasharray[i] & 255) << (i * 8);
|
|
900 |
}
|
|
901 |
} catch (IOException ignore) {
|
|
902 |
/* can't happen, but be deterministic anyway. */
|
|
903 |
h = -1;
|
|
904 |
} catch (NoSuchAlgorithmException complain) {
|
|
905 |
throw new SecurityException(complain.getMessage());
|
|
906 |
}
|
|
907 |
return h;
|
|
908 |
}
|
|
909 |
|
|
910 |
/**
|
|
911 |
* Compute the JVM signature for the class.
|
|
912 |
*/
|
|
913 |
static String getSignature(Class clazz) {
|
|
914 |
String type = null;
|
|
915 |
if (clazz.isArray()) {
|
|
916 |
Class cl = clazz;
|
|
917 |
int dimensions = 0;
|
|
918 |
while (cl.isArray()) {
|
|
919 |
dimensions++;
|
|
920 |
cl = cl.getComponentType();
|
|
921 |
}
|
|
922 |
StringBuffer sb = new StringBuffer();
|
|
923 |
for (int i = 0; i < dimensions; i++) {
|
|
924 |
sb.append("[");
|
|
925 |
}
|
|
926 |
sb.append(getSignature(cl));
|
|
927 |
type = sb.toString();
|
|
928 |
} else if (clazz.isPrimitive()) {
|
|
929 |
if (clazz == Integer.TYPE) {
|
|
930 |
type = "I";
|
|
931 |
} else if (clazz == Byte.TYPE) {
|
|
932 |
type = "B";
|
|
933 |
} else if (clazz == Long.TYPE) {
|
|
934 |
type = "J";
|
|
935 |
} else if (clazz == Float.TYPE) {
|
|
936 |
type = "F";
|
|
937 |
} else if (clazz == Double.TYPE) {
|
|
938 |
type = "D";
|
|
939 |
} else if (clazz == Short.TYPE) {
|
|
940 |
type = "S";
|
|
941 |
} else if (clazz == Character.TYPE) {
|
|
942 |
type = "C";
|
|
943 |
} else if (clazz == Boolean.TYPE) {
|
|
944 |
type = "Z";
|
|
945 |
} else if (clazz == Void.TYPE) {
|
|
946 |
type = "V";
|
|
947 |
}
|
|
948 |
} else {
|
|
949 |
type = "L" + clazz.getName().replace('.', '/') + ";";
|
|
950 |
}
|
|
951 |
return type;
|
|
952 |
}
|
|
953 |
|
|
954 |
/*
|
|
955 |
* Compute the JVM method descriptor for the method.
|
|
956 |
*/
|
|
957 |
static String getSignature(Method meth) {
|
|
958 |
StringBuffer sb = new StringBuffer();
|
|
959 |
|
|
960 |
sb.append("(");
|
|
961 |
|
|
962 |
Class[] params = meth.getParameterTypes(); // avoid clone
|
|
963 |
for (int j = 0; j < params.length; j++) {
|
|
964 |
sb.append(getSignature(params[j]));
|
|
965 |
}
|
|
966 |
sb.append(")");
|
|
967 |
sb.append(getSignature(meth.getReturnType()));
|
|
968 |
return sb.toString();
|
|
969 |
}
|
|
970 |
|
|
971 |
/*
|
|
972 |
* Compute the JVM constructor descriptor for the constructor.
|
|
973 |
*/
|
|
974 |
static String getSignature(Constructor cons) {
|
|
975 |
StringBuffer sb = new StringBuffer();
|
|
976 |
|
|
977 |
sb.append("(");
|
|
978 |
|
|
979 |
Class[] params = cons.getParameterTypes(); // avoid clone
|
|
980 |
for (int j = 0; j < params.length; j++) {
|
|
981 |
sb.append(getSignature(params[j]));
|
|
982 |
}
|
|
983 |
sb.append(")V");
|
|
984 |
return sb.toString();
|
|
985 |
}
|
|
986 |
|
|
987 |
/*
|
|
988 |
* Cache of Class -> ClassDescriptor Mappings.
|
|
989 |
*/
|
|
990 |
static private ObjectStreamClassEntry[] descriptorFor = new ObjectStreamClassEntry[61];
|
|
991 |
|
|
992 |
/*
|
|
993 |
* findDescriptorFor a Class. This looks in the cache for a
|
|
994 |
* mapping from Class -> ObjectStreamClass mappings. The hashCode
|
|
995 |
* of the Class is used for the lookup since the Class is the key.
|
|
996 |
* The entries are extended from java.lang.ref.SoftReference so the
|
|
997 |
* gc will be able to free them if needed.
|
|
998 |
*/
|
|
999 |
private static ObjectStreamClass_1_3_1 findDescriptorFor(Class cl) {
|
|
1000 |
|
|
1001 |
int hash = cl.hashCode();
|
|
1002 |
int index = (hash & 0x7FFFFFFF) % descriptorFor.length;
|
|
1003 |
ObjectStreamClassEntry e;
|
|
1004 |
ObjectStreamClassEntry prev;
|
|
1005 |
|
|
1006 |
/* Free any initial entries whose refs have been cleared */
|
|
1007 |
while ((e = descriptorFor[index]) != null && e.get() == null) {
|
|
1008 |
descriptorFor[index] = e.next;
|
|
1009 |
}
|
|
1010 |
|
|
1011 |
/* Traverse the chain looking for a descriptor with ofClass == cl.
|
|
1012 |
* unlink entries that are unresolved.
|
|
1013 |
*/
|
|
1014 |
prev = e;
|
|
1015 |
while (e != null ) {
|
|
1016 |
ObjectStreamClass_1_3_1 desc = (ObjectStreamClass_1_3_1)(e.get());
|
|
1017 |
if (desc == null) {
|
|
1018 |
// This entry has been cleared, unlink it
|
|
1019 |
prev.next = e.next;
|
|
1020 |
} else {
|
|
1021 |
if (desc.ofClass == cl)
|
|
1022 |
return desc;
|
|
1023 |
prev = e;
|
|
1024 |
}
|
|
1025 |
e = e.next;
|
|
1026 |
}
|
|
1027 |
return null;
|
|
1028 |
}
|
|
1029 |
|
|
1030 |
/*
|
|
1031 |
* insertDescriptorFor a Class -> ObjectStreamClass_1_3_1 mapping.
|
|
1032 |
*/
|
|
1033 |
private static void insertDescriptorFor(ObjectStreamClass_1_3_1 desc) {
|
|
1034 |
// Make sure not already present
|
|
1035 |
if (findDescriptorFor(desc.ofClass) != null) {
|
|
1036 |
return;
|
|
1037 |
}
|
|
1038 |
|
|
1039 |
int hash = desc.ofClass.hashCode();
|
|
1040 |
int index = (hash & 0x7FFFFFFF) % descriptorFor.length;
|
|
1041 |
ObjectStreamClassEntry e = new ObjectStreamClassEntry(desc);
|
|
1042 |
e.next = descriptorFor[index];
|
|
1043 |
descriptorFor[index] = e;
|
|
1044 |
}
|
|
1045 |
|
|
1046 |
private static Field[] getDeclaredFields(final Class clz) {
|
|
1047 |
return (Field[]) AccessController.doPrivileged(new PrivilegedAction() {
|
|
1048 |
public Object run() {
|
|
1049 |
return clz.getDeclaredFields();
|
|
1050 |
}
|
|
1051 |
});
|
|
1052 |
}
|
|
1053 |
|
|
1054 |
|
|
1055 |
/*
|
|
1056 |
* The name of this descriptor
|
|
1057 |
*/
|
|
1058 |
private String name;
|
|
1059 |
|
|
1060 |
/*
|
|
1061 |
* The descriptor of the supertype.
|
|
1062 |
*/
|
|
1063 |
private ObjectStreamClass_1_3_1 superclass;
|
|
1064 |
|
|
1065 |
/*
|
|
1066 |
* Flags for Serializable and Externalizable.
|
|
1067 |
*/
|
|
1068 |
private boolean serializable;
|
|
1069 |
private boolean externalizable;
|
|
1070 |
|
|
1071 |
/*
|
|
1072 |
* Array of persistent fields of this class, sorted by
|
|
1073 |
* type and name.
|
|
1074 |
*/
|
|
1075 |
private ObjectStreamField[] fields;
|
|
1076 |
|
|
1077 |
/*
|
|
1078 |
* Class that is a descriptor for in this virtual machine.
|
|
1079 |
*/
|
|
1080 |
private Class ofClass;
|
|
1081 |
|
|
1082 |
/*
|
|
1083 |
* True if descriptor for a proxy class.
|
|
1084 |
*/
|
|
1085 |
boolean forProxyClass;
|
|
1086 |
|
|
1087 |
|
|
1088 |
/*
|
|
1089 |
* SerialVersionUID for this class.
|
|
1090 |
*/
|
|
1091 |
private long suid = kDefaultUID;
|
|
1092 |
private String suidStr = null;
|
|
1093 |
|
|
1094 |
/*
|
|
1095 |
* Actual (computed) SerialVersionUID for this class.
|
|
1096 |
*/
|
|
1097 |
private long actualSuid = kDefaultUID;
|
|
1098 |
private String actualSuidStr = null;
|
|
1099 |
|
|
1100 |
/*
|
|
1101 |
* The total number of bytes of primitive fields.
|
|
1102 |
* The total number of object fields.
|
|
1103 |
*/
|
|
1104 |
int primBytes;
|
|
1105 |
int objFields;
|
|
1106 |
|
|
1107 |
/* Internal lock object. */
|
|
1108 |
private Object lock = new Object();
|
|
1109 |
|
|
1110 |
/* True if this class has/had a writeObject method */
|
|
1111 |
private boolean hasWriteObjectMethod;
|
|
1112 |
|
|
1113 |
/* In JDK 1.1, external data was not written in block mode.
|
|
1114 |
* As of JDK 1.2, external data is written in block data mode. This
|
|
1115 |
* flag enables JDK 1.2 to be able to read JDK 1.1 written external data.
|
|
1116 |
*
|
|
1117 |
* @since JDK 1.2
|
|
1118 |
*/
|
|
1119 |
private boolean hasExternalizableBlockData;
|
|
1120 |
Method writeObjectMethod;
|
|
1121 |
Method readObjectMethod;
|
|
1122 |
private Method writeReplaceObjectMethod;
|
|
1123 |
private Method readResolveObjectMethod;
|
|
1124 |
|
|
1125 |
/*
|
|
1126 |
* ObjectStreamClass_1_3_1 that this one was built from.
|
|
1127 |
*/
|
|
1128 |
private ObjectStreamClass_1_3_1 localClassDesc;
|
|
1129 |
|
|
1130 |
/* Get the private static final field for serial version UID */
|
|
1131 |
// private static native long getSerialVersionUIDField(Class cl);
|
|
1132 |
|
|
1133 |
/* The Class Object for java.io.Serializable */
|
|
1134 |
private static Class classSerializable = null;
|
|
1135 |
private static Class classExternalizable = null;
|
|
1136 |
|
|
1137 |
/*
|
|
1138 |
* Resolve java.io.Serializable at load time.
|
|
1139 |
*/
|
|
1140 |
static {
|
|
1141 |
try {
|
|
1142 |
classSerializable = Class.forName("java.io.Serializable");
|
|
1143 |
classExternalizable = Class.forName("java.io.Externalizable");
|
|
1144 |
} catch (Throwable e) {
|
|
1145 |
System.err.println("Could not load java.io.Serializable or java.io.Externalizable.");
|
|
1146 |
}
|
|
1147 |
}
|
|
1148 |
|
|
1149 |
/** use serialVersionUID from JDK 1.1. for interoperability */
|
|
1150 |
private static final long serialVersionUID = -6120832682080437368L;
|
|
1151 |
|
|
1152 |
/**
|
|
1153 |
* Set serialPersistentFields of a Serializable class to this value to
|
|
1154 |
* denote that the class has no Serializable fields.
|
|
1155 |
*/
|
|
1156 |
public static final ObjectStreamField[] NO_FIELDS =
|
|
1157 |
new ObjectStreamField[0];
|
|
1158 |
|
|
1159 |
/*
|
|
1160 |
* Entries held in the Cache of known ObjectStreamClass_1_3_1 objects.
|
|
1161 |
* Entries are chained together with the same hash value (modulo array size).
|
|
1162 |
*/
|
|
1163 |
private static class ObjectStreamClassEntry // extends java.lang.ref.SoftReference
|
|
1164 |
{
|
|
1165 |
ObjectStreamClassEntry(ObjectStreamClass_1_3_1 c) {
|
|
1166 |
//super(c);
|
|
1167 |
this.c = c;
|
|
1168 |
}
|
|
1169 |
ObjectStreamClassEntry next;
|
|
1170 |
|
|
1171 |
public Object get()
|
|
1172 |
{
|
|
1173 |
return c;
|
|
1174 |
}
|
|
1175 |
private ObjectStreamClass_1_3_1 c;
|
|
1176 |
}
|
|
1177 |
|
|
1178 |
/*
|
|
1179 |
* Comparator object for Classes and Interfaces
|
|
1180 |
*/
|
|
1181 |
private static Comparator compareClassByName =
|
|
1182 |
new CompareClassByName();
|
|
1183 |
|
|
1184 |
private static class CompareClassByName implements Comparator {
|
|
1185 |
public int compare(Object o1, Object o2) {
|
|
1186 |
Class c1 = (Class)o1;
|
|
1187 |
Class c2 = (Class)o2;
|
|
1188 |
return (c1.getName()).compareTo(c2.getName());
|
|
1189 |
}
|
|
1190 |
}
|
|
1191 |
|
|
1192 |
/*
|
|
1193 |
* Comparator object for Members, Fields, and Methods
|
|
1194 |
*/
|
|
1195 |
private static Comparator compareMemberByName =
|
|
1196 |
new CompareMemberByName();
|
|
1197 |
|
|
1198 |
private static class CompareMemberByName implements Comparator {
|
|
1199 |
public int compare(Object o1, Object o2) {
|
|
1200 |
String s1 = ((Member)o1).getName();
|
|
1201 |
String s2 = ((Member)o2).getName();
|
|
1202 |
|
|
1203 |
if (o1 instanceof Method) {
|
|
1204 |
s1 += getSignature((Method)o1);
|
|
1205 |
s2 += getSignature((Method)o2);
|
|
1206 |
} else if (o1 instanceof Constructor) {
|
|
1207 |
s1 += getSignature((Constructor)o1);
|
|
1208 |
s2 += getSignature((Constructor)o2);
|
|
1209 |
}
|
|
1210 |
return s1.compareTo(s2);
|
|
1211 |
}
|
|
1212 |
}
|
|
1213 |
|
|
1214 |
/* It is expensive to recompute a method or constructor signature
|
|
1215 |
many times, so compute it only once using this data structure. */
|
|
1216 |
private static class MethodSignature implements Comparator {
|
|
1217 |
Member member;
|
|
1218 |
String signature; // cached parameter signature
|
|
1219 |
|
|
1220 |
/* Given an array of Method or Constructor members,
|
|
1221 |
return a sorted array of the non-private members.*/
|
|
1222 |
/* A better implementation would be to implement the returned data
|
|
1223 |
structure as an insertion sorted link list.*/
|
|
1224 |
static MethodSignature[] removePrivateAndSort(Member[] m) {
|
|
1225 |
int numNonPrivate = 0;
|
|
1226 |
for (int i = 0; i < m.length; i++) {
|
|
1227 |
if (! Modifier.isPrivate(m[i].getModifiers())) {
|
|
1228 |
numNonPrivate++;
|
|
1229 |
}
|
|
1230 |
}
|
|
1231 |
MethodSignature[] cm = new MethodSignature[numNonPrivate];
|
|
1232 |
int cmi = 0;
|
|
1233 |
for (int i = 0; i < m.length; i++) {
|
|
1234 |
if (! Modifier.isPrivate(m[i].getModifiers())) {
|
|
1235 |
cm[cmi] = new MethodSignature(m[i]);
|
|
1236 |
cmi++;
|
|
1237 |
}
|
|
1238 |
}
|
|
1239 |
if (cmi > 0)
|
|
1240 |
Arrays.sort(cm, cm[0]);
|
|
1241 |
return cm;
|
|
1242 |
}
|
|
1243 |
|
|
1244 |
/* Assumes that o1 and o2 are either both methods
|
|
1245 |
or both constructors.*/
|
|
1246 |
public int compare(Object o1, Object o2) {
|
|
1247 |
/* Arrays.sort calls compare when o1 and o2 are equal.*/
|
|
1248 |
if (o1 == o2)
|
|
1249 |
return 0;
|
|
1250 |
|
|
1251 |
MethodSignature c1 = (MethodSignature)o1;
|
|
1252 |
MethodSignature c2 = (MethodSignature)o2;
|
|
1253 |
|
|
1254 |
int result;
|
|
1255 |
if (isConstructor()) {
|
|
1256 |
result = c1.signature.compareTo(c2.signature);
|
|
1257 |
} else { // is a Method.
|
|
1258 |
result = c1.member.getName().compareTo(c2.member.getName());
|
|
1259 |
if (result == 0)
|
|
1260 |
result = c1.signature.compareTo(c2.signature);
|
|
1261 |
}
|
|
1262 |
return result;
|
|
1263 |
}
|
|
1264 |
|
|
1265 |
final private boolean isConstructor() {
|
|
1266 |
return member instanceof Constructor;
|
|
1267 |
}
|
|
1268 |
private MethodSignature(Member m) {
|
|
1269 |
member = m;
|
|
1270 |
if (isConstructor()) {
|
|
1271 |
signature = ObjectStreamClass_1_3_1.getSignature((Constructor)m);
|
|
1272 |
} else {
|
|
1273 |
signature = ObjectStreamClass_1_3_1.getSignature((Method)m);
|
|
1274 |
}
|
|
1275 |
}
|
|
1276 |
}
|
|
1277 |
}
|