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diff --git a/libjava/classpath/java/util/prefs/NodeChangeEvent.java b/libjava/classpath/java/util/prefs/NodeChangeEvent.java
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--- a/libjava/classpath/java/util/prefs/NodeChangeEvent.java
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-/* NodeChangeEvent - ObjectEvent fired when a Preference node is added/removed
- Copyright (C) 2001, 2006 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath 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 for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-package java.util.prefs;
-
-import java.io.IOException;
-import java.io.NotSerializableException;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
-import java.util.EventObject;
-
-/**
- * ObjectEvent fired when a Preference node is added/removed.
- * This event is only generated when a new subnode is added or a subnode is
- * removed from a preference node. Changes in the entries of a preference node
- * are indicated with a <code>PreferenceChangeEvent</code>.
- * <p>
- * Note that although this class is marked as serializable, attempts to
- * serialize it will fail with NotSerializableException.
- *
- * @since 1.4
- * @author Mark Wielaard (mark@klomp.org)
- */
-public class NodeChangeEvent extends EventObject {
-
- // We have this to placate the compiler.
- private static final long serialVersionUID =8068949086596572957L;
-
- /**
- * The sub node that was added or removed.
- * Defined transient just like <code>EventObject.source</code> since
- * this object should be serializable, but Preferences is in general not
- * serializable.
- */
- private final transient Preferences child;
-
- /**
- * Creates a new NodeChangeEvent.
- *
- * @param parentNode The source preference node from which a subnode was
- * added or removed
- * @param childNode The preference node that was added or removed
- */
- public NodeChangeEvent(Preferences parentNode, Preferences childNode) {
- super(parentNode);
- child = childNode;
- }
-
- /**
- * Returns the source parent preference node from which a subnode was
- * added or removed.
- */
- public Preferences getParent() {
- return (Preferences) source;
- }
-
- /**
- * Returns the child preference subnode that was added or removed.
- * To see wether it is still a valid preference node one has to call
- * <code>event.getChild().nodeExists("")</code>.
- */
- public Preferences getChild() {
- return child;
- }
-
- private void readObject(ObjectInputStream ois)
- throws IOException
- {
- throw new NotSerializableException("LineEvent is not serializable");
- }
-
- private void writeObject(ObjectOutputStream oos)
- throws IOException
- {
- throw new NotSerializableException("LineEvent is not serializable");
- }
-}