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diff --git a/libjava/java/util/prefs/NodeChangeEvent.java b/libjava/java/util/prefs/NodeChangeEvent.java
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+/* NodeChangeEvent - ObjectEvent fired when a Preference node is added/removed
+   Copyright (C) 2001 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., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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.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>.
+ *
+ * @since 1.4
+ * @author Mark Wielaard (mark@klomp.org)
+ */
+public class NodeChangeEvent extends EventObject {
+
+  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;
+    }
+}