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diff --git a/libjava/classpath/javax/swing/DefaultSingleSelectionModel.java b/libjava/classpath/javax/swing/DefaultSingleSelectionModel.java
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+/* DefaultSingleSelectionModel.java --
+   Copyright (C) 2002, 2004, 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 javax.swing;
+
+import java.io.Serializable;
+import java.util.EventListener;
+
+import javax.swing.event.ChangeEvent;
+import javax.swing.event.ChangeListener;
+import javax.swing.event.EventListenerList;
+
+/**
+ * The default implementation of {@link SingleSelectionModel}, used in
+ * {@link JTabbedPane}, {@link JMenuBar} and {@link JPopupMenu}.
+ *
+ * @author Andrew Selkirk
+ */
+public class DefaultSingleSelectionModel
+  implements SingleSelectionModel, Serializable
+{
+  private static final long serialVersionUID = 3676229404753786004L;
+
+  /**
+   * changeEvent
+   */
+  protected transient ChangeEvent changeEvent;
+
+  /**
+   * listenerList
+   */
+  protected EventListenerList listenerList = new EventListenerList();
+
+  /**
+   * The selected index (or -1 for no selection).
+   */
+  private int index = -1;
+
+  /**
+   * Creates a new <code>DefaultSingleSelectionModel</code> with no current
+   * selection.
+   */
+  public DefaultSingleSelectionModel()
+  {
+    // Do nothing.
+  }
+
+  /**
+   * Returns the selected index or <code>-1</code> if there is no selection.
+   *
+   * @return The selected index.
+   *
+   * @see #setSelectedIndex(int)
+   */
+  public int getSelectedIndex()
+  {
+    return index;
+  }
+
+  /**
+   * Sets the selected index and, if this is different to the previous
+   * selection, sends a {@link ChangeEvent} to all registered listeners.
+   *
+   * @param index  the index (use <code>-1</code> to represent no selection).
+   *
+   * @see #getSelectedIndex()
+   * @see #clearSelection
+   */
+  public void setSelectedIndex(int index)
+  {
+    if (this.index != index)
+      {
+        this.index = index;
+        fireStateChanged();
+      }
+  }
+
+  /**
+   * Clears the selection by setting the selected index to <code>-1</code> and
+   * sends a {@link ChangeEvent} to all registered listeners.  If the selected
+   * index is already <code>-1</code>, this method does nothing.
+   */
+  public void clearSelection()
+  {
+    setSelectedIndex(-1);
+  }
+
+  /**
+   * Returns <code>true</code> if there is a selection, and <code>false</code>
+   * otherwise.
+   *
+   * @return A boolean.
+   */
+  public boolean isSelected()
+  {
+    return index != -1;
+  }
+
+  /**
+   * Registers a listener to receive {@link ChangeEvent} notifications from
+   * this model whenever the selected index changes.
+   *
+   * @param listener the listener to add.
+   */
+  public void addChangeListener(ChangeListener listener)
+  {
+    listenerList.add(ChangeListener.class, listener);
+  }
+
+  /**
+   * Deregisters a listener so that it no longer receives {@link ChangeEvent}
+   * notifications from this model.
+   *
+   * @param listener the listener to remove.
+   */
+  public void removeChangeListener(ChangeListener listener)
+  {
+    listenerList.remove(ChangeListener.class, listener);
+  }
+
+  /**
+   * fireStateChanged
+   */
+  protected void fireStateChanged()
+  {
+    if (changeEvent == null)
+      changeEvent = new ChangeEvent(this);
+    ChangeListener[] listeners = getChangeListeners();
+    for (int i = 0; i < listeners.length; i++)
+      listeners[i].stateChanged(changeEvent);
+  }
+
+  /**
+   * getListeners
+   *
+   * @param listenerClass the type fo listener
+   *
+   * @return an array of listeners
+   *
+   * @since 1.3
+   */
+  public <T extends EventListener> T[] getListeners(Class<T> listenerClass)
+  {
+    return listenerList.getListeners(listenerClass);
+  }
+
+  /**
+   * getChangeListeners
+   *
+   * @since 1.4
+   */
+  public ChangeListener[] getChangeListeners()
+  {
+    return (ChangeListener[]) getListeners(ChangeListener.class);
+  }
+}