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diff --git a/libjava/classpath/javax/swing/DefaultBoundedRangeModel.java b/libjava/classpath/javax/swing/DefaultBoundedRangeModel.java
new file mode 100644
index 000000000..c1d0fe74a
--- /dev/null
+++ b/libjava/classpath/javax/swing/DefaultBoundedRangeModel.java
@@ -0,0 +1,475 @@
+/* DefaultBoundedRangeModel.java -- Default implementation
+   of BoundedRangeModel.
+   Copyright (C) 2002, 2004, 2005, 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.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+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 <code>BoundedRangeModel</code>.
+ *
+ * @author Andrew Selkirk (aselkirk@sympatico.ca)
+ * @author Sascha Brawer (brawer@dandelis.ch)
+ */
+public class DefaultBoundedRangeModel
+  implements BoundedRangeModel, Serializable
+{
+  /**
+   * The identifier of this class in object serialization. Verified
+   * using the serialver tool of Sun J2SE 1.4.1_01.
+   */
+  private static final long serialVersionUID = 5034068491295259790L;
+
+  /**
+   * An event that is sent to all registered {@link ChangeListener}s
+   * when the state of this range model has changed.
+   *
+   * <p>The event object is created on demand, the first time it
+   * is actually needed.</p>
+   *
+   * @see #fireStateChanged()
+   */
+  protected transient ChangeEvent changeEvent;
+
+  /**
+   * The list of the currently registered EventListeners.
+   */
+  protected EventListenerList listenerList = new EventListenerList();
+
+  /**
+   * The current value of the range model, which is always between
+   * {@link #minimum} and ({@link #maximum} - {@link #extent}). In a
+   * scroll bar visualization of a {@link BoundedRangeModel}, the
+   * <code>value</code> is displayed as the position of the thumb.
+   */
+  private int value;
+
+  /**
+   * The current extent of the range model, which is a number greater
+   * than or equal to zero. In a scroll bar visualization of a {@link
+   * BoundedRangeModel}, the <code>extent</code> is displayed as the
+   * size of the thumb.
+   */
+  private int extent;
+
+  /**
+   * The current minimum value of the range model, which is always
+   * less than or equal to {@link #maximum}.
+   */
+  private int minimum;
+
+  /**
+   * The current maximum value of the range model, which is always
+   * greater than or equal to {@link #minimum}.
+   */
+  private int maximum;
+
+  /**
+   * A property that indicates whether the value of this {@link
+   * BoundedRangeModel} is going to change in the immediate future.
+   */
+  private boolean isAdjusting;
+
+  /**
+   * Constructs a <code>DefaultBoundedRangeModel</code> with default
+   * values for the properties. The properties <code>value</code>,
+   * <code>extent</code> and <code>minimum</code> will be initialized
+   * to zero; <code>maximum</code> will be set to 100; the property
+   * <code>valueIsAdjusting</code> will be <code>false</code>.
+   */
+  public DefaultBoundedRangeModel()
+  {
+    // The fields value, extent, minimum have the default value 0, and
+    // isAdjusting is already false. These fields no not need to be
+    // set explicitly.
+    maximum = 100;
+  }
+
+  /**
+   * Constructs a <code>DefaultBoundedRangeModel</code> with the
+   * specified values for some properties.
+   *
+   * @param value the initial value of the range model, which must be
+   *     a number between <code>minimum</code> and <code>(maximum -
+   *     extent)</code>. In a scroll bar visualization of a {@link
+   *     BoundedRangeModel}, the <code>value</code> is displayed as the
+   *     position of the thumb.
+   * @param extent the initial extent of the range model, which is a
+   *     number greater than or equal to zero. In a scroll bar
+   *     visualization of a {@link BoundedRangeModel}, the
+   *     <code>extent</code> is displayed as the size of the thumb.
+   * @param minimum the initial minimal value of the range model.
+   * @param maximum the initial maximal value of the range model.
+   *
+   * @throws IllegalArgumentException if the following condition is
+   *     not satisfied: <code>minimum &lt;= value &lt;= value + extent &lt;=
+   *     maximum</code>.
+   */
+  public DefaultBoundedRangeModel(int value, int extent, int minimum,
+                                  int maximum)
+  {
+    if (!(minimum <= value && extent >= 0 && (value + extent) <= maximum))
+      throw new IllegalArgumentException();
+
+    this.value = value;
+    this.extent = extent;
+    this.minimum = minimum;
+    this.maximum = maximum;
+
+    // The isAdjusting field already has a false value by default.
+  }
+
+  /**
+   * Returns a string with all relevant properties of this range
+   * model.
+   *
+   * @return a string representing the object
+   */
+  public String toString()
+  {
+    return getClass().getName()
+      + "[value=" + value
+      + ", extent=" + extent
+      + ", min=" + minimum
+      + ", max=" + maximum
+      + ", adj=" + isAdjusting
+      + ']';
+  }
+
+  /**
+   * Returns the current value of this bounded range model.  In a
+   * scroll bar visualization of a {@link BoundedRangeModel}, the
+   * <code>value</code> is displayed as the position of the thumb.
+   *
+   * @return the value
+   */
+  public int getValue()
+  {
+    return value;
+  }
+
+  /**
+   * Changes the current value of this bounded range model. In a
+   * scroll bar visualization of a {@link BoundedRangeModel}, the
+   * <code>value</code> is displayed as the position of the thumb;
+   * changing the <code>value</code> of a scroll bar's model
+   * thus moves the thumb to a different position.
+   *
+   * @param value the value
+   */
+  public void setValue(int value)
+  {
+    value = Math.max(minimum, value);
+    if (value + extent > maximum)
+      value = maximum - extent;
+
+    if (value != this.value)
+      {
+        this.value = value;
+        fireStateChanged();
+      }
+  }
+
+  /**
+   * Returns the current extent of this bounded range model, which is
+   * a number greater than or equal to zero. In a scroll bar
+   * visualization of a {@link BoundedRangeModel}, the
+   * <code>extent</code> is displayed as the size of the thumb.
+   *
+   * @return the extent
+   */
+  public int getExtent()
+  {
+    return extent;
+  }
+
+  /**
+   * Changes the current extent of this bounded range model. In a
+   * scroll bar visualization of a {@link BoundedRangeModel}, the
+   * <code>extent</code> is displayed as the size of the thumb.
+   *
+   * @param extent the new extent of the range model, which is a
+   *     number greater than or equal to zero.
+   */
+  public void setExtent(int extent)
+  {
+    extent = Math.max(extent, 0);
+    if (value + extent > maximum)
+      extent = maximum - value;
+
+    if (extent != this.extent)
+      {
+        this.extent = extent;
+        fireStateChanged();
+      }
+  }
+
+  /**
+   * Returns the current minimal value of this bounded range model.
+   */
+  public int getMinimum()
+  {
+    return minimum;
+  }
+
+  /**
+   * Changes the current minimal value of this bounded range model.
+   *
+   * @param minimum the new minimal value.
+   */
+  public void setMinimum(int minimum)
+  {
+    int value, maximum;
+
+    maximum = Math.max(minimum, this.maximum);
+    value = Math.max(minimum, this.value);
+
+    setRangeProperties(value, extent, minimum, maximum, isAdjusting);
+  }
+
+  /**
+   * Returns the current maximal value of this bounded range model.
+   *
+   * @return the maximum
+   */
+  public int getMaximum()
+  {
+    return maximum;
+  }
+
+  /**
+   * Changes the current maximal value of this bounded range model.
+   *
+   * @param maximum the new maximal value.
+   */
+  public void setMaximum(int maximum)
+  {
+    int value, extent, minimum;
+
+    minimum = Math.min(this.minimum, maximum);
+    extent = Math.min(this.extent, maximum - minimum);
+    value = Math.min(this.value, maximum - extent);
+
+    setRangeProperties(value, extent, minimum, maximum, isAdjusting);
+  }
+
+  /**
+   * Returns whether or not the value of this bounded range model is
+   * going to change in the immediate future. Scroll bars set this
+   * property to <code>true</code> while the thumb is being dragged
+   * around; when the mouse is relased, they set the property to
+   * <code>false</code> and post a final {@link ChangeEvent}.
+   *
+   * @return <code>true</code> if the value will change soon again;
+   *     <code>false</code> if the value will probably not change soon.
+   */
+  public boolean getValueIsAdjusting()
+  {
+    return isAdjusting;
+  }
+
+  /**
+   * Specifies whether or not the value of this bounded range model is
+   * going to change in the immediate future. Scroll bars set this
+   * property to <code>true</code> while the thumb is being dragged
+   * around; when the mouse is relased, they set the property to
+   * <code>false</code>.
+   *
+   * @param isAdjusting <code>true</code> if the value will change
+   *     soon again; <code>false</code> if the value will probably not
+   *     change soon.
+   */
+  public void setValueIsAdjusting(boolean isAdjusting)
+  {
+    if (isAdjusting == this.isAdjusting)
+      return;
+
+    this.isAdjusting = isAdjusting;
+    fireStateChanged();
+  }
+
+  /**
+   * Sets all properties.
+   *
+   * @param value the new value of the range model.  In a scroll bar
+   *     visualization of a {@link BoundedRangeModel}, the
+   *     <code>value</code> is displayed as the position of the thumb.
+   * @param extent the new extent of the range model, which is a
+   *     number greater than or equal to zero. In a scroll bar
+   *     visualization of a {@link BoundedRangeModel}, the
+   *     <code>extent</code> is displayed as the size of the thumb.
+   * @param minimum the new minimal value of the range model.
+   * @param maximum the new maximal value of the range model.
+   * @param isAdjusting whether or not the value of this bounded range
+   *     model is going to change in the immediate future. Scroll bars set
+   *     this property to <code>true</code> while the thumb is being
+   *     dragged around; when the mouse is relased, they set the property
+   *     to <code>false</code>.
+   */
+  public void setRangeProperties(int value, int extent, int minimum,
+                                 int maximum, boolean isAdjusting)
+  {
+    minimum = Math.min(Math.min(minimum, maximum), value);
+    maximum = Math.max(value, maximum);
+    if (extent + value > maximum)
+      extent = maximum - value;
+    extent = Math.max(0, extent);
+
+    if ((value == this.value)
+        && (extent == this.extent)
+        && (minimum == this.minimum)
+        && (maximum == this.maximum)
+        && (isAdjusting == this.isAdjusting))
+      return;
+
+    this.value = value;
+    this.extent = extent;
+    this.minimum = minimum;
+    this.maximum = maximum;
+    this.isAdjusting = isAdjusting;
+
+    fireStateChanged();
+  }
+
+  /**
+   * Subscribes a ChangeListener to state changes.
+   *
+   * @param listener the listener to be subscribed.
+   */
+  public void addChangeListener(ChangeListener listener)
+  {
+    listenerList.add(ChangeListener.class, listener);
+  }
+
+  /**
+   * Cancels the subscription of a ChangeListener.
+   *
+   * @param listener the listener to be unsubscribed.
+   */
+  public void removeChangeListener(ChangeListener listener)
+  {
+    listenerList.remove(ChangeListener.class, listener);
+  }
+
+  /**
+   * Sends a {@link ChangeEvent} to any registered {@link
+   * ChangeListener}s.
+   *
+   * @see #addChangeListener(ChangeListener)
+   * @see #removeChangeListener(ChangeListener)
+   */
+  protected void fireStateChanged()
+  {
+    ChangeListener[] listeners = getChangeListeners();
+
+    if (changeEvent == null)
+      changeEvent = new ChangeEvent(this);
+
+    for (int i = listeners.length - 1; i >= 0; --i)
+      listeners[i].stateChanged(changeEvent);
+  }
+
+  /**
+   * Retrieves the current listeners of the specified class.
+   *
+   * @param listenerType the class of listeners; usually {@link
+   *     ChangeListener}<code>.class</code>.
+   *
+   * @return an array with the currently subscribed listeners, or
+   *     an empty array if there are currently no listeners.
+   *
+   * @since 1.3
+   */
+  public <T extends EventListener> T[] getListeners(Class<T> listenerType)
+  {
+    return listenerList.getListeners(listenerType);
+  }
+
+  /**
+   * Returns all <code>ChangeListeners</code> that are currently
+   * subscribed for changes to this
+   * <code>DefaultBoundedRangeModel</code>.
+   *
+   * @return an array with the currently subscribed listeners, or
+   *     an empty array if there are currently no listeners.
+   *
+   * @since 1.4
+   */
+  public ChangeListener[] getChangeListeners()
+  {
+    return (ChangeListener[]) getListeners(ChangeListener.class);
+  }
+
+  /**
+   * Provides serialization support.
+   *
+   * @param stream  the output stream (<code>null</code> not permitted).
+   *
+   * @throws IOException  if there is an I/O error.
+   */
+  private void writeObject(ObjectOutputStream stream)
+    throws IOException
+  {
+    stream.defaultWriteObject();
+  }
+
+  /**
+   * Provides serialization support.
+   *
+   * @param stream  the input stream (<code>null</code> not permitted).
+   *
+   * @throws IOException  if there is an I/O error.
+   * @throws ClassNotFoundException  if there is a classpath problem.
+   */
+  private void readObject(ObjectInputStream stream)
+    throws ClassNotFoundException, IOException
+  {
+    stream.defaultReadObject();
+    listenerList = new EventListenerList();
+  }
+
+}