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diff --git a/libjava/classpath/javax/swing/SpinnerNumberModel.java b/libjava/classpath/javax/swing/SpinnerNumberModel.java
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+/* SpinnerNumberModel.java --
+   Copyright (C) 2002, 2004 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;
+
+/**
+ * SpinnerNumberModel
+ *
+ * @author Ka-Hing Cheung
+ * @version 1.0
+ */
+public class SpinnerNumberModel extends AbstractSpinnerModel
+  implements Serializable
+{
+  /**
+   * For compatability with Sun's JDK
+   */
+  private static final long serialVersionUID = 7279176385485777821L;
+
+  /** DOCUMENT ME! */
+  private Number value;
+
+  /** DOCUMENT ME! */
+  private Comparable minimum;
+
+  /** DOCUMENT ME! */
+  private Comparable maximum;
+
+  /** DOCUMENT ME! */
+  private Number stepSize;
+
+  /**
+   * Creates a <code>SpinnerNumberModel</code> with initial value 0, step 1,
+   * and no maximum nor minimum.
+   */
+  public SpinnerNumberModel()
+  {
+    this(new Integer(0), null, null, new Integer(1));
+  }
+
+  /**
+   * Creates a <code>SpinnerNumberModel</code> with double precision
+   *
+   * @param value the initial value
+   * @param minimum the minimum value
+   * @param maximum the maximum value
+   * @param stepSize the step size
+   * @throws IllegalArgumentException if minimum &lt;= value &lt;= maximum does not
+   *                                  hold
+   */
+  public SpinnerNumberModel(double value, double minimum, double maximum,
+                            double stepSize)
+  {
+    this(new Double(value), new Double(minimum), new Double(maximum),
+         new Double(stepSize));
+  }
+
+  /**
+   * Creates a <code>SpinnerNumberModel</code> with integer precision
+   *
+   * @param value the initial value
+   * @param minimum the minimum value
+   * @param maximum the maximum value
+   * @param stepSize the step size
+   * @throws IllegalArgumentException if minimum &lt;= value &lt;= maximum does not
+   *                                  hold
+   */
+  public SpinnerNumberModel(int value, int minimum, int maximum, int stepSize)
+  {
+    this(new Integer(value), new Integer(minimum), new Integer(maximum),
+         new Integer(stepSize));
+  }
+
+  /**
+   * Creates a <code>SpinnerNumberModel</code> with <code>Number</code>s and
+   * <code>Comparable</code>s.
+   *
+   * @param value the initial value
+   * @param minimum the minimum value, if null there's no minimum
+   * @param maximum the maximum value, if null there's no maximum
+   * @param stepSize the step size
+   *
+   * @throws IllegalArgumentException if minimum &lt;= value &lt;= maximum
+   *         does not hold
+   */
+  public SpinnerNumberModel(Number value, Comparable minimum,
+                            Comparable maximum, Number stepSize)
+  {
+    if (stepSize == null)
+      throw new IllegalArgumentException("stepSize may not be null");
+    if (value == null)
+      throw new IllegalArgumentException("value may not be null");
+    if (minimum != null)
+      {
+	if (minimum.compareTo(value) > 0)
+	  throw new IllegalArgumentException("minimum is not <= value");
+      }
+    else
+      minimum = new Comparable()
+	  {
+	    public int compareTo(Object obj)
+	    {
+	      return -1;
+	    }
+	  };
+
+
+    if (maximum != null)
+      {
+	if (maximum.compareTo(value) < 0)
+	  throw new IllegalArgumentException("maximum is not >= value");
+      }
+    else
+      maximum = new Comparable()
+	  {
+	    public int compareTo(Object obj)
+	    {
+	      return 1;
+	    }
+	  };
+
+
+    this.value = value;
+    this.stepSize = stepSize;
+    this.minimum = minimum;
+    this.maximum = maximum;
+  }
+
+  /**
+   * Sets the new value and fire a change event
+   *
+   * @param value the new value
+   *
+   * @throws IllegalArgumentException if minimum &lt;= value &lt;= maximum
+   *         does not hold
+   */
+  public void setValue(Object value)
+  {
+    if (! (value instanceof Number))
+      throw new IllegalArgumentException("value must be a Number");
+
+    this.value = (Number) value;
+    fireStateChanged();
+  }
+
+  /**
+   * Gets the current value
+   *
+   * @return the current value
+   */
+  public Object getValue()
+  {
+    return value;
+  }
+
+  /**
+   * Gets the next value without changing the current value, or null if the
+   * current value is maximum.
+   *
+   * @return the next value
+   */
+  public Object getNextValue()
+  {
+    Number num;
+
+    if (value instanceof Double)
+      num = new Double(value.doubleValue() + stepSize.doubleValue());
+    else if (value instanceof Float)
+      num = new Double(value.floatValue() + stepSize.floatValue());
+    else if (value instanceof Long)
+      num = new Long(value.longValue() + stepSize.longValue());
+    else if (value instanceof Integer)
+      num = new Integer(value.intValue() + stepSize.intValue());
+    else if (value instanceof Short)
+      num = new Short((short) (value.shortValue() + stepSize.shortValue()));
+    else
+      num = new Byte((byte) (value.byteValue() + stepSize.byteValue()));
+
+    return maximum.compareTo(num) >= 0 ? num : null;
+  }
+
+  /**
+   * Gets the previous value without changing the current value, or null if
+   * the current value is minimum.
+   *
+   * @return the previous value
+   */
+  public Object getPreviousValue()
+  {
+    Number num;
+
+    if (value instanceof Double)
+      num = new Double(value.doubleValue() - stepSize.doubleValue());
+    else if (value instanceof Float)
+      num = new Double(value.floatValue() - stepSize.floatValue());
+    else if (value instanceof Long)
+      num = new Long(value.longValue() - stepSize.longValue());
+    else if (value instanceof Integer)
+      num = new Integer(value.intValue() - stepSize.intValue());
+    else if (value instanceof Short)
+      num = new Short((short) (value.shortValue() - stepSize.shortValue()));
+    else
+      num = new Byte((byte) (value.byteValue() - stepSize.byteValue()));
+
+    return minimum.compareTo(num) <= 0 ? num : null;
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public Number getNumber()
+  {
+    return value;
+  }
+
+  public Comparable getMinimum()
+  {
+    return minimum;
+  }
+
+  public void setMinimum(Comparable newMinimum)
+  {
+    if (minimum != newMinimum)
+      {
+	minimum = newMinimum;
+	fireStateChanged();
+      }
+  }
+
+  public Comparable getMaximum()
+  {
+    return maximum;
+  }
+
+  public void setMaximum(Comparable newMaximum)
+  {
+    if (maximum != newMaximum)
+      {
+	maximum = newMaximum;
+	fireStateChanged();
+      }
+  }
+
+  public Number getStepSize()
+  {
+    return stepSize;
+  }
+
+  public void setStepSize(Number newStepSize)
+  {
+    if (newStepSize == null)
+      throw new IllegalArgumentException();
+
+    if (stepSize != newStepSize)
+      {
+	stepSize = newStepSize;
+	fireStateChanged();
+      }
+  }
+}