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diff --git a/src/share/classes/javax/swing/text/DateFormatter.java b/src/share/classes/javax/swing/text/DateFormatter.java
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+/*
+ * Copyright 2000-2001 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+package javax.swing.text;
+
+import java.awt.event.*;
+import java.text.*;
+import java.util.*;
+import javax.swing.*;
+import javax.swing.text.*;
+
+/**
+ * DateFormatter is an <code>InternationalFormatter</code> that does its
+ * formatting by way of an instance of <code>java.text.DateFormat</code>.
+ * <p>
+ * <strong>Warning:</strong>
+ * Serialized objects of this class will not be compatible with
+ * future Swing releases. The current serialization support is
+ * appropriate for short term storage or RMI between applications running
+ * the same version of Swing.  As of 1.4, support for long term storage
+ * of all JavaBeans<sup><font size="-2">TM</font></sup>
+ * has been added to the <code>java.beans</code> package.
+ * Please see {@link java.beans.XMLEncoder}.
+ *
+ * @see java.text.DateFormat
+ *
+ * @since 1.4
+ */
+public class DateFormatter extends InternationalFormatter {
+    /**
+     * This is shorthand for
+     * <code>new DateFormatter(DateFormat.getDateInstance())</code>.
+     */
+    public DateFormatter() {
+        this(DateFormat.getDateInstance());
+    }
+
+    /**
+     * Returns a DateFormatter configured with the specified
+     * <code>Format</code> instance.
+     *
+     * @param format Format used to dictate legal values
+     */
+    public DateFormatter(DateFormat format) {
+        super(format);
+        setFormat(format);
+    }
+
+    /**
+     * Sets the format that dictates the legal values that can be edited
+     * and displayed.
+     * <p>
+     * If you have used the nullary constructor the value of this property
+     * will be determined for the current locale by way of the
+     * <code>Dateformat.getDateInstance()</code> method.
+     *
+     * @param format DateFormat instance used for converting from/to Strings
+     */
+    public void setFormat(DateFormat format) {
+        super.setFormat(format);
+    }
+
+    /**
+     * Returns the Calendar that <code>DateFormat</code> is associated with,
+     * or if the <code>Format</code> is not a <code>DateFormat</code>
+     * <code>Calendar.getInstance</code> is returned.
+     */
+    private Calendar getCalendar() {
+        Format f = getFormat();
+
+        if (f instanceof DateFormat) {
+            return ((DateFormat)f).getCalendar();
+        }
+        return Calendar.getInstance();
+    }
+
+
+    /**
+     * Returns true, as DateFormatterFilter will support
+     * incrementing/decrementing of the value.
+     */
+    boolean getSupportsIncrement() {
+        return true;
+    }
+
+    /**
+     * Returns the field that will be adjusted by adjustValue.
+     */
+    Object getAdjustField(int start, Map attributes) {
+        Iterator attrs = attributes.keySet().iterator();
+
+        while (attrs.hasNext()) {
+            Object key = attrs.next();
+
+            if ((key instanceof DateFormat.Field) &&
+                (key == DateFormat.Field.HOUR1 ||
+                 ((DateFormat.Field)key).getCalendarField() != -1)) {
+                return key;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Adjusts the Date if FieldPosition identifies a known calendar
+     * field.
+     */
+    Object adjustValue(Object value, Map attributes, Object key,
+                           int direction) throws
+                      BadLocationException, ParseException {
+        if (key != null) {
+            int field;
+
+            // HOUR1 has no corresponding calendar field, thus, map
+            // it to HOUR0 which will give the correct behavior.
+            if (key == DateFormat.Field.HOUR1) {
+                key = DateFormat.Field.HOUR0;
+            }
+            field = ((DateFormat.Field)key).getCalendarField();
+
+            Calendar calendar = getCalendar();
+
+            if (calendar != null) {
+                calendar.setTime((Date)value);
+
+                int fieldValue = calendar.get(field);
+
+                try {
+                    calendar.add(field, direction);
+                    value = calendar.getTime();
+                } catch (Throwable th) {
+                    value = null;
+                }
+                return value;
+            }
+        }
+        return null;
+    }
+}