--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/java.desktop/share/classes/javax/swing/AbstractSpinnerModel.java	Sun Aug 17 15:54:13 2014 +0100
@@ -0,0 +1,142 @@
+/*
+ * Copyright (c) 2000, 2014, Oracle and/or its affiliates. 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package javax.swing;
+
+import java.util.*;
+import javax.swing.event.*;
+import java.io.Serializable;
+
+
+/**
+ * This class provides the ChangeListener part of the
+ * SpinnerModel interface that should be suitable for most concrete SpinnerModel
+ * implementations.  Subclasses must provide an implementation of the
+ * <code>setValue</code>, <code>getValue</code>, <code>getNextValue</code> and
+ * <code>getPreviousValue</code> methods.
+ *
+ * @see JSpinner
+ * @see SpinnerModel
+ * @see SpinnerListModel
+ * @see SpinnerNumberModel
+ * @see SpinnerDateModel
+ *
+ * @author Hans Muller
+ * @since 1.4
+ */
+@SuppressWarnings("serial") // Field contents are not serializable across versions
+public abstract class AbstractSpinnerModel implements SpinnerModel, Serializable
+{
+
+    /**
+     * Only one ChangeEvent is needed per model instance since the
+     * event's only (read-only) state is the source property.  The source
+     * of events generated here is always "this".
+     */
+    private transient ChangeEvent changeEvent = null;
+
+
+    /**
+     * The list of ChangeListeners for this model.  Subclasses may
+     * store their own listeners here.
+     */
+    protected EventListenerList listenerList = new EventListenerList();
+
+
+    /**
+     * Adds a ChangeListener to the model's listener list.  The
+     * ChangeListeners must be notified when the models value changes.
+     *
+     * @param l the ChangeListener to add
+     * @see #removeChangeListener
+     * @see SpinnerModel#addChangeListener
+     */
+    public void addChangeListener(ChangeListener l) {
+        listenerList.add(ChangeListener.class, l);
+    }
+
+
+    /**
+     * Removes a ChangeListener from the model's listener list.
+     *
+     * @param l the ChangeListener to remove
+     * @see #addChangeListener
+     * @see SpinnerModel#removeChangeListener
+     */
+    public void removeChangeListener(ChangeListener l) {
+        listenerList.remove(ChangeListener.class, l);
+    }
+
+
+    /**
+     * Returns an array of all the <code>ChangeListener</code>s added
+     * to this AbstractSpinnerModel with addChangeListener().
+     *
+     * @return all of the <code>ChangeListener</code>s added or an empty
+     *         array if no listeners have been added
+     * @since 1.4
+     */
+    public ChangeListener[] getChangeListeners() {
+        return listenerList.getListeners(ChangeListener.class);
+    }
+
+
+    /**
+     * Run each ChangeListeners stateChanged() method.
+     *
+     * @see #setValue
+     * @see EventListenerList
+     */
+    protected void fireStateChanged()
+    {
+        Object[] listeners = listenerList.getListenerList();
+        for (int i = listeners.length - 2; i >= 0; i -=2 ) {
+            if (listeners[i] == ChangeListener.class) {
+                if (changeEvent == null) {
+                    changeEvent = new ChangeEvent(this);
+                }
+                ((ChangeListener)listeners[i+1]).stateChanged(changeEvent);
+            }
+        }
+    }
+
+
+    /**
+     * Return an array of all the listeners of the given type that
+     * were added to this model.  For example to find all of the
+     * ChangeListeners added to this model:
+     * <pre>
+     * myAbstractSpinnerModel.getListeners(ChangeListener.class);
+     * </pre>
+     *
+     * @param <T> the type of requested listeners
+     * @param listenerType the type of listeners to return, e.g. ChangeListener.class
+     * @return all of the objects receiving <em>listenerType</em> notifications
+     *         from this model
+     */
+    public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
+        return listenerList.getListeners(listenerType);
+    }
+}