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    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    *
    * This code is free software; you can redistribute it and/or modify it
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    * particular file as subject to the "Classpath" exception as provided
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   *
   * This code is distributed in the hope that it will be useful, but WITHOUT
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   * 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
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  package javax.swing;
  
  import java.awt.*;
  import java.awt.event.*;
  
  import java.util.Vector;
  import java.util.Locale;
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  import java.beans.PropertyChangeEvent;
  import java.beans.PropertyChangeListener;
  import java.beans.Transient;
  
  import javax.swing.event.*;
  import javax.accessibility.*;
  import javax.swing.plaf.*;
  import javax.swing.text.Position;
  
  import java.io.ObjectOutputStream;
  import java.io.ObjectInputStream;
  import java.io.IOException;
  import java.io.Serializable;
  
  import sun.swing.SwingUtilities2;
  import sun.swing.SwingUtilities2.Section;
  import static sun.swing.SwingUtilities2.Section.*;
  
  
  /**
   * A component that displays a list of objects and allows the user to select
   * one or more items. A separate model, {@code ListModel}, maintains the
   * contents of the list.
   * <p>
   * It's easy to display an array or Vector of objects, using the {@code JList}
   * constructor that automatically builds a read-only {@code ListModel} instance
   * for you:
   * <pre>
   * {@code
   * // Create a JList that displays strings from an array
   *
   * String[] data = {"one", "two", "three", "four"};
   * JList<String> myList = new JList<String>(data);
   *
   * // Create a JList that displays the superclasses of JList.class, by
   * // creating it with a Vector populated with this data
   *
   * Vector<Class<?>> superClasses = new Vector<Class<?>>();
   * Class<JList> rootClass = javax.swing.JList.class;
   * for(Class<?> cls = rootClass; cls != null; cls = cls.getSuperclass()) {
   *     superClasses.addElement(cls);
   * }
   * JList<Class<?>> myList = new JList<Class<?>>(superClasses);
   *
   * // The automatically created model is stored in JList's "model"
   * // property, which you can retrieve
   *
   * ListModel<Class<?>> model = myList.getModel();
   * for(int i = 0; i < model.getSize(); i++) {
   *     System.out.println(model.getElementAt(i));
   * }
   * }
   * </pre>
   * <p>
   * A {@code ListModel} can be supplied directly to a {@code JList} by way of a
   * constructor or the {@code setModel} method. The contents need not be static -
   * the number of items, and the values of items can change over time. A correct
   * {@code ListModel} implementation notifies the set of
   * {@code javax.swing.event.ListDataListener}s that have been added to it, each
   * time a change occurs. These changes are characterized by a
   * {@code javax.swing.event.ListDataEvent}, which identifies the range of list
   * indices that have been modified, added, or removed. {@code JList}'s
   * {@code ListUI} is responsible for keeping the visual representation up to
  * date with changes, by listening to the model.
  * <p>
  * Simple, dynamic-content, {@code JList} applications can use the
  * {@code DefaultListModel} class to maintain list elements. This class
  * implements the {@code ListModel} interface and also provides a
  * <code>java.util.Vector</code>-like API. Applications that need a more
  * custom <code>ListModel</code> implementation may instead wish to subclass
  * {@code AbstractListModel}, which provides basic support for managing and
  * notifying listeners. For example, a read-only implementation of
  * {@code AbstractListModel}:
  * <pre>
  * {@code
  * // This list model has about 2^16 elements.  Enjoy scrolling.
  *
  * ListModel<String> bigData = new AbstractListModel<String>() {
  *     public int getSize() { return Short.MAX_VALUE; }
  *     public String getElementAt(int index) { return "Index " + index; }
  * };
  * }
  * </pre>
  * <p>
  * The selection state of a {@code JList} is managed by another separate
  * model, an instance of {@code ListSelectionModel}. {@code JList} is
  * initialized with a selection model on construction, and also contains
  * methods to query or set this selection model. Additionally, {@code JList}
  * provides convenient methods for easily managing the selection. These methods,
  * such as {@code setSelectedIndex} and {@code getSelectedValue}, are cover
  * methods that take care of the details of interacting with the selection
  * model. By default, {@code JList}'s selection model is configured to allow any
  * combination of items to be selected at a time; selection mode
  * {@code MULTIPLE_INTERVAL_SELECTION}. The selection mode can be changed
  * on the selection model directly, or via {@code JList}'s cover method.
  * Responsibility for updating the selection model in response to user gestures
  * lies with the list's {@code ListUI}.
  * <p>
  * A correct {@code ListSelectionModel} implementation notifies the set of
  * {@code javax.swing.event.ListSelectionListener}s that have been added to it
  * each time a change to the selection occurs. These changes are characterized
  * by a {@code javax.swing.event.ListSelectionEvent}, which identifies the range
  * of the selection change.
  * <p>
  * The preferred way to listen for changes in list selection is to add
  * {@code ListSelectionListener}s directly to the {@code JList}. {@code JList}
  * then takes care of listening to the the selection model and notifying your
  * listeners of change.
  * <p>
  * Responsibility for listening to selection changes in order to keep the list's
  * visual representation up to date lies with the list's {@code ListUI}.
  * <p>
  * <a name="renderer">
  * Painting of cells in a {@code JList} is handled by a delegate called a
  * cell renderer, installed on the list as the {@code cellRenderer} property.
  * The renderer provides a {@code java.awt.Component} that is used
  * like a "rubber stamp" to paint the cells. Each time a cell needs to be
  * painted, the list's {@code ListUI} asks the cell renderer for the component,
  * moves it into place, and has it paint the contents of the cell by way of its
  * {@code paint} method. A default cell renderer, which uses a {@code JLabel}
  * component to render, is installed by the lists's {@code ListUI}. You can
  * substitute your own renderer using code like this:
  * <pre>
  * {@code
  *  // Display an icon and a string for each object in the list.
  *
  * class MyCellRenderer extends JLabel implements ListCellRenderer<Object> {
  *     final static ImageIcon longIcon = new ImageIcon("long.gif");
  *     final static ImageIcon shortIcon = new ImageIcon("short.gif");
  *
  *     // This is the only method defined by ListCellRenderer.
  *     // We just reconfigure the JLabel each time we're called.
  *
  *     public Component getListCellRendererComponent(
  *       JList<?> list,           // the list
  *       Object value,            // value to display
  *       int index,               // cell index
  *       boolean isSelected,      // is the cell selected
  *       boolean cellHasFocus)    // does the cell have focus
  *     {
  *         String s = value.toString();
  *         setText(s);
  *         setIcon((s.length() > 10) ? longIcon : shortIcon);
  *         if (isSelected) {
  *             setBackground(list.getSelectionBackground());
  *             setForeground(list.getSelectionForeground());
  *         } else {
  *             setBackground(list.getBackground());
  *             setForeground(list.getForeground());
  *         }
  *         setEnabled(list.isEnabled());
  *         setFont(list.getFont());
  *         setOpaque(true);
  *         return this;
  *     }
  * }
  *
  * myList.setCellRenderer(new MyCellRenderer());
  * }
  * </pre>
  * <p>
  * Another job for the cell renderer is in helping to determine sizing
  * information for the list. By default, the list's {@code ListUI} determines
  * the size of cells by asking the cell renderer for its preferred
  * size for each list item. This can be expensive for large lists of items.
  * To avoid these calculations, you can set a {@code fixedCellWidth} and
  * {@code fixedCellHeight} on the list, or have these values calculated
  * automatically based on a single prototype value:
  * <a name="prototype_example">
  * <pre>
  * {@code
  * JList<String> bigDataList = new JList<String>(bigData);
  *
  * // We don't want the JList implementation to compute the width
  * // or height of all of the list cells, so we give it a string
  * // that's as big as we'll need for any cell.  It uses this to
  * // compute values for the fixedCellWidth and fixedCellHeight
  * // properties.
  *
  * bigDataList.setPrototypeCellValue("Index 1234567890");
  * }
  * </pre>
  * <p>
  * {@code JList} doesn't implement scrolling directly. To create a list that
  * scrolls, make it the viewport view of a {@code JScrollPane}. For example:
  * <pre>
  * JScrollPane scrollPane = new JScrollPane(myList);
  *
  * // Or in two steps:
  * JScrollPane scrollPane = new JScrollPane();
  * scrollPane.getViewport().setView(myList);
  * </pre>
  * <p>
  * {@code JList} doesn't provide any special handling of double or triple
  * (or N) mouse clicks, but it's easy to add a {@code MouseListener} if you
  * wish to take action on these events. Use the {@code locationToIndex}
  * method to determine what cell was clicked. For example:
  * <pre>
  * MouseListener mouseListener = new MouseAdapter() {
  *     public void mouseClicked(MouseEvent e) {
  *         if (e.getClickCount() == 2) {
  *             int index = list.locationToIndex(e.getPoint());
  *             System.out.println("Double clicked on Item " + index);
  *          }
  *     }
  * };
  * list.addMouseListener(mouseListener);
  * </pre>
  * <p>
  * <strong>Warning:</strong> Swing is not thread safe. For more
  * information see <a
  * href="package-summary.html#threading">Swing's Threading
  * Policy</a>.
  * <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}.
  * <p>
  * See <a href="http://java.sun.com/docs/books/tutorial/uiswing/components/list.html">How to Use Lists</a>
  * in <a href="http://java.sun.com/Series/Tutorial/index.html"><em>The Java Tutorial</em></a>
  * for further documentation.
  * Also see the article <a href="http://java.sun.com/products/jfc/tsc/tech_topics/jlist_1/jlist.html">Advanced JList Programming</a>
  * in <a href="http://java.sun.com/products/jfc/tsc"><em>The Swing Connection</em></a>.
  * <p>
  * @see ListModel
  * @see AbstractListModel
  * @see DefaultListModel
  * @see ListSelectionModel
  * @see DefaultListSelectionModel
  * @see ListCellRenderer
  * @see DefaultListCellRenderer
  *
  * @param <E> the type of the elements of this list
  *
  * @beaninfo
  *   attribute: isContainer false
  * description: A component which allows for the selection of one or more objects from a list.
  *
  * @author Hans Muller
  */
 public class JList<E> extends JComponent implements Scrollable, Accessible
 {
     /**
      * @see #getUIClassID
      * @see #readObject
      */
     private static final String uiClassID = "ListUI";
 
     /**
      * Indicates a vertical layout of cells, in a single column;
      * the default layout.
      * @see #setLayoutOrientation
      * @since 1.4
      */
     public static final int VERTICAL = 0;
 
     /**
      * Indicates a "newspaper style" layout with cells flowing vertically
      * then horizontally.
      * @see #setLayoutOrientation
      * @since 1.4
      */
     public static final int VERTICAL_WRAP = 1;
 
     /**
      * Indicates a "newspaper style" layout with cells flowing horizontally
      * then vertically.
      * @see #setLayoutOrientation
      * @since 1.4
      */
     public static final int HORIZONTAL_WRAP = 2;
 
     private int fixedCellWidth = -1;
     private int fixedCellHeight = -1;
     private int horizontalScrollIncrement = -1;
     private E prototypeCellValue;
     private int visibleRowCount = 8;
     private Color selectionForeground;
     private Color selectionBackground;
     private boolean dragEnabled;
 
     private ListSelectionModel selectionModel;
     private ListModel<E> dataModel;
     private ListCellRenderer<? super E> cellRenderer;
     private ListSelectionListener selectionListener;
 
     /**
      * How to lay out the cells; defaults to <code>VERTICAL</code>.
      */
     private int layoutOrientation;
 
     /**
      * The drop mode for this component.
      */
     private DropMode dropMode = DropMode.USE_SELECTION;
 
     /**
      * The drop location.
      */
     private transient DropLocation dropLocation;
 
     /**
      * A subclass of <code>TransferHandler.DropLocation</code> representing
      * a drop location for a <code>JList</code>.
      *
      * @see #getDropLocation
      * @since 1.6
      */
     public static final class DropLocation extends TransferHandler.DropLocation {
         private final int index;
         private final boolean isInsert;
 
         private DropLocation(Point p, int index, boolean isInsert) {
             super(p);
             this.index = index;
             this.isInsert = isInsert;
         }
 
         /**
          * Returns the index where dropped data should be placed in the
          * list. Interpretation of the value depends on the drop mode set on
          * the associated component. If the drop mode is either
          * <code>DropMode.USE_SELECTION</code> or <code>DropMode.ON</code>,
          * the return value is an index of a row in the list. If the drop mode is
          * <code>DropMode.INSERT</code>, the return value refers to the index
          * where the data should be inserted. If the drop mode is
          * <code>DropMode.ON_OR_INSERT</code>, the value of
          * <code>isInsert()</code> indicates whether the index is an index
          * of a row, or an insert index.
          * <p>
          * <code>-1</code> indicates that the drop occurred over empty space,
          * and no index could be calculated.
          *
          * @return the drop index
          */
         public int getIndex() {
             return index;
         }
 
         /**
          * Returns whether or not this location represents an insert
          * location.
          *
          * @return whether or not this is an insert location
          */
         public boolean isInsert() {
             return isInsert;
         }
 
         /**
          * Returns a string representation of this drop location.
          * This method is intended to be used for debugging purposes,
          * and the content and format of the returned string may vary
          * between implementations.
          *
          * @return a string representation of this drop location
          */
         public String toString() {
             return getClass().getName()
                    + "[dropPoint=" + getDropPoint() + ","
                    + "index=" + index + ","
                    + "insert=" + isInsert + "]";
         }
     }
 
     /**
      * Constructs a {@code JList} that displays elements from the specified,
      * {@code non-null}, model. All {@code JList} constructors delegate to
      * this one.
      * <p>
      * This constructor registers the list with the {@code ToolTipManager},
      * allowing for tooltips to be provided by the cell renderers.
      *
      * @param dataModel the model for the list
      * @exception IllegalArgumentException if the model is {@code null}
      */
     public JList(ListModel<E> dataModel)
     {
         if (dataModel == null) {
             throw new IllegalArgumentException("dataModel must be non null");
         }
 
         // Register with the ToolTipManager so that tooltips from the
         // renderer show through.
         ToolTipManager toolTipManager = ToolTipManager.sharedInstance();
         toolTipManager.registerComponent(this);
 
         layoutOrientation = VERTICAL;
 
         this.dataModel = dataModel;
         selectionModel = createSelectionModel();
         setAutoscrolls(true);
         setOpaque(true);
         updateUI();
     }
 
 
     /**
      * Constructs a <code>JList</code> that displays the elements in
      * the specified array. This constructor creates a read-only model
      * for the given array, and then delegates to the constructor that
      * takes a {@code ListModel}.
      * <p>
      * Attempts to pass a {@code null} value to this method results in
      * undefined behavior and, most likely, exceptions. The created model
      * references the given array directly. Attempts to modify the array
      * after constructing the list results in undefined behavior.
      *
      * @param  listData  the array of Objects to be loaded into the data model,
      *                   {@code non-null}
      */
     public JList(final E[] listData)
     {
         this (
             new AbstractListModel<E>() {
                 public int getSize() { return listData.length; }
                 public E getElementAt(int i) { return listData[i]; }
             }
         );
     }
 
 
     /**
      * Constructs a <code>JList</code> that displays the elements in
      * the specified <code>Vector</code>. This constructor creates a read-only
      * model for the given {@code Vector}, and then delegates to the constructor
      * that takes a {@code ListModel}.
      * <p>
      * Attempts to pass a {@code null} value to this method results in
      * undefined behavior and, most likely, exceptions. The created model
      * references the given {@code Vector} directly. Attempts to modify the
      * {@code Vector} after constructing the list results in undefined behavior.
      *
      * @param  listData  the <code>Vector</code> to be loaded into the
      *                   data model, {@code non-null}
      */
     public JList(final Vector<? extends E> listData) {
         this (
             new AbstractListModel<E>() {
                 public int getSize() { return listData.size(); }
                 public E getElementAt(int i) { return listData.elementAt(i); }
             }
         );
     }
 
 
     /**
      * Constructs a <code>JList</code> with an empty, read-only, model.
      */
     public JList() {
         this (
             new AbstractListModel<E>() {
               public int getSize() { return 0; }
               public E getElementAt(int i) { throw new IndexOutOfBoundsException("No Data Model"); }
             }
         );
     }
 
 
     /**
      * Returns the {@code ListUI}, the look and feel object that
      * renders this component.
      *
      * @return the <code>ListUI</code> object that renders this component
      */
     public ListUI getUI() {
         return (ListUI)ui;
     }
 
 
     /**
      * Sets the {@code ListUI}, the look and feel object that
      * renders this component.
      *
      * @param ui  the <code>ListUI</code> object
      * @see UIDefaults#getUI
      * @beaninfo
      *        bound: true
      *       hidden: true
      *    attribute: visualUpdate true
      *  description: The UI object that implements the Component's LookAndFeel.
      */
     public void setUI(ListUI ui) {
         super.setUI(ui);
     }
 
 
     /**
      * Resets the {@code ListUI} property by setting it to the value provided
      * by the current look and feel. If the current cell renderer was installed
      * by the developer (rather than the look and feel itself), this also causes
      * the cell renderer and its children to be updated, by calling
      * {@code SwingUtilities.updateComponentTreeUI} on it.
      *
      * @see UIManager#getUI
      * @see SwingUtilities#updateComponentTreeUI
      */
     public void updateUI() {
         setUI((ListUI)UIManager.getUI(this));
 
         ListCellRenderer<? super E> renderer = getCellRenderer();
         if (renderer instanceof Component) {
             SwingUtilities.updateComponentTreeUI((Component)renderer);
         }
     }
 
 
     /**
      * Returns {@code "ListUI"}, the <code>UIDefaults</code> key used to look
      * up the name of the {@code javax.swing.plaf.ListUI} class that defines
      * the look and feel for this component.
      *
      * @return the string "ListUI"
      * @see JComponent#getUIClassID
      * @see UIDefaults#getUI
      */
     public String getUIClassID() {
         return uiClassID;
     }
 
 
     /* -----private-----
      * This method is called by setPrototypeCellValue and setCellRenderer
      * to update the fixedCellWidth and fixedCellHeight properties from the
      * current value of prototypeCellValue (if it's non null).
      * <p>
      * This method sets fixedCellWidth and fixedCellHeight but does <b>not</b>
      * generate PropertyChangeEvents for them.
      *
      * @see #setPrototypeCellValue
      * @see #setCellRenderer
      */
     private void updateFixedCellSize()
     {
         ListCellRenderer<? super E> cr = getCellRenderer();
         E value = getPrototypeCellValue();
 
         if ((cr != null) && (value != null)) {
             Component c = cr.getListCellRendererComponent(this, value, 0, false, false);
 
             /* The ListUI implementation will add Component c to its private
              * CellRendererPane however we can't assume that's already
              * been done here.  So we temporarily set the one "inherited"
              * property that may affect the renderer components preferred size:
              * its font.
              */
             Font f = c.getFont();
             c.setFont(getFont());
 
             Dimension d = c.getPreferredSize();
             fixedCellWidth = d.width;
             fixedCellHeight = d.height;
 
             c.setFont(f);
         }
     }
 
 
     /**
      * Returns the "prototypical" cell value -- a value used to calculate a
      * fixed width and height for cells. This can be {@code null} if there
      * is no such value.
      *
      * @return the value of the {@code prototypeCellValue} property
      * @see #setPrototypeCellValue
      */
     public E getPrototypeCellValue() {
         return prototypeCellValue;
     }
 
     /**
      * Sets the {@code prototypeCellValue} property, and then (if the new value
      * is {@code non-null}), computes the {@code fixedCellWidth} and
      * {@code fixedCellHeight} properties by requesting the cell renderer
      * component for the given value (and index 0) from the cell renderer, and
      * using that component's preferred size.
      * <p>
      * This method is useful when the list is too long to allow the
      * {@code ListUI} to compute the width/height of each cell, and there is a
      * single cell value that is known to occupy as much space as any of the
      * others, a so-called prototype.
      * <p>
      * While all three of the {@code prototypeCellValue},
      * {@code fixedCellHeight}, and {@code fixedCellWidth} properties may be
      * modified by this method, {@code PropertyChangeEvent} notifications are
      * only sent when the {@code prototypeCellValue} property changes.
      * <p>
      * To see an example which sets this property, see the
      * <a href="#prototype_example">class description</a> above.
      * <p>
      * The default value of this property is <code>null</code>.
      * <p>
      * This is a JavaBeans bound property.
      *
      * @param prototypeCellValue  the value on which to base
      *                          <code>fixedCellWidth</code> and
      *                          <code>fixedCellHeight</code>
      * @see #getPrototypeCellValue
      * @see #setFixedCellWidth
      * @see #setFixedCellHeight
      * @see JComponent#addPropertyChangeListener
      * @beaninfo
      *       bound: true
      *   attribute: visualUpdate true
      * description: The cell prototype value, used to compute cell width and height.
      */
     public void setPrototypeCellValue(E prototypeCellValue) {
         E oldValue = this.prototypeCellValue;
         this.prototypeCellValue = prototypeCellValue;
 
         /* If the prototypeCellValue has changed and is non-null,
          * then recompute fixedCellWidth and fixedCellHeight.
          */
 
         if ((prototypeCellValue != null) && !prototypeCellValue.equals(oldValue)) {
             updateFixedCellSize();
         }
 
         firePropertyChange("prototypeCellValue", oldValue, prototypeCellValue);
     }
 
 
     /**
      * Returns the value of the {@code fixedCellWidth} property.
      *
      * @return the fixed cell width
      * @see #setFixedCellWidth
      */
     public int getFixedCellWidth() {
         return fixedCellWidth;
     }
 
     /**
      * Sets a fixed value to be used for the width of every cell in the list.
      * If {@code width} is -1, cell widths are computed in the {@code ListUI}
      * by applying <code>getPreferredSize</code> to the cell renderer component
      * for each list element.
      * <p>
      * The default value of this property is {@code -1}.
      * <p>
      * This is a JavaBeans bound property.
      *
      * @param width the width to be used for all cells in the list
      * @see #setPrototypeCellValue
      * @see #setFixedCellWidth
      * @see JComponent#addPropertyChangeListener
      * @beaninfo
      *       bound: true
      *   attribute: visualUpdate true
      * description: Defines a fixed cell width when greater than zero.
      */
     public void setFixedCellWidth(int width) {
         int oldValue = fixedCellWidth;
         fixedCellWidth = width;
         firePropertyChange("fixedCellWidth", oldValue, fixedCellWidth);
     }
 
 
     /**
      * Returns the value of the {@code fixedCellHeight} property.
      *
      * @return the fixed cell height
      * @see #setFixedCellHeight
      */
     public int getFixedCellHeight() {
         return fixedCellHeight;
     }
 
     /**
      * Sets a fixed value to be used for the height of every cell in the list.
      * If {@code height} is -1, cell heights are computed in the {@code ListUI}
      * by applying <code>getPreferredSize</code> to the cell renderer component
      * for each list element.
      * <p>
      * The default value of this property is {@code -1}.
      * <p>
      * This is a JavaBeans bound property.
      *
      * @param height the height to be used for for all cells in the list
      * @see #setPrototypeCellValue
      * @see #setFixedCellWidth
      * @see JComponent#addPropertyChangeListener
      * @beaninfo
      *       bound: true
      *   attribute: visualUpdate true
      * description: Defines a fixed cell height when greater than zero.
      */
     public void setFixedCellHeight(int height) {
         int oldValue = fixedCellHeight;
         fixedCellHeight = height;
         firePropertyChange("fixedCellHeight", oldValue, fixedCellHeight);
     }
 
 
     /**
      * Returns the object responsible for painting list items.
      *
      * @return the value of the {@code cellRenderer} property
      * @see #setCellRenderer
      */
     @Transient
     public ListCellRenderer<? super E> getCellRenderer() {
         return cellRenderer;
     }
 
     /**
      * Sets the delegate that is used to paint each cell in the list.
      * The job of a cell renderer is discussed in detail in the
      * <a href="#renderer">class level documentation</a>.
      * <p>
      * If the {@code prototypeCellValue} property is {@code non-null},
      * setting the cell renderer also causes the {@code fixedCellWidth} and
      * {@code fixedCellHeight} properties to be re-calculated. Only one
      * <code>PropertyChangeEvent</code> is generated however -
      * for the <code>cellRenderer</code> property.
      * <p>
      * The default value of this property is provided by the {@code ListUI}
      * delegate, i.e. by the look and feel implementation.
      * <p>
      * This is a JavaBeans bound property.
      *
      * @param cellRenderer the <code>ListCellRenderer</code>
      *                          that paints list cells
      * @see #getCellRenderer
      * @beaninfo
      *       bound: true
      *   attribute: visualUpdate true
      * description: The component used to draw the cells.
      */
     public void setCellRenderer(ListCellRenderer<? super E> cellRenderer) {
         ListCellRenderer<? super E> oldValue = this.cellRenderer;
         this.cellRenderer = cellRenderer;
 
         /* If the cellRenderer has changed and prototypeCellValue
          * was set, then recompute fixedCellWidth and fixedCellHeight.
          */
         if ((cellRenderer != null) && !cellRenderer.equals(oldValue)) {
             updateFixedCellSize();
         }
 
         firePropertyChange("cellRenderer", oldValue, cellRenderer);
     }
 
 
     /**
      * Returns the color used to draw the foreground of selected items.
      * {@code DefaultListCellRenderer} uses this color to draw the foreground
      * of items in the selected state, as do the renderers installed by most
      * {@code ListUI} implementations.
      *
      * @return the color to draw the foreground of selected items
      * @see #setSelectionForeground
      * @see DefaultListCellRenderer
      */
     public Color getSelectionForeground() {
         return selectionForeground;
     }
 
 
     /**
      * Sets the color used to draw the foreground of selected items, which
      * cell renderers can use to render text and graphics.
      * {@code DefaultListCellRenderer} uses this color to draw the foreground
      * of items in the selected state, as do the renderers installed by most
      * {@code ListUI} implementations.
      * <p>
      * The default value of this property is defined by the look and feel
      * implementation.
      * <p>
      * This is a JavaBeans bound property.
      *
      * @param selectionForeground  the {@code Color} to use in the foreground
      *                             for selected list items
      * @see #getSelectionForeground
      * @see #setSelectionBackground
      * @see #setForeground
      * @see #setBackground
      * @see #setFont
      * @see DefaultListCellRenderer
      * @beaninfo
      *       bound: true
      *   attribute: visualUpdate true
      * description: The foreground color of selected cells.
      */
     public void setSelectionForeground(Color selectionForeground) {
         Color oldValue = this.selectionForeground;
         this.selectionForeground = selectionForeground;
         firePropertyChange("selectionForeground", oldValue, selectionForeground);
     }
 
 
     /**
      * Returns the color used to draw the background of selected items.
      * {@code DefaultListCellRenderer} uses this color to draw the background
      * of items in the selected state, as do the renderers installed by most
      * {@code ListUI} implementations.
      *
      * @return the color to draw the background of selected items
      * @see #setSelectionBackground
      * @see DefaultListCellRenderer
      */
     public Color getSelectionBackground() {
         return selectionBackground;
     }
 
 
     /**
      * Sets the color used to draw the background of selected items, which
      * cell renderers can use fill selected cells.
      * {@code DefaultListCellRenderer} uses this color to fill the background
      * of items in the selected state, as do the renderers installed by most
      * {@code ListUI} implementations.
      * <p>
      * The default value of this property is defined by the look
      * and feel implementation.
      * <p>
      * This is a JavaBeans bound property.
      *
      * @param selectionBackground  the {@code Color} to use for the
      *                             background of selected cells
      * @see #getSelectionBackground
      * @see #setSelectionForeground
      * @see #setForeground
      * @see #setBackground
      * @see #setFont
      * @see DefaultListCellRenderer
      * @beaninfo
      *       bound: true
      *   attribute: visualUpdate true
      * description: The background color of selected cells.
      */
     public void setSelectionBackground(Color selectionBackground) {
         Color oldValue = this.selectionBackground;
         this.selectionBackground = selectionBackground;
         firePropertyChange("selectionBackground", oldValue, selectionBackground);
     }
 
 
     /**
      * Returns the value of the {@code visibleRowCount} property. See the
      * documentation for {@link #setVisibleRowCount} for details on how to
      * interpret this value.
      *
      * @return the value of the {@code visibleRowCount} property.
      * @see #setVisibleRowCount
      */
     public int getVisibleRowCount() {
         return visibleRowCount;
     }
 
     /**
      * Sets the {@code visibleRowCount} property, which has different meanings
      * depending on the layout orientation: For a {@code VERTICAL} layout
      * orientation, this sets the preferred number of rows to display without
      * requiring scrolling; for other orientations, it affects the wrapping of
      * cells.
      * <p>
      * In {@code VERTICAL} orientation:<br>
      * Setting this property affects the return value of the
      * {@link #getPreferredScrollableViewportSize} method, which is used to
      * calculate the preferred size of an enclosing viewport. See that method's
      * documentation for more details.
      * <p>
      * In {@code HORIZONTAL_WRAP} and {@code VERTICAL_WRAP} orientations:<br>
      * This affects how cells are wrapped. See the documentation of
      * {@link #setLayoutOrientation} for more details.
      * <p>
      * The default value of this property is {@code 8}.
      * <p>
      * Calling this method with a negative value results in the property
      * being set to {@code 0}.
      * <p>
      * This is a JavaBeans bound property.
      *
      * @param visibleRowCount  an integer specifying the preferred number of
      *                         rows to display without requiring scrolling
      * @see #getVisibleRowCount
      * @see #getPreferredScrollableViewportSize
      * @see #setLayoutOrientation
      * @see JComponent#getVisibleRect
      * @see JViewport
      * @beaninfo
      *       bound: true
      *   attribute: visualUpdate true
      * description: The preferred number of rows to display without
      *              requiring scrolling
      */
     public void setVisibleRowCount(int visibleRowCount) {
         int oldValue = this.visibleRowCount;
         this.visibleRowCount = Math.max(0, visibleRowCount);
         firePropertyChange("visibleRowCount", oldValue, visibleRowCount);
     }
 
 
     /**
      * Returns the layout orientation property for the list: {@code VERTICAL}
      * if the layout is a single column of cells, {@code VERTICAL_WRAP} if the
      * layout is "newspaper style" with the content flowing vertically then
      * horizontally, or {@code HORIZONTAL_WRAP} if the layout is "newspaper
      * style" with the content flowing horizontally then vertically.
      *
      * @return the value of the {@code layoutOrientation} property
      * @see #setLayoutOrientation
      * @since 1.4
      */
     public int getLayoutOrientation() {
         return layoutOrientation;
     }
 
 
     /**
      * Defines the way list cells are layed out. Consider a {@code JList}
      * with five cells. Cells can be layed out in one of the following ways:
      * <p>
      * <pre>
      * VERTICAL:          0
      *                    1
      *                    2
      *                    3
      *                    4
      *
      * HORIZONTAL_WRAP:   0  1  2
      *                    3  4
      *
      * VERTICAL_WRAP:     0  3
      *                    1  4
      *                    2
      * </pre>
      * <p>
      * A description of these layouts follows:
      *
      * <table border="1"
      *  summary="Describes layouts VERTICAL, HORIZONTAL_WRAP, and VERTICAL_WRAP">
      *   <tr><th><p align="left">Value</p></th><th><p align="left">Description</p></th></tr>
      *   <tr><td><code>VERTICAL</code>
      *       <td>Cells are layed out vertically in a single column.
      *   <tr><td><code>HORIZONTAL_WRAP</code>
      *       <td>Cells are layed out horizontally, wrapping to a new row as
      *           necessary. If the {@code visibleRowCount} property is less than
      *           or equal to zero, wrapping is determined by the width of the
      *           list; otherwise wrapping is done in such a way as to ensure
      *           {@code visibleRowCount} rows in the list.
      *   <tr><td><code>VERTICAL_WRAP</code>
      *       <td>Cells are layed out vertically, wrapping to a new column as
      *           necessary. If the {@code visibleRowCount} property is less than
      *           or equal to zero, wrapping is determined by the height of the
      *           list; otherwise wrapping is done at {@code visibleRowCount} rows.
      *  </table>
      * <p>
      * The default value of this property is <code>VERTICAL</code>.
      *
      * @param layoutOrientation the new layout orientation, one of:
      *        {@code VERTICAL}, {@code HORIZONTAL_WRAP} or {@code VERTICAL_WRAP}
      * @see #getLayoutOrientation
      * @see #setVisibleRowCount
      * @see #getScrollableTracksViewportHeight
      * @see #getScrollableTracksViewportWidth
      * @throws IllegalArgumentException if {@code layoutOrientation} isn't one of the
      *         allowable values
      * @since 1.4
      * @beaninfo
      *       bound: true
      *   attribute: visualUpdate true
      * description: Defines the way list cells are layed out.
      *        enum: VERTICAL JList.VERTICAL
      *              HORIZONTAL_WRAP JList.HORIZONTAL_WRAP
      *              VERTICAL_WRAP JList.VERTICAL_WRAP
      */
     public void setLayoutOrientation(int layoutOrientation) {
         int oldValue = this.layoutOrientation;
         switch (layoutOrientation) {
         case VERTICAL:
         case VERTICAL_WRAP:
         case HORIZONTAL_WRAP:
             this.layoutOrientation = layoutOrientation;
             firePropertyChange("layoutOrientation", oldValue, layoutOrientation);
             break;
         default:
             throw new IllegalArgumentException("layoutOrientation must be one of: VERTICAL, HORIZONTAL_WRAP or VERTICAL_WRAP");
         }
     }
 
 
     /**
      * Returns the smallest list index that is currently visible.
      * In a left-to-right {@code componentOrientation}, the first visible
      * cell is found closest to the list's upper-left corner. In right-to-left
      * orientation, it is found closest to the upper-right corner.
      * If nothing is visible or the list is empty, {@code -1} is returned.
      * Note that the returned cell may only be partially visible.
      *
      * @return the index of the first visible cell
      * @see #getLastVisibleIndex
      * @see JComponent#getVisibleRect
      */
     public int getFirstVisibleIndex() {
         Rectangle r = getVisibleRect();
         int first;
         if (this.getComponentOrientation().isLeftToRight()) {
             first = locationToIndex(r.getLocation());
         } else {
             first = locationToIndex(new Point((r.x + r.width) - 1, r.y));
         }
         if (first != -1) {
             Rectangle bounds = getCellBounds(first, first);
             if (bounds != null) {
                 SwingUtilities.computeIntersection(r.x, r.y, r.width, r.height, bounds);
                 if (bounds.width == 0 || bounds.height == 0) {
                     first = -1;
                 }
             }
         }
         return first;
     }
 
 
     /**
      * Returns the largest list index that is currently visible.
      * If nothing is visible or the list is empty, {@code -1} is returned.
      * Note that the returned cell may only be partially visible.
      *
      * @return the index of the last visible cell
      * @see #getFirstVisibleIndex
      * @see JComponent#getVisibleRect
      */
     public int getLastVisibleIndex() {
         boolean leftToRight = this.getComponentOrientation().isLeftToRight();
         Rectangle r = getVisibleRect();
         Point lastPoint;
         if (leftToRight) {
             lastPoint = new Point((r.x + r.width) - 1, (r.y + r.height) - 1);
         } else {
             lastPoint = new Point(r.x, (r.y + r.height) - 1);
         }
         int location = locationToIndex(lastPoint);
 
         if (location != -1) {
             Rectangle bounds = getCellBounds(location, location);
 
             if (bounds != null) {
                 SwingUtilities.computeIntersection(r.x, r.y, r.width, r.height, bounds);
                 if (bounds.width == 0 || bounds.height == 0) {
                     // Try the top left(LTR) or top right(RTL) corner, and
                     // then go across checking each cell for HORIZONTAL_WRAP.
                     // Try the lower left corner, and then go across checking
                     // each cell for other list layout orientation.
                     boolean isHorizontalWrap =
                         (getLayoutOrientation() == HORIZONTAL_WRAP);
                     Point visibleLocation = isHorizontalWrap ?
                         new Point(lastPoint.x, r.y) :
                         new Point(r.x, lastPoint.y);
                     int last;
                     int visIndex = -1;
                     int lIndex = location;
                     location = -1;
 
                     do {
                         last = visIndex;
                         visIndex = locationToIndex(visibleLocation);
 
                         if (visIndex != -1) {
                             bounds = getCellBounds(visIndex, visIndex);
                             if (visIndex != lIndex && bounds != null &&
                                 bounds.contains(visibleLocation)) {
                                 location = visIndex;
                                 if (isHorizontalWrap) {
                                     visibleLocation.y = bounds.y + bounds.height;
                                     if (visibleLocation.y >= lastPoint.y) {
                                         // Past visible region, bail.
                                         last = visIndex;
                                     }
                                 }
                                 else {
                                     visibleLocation.x = bounds.x + bounds.width;
                                     if (visibleLocation.x >= lastPoint.x) {
                                         // Past visible region, bail.
                                         last = visIndex;
                                     }
                                 }
 
                             }
                             else {
                                 last = visIndex;
                             }
                         }
                     } while (visIndex != -1 && last != visIndex);
                 }
             }
         }
         return location;
     }
 
 
     /**
      * Scrolls the list within an enclosing viewport to make the specified
      * cell completely visible. This calls {@code scrollRectToVisible} with
      * the bounds of the specified cell. For this method to work, the
      * {@code JList} must be within a <code>JViewport</code>.
      * <p>
      * If the given index is outside the list's range of cells, this method
      * results in nothing.
      *
      * @param index  the index of the cell to make visible
      * @see JComponent#scrollRectToVisible
      * @see #getVisibleRect
      */
     public void ensureIndexIsVisible(int index) {
         Rectangle cellBounds = getCellBounds(index, index);
         if (cellBounds != null) {
             scrollRectToVisible(cellBounds);
         }
     }
 
     /**
      * Turns on or off automatic drag handling. In order to enable automatic
      * drag handling, this property should be set to {@code true}, and the
      * list's {@code TransferHandler} needs to be {@code non-null}.
      * The default value of the {@code dragEnabled} property is {@code false}.
      * <p>
      * The job of honoring this property, and recognizing a user drag gesture,
      * lies with the look and feel implementation, and in particular, the list's
      * {@code ListUI}. When automatic drag handling is enabled, most look and
      * feels (including those that subclass {@code BasicLookAndFeel}) begin a
      * drag and drop operation whenever the user presses the mouse button over
      * an item and then moves the mouse a few pixels. Setting this property to
      * {@code true} can therefore have a subtle effect on how selections behave.
      * <p>
      * If a look and feel is used that ignores this property, you can still
      * begin a drag and drop operation by calling {@code exportAsDrag} on the
      * list's {@code TransferHandler}.
      *
      * @param b whether or not to enable automatic drag handling
      * @exception HeadlessException if
      *            <code>b</code> is <code>true</code> and
      *            <code>GraphicsEnvironment.isHeadless()</code>
      *            returns <code>true</code>
      * @see java.awt.GraphicsEnvironment#isHeadless
      * @see #getDragEnabled
      * @see #setTransferHandler
      * @see TransferHandler
      * @since 1.4
      *
      * @beaninfo
      *  description: determines whether automatic drag handling is enabled
      *        bound: false
      */
     public void setDragEnabled(boolean b) {
         if (b && GraphicsEnvironment.isHeadless()) {
             throw new HeadlessException();
         }
         dragEnabled = b;
     }
 
     /**
      * Returns whether or not automatic drag handling is enabled.
      *
      * @return the value of the {@code dragEnabled} property
      * @see #setDragEnabled
      * @since 1.4
      */
     public boolean getDragEnabled() {
         return dragEnabled;
     }
 
     /**
      * Sets the drop mode for this component. For backward compatibility,
      * the default for this property is <code>DropMode.USE_SELECTION</code>.
      * Usage of one of the other modes is recommended, however, for an
      * improved user experience. <code>DropMode.ON</code>, for instance,
      * offers similar behavior of showing items as selected, but does so without
      * affecting the actual selection in the list.
      * <p>
      * <code>JList</code> supports the following drop modes:
      * <ul>
      *    <li><code>DropMode.USE_SELECTION</code></li>
      *    <li><code>DropMode.ON</code></li>
      *    <li><code>DropMode.INSERT</code></li>
      *    <li><code>DropMode.ON_OR_INSERT</code></li>
      * </ul>
      * The drop mode is only meaningful if this component has a
      * <code>TransferHandler</code> that accepts drops.
      *
      * @param dropMode the drop mode to use
      * @throws IllegalArgumentException if the drop mode is unsupported
      *         or <code>null</code>
      * @see #getDropMode
      * @see #getDropLocation
      * @see #setTransferHandler
      * @see TransferHandler
      * @since 1.6
      */
     public final void setDropMode(DropMode dropMode) {
         if (dropMode != null) {
             switch (dropMode) {
                 case USE_SELECTION:
                 case ON:
                 case INSERT:
                 case ON_OR_INSERT:
                     this.dropMode = dropMode;
                     return;
             }
         }
 
         throw new IllegalArgumentException(dropMode + ": Unsupported drop mode for list");
     }
 
     /**
      * Returns the drop mode for this component.
      *
      * @return the drop mode for this component
      * @see #setDropMode
      * @since 1.6
      */
     public final DropMode getDropMode() {
         return dropMode;
     }
 
     /**
      * Calculates a drop location in this component, representing where a
      * drop at the given point should insert data.
      *
      * @param p the point to calculate a drop location for
      * @return the drop location, or <code>null</code>
      */
     DropLocation dropLocationForPoint(Point p) {
         DropLocation location = null;
         Rectangle rect = null;
 
         int index = locationToIndex(p);
         if (index != -1) {
             rect = getCellBounds(index, index);
         }
 
         switch(dropMode) {
             case USE_SELECTION:
             case ON:
                 location = new DropLocation(p,
                     (rect != null && rect.contains(p)) ? index : -1,
                     false);
 
                 break;
             case INSERT:
                 if (index == -1) {
                     location = new DropLocation(p, getModel().getSize(), true);
                     break;
                 }
 
                 if (layoutOrientation == HORIZONTAL_WRAP) {
                     boolean ltr = getComponentOrientation().isLeftToRight();
 
                     if (SwingUtilities2.liesInHorizontal(rect, p, ltr, false) == TRAILING) {
                         index++;
                     // special case for below all cells
                     } else if (index == getModel().getSize() - 1 && p.y >= rect.y + rect.height) {
                         index++;
                     }
                 } else {
                     if (SwingUtilities2.liesInVertical(rect, p, false) == TRAILING) {
                         index++;
                     }
                 }
 
                 location = new DropLocation(p, index, true);
 
                 break;
             case ON_OR_INSERT:
                 if (index == -1) {
                     location = new DropLocation(p, getModel().getSize(), true);
                     break;
                 }
 
                 boolean between = false;
 
                 if (layoutOrientation == HORIZONTAL_WRAP) {
                     boolean ltr = getComponentOrientation().isLeftToRight();
 
                     Section section = SwingUtilities2.liesInHorizontal(rect, p, ltr, true);
                     if (section == TRAILING) {
                         index++;
                         between = true;
                     // special case for below all cells
                     } else if (index == getModel().getSize() - 1 && p.y >= rect.y + rect.height) {
                         index++;
                         between = true;
                     } else if (section == LEADING) {
                         between = true;
                     }
                 } else {
                     Section section = SwingUtilities2.liesInVertical(rect, p, true);
                     if (section == LEADING) {
                         between = true;
                     } else if (section == TRAILING) {
                         index++;
                         between = true;
                     }
                 }
 
                 location = new DropLocation(p, index, between);
 
                 break;
             default:
                 assert false : "Unexpected drop mode";
         }
 
         return location;
     }
 
     /**
      * Called to set or clear the drop location during a DnD operation.
      * In some cases, the component may need to use it's internal selection
      * temporarily to indicate the drop location. To help facilitate this,
      * this method returns and accepts as a parameter a state object.
      * This state object can be used to store, and later restore, the selection
      * state. Whatever this method returns will be passed back to it in
      * future calls, as the state parameter. If it wants the DnD system to
      * continue storing the same state, it must pass it back every time.
      * Here's how this is used:
      * <p>
      * Let's say that on the first call to this method the component decides
      * to save some state (because it is about to use the selection to show
      * a drop index). It can return a state object to the caller encapsulating
      * any saved selection state. On a second call, let's say the drop location
      * is being changed to something else. The component doesn't need to
      * restore anything yet, so it simply passes back the same state object
      * to have the DnD system continue storing it. Finally, let's say this
      * method is messaged with <code>null</code>. This means DnD
      * is finished with this component for now, meaning it should restore
      * state. At this point, it can use the state parameter to restore
      * said state, and of course return <code>null</code> since there's
      * no longer anything to store.
      *
      * @param location the drop location (as calculated by
      *        <code>dropLocationForPoint</code>) or <code>null</code>
      *        if there's no longer a valid drop location
      * @param state the state object saved earlier for this component,
      *        or <code>null</code>
      * @param forDrop whether or not the method is being called because an
      *        actual drop occurred
      * @return any saved state for this component, or <code>null</code> if none
      */
     Object setDropLocation(TransferHandler.DropLocation location,
                            Object state,
                            boolean forDrop) {
 
         Object retVal = null;
         DropLocation listLocation = (DropLocation)location;
 
         if (dropMode == DropMode.USE_SELECTION) {
             if (listLocation == null) {
                 if (!forDrop && state != null) {
                     setSelectedIndices(((int[][])state)[0]);
 
                     int anchor = ((int[][])state)[1][0];
                     int lead = ((int[][])state)[1][1];
 
                     SwingUtilities2.setLeadAnchorWithoutSelection(
                             getSelectionModel(), lead, anchor);
                 }
             } else {
                 if (dropLocation == null) {
                     int[] inds = getSelectedIndices();
                     retVal = new int[][] {inds, {getAnchorSelectionIndex(),
                                                  getLeadSelectionIndex()}};
                 } else {
                     retVal = state;
                 }
 
                 int index = listLocation.getIndex();
                 if (index == -1) {
                     clearSelection();
                     getSelectionModel().setAnchorSelectionIndex(-1);
                     getSelectionModel().setLeadSelectionIndex(-1);
                 } else {
                     setSelectionInterval(index, index);
                 }
             }
         }
 
         DropLocation old = dropLocation;
         dropLocation = listLocation;
         firePropertyChange("dropLocation", old, dropLocation);
 
         return retVal;
     }
 
     /**
      * Returns the location that this component should visually indicate
      * as the drop location during a DnD operation over the component,
      * or {@code null} if no location is to currently be shown.
      * <p>
      * This method is not meant for querying the drop location
      * from a {@code TransferHandler}, as the drop location is only
      * set after the {@code TransferHandler}'s <code>canImport</code>
      * has returned and has allowed for the location to be shown.
      * <p>
      * When this property changes, a property change event with
      * name "dropLocation" is fired by the component.
      * <p>
      * By default, responsibility for listening for changes to this property
      * and indicating the drop location visually lies with the list's
      * {@code ListUI}, which may paint it directly and/or install a cell
      * renderer to do so. Developers wishing to implement custom drop location
      * painting and/or replace the default cell renderer, may need to honor
      * this property.
      *
      * @return the drop location
      * @see #setDropMode
      * @see TransferHandler#canImport(TransferHandler.TransferSupport)
      * @since 1.6
      */
     public final DropLocation getDropLocation() {
         return dropLocation;
     }
 
     /**
      * Returns the next list element whose {@code toString} value
      * starts with the given prefix.
      *
      * @param prefix the string to test for a match
      * @param startIndex the index for starting the search
      * @param bias the search direction, either
      * Position.Bias.Forward or Position.Bias.Backward.
      * @return the index of the next list element that
      * starts with the prefix; otherwise {@code -1}
      * @exception IllegalArgumentException if prefix is {@code null}
      * or startIndex is out of bounds
      * @since 1.4
      */
     public int getNextMatch(String prefix, int startIndex, Position.Bias bias) {
         ListModel<E> model = getModel();
         int max = model.getSize();
         if (prefix == null) {
             throw new IllegalArgumentException();
         }
         if (startIndex < 0 || startIndex >= max) {
             throw new IllegalArgumentException();
         }
         prefix = prefix.toUpperCase();
 
         // start search from the next element after the selected element
         int increment = (bias == Position.Bias.Forward) ? 1 : -1;
         int index = startIndex;
         do {
             E element = model.getElementAt(index);
 
             if (element != null) {
                 String string;
 
                 if (element instanceof String) {
                     string = ((String)element).toUpperCase();
                 }
                 else {
                     string = element.toString();
                     if (string != null) {
                         string = string.toUpperCase();
                     }
                 }
 
                 if (string != null && string.startsWith(prefix)) {
                     return index;
                 }
             }
             index = (index + increment + max) % max;
         } while (index != startIndex);
         return -1;
     }
 
     /**
      * Returns the tooltip text to be used for the given event. This overrides
      * {@code JComponent}'s {@code getToolTipText} to first check the cell
      * renderer component for the cell over which the event occurred, returning
      * its tooltip text, if any. This implementation allows you to specify
      * tooltip text on the cell level, by using {@code setToolTipText} on your
      * cell renderer component.
      * <p>
      * <bold>Note:</bold> For <code>JList</code> to properly display the
      * tooltips of its renderers in this manner, <code>JList</code> must be a
      * registered component with the <code>ToolTipManager</code>. This registration
      * is done automatically in the constructor. However, if at a later point
      * <code>JList</code> is unregistered, by way of a call to
      * {@code setToolTipText(null)}, tips from the renderers will no longer display.
      *
      * @param event the {@code MouseEvent} to fetch the tooltip text for
      * @see JComponent#setToolTipText
      * @see JComponent#getToolTipText
      */
     public String getToolTipText(MouseEvent event) {
         if(event != null) {
             Point p = event.getPoint();
             int index = locationToIndex(p);
             ListCellRenderer<? super E> r = getCellRenderer();
             Rectangle cellBounds;
 
             if (index != -1 && r != null && (cellBounds =
                                getCellBounds(index, index)) != null &&
                                cellBounds.contains(p.x, p.y)) {
                 ListSelectionModel lsm = getSelectionModel();
                 Component rComponent = r.getListCellRendererComponent(
                            this, getModel().getElementAt(index), index,
                            lsm.isSelectedIndex(index),
                            (hasFocus() && (lsm.getLeadSelectionIndex() ==
                                            index)));
 
                 if(rComponent instanceof JComponent) {
                     MouseEvent      newEvent;
 
                     p.translate(-cellBounds.x, -cellBounds.y);
                     newEvent = new MouseEvent(rComponent, event.getID(),
                                               event.getWhen(),
                                               event.getModifiers(),
                                               p.x, p.y,
                                               event.getXOnScreen(),
                                               event.getYOnScreen(),
                                               event.getClickCount(),
                                               event.isPopupTrigger(),
                                               MouseEvent.NOBUTTON);
 
                     String tip = ((JComponent)rComponent).getToolTipText(
                                               newEvent);
 
                     if (tip != null) {
                         return tip;
                     }
                 }
             }
         }
         return super.getToolTipText();
     }
 
     /**
      * --- ListUI Delegations ---
      */
 
 
     /**
      * Returns the cell index closest to the given location in the list's
      * coordinate system. To determine if the cell actually contains the
      * specified location, compare the point against the cell's bounds,
      * as provided by {@code getCellBounds}. This method returns {@code -1}
      * if the model is empty
      * <p>
      * This is a cover method that delegates to the method of the same name
      * in the list's {@code ListUI}. It returns {@code -1} if the list has
      * no {@code ListUI}.
      *
      * @param location the coordinates of the point
      * @return the cell index closest to the given location, or {@code -1}
      */
     public int locationToIndex(Point location) {
         ListUI ui = getUI();
         return (ui != null) ? ui.locationToIndex(this, location) : -1;
     }
 
 
     /**
      * Returns the origin of the specified item in the list's coordinate
      * system. This method returns {@code null} if the index isn't valid.
      * <p>
      * This is a cover method that delegates to the method of the same name
      * in the list's {@code ListUI}. It returns {@code null} if the list has
      * no {@code ListUI}.
      *
      * @param index the cell index
      * @return the origin of the cell, or {@code null}
      */
     public Point indexToLocation(int index) {
         ListUI ui = getUI();
         return (ui != null) ? ui.indexToLocation(this, index) : null;
     }
 
 
     /**
      * Returns the bounding rectangle, in the list's coordinate system,
      * for the range of cells specified by the two indices.
      * These indices can be supplied in any order.
      * <p>
      * If the smaller index is outside the list's range of cells, this method
      * returns {@code null}. If the smaller index is valid, but the larger
      * index is outside the list's range, the bounds of just the first index
      * is returned. Otherwise, the bounds of the valid range is returned.
      * <p>
      * This is a cover method that delegates to the method of the same name
      * in the list's {@code ListUI}. It returns {@code null} if the list has
      * no {@code ListUI}.
      *
      * @param index0 the first index in the range
      * @param index1 the second index in the range
      * @return the bounding rectangle for the range of cells, or {@code null}
      */
     public Rectangle getCellBounds(int index0, int index1) {
         ListUI ui = getUI();
         return (ui != null) ? ui.getCellBounds(this, index0, index1) : null;
     }
 
 
     /**
      * --- ListModel Support ---
      */
 
 
     /**
      * Returns the data model that holds the list of items displayed
      * by the <code>JList</code> component.
      *
      * @return the <code>ListModel</code> that provides the displayed
      *                          list of items
      * @see #setModel
      */
     public ListModel<E> getModel() {
         return dataModel;
     }
 
     /**
      * Sets the model that represents the contents or "value" of the
      * list, notifies property change listeners, and then clears the
      * list's selection.
      * <p>
      * This is a JavaBeans bound property.
      *
      * @param model  the <code>ListModel</code> that provides the
      *                                          list of items for display
      * @exception IllegalArgumentException  if <code>model</code> is
      *                                          <code>null</code>
      * @see #getModel
      * @see #clearSelection
      * @beaninfo
      *       bound: true
      *   attribute: visualUpdate true
      * description: The object that contains the data to be drawn by this JList.
      */
     public void setModel(ListModel<E> model) {
         if (model == null) {
             throw new IllegalArgumentException("model must be non null");
         }
         ListModel<E> oldValue = dataModel;
         dataModel = model;
         firePropertyChange("model", oldValue, dataModel);
         clearSelection();
     }
 
 
     /**
      * Constructs a read-only <code>ListModel</code> from an array of items,
      * and calls {@code setModel} with this model.
      * <p>
      * Attempts to pass a {@code null} value to this method results in
      * undefined behavior and, most likely, exceptions. The created model
      * references the given array directly. Attempts to modify the array
      * after invoking this method results in undefined behavior.
      *
      * @param listData an array of {@code E} containing the items to
      *        display in the list
      * @see #setModel
      */
     public void setListData(final E[] listData) {
         setModel (
             new AbstractListModel<E>() {
                 public int getSize() { return listData.length; }
                 public E getElementAt(int i) { return listData[i]; }
             }
         );
     }
 
 
     /**
      * Constructs a read-only <code>ListModel</code> from a <code>Vector</code>
      * and calls {@code setModel} with this model.
      * <p>
      * Attempts to pass a {@code null} value to this method results in
      * undefined behavior and, most likely, exceptions. The created model
      * references the given {@code Vector} directly. Attempts to modify the
      * {@code Vector} after invoking this method results in undefined behavior.
      *
      * @param listData a <code>Vector</code> containing the items to
      *                                          display in the list
      * @see #setModel
      */
     public void setListData(final Vector<? extends E> listData) {
         setModel (
             new AbstractListModel<E>() {
                 public int getSize() { return listData.size(); }
                 public E getElementAt(int i) { return listData.elementAt(i); }
             }
         );
     }
 
 
     /**
      * --- ListSelectionModel delegations and extensions ---
      */
 
 
     /**
      * Returns an instance of {@code DefaultListSelectionModel}; called
      * during construction to initialize the list's selection model
      * property.
      *
      * @return a {@code DefaultListSelecitonModel}, used to initialize
      *         the list's selection model property during construction
      * @see #setSelectionModel
      * @see DefaultListSelectionModel
      */
     protected ListSelectionModel createSelectionModel() {
         return new DefaultListSelectionModel();
     }
 
 
     /**
      * Returns the current selection model. The selection model maintains the
      * selection state of the list. See the class level documentation for more
      * details.
      *
      * @return the <code>ListSelectionModel</code> that maintains the
      *         list's selections
      *
      * @see #setSelectionModel
      * @see ListSelectionModel
      */
     public ListSelectionModel getSelectionModel() {
         return selectionModel;
     }
 
 
     /**
      * Notifies {@code ListSelectionListener}s added directly to the list
      * of selection changes made to the selection model. {@code JList}
      * listens for changes made to the selection in the selection model,
      * and forwards notification to listeners added to the list directly,
      * by calling this method.
      * <p>
      * This method constructs a {@code ListSelectionEvent} with this list
      * as the source, and the specified arguments, and sends it to the
      * registered {@code ListSelectionListeners}.
      *
      * @param firstIndex the first index in the range, {@code <= lastIndex}
      * @param lastIndex the last index in the range, {@code >= firstIndex}
      * @param isAdjusting whether or not this is one in a series of
      *        multiple events, where changes are still being made
      *
      * @see #addListSelectionListener
      * @see #removeListSelectionListener
      * @see javax.swing.event.ListSelectionEvent
      * @see EventListenerList
      */
     protected void fireSelectionValueChanged(int firstIndex, int lastIndex,
                                              boolean isAdjusting)
     {
         Object[] listeners = listenerList.getListenerList();
         ListSelectionEvent e = null;
 
         for (int i = listeners.length - 2; i >= 0; i -= 2) {
             if (listeners[i] == ListSelectionListener.class) {
                 if (e == null) {
                     e = new ListSelectionEvent(this, firstIndex, lastIndex,
                                                isAdjusting);
                 }
                 ((ListSelectionListener)listeners[i+1]).valueChanged(e);
             }
         }
     }
 
 
     /* A ListSelectionListener that forwards ListSelectionEvents from
      * the selectionModel to the JList ListSelectionListeners.  The
      * forwarded events only differ from the originals in that their
      * source is the JList instead of the selectionModel itself.
      */
     private class ListSelectionHandler implements ListSelectionListener, Serializable
     {
         public void valueChanged(ListSelectionEvent e) {
             fireSelectionValueChanged(e.getFirstIndex(),
                                       e.getLastIndex(),
                                       e.getValueIsAdjusting());
         }
     }
 
 
     /**
      * Adds a listener to the list, to be notified each time a change to the
      * selection occurs; the preferred way of listening for selection state
      * changes. {@code JList} takes care of listening for selection state
      * changes in the selection model, and notifies the given listener of
      * each change. {@code ListSelectionEvent}s sent to the listener have a
      * {@code source} property set to this list.
      *
      * @param listener the {@code ListSelectionListener} to add
      * @see #getSelectionModel
      * @see #getListSelectionListeners
      */
     public void addListSelectionListener(ListSelectionListener listener)
     {
         if (selectionListener == null) {
             selectionListener = new ListSelectionHandler();
             getSelectionModel().addListSelectionListener(selectionListener);
         }
 
         listenerList.add(ListSelectionListener.class, listener);
     }
 
 
     /**
      * Removes a selection listener from the list.
      *
      * @param listener the {@code ListSelectionListener} to remove
      * @see #addListSelectionListener
      * @see #getSelectionModel
      */
     public void removeListSelectionListener(ListSelectionListener listener) {
         listenerList.remove(ListSelectionListener.class, listener);
     }
 
 
     /**
      * Returns an array of all the {@code ListSelectionListener}s added
      * to this {@code JList} by way of {@code addListSelectionListener}.
      *
      * @return all of the {@code ListSelectionListener}s on this list, or
      *         an empty array if no listeners have been added
      * @see #addListSelectionListener
      * @since 1.4
      */
     public ListSelectionListener[] getListSelectionListeners() {
         return listenerList.getListeners(ListSelectionListener.class);
     }
 
 
     /**
      * Sets the <code>selectionModel</code> for the list to a
      * non-<code>null</code> <code>ListSelectionModel</code>
      * implementation. The selection model handles the task of making single
      * selections, selections of contiguous ranges, and non-contiguous
      * selections.
      * <p>
      * This is a JavaBeans bound property.
      *
      * @param selectionModel  the <code>ListSelectionModel</code> that
      *                          implements the selections
      * @exception IllegalArgumentException   if <code>selectionModel</code>
      *                                          is <code>null</code>
      * @see #getSelectionModel
      * @beaninfo
      *       bound: true
      * description: The selection model, recording which cells are selected.
      */
     public void setSelectionModel(ListSelectionModel selectionModel) {
         if (selectionModel == null) {
             throw new IllegalArgumentException("selectionModel must be non null");
         }
 
         /* Remove the forwarding ListSelectionListener from the old
          * selectionModel, and add it to the new one, if necessary.
          */
         if (selectionListener != null) {
             this.selectionModel.removeListSelectionListener(selectionListener);
             selectionModel.addListSelectionListener(selectionListener);
         }
 
         ListSelectionModel oldValue = this.selectionModel;
         this.selectionModel = selectionModel;
         firePropertyChange("selectionModel", oldValue, selectionModel);
     }
 
 
     /**
      * Sets the selection mode for the list. This is a cover method that sets
      * the selection mode directly on the selection model.
      * <p>
      * The following list describes the accepted selection modes:
      * <ul>
      * <li>{@code ListSelectionModel.SINGLE_SELECTION} -
      *   Only one list index can be selected at a time. In this mode,
      *   {@code setSelectionInterval} and {@code addSelectionInterval} are
      *   equivalent, both replacing the current selection with the index
      *   represented by the second argument (the "lead").
      * <li>{@code ListSelectionModel.SINGLE_INTERVAL_SELECTION} -
      *   Only one contiguous interval can be selected at a time.
      *   In this mode, {@code addSelectionInterval} behaves like
      *   {@code setSelectionInterval} (replacing the current selection},
      *   unless the given interval is immediately adjacent to or overlaps
      *   the existing selection, and can be used to grow the selection.
      * <li>{@code ListSelectionModel.MULTIPLE_INTERVAL_SELECTION} -
      *   In this mode, there's no restriction on what can be selected.
      *   This mode is the default.
      * </ul>
      *
      * @param selectionMode the selection mode
      * @see #getSelectionMode
      * @throws IllegalArgumentException if the selection mode isn't
      *         one of those allowed
      * @beaninfo
      * description: The selection mode.
      *        enum: SINGLE_SELECTION            ListSelectionModel.SINGLE_SELECTION
      *              SINGLE_INTERVAL_SELECTION   ListSelectionModel.SINGLE_INTERVAL_SELECTION
      *              MULTIPLE_INTERVAL_SELECTION ListSelectionModel.MULTIPLE_INTERVAL_SELECTION
      */
     public void setSelectionMode(int selectionMode) {
         getSelectionModel().setSelectionMode(selectionMode);
     }
 
     /**
      * Returns the current selection mode for the list. This is a cover
      * method that delegates to the method of the same name on the
      * list's selection model.
      *
      * @return the current selection mode
      * @see #setSelectionMode
      */
     public int getSelectionMode() {
         return getSelectionModel().getSelectionMode();
     }
 
 
     /**
      * Returns the anchor selection index. This is a cover method that
      * delegates to the method of the same name on the list's selection model.
      *
      * @return the anchor selection index
      * @see ListSelectionModel#getAnchorSelectionIndex
      */
     public int getAnchorSelectionIndex() {
         return getSelectionModel().getAnchorSelectionIndex();
     }
 
 
     /**
      * Returns the lead selection index. This is a cover method that
      * delegates to the method of the same name on the list's selection model.
      *
      * @return the lead selection index
      * @see ListSelectionModel#getLeadSelectionIndex
      * @beaninfo
      * description: The lead selection index.
      */
     public int getLeadSelectionIndex() {
         return getSelectionModel().getLeadSelectionIndex();
     }
 
 
     /**
      * Returns the smallest selected cell index, or {@code -1} if the selection
      * is empty. This is a cover method that delegates to the method of the same
      * name on the list's selection model.
      *
      * @return the smallest selected cell index, or {@code -1}
      * @see ListSelectionModel#getMinSelectionIndex
      */
     public int getMinSelectionIndex() {
         return getSelectionModel().getMinSelectionIndex();
     }
 
 
     /**
      * Returns the largest selected cell index, or {@code -1} if the selection
      * is empty. This is a cover method that delegates to the method of the same
      * name on the list's selection model.
      *
      * @return the largest selected cell index
      * @see ListSelectionModel#getMaxSelectionIndex
      */
     public int getMaxSelectionIndex() {
         return getSelectionModel().getMaxSelectionIndex();
     }
 
 
     /**
      * Returns {@code true} if the specified index is selected,
      * else {@code false}. This is a cover method that delegates to the method
      * of the same name on the list's selection model.
      *
      * @param index index to be queried for selection state
      * @return {@code true} if the specified index is selected,
      *         else {@code false}
      * @see ListSelectionModel#isSelectedIndex
      * @see #setSelectedIndex
      */
     public boolean isSelectedIndex(int index) {
         return getSelectionModel().isSelectedIndex(index);
     }
 
 
     /**
      * Returns {@code true} if nothing is selected, else {@code false}.
      * This is a cover method that delegates to the method of the same
      * name on the list's selection model.
      *
      * @return {@code true} if nothing is selected, else {@code false}
      * @see ListSelectionModel#isSelectionEmpty
      * @see #clearSelection
      */
     public boolean isSelectionEmpty() {
         return getSelectionModel().isSelectionEmpty();
     }
 
 
     /**
      * Clears the selection; after calling this method, {@code isSelectionEmpty}
      * will return {@code true}. This is a cover method that delegates to the
      * method of the same name on the list's selection model.
      *
      * @see ListSelectionModel#clearSelection
      * @see #isSelectionEmpty
      */
     public void clearSelection() {
         getSelectionModel().clearSelection();
     }
 
 
     /**
      * Selects the specified interval. Both {@code anchor} and {@code lead}
      * indices are included. {@code anchor} doesn't have to be less than or
      * equal to {@code lead}. This is a cover method that delegates to the
      * method of the same name on the list's selection model.
      * <p>
      * Refer to the documentation of the selection model class being used
      * for details on how values less than {@code 0} are handled.
      *
      * @param anchor the first index to select
      * @param lead the last index to select
      * @see ListSelectionModel#setSelectionInterval
      * @see DefaultListSelectionModel#setSelectionInterval
      * @see #createSelectionModel
      * @see #addSelectionInterval
      * @see #removeSelectionInterval
      */
     public void setSelectionInterval(int anchor, int lead) {
         getSelectionModel().setSelectionInterval(anchor, lead);
     }
 
 
     /**
      * Sets the selection to be the union of the specified interval with current
      * selection. Both the {@code anchor} and {@code lead} indices are
      * included. {@code anchor} doesn't have to be less than or
      * equal to {@code lead}. This is a cover method that delegates to the
      * method of the same name on the list's selection model.
      * <p>
      * Refer to the documentation of the selection model class being used
      * for details on how values less than {@code 0} are handled.
      *
      * @param anchor the first index to add to the selection
      * @param lead the last index to add to the selection
      * @see ListSelectionModel#addSelectionInterval
      * @see DefaultListSelectionModel#addSelectionInterval
      * @see #createSelectionModel
      * @see #setSelectionInterval
      * @see #removeSelectionInterval
      */
     public void addSelectionInterval(int anchor, int lead) {
         getSelectionModel().addSelectionInterval(anchor, lead);
     }
 
 
     /**
      * Sets the selection to be the set difference of the specified interval
      * and the current selection. Both the {@code index0} and {@code index1}
      * indices are removed. {@code index0} doesn't have to be less than or
      * equal to {@code index1}. This is a cover method that delegates to the
      * method of the same name on the list's selection model.
      * <p>
      * Refer to the documentation of the selection model class being used
      * for details on how values less than {@code 0} are handled.
      *
      * @param index0 the first index to remove from the selection
      * @param index1 the last index to remove from the selection
      * @see ListSelectionModel#removeSelectionInterval
      * @see DefaultListSelectionModel#removeSelectionInterval
      * @see #createSelectionModel
      * @see #setSelectionInterval
      * @see #addSelectionInterval
      */
     public void removeSelectionInterval(int index0, int index1) {
         getSelectionModel().removeSelectionInterval(index0, index1);
     }
 
 
     /**
      * Sets the selection model's {@code valueIsAdjusting} property. When
      * {@code true}, upcoming changes to selection should be considered part
      * of a single change. This property is used internally and developers
      * typically need not call this method. For example, when the model is being
      * updated in response to a user drag, the value of the property is set
      * to {@code true} when the drag is initiated and set to {@code false}
      * when the drag is finished. This allows listeners to update only
      * when a change has been finalized, rather than handling all of the
      * intermediate values.
      * <p>
      * You may want to use this directly if making a series of changes
      * that should be considered part of a single change.
      * <p>
      * This is a cover method that delegates to the method of the same name on
      * the list's selection model. See the documentation for
      * {@link javax.swing.ListSelectionModel#setValueIsAdjusting} for
      * more details.
      *
      * @param b the new value for the property
      * @see ListSelectionModel#setValueIsAdjusting
      * @see javax.swing.event.ListSelectionEvent#getValueIsAdjusting
      * @see #getValueIsAdjusting
      */
     public void setValueIsAdjusting(boolean b) {
         getSelectionModel().setValueIsAdjusting(b);
     }
 
 
     /**
      * Returns the value of the selection model's {@code isAdjusting} property.
      * <p>
      * This is a cover method that delegates to the method of the same name on
      * the list's selection model.
      *
      * @return the value of the selection model's {@code isAdjusting} property.
      *
      * @see #setValueIsAdjusting
      * @see ListSelectionModel#getValueIsAdjusting
      */
     public boolean getValueIsAdjusting() {
         return getSelectionModel().getValueIsAdjusting();
     }
 
 
     /**
      * Returns an array of all of the selected indices, in increasing
      * order.
      *
      * @return all of the selected indices, in increasing order,
      *         or an empty array if nothing is selected
      * @see #removeSelectionInterval
      * @see #addListSelectionListener
      */
     @Transient
     public int[] getSelectedIndices() {
         ListSelectionModel sm = getSelectionModel();
         int iMin = sm.getMinSelectionIndex();
         int iMax = sm.getMaxSelectionIndex();
 
         if ((iMin < 0) || (iMax < 0)) {
             return new int[0];
         }
 
         int[] rvTmp = new int[1+ (iMax - iMin)];
         int n = 0;
         for(int i = iMin; i <= iMax; i++) {
             if (sm.isSelectedIndex(i)) {
                 rvTmp[n++] = i;
             }
         }
         int[] rv = new int[n];
         System.arraycopy(rvTmp, 0, rv, 0, n);
         return rv;
     }
 
 
     /**
      * Selects a single cell. Does nothing if the given index is greater
      * than or equal to the model size. This is a convenience method that uses
      * {@code setSelectionInterval} on the selection model. Refer to the
      * documentation for the selection model class being used for details on
      * how values less than {@code 0} are handled.
      *
      * @param index the index of the cell to select
      * @see ListSelectionModel#setSelectionInterval
      * @see #isSelectedIndex
      * @see #addListSelectionListener
      * @beaninfo
      * description: The index of the selected cell.
      */
     public void setSelectedIndex(int index) {
         if (index >= getModel().getSize()) {
             return;
         }
         getSelectionModel().setSelectionInterval(index, index);
     }
 
 
     /**
      * Changes the selection to be the set of indices specified by the given
      * array. Indices greater than or equal to the model size are ignored.
      * This is a convenience method that clears the selection and then uses
      * {@code addSelectionInterval} on the selection model to add the indices.
      * Refer to the documentation of the selection model class being used for
      * details on how values less than {@code 0} are handled.
      *
      * @param indices an array of the indices of the cells to select,
      *                {@code non-null}
      * @see ListSelectionModel#addSelectionInterval
      * @see #isSelectedIndex
      * @see #addListSelectionListener
      * @throws NullPointerException if the given array is {@code null}
      */
     public void setSelectedIndices(int[] indices) {
         ListSelectionModel sm = getSelectionModel();
         sm.clearSelection();
         int size = getModel().getSize();
         for (int i : indices) {
             if (i < size) {
                 sm.addSelectionInterval(i, i);
             }
         }
     }
 
 
     /**
      * Returns an array of all the selected values, in increasing order based
      * on their indices in the list.
      *
      * @return the selected values, or an empty array if nothing is selected
      * @see #isSelectedIndex
      * @see #getModel
      * @see #addListSelectionListener
      *
      * @deprecated As of JDK 1.7, replaced by {@link #getSelectedValuesList()}
      */
     @Deprecated
     public Object[] getSelectedValues() {
         ListSelectionModel sm = getSelectionModel();
         ListModel<E> dm = getModel();
 
         int iMin = sm.getMinSelectionIndex();
         int iMax = sm.getMaxSelectionIndex();
 
         if ((iMin < 0) || (iMax < 0)) {
             return new Object[0];
         }
 
         Object[] rvTmp = new Object[1+ (iMax - iMin)];
         int n = 0;
         for(int i = iMin; i <= iMax; i++) {
             if (sm.isSelectedIndex(i)) {
                 rvTmp[n++] = dm.getElementAt(i);
             }
         }
         Object[] rv = new Object[n];
         System.arraycopy(rvTmp, 0, rv, 0, n);
         return rv;
     }
 
     /**
      * Returns a list of all the selected items, in increasing order based
      * on their indices in the list.
      *
      * @return the selected items, or an empty list if nothing is selected
      * @see #isSelectedIndex
      * @see #getModel
      * @see #addListSelectionListener
      *
      * @since 1.7
      */
     public List<E> getSelectedValuesList() {
         ListSelectionModel sm = getSelectionModel();
         ListModel<E> dm = getModel();
 
         int iMin = sm.getMinSelectionIndex();
         int iMax = sm.getMaxSelectionIndex();
 
         if ((iMin < 0) || (iMax < 0)) {
             return Collections.emptyList();
         }
 
         List<E> selectedItems = new ArrayList<E>();
         for(int i = iMin; i <= iMax; i++) {
             if (sm.isSelectedIndex(i)) {
                 selectedItems.add(dm.getElementAt(i));
             }
         }
         return selectedItems;
     }
 
 
     /**
      * Returns the smallest selected cell index; <i>the selection</i> when only
      * a single item is selected in the list. When multiple items are selected,
      * it is simply the smallest selected index. Returns {@code -1} if there is
      * no selection.
      * <p>
      * This method is a cover that delegates to {@code getMinSelectionIndex}.
      *
      * @return the smallest selected cell index
      * @see #getMinSelectionIndex
      * @see #addListSelectionListener
      */
     public int getSelectedIndex() {
         return getMinSelectionIndex();
     }
 
 
     /**
      * Returns the value for the smallest selected cell index;
      * <i>the selected value</i> when only a single item is selected in the
      * list. When multiple items are selected, it is simply the value for the
      * smallest selected index. Returns {@code null} if there is no selection.
      * <p>
      * This is a convenience method that simply returns the model value for
      * {@code getMinSelectionIndex}.
      *
      * @return the first selected value
      * @see #getMinSelectionIndex
      * @see #getModel
      * @see #addListSelectionListener
      */
     public E getSelectedValue() {
         int i = getMinSelectionIndex();
         return (i == -1) ? null : getModel().getElementAt(i);
     }
 
 
     /**
      * Selects the specified object from the list.
      *
      * @param anObject      the object to select
      * @param shouldScroll  {@code true} if the list should scroll to display
      *                      the selected object, if one exists; otherwise {@code false}
      */
     public void setSelectedValue(Object anObject,boolean shouldScroll) {
         if(anObject == null)
             setSelectedIndex(-1);
         else if(!anObject.equals(getSelectedValue())) {
             int i,c;
             ListModel<E> dm = getModel();
             for(i=0,c=dm.getSize();i<c;i++)
                 if(anObject.equals(dm.getElementAt(i))){
                     setSelectedIndex(i);
                     if(shouldScroll)
                         ensureIndexIsVisible(i);
                     repaint();  /** FIX-ME setSelectedIndex does not redraw all the time with the basic l&f**/
                     return;
                 }
             setSelectedIndex(-1);
         }
         repaint(); /** FIX-ME setSelectedIndex does not redraw all the time with the basic l&f**/
     }
 
 
 
     /**
      * --- The Scrollable Implementation ---
      */
 
     private void checkScrollableParameters(Rectangle visibleRect, int orientation) {
         if (visibleRect == null) {
             throw new IllegalArgumentException("visibleRect must be non-null");
         }
         switch (orientation) {
         case SwingConstants.VERTICAL:
         case SwingConstants.HORIZONTAL:
             break;
         default:
             throw new IllegalArgumentException("orientation must be one of: VERTICAL, HORIZONTAL");
         }
     }
 
 
     /**
      * Computes the size of viewport needed to display {@code visibleRowCount}
      * rows. The value returned by this method depends on the layout
      * orientation:
      * <p>
      * <b>{@code VERTICAL}:</b>
      * <br>
      * This is trivial if both {@code fixedCellWidth} and {@code fixedCellHeight}
      * have been set (either explicitly or by specifying a prototype cell value).
      * The width is simply the {@code fixedCellWidth} plus the list's horizontal
      * insets. The height is the {@code fixedCellHeight} multiplied by the
      * {@code visibleRowCount}, plus the list's vertical insets.
      * <p>
      * If either {@code fixedCellWidth} or {@code fixedCellHeight} haven't been
      * specified, heuristics are used. If the model is empty, the width is
      * the {@code fixedCellWidth}, if greater than {@code 0}, or a hard-coded
      * value of {@code 256}. The height is the {@code fixedCellHeight} multiplied
      * by {@code visibleRowCount}, if {@code fixedCellHeight} is greater than
      * {@code 0}, otherwise it is a hard-coded value of {@code 16} multiplied by
      * {@code visibleRowCount}.
      * <p>
      * If the model isn't empty, the width is the preferred size's width,
      * typically the width of the widest list element. The height is the
      * {@code fixedCellHeight} multiplied by the {@code visibleRowCount},
      * plus the list's vertical insets.
      * <p>
      * <b>{@code VERTICAL_WRAP} or {@code HORIZONTAL_WRAP}:</b>
      * <br>
      * This method simply returns the value from {@code getPreferredSize}.
      * The list's {@code ListUI} is expected to override {@code getPreferredSize}
      * to return an appropriate value.
      *
      * @return a dimension containing the size of the viewport needed
      *          to display {@code visibleRowCount} rows
      * @see #getPreferredScrollableViewportSize
      * @see #setPrototypeCellValue
      */
     public Dimension getPreferredScrollableViewportSize()
     {
         if (getLayoutOrientation() != VERTICAL) {
             return getPreferredSize();
         }
         Insets insets = getInsets();
         int dx = insets.left + insets.right;
         int dy = insets.top + insets.bottom;
 
         int visibleRowCount = getVisibleRowCount();
         int fixedCellWidth = getFixedCellWidth();
         int fixedCellHeight = getFixedCellHeight();
 
         if ((fixedCellWidth > 0) && (fixedCellHeight > 0)) {
             int width = fixedCellWidth + dx;
             int height = (visibleRowCount * fixedCellHeight) + dy;
             return new Dimension(width, height);
         }
         else if (getModel().getSize() > 0) {
             int width = getPreferredSize().width;
             int height;
             Rectangle r = getCellBounds(0, 0);
             if (r != null) {
                 height = (visibleRowCount * r.height) + dy;
             }
             else {
                 // Will only happen if UI null, shouldn't matter what we return
                 height = 1;
             }
             return new Dimension(width, height);
         }
         else {
             fixedCellWidth = (fixedCellWidth > 0) ? fixedCellWidth : 256;
             fixedCellHeight = (fixedCellHeight > 0) ? fixedCellHeight : 16;
             return new Dimension(fixedCellWidth, fixedCellHeight * visibleRowCount);
         }
     }
 
 
     /**
      * Returns the distance to scroll to expose the next or previous
      * row (for vertical scrolling) or column (for horizontal scrolling).
      * <p>
      * For horizontal scrolling, if the layout orientation is {@code VERTICAL},
      * then the list's font size is returned (or {@code 1} if the font is
      * {@code null}).
      *
      * @param visibleRect the view area visible within the viewport
      * @param orientation {@code SwingConstants.HORIZONTAL} or
      *                    {@code SwingConstants.VERTICAL}
      * @param direction less or equal to zero to scroll up/back,
      *                  greater than zero for down/forward
      * @return the "unit" increment for scrolling in the specified direction;
      *         always positive
      * @see #getScrollableBlockIncrement
      * @see Scrollable#getScrollableUnitIncrement
      * @throws IllegalArgumentException if {@code visibleRect} is {@code null}, or
      *         {@code orientation} isn't one of {@code SwingConstants.VERTICAL} or
      *         {@code SwingConstants.HORIZONTAL}
      */
     public int getScrollableUnitIncrement(Rectangle visibleRect, int orientation, int direction)
     {
         checkScrollableParameters(visibleRect, orientation);
 
         if (orientation == SwingConstants.VERTICAL) {
             int row = locationToIndex(visibleRect.getLocation());
 
             if (row == -1) {
                 return 0;
             }
             else {
                 /* Scroll Down */
                 if (direction > 0) {
                     Rectangle r = getCellBounds(row, row);
                     return (r == null) ? 0 : r.height - (visibleRect.y - r.y);
                 }
                 /* Scroll Up */
                 else {
                     Rectangle r = getCellBounds(row, row);
 
                     /* The first row is completely visible and it's row 0.
                      * We're done.
                      */
                     if ((r.y == visibleRect.y) && (row == 0))  {
                         return 0;
                     }
                     /* The first row is completely visible, return the
                      * height of the previous row or 0 if the first row
                      * is the top row of the list.
                      */
                     else if (r.y == visibleRect.y) {
                         Point loc = r.getLocation();
                         loc.y--;
                         int prevIndex = locationToIndex(loc);
                         Rectangle prevR = getCellBounds(prevIndex, prevIndex);
 
                         if (prevR == null || prevR.y >= r.y) {
                             return 0;
                         }
                         return prevR.height;
                     }
                     /* The first row is partially visible, return the
                      * height of hidden part.
                      */
                     else {
                         return visibleRect.y - r.y;
                     }
                 }
             }
         } else if (orientation == SwingConstants.HORIZONTAL &&
                            getLayoutOrientation() != JList.VERTICAL) {
             boolean leftToRight = getComponentOrientation().isLeftToRight();
             int index;
             Point leadingPoint;
 
             if (leftToRight) {
                 leadingPoint = visibleRect.getLocation();
             }
             else {
                 leadingPoint = new Point(visibleRect.x + visibleRect.width -1,
                                          visibleRect.y);
             }
             index = locationToIndex(leadingPoint);
 
             if (index != -1) {
                 Rectangle cellBounds = getCellBounds(index, index);
                 if (cellBounds != null && cellBounds.contains(leadingPoint)) {
                     int leadingVisibleEdge;
                     int leadingCellEdge;
 
                     if (leftToRight) {
                         leadingVisibleEdge = visibleRect.x;
                         leadingCellEdge = cellBounds.x;
                     }
                     else {
                         leadingVisibleEdge = visibleRect.x + visibleRect.width;
                         leadingCellEdge = cellBounds.x + cellBounds.width;
                     }
 
                     if (leadingCellEdge != leadingVisibleEdge) {
                         if (direction < 0) {
                             // Show remainder of leading cell
                             return Math.abs(leadingVisibleEdge - leadingCellEdge);
 
                         }
                         else if (leftToRight) {
                             // Hide rest of leading cell
                             return leadingCellEdge + cellBounds.width - leadingVisibleEdge;
                         }
                         else {
                             // Hide rest of leading cell
                             return leadingVisibleEdge - cellBounds.x;
                         }
                     }
                     // ASSUME: All cells are the same width
                     return cellBounds.width;
                 }
             }
         }
         Font f = getFont();
         return (f != null) ? f.getSize() : 1;
     }
 
 
     /**
      * Returns the distance to scroll to expose the next or previous block.
      * <p>
      * For vertical scrolling, the following rules are used:
      * <ul>
      * <li>if scrolling down, returns the distance to scroll so that the last
      * visible element becomes the first completely visible element
      * <li>if scrolling up, returns the distance to scroll so that the first
      * visible element becomes the last completely visible element
      * <li>returns {@code visibleRect.height} if the list is empty
      * </ul>
      * <p>
      * For horizontal scrolling, when the layout orientation is either
      * {@code VERTICAL_WRAP} or {@code HORIZONTAL_WRAP}:
      * <ul>
      * <li>if scrolling right, returns the distance to scroll so that the
      * last visible element becomes
      * the first completely visible element
      * <li>if scrolling left, returns the distance to scroll so that the first
      * visible element becomes the last completely visible element
      * <li>returns {@code visibleRect.width} if the list is empty
      * </ul>
      * <p>
      * For horizontal scrolling and {@code VERTICAL} orientation,
      * returns {@code visibleRect.width}.
      * <p>
      * Note that the value of {@code visibleRect} must be the equal to
      * {@code this.getVisibleRect()}.
      *
      * @param visibleRect the view area visible within the viewport
      * @param orientation {@code SwingConstants.HORIZONTAL} or
      *                    {@code SwingConstants.VERTICAL}
      * @param direction less or equal to zero to scroll up/back,
      *                  greater than zero for down/forward
      * @return the "block" increment for scrolling in the specified direction;
      *         always positive
      * @see #getScrollableUnitIncrement
      * @see Scrollable#getScrollableBlockIncrement
      * @throws IllegalArgumentException if {@code visibleRect} is {@code null}, or
      *         {@code orientation} isn't one of {@code SwingConstants.VERTICAL} or
      *         {@code SwingConstants.HORIZONTAL}
      */
     public int getScrollableBlockIncrement(Rectangle visibleRect, int orientation, int direction) {
         checkScrollableParameters(visibleRect, orientation);
         if (orientation == SwingConstants.VERTICAL) {
             int inc = visibleRect.height;
             /* Scroll Down */
             if (direction > 0) {
                 // last cell is the lowest left cell
                 int last = locationToIndex(new Point(visibleRect.x, visibleRect.y+visibleRect.height-1));
                 if (last != -1) {
                     Rectangle lastRect = getCellBounds(last,last);
                     if (lastRect != null) {
                         inc = lastRect.y - visibleRect.y;
                         if ( (inc == 0) && (last < getModel().getSize()-1) ) {
                             inc = lastRect.height;
                         }
                     }
                 }
             }
             /* Scroll Up */
             else {
                 int newFirst = locationToIndex(new Point(visibleRect.x, visibleRect.y-visibleRect.height));
                 int first = getFirstVisibleIndex();
                 if (newFirst != -1) {
                     if (first == -1) {
                         first = locationToIndex(visibleRect.getLocation());
                     }
                     Rectangle newFirstRect = getCellBounds(newFirst,newFirst);
                     Rectangle firstRect = getCellBounds(first,first);
                     if ((newFirstRect != null) && (firstRect!=null)) {
                         while ( (newFirstRect.y + visibleRect.height <
                                  firstRect.y + firstRect.height) &&
                                 (newFirstRect.y < firstRect.y) ) {
                             newFirst++;
                             newFirstRect = getCellBounds(newFirst,newFirst);
                         }
                         inc = visibleRect.y - newFirstRect.y;
                         if ( (inc <= 0) && (newFirstRect.y > 0)) {
                             newFirst--;
                             newFirstRect = getCellBounds(newFirst,newFirst);
                             if (newFirstRect != null) {
                                 inc = visibleRect.y - newFirstRect.y;
                             }
                         }
                     }
                 }
             }
             return inc;
         }
         else if (orientation == SwingConstants.HORIZONTAL &&
                  getLayoutOrientation() != JList.VERTICAL) {
             boolean leftToRight = getComponentOrientation().isLeftToRight();
             int inc = visibleRect.width;
             /* Scroll Right (in ltr mode) or Scroll Left (in rtl mode) */
             if (direction > 0) {
                 // position is upper right if ltr, or upper left otherwise
                 int x = visibleRect.x + (leftToRight ? (visibleRect.width - 1) : 0);
                 int last = locationToIndex(new Point(x, visibleRect.y));
 
                 if (last != -1) {
                     Rectangle lastRect = getCellBounds(last,last);
                     if (lastRect != null) {
                         if (leftToRight) {
                             inc = lastRect.x - visibleRect.x;
                         } else {
                             inc = visibleRect.x + visibleRect.width
                                       - (lastRect.x + lastRect.width);
                         }
                         if (inc < 0) {
                             inc += lastRect.width;
                         } else if ( (inc == 0) && (last < getModel().getSize()-1) ) {
                             inc = lastRect.width;
                         }
                     }
                 }
             }
             /* Scroll Left (in ltr mode) or Scroll Right (in rtl mode) */
             else {
                 // position is upper left corner of the visibleRect shifted
                 // left by the visibleRect.width if ltr, or upper right shifted
                 // right by the visibleRect.width otherwise
                 int x = visibleRect.x + (leftToRight
                                          ? -visibleRect.width
                                          : visibleRect.width - 1 + visibleRect.width);
                 int first = locationToIndex(new Point(x, visibleRect.y));
 
                 if (first != -1) {
                     Rectangle firstRect = getCellBounds(first,first);
                     if (firstRect != null) {
                         // the right of the first cell
                         int firstRight = firstRect.x + firstRect.width;
 
                         if (leftToRight) {
                             if ((firstRect.x < visibleRect.x - visibleRect.width)
                                     && (firstRight < visibleRect.x)) {
                                 inc = visibleRect.x - firstRight;
                             } else {
                                 inc = visibleRect.x - firstRect.x;
                             }
                         } else {
                             int visibleRight = visibleRect.x + visibleRect.width;
 
                             if ((firstRight > visibleRight + visibleRect.width)
                                     && (firstRect.x > visibleRight)) {
                                 inc = firstRect.x - visibleRight;
                             } else {
                                 inc = firstRight - visibleRight;
                             }
                         }
                     }
                 }
             }
             return inc;
         }
         return visibleRect.width;
     }
 
 
     /**
      * Returns {@code true} if this {@code JList} is displayed in a
      * {@code JViewport} and the viewport is wider than the list's
      * preferred width, or if the layout orientation is {@code HORIZONTAL_WRAP}
      * and {@code visibleRowCount <= 0}; otherwise returns {@code false}.
      * <p>
      * If {@code false}, then don't track the viewport's width. This allows
      * horizontal scrolling if the {@code JViewport} is itself embedded in a
      * {@code JScrollPane}.
      *
      * @return whether or not an enclosing viewport should force the list's
      *         width to match its own
      * @see Scrollable#getScrollableTracksViewportWidth
      */
     public boolean getScrollableTracksViewportWidth() {
         if (getLayoutOrientation() == HORIZONTAL_WRAP &&
                                       getVisibleRowCount() <= 0) {
             return true;
         }
         Container parent = SwingUtilities.getUnwrappedParent(this);
         if (parent instanceof JViewport) {
             return parent.getWidth() > getPreferredSize().width;
         }
         return false;
     }
 
     /**
      * Returns {@code true} if this {@code JList} is displayed in a
      * {@code JViewport} and the viewport is taller than the list's
      * preferred height, or if the layout orientation is {@code VERTICAL_WRAP}
      * and {@code visibleRowCount <= 0}; otherwise returns {@code false}.
      * <p>
      * If {@code false}, then don't track the viewport's height. This allows
      * vertical scrolling if the {@code JViewport} is itself embedded in a
      * {@code JScrollPane}.
      *
      * @return whether or not an enclosing viewport should force the list's
      *         height to match its own
      * @see Scrollable#getScrollableTracksViewportHeight
      */
     public boolean getScrollableTracksViewportHeight() {
         if (getLayoutOrientation() == VERTICAL_WRAP &&
                      getVisibleRowCount() <= 0) {
             return true;
         }
         Container parent = SwingUtilities.getUnwrappedParent(this);
         if (parent instanceof JViewport) {
             return parent.getHeight() > getPreferredSize().height;
         }
         return false;
     }
 
 
     /*
      * See {@code readObject} and {@code writeObject} in {@code JComponent}
      * for more information about serialization in Swing.
      */
     private void writeObject(ObjectOutputStream s) throws IOException {
         s.defaultWriteObject();
         if (getUIClassID().equals(uiClassID)) {
             byte count = JComponent.getWriteObjCounter(this);
             JComponent.setWriteObjCounter(this, --count);
             if (count == 0 && ui != null) {
                 ui.installUI(this);
             }
         }
     }
 
 
     /**
      * Returns a {@code String} representation of this {@code JList}.
      * This method is intended to be used only for debugging purposes,
      * and the content and format of the returned {@code String} may vary
      * between implementations. The returned {@code String} may be empty,
      * but may not be {@code null}.
      *
      * @return  a {@code String} representation of this {@code JList}.
      */
     protected String paramString() {
         String selectionForegroundString = (selectionForeground != null ?
                                             selectionForeground.toString() :
                                             "");
         String selectionBackgroundString = (selectionBackground != null ?
                                             selectionBackground.toString() :
                                             "");
 
         return super.paramString() +
         ",fixedCellHeight=" + fixedCellHeight +
         ",fixedCellWidth=" + fixedCellWidth +
         ",horizontalScrollIncrement=" + horizontalScrollIncrement +
         ",selectionBackground=" + selectionBackgroundString +
         ",selectionForeground=" + selectionForegroundString +
         ",visibleRowCount=" + visibleRowCount +
         ",layoutOrientation=" + layoutOrientation;
     }
 
 
     /**
      * --- Accessibility Support ---
      */
 
     /**
      * Gets the {@code AccessibleContext} associated with this {@code JList}.
      * For {@code JList}, the {@code AccessibleContext} takes the form of an
      * {@code AccessibleJList}.
      * <p>
      * A new {@code AccessibleJList} instance is created if necessary.
      *
      * @return an {@code AccessibleJList} that serves as the
      *         {@code AccessibleContext} of this {@code JList}
      */
     public AccessibleContext getAccessibleContext() {
         if (accessibleContext == null) {
             accessibleContext = new AccessibleJList();
         }
         return accessibleContext;
     }
 
     /**
      * This class implements accessibility support for the
      * {@code JList} class. It provides an implementation of the
      * Java Accessibility API appropriate to list user-interface
      * elements.
      * <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}.
      */
     protected class AccessibleJList extends AccessibleJComponent
         implements AccessibleSelection, PropertyChangeListener,
         ListSelectionListener, ListDataListener {
 
         int leadSelectionIndex;
 
         public AccessibleJList() {
             super();
             JList.this.addPropertyChangeListener(this);
             JList.this.getSelectionModel().addListSelectionListener(this);
             JList.this.getModel().addListDataListener(this);
             leadSelectionIndex = JList.this.getLeadSelectionIndex();
         }
 
         /**
          * Property Change Listener change method. Used to track changes
          * to the DataModel and ListSelectionModel, in order to re-set
          * listeners to those for reporting changes there via the Accessibility
          * PropertyChange mechanism.
          *
          * @param e PropertyChangeEvent
          */
         public void propertyChange(PropertyChangeEvent e) {
             String name = e.getPropertyName();
             Object oldValue = e.getOldValue();
             Object newValue = e.getNewValue();
 
                 // re-set listData listeners
             if (name.compareTo("model") == 0) {
 
                 if (oldValue != null && oldValue instanceof ListModel) {
                     ((ListModel) oldValue).removeListDataListener(this);
                 }
                 if (newValue != null && newValue instanceof ListModel) {
                     ((ListModel) newValue).addListDataListener(this);
                 }
 
                 // re-set listSelectionModel listeners
             } else if (name.compareTo("selectionModel") == 0) {
 
                 if (oldValue != null && oldValue instanceof ListSelectionModel) {
                     ((ListSelectionModel) oldValue).removeListSelectionListener(this);
                 }
                 if (newValue != null && newValue instanceof ListSelectionModel) {
                     ((ListSelectionModel) newValue).addListSelectionListener(this);
                 }
 
                 firePropertyChange(
                     AccessibleContext.ACCESSIBLE_SELECTION_PROPERTY,
                     Boolean.valueOf(false), Boolean.valueOf(true));
             }
         }
 
         /**
          * List Selection Listener value change method. Used to fire
          * the property change
          *
          * @param e ListSelectionEvent
          *
          */
         public void valueChanged(ListSelectionEvent e) {
             int oldLeadSelectionIndex = leadSelectionIndex;
             leadSelectionIndex = JList.this.getLeadSelectionIndex();
             if (oldLeadSelectionIndex != leadSelectionIndex) {
                 Accessible oldLS, newLS;
                 oldLS = (oldLeadSelectionIndex >= 0)
                         ? getAccessibleChild(oldLeadSelectionIndex)
                         : null;
                 newLS = (leadSelectionIndex >= 0)
                         ? getAccessibleChild(leadSelectionIndex)
                         : null;
                 firePropertyChange(AccessibleContext.ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY,
                                    oldLS, newLS);
             }
 
             firePropertyChange(AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
                                Boolean.valueOf(false), Boolean.valueOf(true));
             firePropertyChange(AccessibleContext.ACCESSIBLE_SELECTION_PROPERTY,
                                Boolean.valueOf(false), Boolean.valueOf(true));
 
             // Process the State changes for Multiselectable
             AccessibleStateSet s = getAccessibleStateSet();
             ListSelectionModel lsm = JList.this.getSelectionModel();
             if (lsm.getSelectionMode() != ListSelectionModel.SINGLE_SELECTION) {
                 if (!s.contains(AccessibleState.MULTISELECTABLE)) {
                     s.add(AccessibleState.MULTISELECTABLE);
                     firePropertyChange(AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
                                        null, AccessibleState.MULTISELECTABLE);
                 }
             } else {
                 if (s.contains(AccessibleState.MULTISELECTABLE)) {
                     s.remove(AccessibleState.MULTISELECTABLE);
                     firePropertyChange(AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
                                        AccessibleState.MULTISELECTABLE, null);
                 }
             }
         }
 
         /**
          * List Data Listener interval added method. Used to fire the visible data property change
          *
          * @param e ListDataEvent
          *
          */
         public void intervalAdded(ListDataEvent e) {
             firePropertyChange(AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
                                Boolean.valueOf(false), Boolean.valueOf(true));
         }
 
         /**
          * List Data Listener interval removed method. Used to fire the visible data property change
          *
          * @param e ListDataEvent
          *
          */
         public void intervalRemoved(ListDataEvent e) {
             firePropertyChange(AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
                                Boolean.valueOf(false), Boolean.valueOf(true));
         }
 
         /**
          * List Data Listener contents changed method. Used to fire the visible data property change
          *
          * @param e ListDataEvent
          *
          */
          public void contentsChanged(ListDataEvent e) {
              firePropertyChange(AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
                                 Boolean.valueOf(false), Boolean.valueOf(true));
          }
 
     // AccessibleContext methods
 
         /**
          * Get the state set of this object.
          *
          * @return an instance of AccessibleState containing the current state
          * of the object
          * @see AccessibleState
          */
         public AccessibleStateSet getAccessibleStateSet() {
             AccessibleStateSet states = super.getAccessibleStateSet();
             if (selectionModel.getSelectionMode() !=
                 ListSelectionModel.SINGLE_SELECTION) {
                 states.add(AccessibleState.MULTISELECTABLE);
             }
             return states;
         }
 
         /**
          * Get the role of this object.
          *
          * @return an instance of AccessibleRole describing the role of the
          * object
          * @see AccessibleRole
          */
         public AccessibleRole getAccessibleRole() {
             return AccessibleRole.LIST;
         }
 
         /**
          * Returns the <code>Accessible</code> child contained at
          * the local coordinate <code>Point</code>, if one exists.
          * Otherwise returns <code>null</code>.
          *
          * @return the <code>Accessible</code> at the specified
          *    location, if it exists
          */
         public Accessible getAccessibleAt(Point p) {
             int i = locationToIndex(p);
             if (i >= 0) {
                 return new AccessibleJListChild(JList.this, i);
             } else {
                 return null;
             }
         }
 
         /**
          * Returns the number of accessible children in the object.  If all
          * of the children of this object implement Accessible, than this
          * method should return the number of children of this object.
          *
          * @return the number of accessible children in the object.
          */
         public int getAccessibleChildrenCount() {
             return getModel().getSize();
         }
 
         /**
          * Return the nth Accessible child of the object.
          *
          * @param i zero-based index of child
          * @return the nth Accessible child of the object
          */
         public Accessible getAccessibleChild(int i) {
             if (i >= getModel().getSize()) {
                 return null;
             } else {
                 return new AccessibleJListChild(JList.this, i);
             }
         }
 
         /**
          * Get the AccessibleSelection associated with this object.  In the
          * implementation of the Java Accessibility API for this class,
          * return this object, which is responsible for implementing the
          * AccessibleSelection interface on behalf of itself.
          *
          * @return this object
          */
         public AccessibleSelection getAccessibleSelection() {
             return this;
         }
 
 
     // AccessibleSelection methods
 
         /**
          * Returns the number of items currently selected.
          * If no items are selected, the return value will be 0.
          *
          * @return the number of items currently selected.
          */
          public int getAccessibleSelectionCount() {
              return JList.this.getSelectedIndices().length;
          }
 
         /**
          * Returns an Accessible representing the specified selected item
          * in the object.  If there isn't a selection, or there are
          * fewer items selected than the integer passed in, the return
          * value will be <code>null</code>.
          *
          * @param i the zero-based index of selected items
          * @return an Accessible containing the selected item
          */
          public Accessible getAccessibleSelection(int i) {
              int len = getAccessibleSelectionCount();
              if (i < 0 || i >= len) {
                  return null;
              } else {
                  return getAccessibleChild(JList.this.getSelectedIndices()[i]);
              }
          }
 
         /**
          * Returns true if the current child of this object is selected.
          *
          * @param i the zero-based index of the child in this Accessible
          * object.
          * @see AccessibleContext#getAccessibleChild
          */
         public boolean isAccessibleChildSelected(int i) {
             return isSelectedIndex(i);
         }
 
         /**
          * Adds the specified selected item in the object to the object's
          * selection.  If the object supports multiple selections,
          * the specified item is added to any existing selection, otherwise
          * it replaces any existing selection in the object.  If the
          * specified item is already selected, this method has no effect.
          *
          * @param i the zero-based index of selectable items
          */
          public void addAccessibleSelection(int i) {
              JList.this.addSelectionInterval(i, i);
          }
 
         /**
          * Removes the specified selected item in the object from the object's
          * selection.  If the specified item isn't currently selected, this
          * method has no effect.
          *
          * @param i the zero-based index of selectable items
          */
          public void removeAccessibleSelection(int i) {
              JList.this.removeSelectionInterval(i, i);
          }
 
         /**
          * Clears the selection in the object, so that nothing in the
          * object is selected.
          */
          public void clearAccessibleSelection() {
              JList.this.clearSelection();
          }
 
         /**
          * Causes every selected item in the object to be selected
          * if the object supports multiple selections.
          */
          public void selectAllAccessibleSelection() {
              JList.this.addSelectionInterval(0, getAccessibleChildrenCount() -1);
          }
 
           /**
            * This class implements accessibility support appropriate
            * for list children.
            */
         protected class AccessibleJListChild extends AccessibleContext
                 implements Accessible, AccessibleComponent {
             private JList<E>     parent = null;
             private int       indexInParent;
             private Component component = null;
             private AccessibleContext accessibleContext = null;
             private ListModel<E> listModel;
             private ListCellRenderer<? super E> cellRenderer = null;
 
             public AccessibleJListChild(JList<E> parent, int indexInParent) {
                 this.parent = parent;
                 this.setAccessibleParent(parent);
                 this.indexInParent = indexInParent;
                 if (parent != null) {
                     listModel = parent.getModel();
                     cellRenderer = parent.getCellRenderer();
                 }
             }
 
             private Component getCurrentComponent() {
                 return getComponentAtIndex(indexInParent);
             }
 
             private AccessibleContext getCurrentAccessibleContext() {
                 Component c = getComponentAtIndex(indexInParent);
                 if (c instanceof Accessible) {
                     return c.getAccessibleContext();
                 } else {
                     return null;
                 }
             }
 
             private Component getComponentAtIndex(int index) {
                 if (index < 0 || index >= listModel.getSize()) {
                     return null;
                 }
                 if ((parent != null)
                         && (listModel != null)
                         && cellRenderer != null) {
                     E value = listModel.getElementAt(index);
                     boolean isSelected = parent.isSelectedIndex(index);
                     boolean isFocussed = parent.isFocusOwner()
                             && (index == parent.getLeadSelectionIndex());
                     return cellRenderer.getListCellRendererComponent(
                             parent,
                             value,
                             index,
                             isSelected,
                             isFocussed);
                 } else {
                     return null;
                 }
             }
 
 
             // Accessible Methods
            /**
             * Get the AccessibleContext for this object. In the
             * implementation of the Java Accessibility API for this class,
             * returns this object, which is its own AccessibleContext.
             *
             * @return this object
             */
             public AccessibleContext getAccessibleContext() {
                 return this;
             }
 
 
             // AccessibleContext methods
 
             public String getAccessibleName() {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac != null) {
                     return ac.getAccessibleName();
                 } else {
                     return null;
                 }
             }
 
             public void setAccessibleName(String s) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac != null) {
                     ac.setAccessibleName(s);
                 }
             }
 
             public String getAccessibleDescription() {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac != null) {
                     return ac.getAccessibleDescription();
                 } else {
                     return null;
                 }
             }
 
             public void setAccessibleDescription(String s) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac != null) {
                     ac.setAccessibleDescription(s);
                 }
             }
 
             public AccessibleRole getAccessibleRole() {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac != null) {
                     return ac.getAccessibleRole();
                 } else {
                     return null;
                 }
             }
 
             public AccessibleStateSet getAccessibleStateSet() {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 AccessibleStateSet s;
                 if (ac != null) {
                     s = ac.getAccessibleStateSet();
                 } else {
                     s = new AccessibleStateSet();
                 }
 
                 s.add(AccessibleState.SELECTABLE);
                 if (parent.isFocusOwner()
                     && (indexInParent == parent.getLeadSelectionIndex())) {
                     s.add(AccessibleState.ACTIVE);
                 }
                 if (parent.isSelectedIndex(indexInParent)) {
                     s.add(AccessibleState.SELECTED);
                 }
                 if (this.isShowing()) {
                     s.add(AccessibleState.SHOWING);
                 } else if (s.contains(AccessibleState.SHOWING)) {
                     s.remove(AccessibleState.SHOWING);
                 }
                 if (this.isVisible()) {
                     s.add(AccessibleState.VISIBLE);
                 } else if (s.contains(AccessibleState.VISIBLE)) {
                     s.remove(AccessibleState.VISIBLE);
                 }
                 s.add(AccessibleState.TRANSIENT); // cell-rendered
                 return s;
             }
 
             public int getAccessibleIndexInParent() {
                 return indexInParent;
             }
 
             public int getAccessibleChildrenCount() {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac != null) {
                     return ac.getAccessibleChildrenCount();
                 } else {
                     return 0;
                 }
             }
 
             public Accessible getAccessibleChild(int i) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac != null) {
                     Accessible accessibleChild = ac.getAccessibleChild(i);
                     ac.setAccessibleParent(this);
                     return accessibleChild;
                 } else {
                     return null;
                 }
             }
 
             public Locale getLocale() {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac != null) {
                     return ac.getLocale();
                 } else {
                     return null;
                 }
             }
 
             public void addPropertyChangeListener(PropertyChangeListener l) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac != null) {
                     ac.addPropertyChangeListener(l);
                 }
             }
 
             public void removePropertyChangeListener(PropertyChangeListener l) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac != null) {
                     ac.removePropertyChangeListener(l);
                 }
             }
 
             public AccessibleAction getAccessibleAction() {
                 return getCurrentAccessibleContext().getAccessibleAction();
             }
 
            /**
             * Get the AccessibleComponent associated with this object.  In the
             * implementation of the Java Accessibility API for this class,
             * return this object, which is responsible for implementing the
             * AccessibleComponent interface on behalf of itself.
             *
             * @return this object
             */
             public AccessibleComponent getAccessibleComponent() {
                 return this; // to override getBounds()
             }
 
             public AccessibleSelection getAccessibleSelection() {
                 return getCurrentAccessibleContext().getAccessibleSelection();
             }
 
             public AccessibleText getAccessibleText() {
                 return getCurrentAccessibleContext().getAccessibleText();
             }
 
             public AccessibleValue getAccessibleValue() {
                 return getCurrentAccessibleContext().getAccessibleValue();
             }
 
 
             // AccessibleComponent methods
 
             public Color getBackground() {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     return ((AccessibleComponent) ac).getBackground();
                 } else {
                     Component c = getCurrentComponent();
                     if (c != null) {
                         return c.getBackground();
                     } else {
                         return null;
                     }
                 }
             }
 
             public void setBackground(Color c) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     ((AccessibleComponent) ac).setBackground(c);
                 } else {
                     Component cp = getCurrentComponent();
                     if (cp != null) {
                         cp.setBackground(c);
                     }
                 }
             }
 
             public Color getForeground() {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     return ((AccessibleComponent) ac).getForeground();
                 } else {
                     Component c = getCurrentComponent();
                     if (c != null) {
                         return c.getForeground();
                     } else {
                         return null;
                     }
                 }
             }
 
             public void setForeground(Color c) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     ((AccessibleComponent) ac).setForeground(c);
                 } else {
                     Component cp = getCurrentComponent();
                     if (cp != null) {
                         cp.setForeground(c);
                     }
                 }
             }
 
             public Cursor getCursor() {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     return ((AccessibleComponent) ac).getCursor();
                 } else {
                     Component c = getCurrentComponent();
                     if (c != null) {
                         return c.getCursor();
                     } else {
                         Accessible ap = getAccessibleParent();
                         if (ap instanceof AccessibleComponent) {
                             return ((AccessibleComponent) ap).getCursor();
                         } else {
                             return null;
                         }
                     }
                 }
             }
 
             public void setCursor(Cursor c) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     ((AccessibleComponent) ac).setCursor(c);
                 } else {
                     Component cp = getCurrentComponent();
                     if (cp != null) {
                         cp.setCursor(c);
                     }
                 }
             }
 
             public Font getFont() {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     return ((AccessibleComponent) ac).getFont();
                 } else {
                     Component c = getCurrentComponent();
                     if (c != null) {
                         return c.getFont();
                     } else {
                         return null;
                     }
                 }
             }
 
             public void setFont(Font f) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     ((AccessibleComponent) ac).setFont(f);
                 } else {
                     Component c = getCurrentComponent();
                     if (c != null) {
                         c.setFont(f);
                     }
                 }
             }
 
             public FontMetrics getFontMetrics(Font f) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     return ((AccessibleComponent) ac).getFontMetrics(f);
                 } else {
                     Component c = getCurrentComponent();
                     if (c != null) {
                         return c.getFontMetrics(f);
                     } else {
                         return null;
                     }
                 }
             }
 
             public boolean isEnabled() {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     return ((AccessibleComponent) ac).isEnabled();
                 } else {
                     Component c = getCurrentComponent();
                     if (c != null) {
                         return c.isEnabled();
                     } else {
                         return false;
                     }
                 }
             }
 
             public void setEnabled(boolean b) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     ((AccessibleComponent) ac).setEnabled(b);
                 } else {
                     Component c = getCurrentComponent();
                     if (c != null) {
                         c.setEnabled(b);
                     }
                 }
             }
 
             public boolean isVisible() {
                 int fi = parent.getFirstVisibleIndex();
                 int li = parent.getLastVisibleIndex();
                 // The UI incorrectly returns a -1 for the last
                 // visible index if the list is smaller than the
                 // viewport size.
                 if (li == -1) {
                     li = parent.getModel().getSize() - 1;
                 }
                 return ((indexInParent >= fi)
                         && (indexInParent <= li));
             }
 
             public void setVisible(boolean b) {
             }
 
             public boolean isShowing() {
                 return (parent.isShowing() && isVisible());
             }
 
             public boolean contains(Point p) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     Rectangle r = ((AccessibleComponent) ac).getBounds();
                     return r.contains(p);
                 } else {
                     Component c = getCurrentComponent();
                     if (c != null) {
                         Rectangle r = c.getBounds();
                         return r.contains(p);
                     } else {
                         return getBounds().contains(p);
                     }
                 }
             }
 
             public Point getLocationOnScreen() {
                 if (parent != null) {
                     Point listLocation = parent.getLocationOnScreen();
                     Point componentLocation = parent.indexToLocation(indexInParent);
                     if (componentLocation != null) {
                         componentLocation.translate(listLocation.x, listLocation.y);
                         return componentLocation;
                     } else {
                         return null;
                     }
                 } else {
                     return null;
                 }
             }
 
             public Point getLocation() {
                 if (parent != null) {
                     return parent.indexToLocation(indexInParent);
                 } else {
                     return null;
                 }
             }
 
             public void setLocation(Point p) {
                 if ((parent != null)  && (parent.contains(p))) {
                     ensureIndexIsVisible(indexInParent);
                 }
             }
 
             public Rectangle getBounds() {
                 if (parent != null) {
                     return parent.getCellBounds(indexInParent,indexInParent);
                 } else {
                     return null;
                 }
             }
 
             public void setBounds(Rectangle r) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     ((AccessibleComponent) ac).setBounds(r);
                 }
             }
 
             public Dimension getSize() {
                 Rectangle cellBounds = this.getBounds();
                 if (cellBounds != null) {
                     return cellBounds.getSize();
                 } else {
                     return null;
                 }
             }
 
             public void setSize (Dimension d) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     ((AccessibleComponent) ac).setSize(d);
                 } else {
                     Component c = getCurrentComponent();
                     if (c != null) {
                         c.setSize(d);
                     }
                 }
             }
 
             public Accessible getAccessibleAt(Point p) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     return ((AccessibleComponent) ac).getAccessibleAt(p);
                 } else {
                     return null;
                 }
             }
 
             public boolean isFocusTraversable() {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     return ((AccessibleComponent) ac).isFocusTraversable();
                 } else {
                     Component c = getCurrentComponent();
                     if (c != null) {
                         return c.isFocusTraversable();
                     } else {
                         return false;
                     }
                 }
             }
 
             public void requestFocus() {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     ((AccessibleComponent) ac).requestFocus();
                 } else {
                     Component c = getCurrentComponent();
                     if (c != null) {
                         c.requestFocus();
                     }
                 }
             }
 
             public void addFocusListener(FocusListener l) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     ((AccessibleComponent) ac).addFocusListener(l);
                 } else {
                     Component c = getCurrentComponent();
                     if (c != null) {
                         c.addFocusListener(l);
                     }
                 }
             }
 
             public void removeFocusListener(FocusListener l) {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac instanceof AccessibleComponent) {
                     ((AccessibleComponent) ac).removeFocusListener(l);
                 } else {
                     Component c = getCurrentComponent();
                     if (c != null) {
                         c.removeFocusListener(l);
                     }
                 }
             }
 
             // TIGER - 4733624
             /**
              * Returns the icon for the element renderer, as the only item
              * of an array of <code>AccessibleIcon</code>s or a <code>null</code> array
              * if the renderer component contains no icons.
              *
              * @return an array containing the accessible icon
              *         or a <code>null</code> array if none
              * @since 1.3
              */
             public AccessibleIcon [] getAccessibleIcon() {
                 AccessibleContext ac = getCurrentAccessibleContext();
                 if (ac != null) {
                     return ac.getAccessibleIcon();
                 } else {
                     return null;
                 }
             }
         } // inner class AccessibleJListChild
     } // inner class AccessibleJList
 }