    rev 48858 : Work in progress for JDK-6303622
    Use generic in Swing components like JComboBox
    1. Added generic return type and parameter type for JComboBox.
    2. Modified JList related classes as well.
    3. Reverted the changes made to "getSelectedValues" as suggested by Joe.
    4. Modified files that were failing on Linux and Mac as well.

       1 /*
       2  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
       3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
       4  *
       5  * This code is free software; you can redistribute it and/or modify it
       6  * under the terms of the GNU General Public License version 2 only, as
       7  * published by the Free Software Foundation.  Oracle designates this
       8  * particular file as subject to the "Classpath" exception as provided
       9  * by Oracle in the LICENSE file that accompanied this code.
      10  *
      11  * This code is distributed in the hope that it will be useful, but WITHOUT
      12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
      13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      14  * version 2 for more details (a copy is included in the LICENSE file that
      15  * accompanied this code).
      16  *
      17  * You should have received a copy of the GNU General Public License version
      18  * 2 along with this work; if not, write to the Free Software Foundation,
      19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
      20  *
      21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
      22  * or visit www.oracle.com if you need additional information or have any
      23  * questions.
      24  */
      25 package javax.swing;
      26
      27 /**
      28  * A data model for a combo box. This interface extends <code>ListDataModel</code>
      29  * and adds the concept of a <i>selected item</i>. The selected item is generally
      30  * the item which is visible in the combo box display area.
      31  * <p>
      32  * The selected item may not necessarily be managed by the underlying
      33  * <code>ListModel</code>. This disjoint behavior allows for the temporary
      34  * storage and retrieval of a selected item in the model.
      35  *
      36  * @param <E> the type of the elements of this model
      37  *
      38  * @author Arnaud Weber
      39  * @since 1.2
      40  */
      41 public interface ComboBoxModel<E> extends ListModel<E> {
      42
      43   /**
      44    * Set the selected item. The implementation of this  method should notify
      45    * all registered <code>ListDataListener</code>s that the contents
      46    * have changed.
      47    *
      48    * @param <E> the type of the elements of this model.
      49    * @param anItem the list object to select or <code>null</code>
      50    *        to clear the selection
      51    */
      52   void setSelectedItem(E anItem);
      53
      54   /**
      55    * Returns the selected item
      56    * @param <E> the type of the elements of this model.
      57    * @return The selected item or <code>null</code> if there is no selection
      58    */
      59   E getSelectedItem();
      60 }
    --- EOF ---