/*

 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 * questions.

 */

/*

 * @test

 * @key headful

 * @bug 7108280

 * @summary Verifies that getSelectedValue works fine without crash when

 *          the setSelectionInterval was called with indices outside the

 *          range of data present in DataModel

 * @run main GetSelectedValueTest

 */

import javax.swing.SwingUtilities;

import javax.swing.DefaultListModel;

import javax.swing.JList;

import javax.swing.ListSelectionModel;

import java.util.Objects;

public class GetSelectedValueTest {

    public static void main(String[] args) throws Exception {

        SwingUtilities.invokeAndWait(new Runnable() {

            public void run() {

                // Create a JList with 2 elements

                DefaultListModel dlm = new DefaultListModel();

                JList list = new JList<String>(dlm);

                list.setSelectionMode(

                        ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);

                dlm.addElement("1");

                dlm.addElement("2");

                // Set the selection interval from 0-2 (3 elements instead

                // of 2). The getSelectedValue should return the first

                // selected element

                list.setSelectionInterval(0, 2);

                checkSelectedIndex(list, "1");

                //here the smallest selection index is bigger than number of

                // elements in list. This should return null.

                list.setSelectionInterval(4, 5);

                checkSelectedIndex(list,null);

            }

        });

    }

    static void checkSelectedIndex(JList list, Object value)

            throws RuntimeException {

        Object selectedObject = list.getSelectedValue();

        if (!Objects.equals(value, selectedObject)) {

            System.out.println("Expected: " + value);

            System.out.println("Actual: " + selectedObject);

            throw new RuntimeException("Wrong selection");

        }

    }

}