Java example source code file (bug6823603.java)

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Java - Java tags/keywords

abstractlistmodel, awt, defaultlistcellrenderer, defaultlistmodel, expected, gui, jlist, not, object, string, suppresswarnings, swing, test1, test2, test_element, unsupportedoperationexception, util, vector

The bug6823603.java Java example source code

/*
 * Copyright (c) 2009, 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
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/* @test
   @bug 6823603
   @summary Generics: JList
   @author Florian Brunner
   @run main bug6823603
 */

import java.util.Arrays;
import java.util.List;
import java.util.Vector;
import java.util.Enumeration;
import java.awt.*;
import javax.swing.*;

public class bug6823603 {

    private static final String TEST_ELEMENT = "Test1";

    /**
     * @param args the command line arguments
     */
    @SuppressWarnings("unchecked")
    public static void main(String[] args) {
        testRawSignatures();
        testGenericSignatures();

        testGetSelectedValuesList(); // new method
    }

    @SuppressWarnings("unchecked")
    private static void testRawSignatures() {
        // Test JList
        ListModel rawTestModel = new DefaultListModel();

        new JList();
        new JList(rawTestModel);
        new JList(new Object[]{TEST_ELEMENT});
        JList rawTestList = new JList(new Vector());
        rawTestList.getPrototypeCellValue();
        rawTestList.setPrototypeCellValue(TEST_ELEMENT);
        rawTestList.getCellRenderer();
        rawTestList.setCellRenderer(new DefaultListCellRenderer());
        rawTestList.getModel();
        rawTestList.setModel(rawTestModel);
        rawTestList.setListData(new Object[]{TEST_ELEMENT});
        rawTestList.setListData(new Vector());

        @SuppressWarnings("deprecation")
        Object[] selectedValues = rawTestList.getSelectedValues();
        rawTestList.getSelectedValue();

        // Test ListCellRenderer
        ListCellRenderer rawTestCellRenderer = new DefaultListCellRenderer();
        String testEntry = "Test";
        @SuppressWarnings("unchecked")
        JList rawJList = new JList(new Object[]{testEntry});

        rawTestCellRenderer.getListCellRendererComponent(rawJList,
                testEntry, 0, true, true);

        // Test ListModel
        DefaultListModel testModel = new DefaultListModel();
        testModel.addElement(TEST_ELEMENT);
        rawTestModel = testModel;
        rawTestModel.getElementAt(0);

        // Test DefaultListModel
        DefaultListModel defaultListModel = new DefaultListModel();

        defaultListModel.addElement(TEST_ELEMENT);
        defaultListModel.getElementAt(0);
        defaultListModel.elements();
        defaultListModel.elementAt(0);
        defaultListModel.firstElement();
        defaultListModel.lastElement();

        String testElement2 = "Test2";

        defaultListModel.setElementAt(testElement2, 0);
        defaultListModel.insertElementAt(TEST_ELEMENT, 0);
        defaultListModel.get(0);
        defaultListModel.set(0, testElement2);
        defaultListModel.add(0, TEST_ELEMENT);
        defaultListModel.remove(0);

        // Test AbstractListModel
        @SuppressWarnings("serial")
        ListModel abstractListModel = new AbstractListModel() {
            public int getSize() {
                throw new UnsupportedOperationException("Not supported yet.");
            }

            public Object getElementAt(int index) {
                throw new UnsupportedOperationException("Not supported yet.");
            }
        };

        // Test DefaultListCellRenderer
        DefaultListCellRenderer cellRenderer = new DefaultListCellRenderer();

        @SuppressWarnings("unchecked")
        JList list = new JList(new Object[]{testEntry});

        cellRenderer.getListCellRendererComponent(rawJList, testEntry, 0, true, true);
    }

    private static <E> void testGenericSignatures() {
        // Test JList
        ListModel<String> stringListModel = new DefaultListModel();

        new JList<String>();
        new JList<String>(stringListModel);
        new JList<String>(new String[]{TEST_ELEMENT});

        JList<String> stringTestList = new JList(new Vector());

        stringTestList.getPrototypeCellValue();
        stringTestList.setPrototypeCellValue(TEST_ELEMENT);

        ListCellRenderer<? super String> cellRenderer = stringTestList.getCellRenderer();

        stringTestList.setCellRenderer(new DefaultListCellRenderer());

        ListModel<String> model = stringTestList.getModel();

        stringTestList.setModel(stringListModel);
        stringTestList.setListData(new String[]{TEST_ELEMENT});
        stringTestList.setListData(new Vector<String>());

        @SuppressWarnings("deprecation")
        Object[] selectedValues = stringTestList.getSelectedValues();

        stringTestList.getSelectedValue();

        // Test ListCellRenderer
        ListCellRenderer<Object> stringTestCellRenderer =
                new DefaultListCellRenderer();
        String testEntry = "Test";
        JList<String> stringJList = new JList(new String[]{testEntry});

        Component listCellRendererComponent2 =
                stringTestCellRenderer.getListCellRendererComponent(stringJList,
                testEntry, 0, true, true);

        // Test ListModel
        DefaultListModel<String> testModel = new DefaultListModel();
        testModel.addElement(TEST_ELEMENT);
        stringListModel = testModel;

        String element1 = stringListModel.getElementAt(0);

        // Test DefaultListModel
        DefaultListModel<String> stringTestModel = new DefaultListModel();

        stringTestModel.addElement(TEST_ELEMENT);
        element1 = stringTestModel.getElementAt(0);
        Enumeration<String> elements = stringTestModel.elements();
        String element2 = stringTestModel.elementAt(0);
        String firstElement = stringTestModel.firstElement();
        String lastElement = stringTestModel.lastElement();

        String testElement2 = "Test2";
        stringTestModel.setElementAt(testElement2, 0);
        stringTestModel.insertElementAt(TEST_ELEMENT, 0);
        String element3 = stringTestModel.get(0);
        String element4 = stringTestModel.set(0, testElement2);
        stringTestModel.add(0, TEST_ELEMENT);
        String removedElement = stringTestModel.remove(0);

        // Test AbstractListModel
        stringListModel = new AbstractListModel<String>() {

            public int getSize() {
                throw new UnsupportedOperationException("Not supported yet.");
            }

            public String getElementAt(int index) {
                throw new UnsupportedOperationException("Not supported yet.");
            }
        };

        @SuppressWarnings("serial")
        ListModel<E> genericTestModel = new AbstractListModel() {

            public int getSize() {
                throw new UnsupportedOperationException("Not supported yet.");
            }

            public E getElementAt(int index) {
                throw new UnsupportedOperationException("Not supported yet.");
            }
        };

        // Test DefaultListCellRenderer
        cellRenderer = new DefaultListCellRenderer();

        stringJList = new JList<String>(new String[]{testEntry});

        listCellRendererComponent2 = cellRenderer.getListCellRendererComponent(stringJList, testEntry, 0, true, true);
    }

    private static void testGetSelectedValuesList() {
        Vector<Integer> data = new Vector();
        for (int i = 0; i < 10; i++) {
            data.add(i);
        }
        JList<Integer> list = new JList(data);
        list.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
        list.setSelectedIndices(new int[]{1, 2, 3, 5, 6, 8});

        @SuppressWarnings("deprecation")
        Object[] expectedSelectedValues = list.getSelectedValues();
        List<Integer> selectedValuesList = list.getSelectedValuesList();
        assertEquals(expectedSelectedValues, selectedValuesList.toArray());
    }

    private static void assertEquals(Object[] expectedArray,
            Object[] actualArray) {
        if (!Arrays.equals(expectedArray, actualArray)) {
            throw new RuntimeException("Expected: " + Arrays.toString(
                    expectedArray) + " but was: " + Arrays.toString(actualArray));
        }
    }
}