1 /* 2 * Copyright (c) 2011, 2014, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 /* 24 * @test 25 * @key headful 26 * @bug 6510999 27 * @summary Selection in a JList with both scrollbars visible jumps on arrowkey-down 28 * @author Alexander Potochkin 29 * @run main bug6510999 30 */ 31 32 import javax.swing.*; 33 import java.awt.*; 34 import java.awt.event.KeyEvent; 35 36 public class bug6510999 { 37 private static JScrollPane s; 38 static JFrame frame; 39 createGui()40 private static void createGui() { 41 frame = new JFrame(); 42 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 43 44 DefaultListModel dlm = new DefaultListModel(); 45 for (int i = 0; i < 100; i++) 46 dlm 47 .addElement(i + " listItemlistItemlistItemlistItemItem"); 48 JList l = new JList(); 49 l.setModel(dlm); 50 s = new JScrollPane(l); 51 l.setSelectedIndex(50); 52 l.ensureIndexIsVisible(50); 53 54 frame.add(s); 55 frame.setSize(200, 200); 56 frame.setLocationRelativeTo(null); 57 frame.setVisible(true); 58 } 59 main(String[] args)60 public static void main(String[] args) throws Exception { 61 try { 62 Robot robot = new Robot(); 63 robot.setAutoDelay(10); 64 SwingUtilities.invokeAndWait(new Runnable() { 65 public void run() { 66 bug6510999.createGui(); 67 } 68 }); 69 robot.waitForIdle(); 70 Point viewPosition = s.getViewport().getViewPosition(); 71 robot.keyPress(KeyEvent.VK_DOWN); 72 robot.keyRelease(KeyEvent.VK_DOWN); 73 robot.waitForIdle(); 74 if (!s.getViewport().getViewPosition().equals(viewPosition)) { 75 throw new RuntimeException("JScrollPane was unexpectedly scrolled"); 76 } 77 } finally { 78 if (frame != null) SwingUtilities.invokeAndWait(() -> frame.dispose()); 79 } 80 } 81 } 82