1 /* 2 * Copyright (c) 2016, 2017, 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 /** 25 * @test 26 * @key headful 27 * @bug 6567433 28 * 29 * @summary JList.updateUI() for invokes updateUI() on its cellrenderer via 30 * SwingUtilities.updateComponentTreeUI(). 31 * If the cellrenderer is a parent of this JList the method recurses 32 * endless. 33 * This test tests that the fix is effective in avoiding recursion. 34 * 35 * @run main/othervm UpdateUIRecursionTest 36 */ 37 38 import java.awt.BorderLayout; 39 import java.awt.Component; 40 import javax.swing.DefaultListCellRenderer; 41 import javax.swing.JFrame; 42 import javax.swing.JList; 43 import javax.swing.JScrollPane; 44 import javax.swing.ListCellRenderer; 45 import javax.swing.SwingUtilities; 46 47 public class UpdateUIRecursionTest extends JFrame implements ListCellRenderer { 48 JList list; 49 DefaultListCellRenderer renderer; 50 51 public UpdateUIRecursionTest() { 52 super("UpdateUIRecursionTest"); 53 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 54 setSize(400, 400); 55 56 String[] listData = { 57 "First", "Second", "Third", "Fourth", "Fifth", "Sixth" 58 }; 59 60 list = new JList(listData); 61 list.setCellRenderer(this); 62 renderer = new DefaultListCellRenderer(); 63 getContentPane().add(new JScrollPane(list), BorderLayout.CENTER); 64 65 setVisible(true); 66 } 67 68 public static void main(String[] args) throws Exception { 69 70 SwingUtilities.invokeAndWait(new Runnable() { 71 72 @Override 73 public void run() { 74 UpdateUIRecursionTest obj = new UpdateUIRecursionTest(); 75 76 obj.test(); 77 78 obj.disposeUI(); 79 } 80 }); 81 } 82 83 public void test() { 84 list.updateUI(); 85 } 86 87 public void disposeUI() { 88 setVisible(false); 89 dispose(); 90 } 91 92 public Component getListCellRendererComponent(JList list, Object value, 93 int index, boolean isSelected, boolean cellHasFocus) 94 { 95 return renderer.getListCellRendererComponent(list, value, index, 96 isSelected, cellHasFocus); 97 } 98 } 99