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