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 JTree.updateUI() invokes updateUI() on its TreeCellrenderer via 30 * SwingUtilities.updateRendererOrEditorUI(). 31 * If the TreeCellrenderer is a parent of this JTree, 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.JFrame; 41 import javax.swing.JScrollPane; 42 import javax.swing.JTree; 43 import javax.swing.SwingUtilities; 44 import javax.swing.tree.TreeCellRenderer; 45 import javax.swing.tree.DefaultTreeCellRenderer; 46 47 public class UpdateUIRecursionTest extends JFrame implements TreeCellRenderer { 48 JTree tree; 49 DefaultTreeCellRenderer 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 tree = new JTree(listData); 61 renderer = new DefaultTreeCellRenderer(); 62 getContentPane().add(new JScrollPane(tree), BorderLayout.CENTER); 63 tree.setCellRenderer(this); 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 tree.updateUI(); 85 } 86 87 public void disposeUI() { 88 setVisible(false); 89 dispose(); 90 } 91 92 @Override 93 public Component getTreeCellRendererComponent(JTree tree, Object value, 94 boolean selected, boolean expanded, boolean leaf, 95 int row, boolean hasFocus) 96 { 97 return renderer.getTreeCellRendererComponent(tree, value, leaf, 98 expanded, leaf, row, hasFocus); 99 } 100 }