1 /*
   2  * Copyright (c) 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 /*
  25  * @test
  26  * @key headful
  27  * @bug 8048110
  28  * @summary Using tables in JTextPane leads to infinite loop in FlowLayout.layoutRow
  29  * @author Dmitry Markov
  30  * @run main bug8048110
  31  */
  32 
  33 import sun.awt.SunToolkit;
  34 
  35 import javax.swing.*;
  36 import javax.swing.text.Element;
  37 import javax.swing.text.html.HTMLDocument;
  38 import javax.swing.text.html.HTMLEditorKit;
  39 import java.awt.*;
  40 
  41 public class bug8048110 {
  42     private static SunToolkit toolkit = (SunToolkit)Toolkit.getDefaultToolkit();
  43     private static Object lock = new Object();
  44     private static boolean isRealSyncPerformed = false;
  45     private static final String htmlText = "<table width=\"100%\" cellpadding=\"10\" cellspacing=\"5\" align=\"center\">" +
  46             "<tr><th align=\"left\" bgcolor=\"#bec3c6\">Devices</th><th align=\"left\" bgcolor=\"#bec3c6\">State</th></tr>" +
  47             "<tr><td align=\"left\" bgcolor=\"#bec3c6\">PC</td><td align=\"left\" bgcolor=\"#46a055\">Ok</td></tr></table>";
  48 
  49     public static void main(String[] args) throws Exception {
  50         SwingUtilities.invokeAndWait(new Runnable() {
  51             @Override
  52             public void run() {
  53                 createAndShowGUI();
  54             }
  55         });
  56 
  57         Thread thread = new Thread() {
  58             @Override
  59             public void run() {
  60                 toolkit.realSync();
  61                 synchronized (lock) {
  62                     isRealSyncPerformed = true;
  63                     lock.notifyAll();
  64                 }
  65             }
  66         };
  67         thread.start();
  68 
  69         synchronized (lock) {
  70             if (!isRealSyncPerformed) {
  71                 lock.wait(5000);
  72             }
  73         }
  74 
  75         if (!isRealSyncPerformed) {
  76             throw new RuntimeException("Test Failed!");
  77         }
  78     }
  79 
  80     private static void createAndShowGUI() {
  81         try {
  82             UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
  83         } catch (Exception ex) {
  84             throw new RuntimeException(ex);
  85         }
  86         HTMLEditorKit editorKit = new HTMLEditorKit();
  87         JTextPane textPane = new JTextPane();
  88         textPane.setContentType("text/html");
  89         textPane.setEditorKit(editorKit);
  90         textPane.setText("Initial text without table");
  91 
  92         JFrame frame = new JFrame("bug8048110");
  93         frame.getContentPane().add(textPane, BorderLayout.CENTER);
  94         frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
  95         frame.setSize(500, 200);
  96         frame.setVisible(true);
  97 
  98         textPane.setDocument(textPane.getEditorKit().createDefaultDocument());
  99         HTMLDocument htmlDocument = (HTMLDocument) textPane.getDocument();
 100         Element firstParagraph = findFirstElement(textPane.getDocument().getDefaultRootElement(), "p");
 101 
 102         try {
 103             htmlDocument.setInnerHTML(firstParagraph, htmlText);
 104         } catch (Exception ex) {
 105             throw new RuntimeException(ex);
 106         }
 107     }
 108 
 109     private static Element findFirstElement(Element e, String name) {
 110         String elementName = e.getName();
 111         if (elementName != null && elementName.equalsIgnoreCase(name)) {
 112             return e;
 113         }
 114         for (int i = 0; i < e.getElementCount(); i++) {
 115             Element result = findFirstElement(e.getElement(i), name);
 116             if (result != null) {
 117                 return result;
 118             }
 119         }
 120         return null;
 121     }
 122 }
 123