| /* |
| * Copyright (c) 2010, 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @key headful |
| * @bug 6938813 |
| * @summary Swing mutable statics |
| * @author Pavel Porvatov |
| * @modules java.desktop/javax.swing.text.html.parser:open |
| * @modules java.desktop/sun.awt |
| */ |
| |
| import sun.awt.AppContext; |
| import sun.awt.SunToolkit; |
| |
| import javax.swing.text.html.HTMLEditorKit; |
| import javax.swing.text.html.StyleSheet; |
| import javax.swing.text.html.parser.DTD; |
| import javax.swing.text.html.parser.ParserDelegator; |
| import java.lang.reflect.Field; |
| |
| public class bug6938813 { |
| public static final String DTD_KEY = "dtd_key"; |
| |
| private static volatile StyleSheet styleSheet; |
| |
| public static void main(String[] args) throws Exception { |
| // Run validation and init values for this AppContext |
| validate(); |
| |
| Thread thread = new ThreadInAnotherAppContext(); |
| |
| thread.start(); |
| thread.join(); |
| } |
| |
| private static void validate() throws Exception { |
| AppContext appContext = AppContext.getAppContext(); |
| |
| assertTrue(DTD.getDTD(DTD_KEY).getName().equals(DTD_KEY), "DTD.getDTD() mixed AppContexts"); |
| |
| // Spoil hash value |
| DTD invalidDtd = DTD.getDTD("invalid DTD"); |
| |
| DTD.putDTDHash(DTD_KEY, invalidDtd); |
| |
| assertTrue(DTD.getDTD(DTD_KEY) == invalidDtd, "Something wrong with DTD.getDTD()"); |
| |
| Object dtdKey = getParserDelegator_DTD_KEY(); |
| |
| assertTrue(appContext.get(dtdKey) == null, "ParserDelegator mixed AppContexts"); |
| |
| // Init default DTD |
| new ParserDelegator(); |
| |
| Object dtdValue = appContext.get(dtdKey); |
| |
| assertTrue(dtdValue != null, "ParserDelegator.defaultDTD isn't initialized"); |
| |
| // Try reinit default DTD |
| new ParserDelegator(); |
| |
| assertTrue(dtdValue == appContext.get(dtdKey), "ParserDelegator.defaultDTD created a duplicate"); |
| |
| HTMLEditorKit htmlEditorKit = new HTMLEditorKit(); |
| |
| if (styleSheet == null) { |
| // First AppContext |
| styleSheet = htmlEditorKit.getStyleSheet(); |
| |
| assertTrue(styleSheet != null, "htmlEditorKit.getStyleSheet() returns null"); |
| assertTrue(htmlEditorKit.getStyleSheet() == styleSheet, "Something wrong with htmlEditorKit.getStyleSheet()"); |
| } else { |
| assertTrue(htmlEditorKit.getStyleSheet() != styleSheet, "HtmlEditorKit.getStyleSheet() mixed AppContexts"); |
| } |
| } |
| |
| private static void assertTrue(boolean b, String msg) { |
| if (!b) { |
| throw new RuntimeException("Test failed: " + msg); |
| } |
| } |
| |
| private static Object getParserDelegator_DTD_KEY() throws Exception { |
| Field field = ParserDelegator.class.getDeclaredField("DTD_KEY"); |
| |
| field.setAccessible(true); |
| |
| return field.get(null); |
| } |
| |
| private static class ThreadInAnotherAppContext extends Thread { |
| public ThreadInAnotherAppContext() { |
| super(new ThreadGroup("6938813"), "ThreadInAnotherAppContext"); |
| } |
| |
| public void run() { |
| SunToolkit.createNewAppContext(); |
| |
| try { |
| validate(); |
| } catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |
| } |