| /* |
| * Copyright (c) 2001, 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 |
| * @bug 4421190 |
| * @summary Tests that Image I/O statics may be referenced properly from |
| * multiple AppContexts, as would be the case for multiple Applets in a |
| * single VM. Each AppContext should get its own copy of the registry |
| * and the caching parameters in the ImageIO class. |
| * @modules java.desktop/sun.awt |
| */ |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| import javax.imageio.ImageIO; |
| import javax.imageio.spi.IIORegistry; |
| |
| import sun.awt.SunToolkit; |
| |
| class TestThread extends Thread { |
| |
| IIORegistry registry; |
| boolean useCache; |
| File cacheDirectory; |
| boolean cacheSettingsOK = false; |
| String threadName; |
| |
| boolean gotCrosstalk = false; |
| |
| public TestThread(ThreadGroup tg, |
| boolean useCache, File cacheDirectory, |
| String threadName) { |
| super(tg, threadName); |
| this.useCache = useCache; |
| this.cacheDirectory = cacheDirectory; |
| this.threadName = threadName; |
| } |
| |
| public void run() { |
| // System.out.println("Thread " + threadName + " in thread group " + |
| // getThreadGroup().getName()); |
| |
| // Create a new AppContext as though we were an applet |
| SunToolkit.createNewAppContext(); |
| |
| // Get default registry and store reference |
| this.registry = IIORegistry.getDefaultInstance(); |
| |
| for (int i = 0; i < 10; i++) { |
| // System.out.println(threadName + |
| // ": setting cache parameters to " + |
| // useCache + ", " + cacheDirectory); |
| ImageIO.setUseCache(useCache); |
| ImageIO.setCacheDirectory(cacheDirectory); |
| |
| try { |
| sleep(1000L); |
| } catch (InterruptedException e) { |
| } |
| |
| // System.out.println(threadName + ": reading cache parameters"); |
| boolean newUseCache = ImageIO.getUseCache(); |
| File newCacheDirectory = ImageIO.getCacheDirectory(); |
| if (newUseCache != useCache || |
| newCacheDirectory != cacheDirectory) { |
| // System.out.println(threadName + ": got " + |
| // newUseCache + ", " + |
| // newCacheDirectory); |
| // System.out.println(threadName + ": crosstalk encountered!"); |
| gotCrosstalk = true; |
| } |
| } |
| } |
| |
| public IIORegistry getRegistry() { |
| return registry; |
| } |
| |
| public boolean gotCrosstalk() { |
| return gotCrosstalk; |
| } |
| } |
| |
| public class AppContextTest { |
| |
| public AppContextTest() { |
| ThreadGroup tg0 = new ThreadGroup("ThreadGroup0"); |
| ThreadGroup tg1 = new ThreadGroup("ThreadGroup1"); |
| |
| TestThread t0 = |
| new TestThread(tg0, false, null, "TestThread 0"); |
| TestThread t1 = |
| new TestThread(tg1, true, new File("."), "TestThread 1"); |
| |
| t0.start(); |
| t1.start(); |
| |
| try { |
| t0.join(); |
| } catch (InterruptedException ie0) { |
| } |
| try { |
| t1.join(); |
| } catch (InterruptedException ie1) { |
| } |
| |
| if (t0.gotCrosstalk() || t1.gotCrosstalk()) { |
| throw new RuntimeException("ImageIO methods had crosstalk!"); |
| } |
| |
| if (t0.getRegistry() == t1.getRegistry()) { |
| throw new RuntimeException("ThreadGroups had same IIORegistry!"); |
| } |
| } |
| |
| public static void main(String[] args) throws IOException { |
| new AppContextTest(); |
| } |
| } |