| /* |
| * Copyright (c) 2007, 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 1.3 99/02/15 |
| @summary test Resource Bundle for bug 4179766 |
| @build Bug4179766Class Bug4179766Resource Bug4179766Getter |
| @run main TestBug4179766 |
| @bug 4179766 |
| */ |
| /* |
| * |
| * |
| * (C) Copyright IBM Corp. 1996 - 1999 - All Rights Reserved |
| * |
| * Portions copyright (c) 2007 Sun Microsystems, Inc. |
| * All Rights Reserved. |
| * |
| * The original version of this source code and documentation |
| * is copyrighted and owned by Taligent, Inc., a wholly-owned |
| * subsidiary of IBM. These materials are provided under terms |
| * of a License Agreement between Taligent and Sun. This technology |
| * is protected by multiple US and International patents. |
| * |
| * This notice and attribution to Taligent may not be removed. |
| * Taligent is a registered trademark of Taligent, Inc. |
| * |
| * Permission to use, copy, modify, and distribute this software |
| * and its documentation for NON-COMMERCIAL purposes and without |
| * fee is hereby granted provided that this copyright notice |
| * appears in all copies. Please refer to the file "copyright.html" |
| * for further important copyright and licensing information. |
| * |
| * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF |
| * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED |
| * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A |
| * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR |
| * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR |
| * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. |
| * |
| */ |
| |
| import java.util.Hashtable; |
| import java.util.ResourceBundle; |
| import java.util.MissingResourceException; |
| import java.util.Hashtable; |
| import java.io.File; |
| import java.io.FileInputStream; |
| |
| /** |
| * This class tests the behavior of the ResourceBundle cache with |
| * respect to ClassLoaders. The same resource loaded by different |
| * loaders should be cached as separate objects, one for each loader. |
| * In order to test this behavior, this test constructs a custom |
| * class loader to load its resources. It does not delegate resource |
| * loading to the system loader to load the class files, but loads |
| * them from the current directory instead. This is so that the |
| * defining class loader for the resources is different. If it |
| * delegated to the system loader to load the resources, the |
| * defining ClassLoader would be the same even though the initiating |
| * loader differered, and the resource would only be cached once. |
| */ |
| public class TestBug4179766 extends RBTestFmwk { |
| //hash code used by class loaders when sameHash is true |
| private static final int SAME_HASH_CODE = 0; |
| //the next unique hash code |
| private static int nextHashCode = SAME_HASH_CODE + 1; |
| //suffix on class files |
| private static final String CLASS_SUFFIX = ".class"; |
| |
| //generate a unique hashcode for a class loader |
| private static synchronized int getNextHashCode() { |
| return nextHashCode++; |
| } |
| |
| public static void main(String[] args) throws Exception { |
| //static links so all needed classes get compiled |
| Object o1 = new Bug4179766Class(); |
| Object o2 = new Bug4179766Resource(); |
| new TestBug4179766().run(args); |
| } |
| |
| /** |
| * Ensure the resource cache is working correctly for a single |
| * resource from a single loader. If we get the same resource |
| * from the same loader twice, we should get the same resource. |
| */ |
| public void testCache() throws Exception { |
| Loader loader = new Loader(false); |
| ResourceBundle b1 = getResourceBundle(loader, "Bug4179766Resource"); |
| if (b1 == null) { |
| errln("Resource not found: Bug4179766Resource"); |
| } |
| ResourceBundle b2 = getResourceBundle(loader, "Bug4179766Resource"); |
| if (b2 == null) { |
| errln("Resource not found: Bug4179766Resource"); |
| } |
| printIDInfo("[bundle1]",b1); |
| printIDInfo("[bundle2]",b2); |
| if (b1 != b2) { |
| errln("Different objects returned by same ClassLoader"); |
| } |
| } |
| |
| /** |
| * Test that loaders with the same hash key still |
| * cache resources seperately |
| */ |
| public void testSameHash() throws Exception { |
| doTest(true); |
| } |
| |
| /** |
| * Test that loaders with different hash keys |
| * cache resources seperately |
| */ |
| public void testDifferentHash() throws Exception { |
| doTest(false); |
| } |
| |
| /** |
| * Ensure that cached resources for different ClassLoaders |
| * are cached seperately |
| */ |
| private void doTest(boolean sameHash) throws Exception { |
| ResourceBundle b1 = getResourceBundle(new Loader(sameHash), "Bug4179766Resource"); |
| if (b1 == null) { |
| errln("Resource not found: Bug4179766Resource"); |
| } |
| ResourceBundle b2 = getResourceBundle(new Loader(sameHash), "Bug4179766Resource"); |
| if (b2 == null) { |
| errln("Resource not found: Bug4179766Resource"); |
| } |
| printIDInfo("[bundle1]",b1); |
| printIDInfo("[bundle2]",b2); |
| if (b1 == b2) { |
| errln("Same object returned by different ClassLoaders"); |
| } |
| } |
| |
| /** |
| * Get a resource using a specified class loader to load the resource |
| */ |
| private ResourceBundle getResourceBundle(Loader loader, String name) throws Exception { |
| try { |
| Class c = loader.loadClass("Bug4179766Class"); |
| Bug4179766Getter test = (Bug4179766Getter)c.newInstance(); |
| return test.getResourceBundle(name); |
| } catch (ClassNotFoundException e) { |
| errln("Class not found by custom class loader: "+name); |
| throw e; |
| } catch (InstantiationException e) { |
| errln("Error instantiating: "+name); |
| throw e; |
| } catch (IllegalAccessException e) { |
| errln("IllegalAccessException instantiating: "+name); |
| throw e; |
| } |
| } |
| |
| /** |
| * Print information about an object |
| * [message][object's identity][object's class][object's loader][loaders hash][loaders identity] |
| */ |
| private void printIDInfo(String message, Object o) { |
| if (o == null) { |
| return; |
| } |
| Class c = o.getClass(); |
| ClassLoader l = c.getClassLoader(); |
| int hash = -1; |
| if (l != null) { |
| hash = l.hashCode(); |
| } |
| logln(message + System.identityHashCode(o) + " Class: " + c |
| + " ClassLoader: " + l + " loaderHash: " + hash |
| + " loaderPrimHash: " + System.identityHashCode(l)); |
| } |
| |
| /** |
| * A simple class loader that loads classes from the current |
| * working directory. The hash code of the loader can be |
| * set to be either the loaders identity or 0, allowing several |
| * loaders to have the same hashCode value. |
| */ |
| public class Loader extends ClassLoader { |
| private int thisHashCode; |
| |
| /** |
| * Create a new loader |
| */ |
| public Loader(boolean sameHash) { |
| if (sameHash) { |
| thisHashCode = SAME_HASH_CODE; |
| } else { |
| thisHashCode = getNextHashCode(); |
| } |
| } |
| |
| /** |
| * Return the hash code for this loader. |
| */ |
| public int hashCode() { |
| return thisHashCode; |
| } |
| |
| /** |
| * Get the data from the class file for the specified class. If |
| * the file can't be found, or the class is not one of the |
| * special ones listed below, return null. |
| * Bug4179766Class |
| * Bug4179766Resource |
| */ |
| private byte[] getClassData(String className) { |
| boolean shouldLoad = className.equals("Bug4179766Class"); |
| shouldLoad = shouldLoad || className.equals("Bug4179766Resource"); |
| |
| if (shouldLoad) { |
| try { |
| File file = new File(System.getProperty("test.classes", "."), className+CLASS_SUFFIX); |
| FileInputStream fi = new FileInputStream(file); |
| byte[] result = new byte[fi.available()]; |
| fi.read(result); |
| return result; |
| } catch (Exception e) { |
| return null; |
| } |
| } else { |
| return null; |
| } |
| } |
| |
| /** |
| * Load a class. Files we can load take preference over ones the system |
| * can load. |
| */ |
| public synchronized Class loadClass(String className, boolean resolveIt) |
| throws ClassNotFoundException { |
| |
| Class result = findLoadedClass(className); |
| if (result != null) { |
| printInfo(" ***Returning cached class: "+className, result); |
| return result; |
| } |
| |
| byte[] classData = getClassData(className); |
| if (classData == null) { |
| //we don't have a local copy of this one |
| return loadFromSystem(className); |
| } |
| |
| result = defineClass(classData, 0, classData.length); |
| if (result == null) { |
| //there was an error defining the class |
| return loadFromSystem(className); |
| } |
| |
| if (resolveIt) { |
| resolveClass(result); |
| } |
| |
| printInfo(" ***Loaded local class: "+className, result); |
| return result; |
| } |
| |
| /** |
| * Delegate loading to the system loader |
| */ |
| private Class loadFromSystem(String className) throws ClassNotFoundException { |
| try { |
| Class result = super.findSystemClass(className); |
| printInfo(" ***Returning system class: "+className, result); |
| return result; |
| } catch (ClassNotFoundException e) { |
| printInfo(" ***Class not found: "+className, null); |
| throw e; |
| } |
| } |
| |
| /** |
| * Print information about a class that was loaded |
| * [loader identity][message][class identity] |
| */ |
| private void printInfo(String message, Class c) { |
| if (c != null) { |
| logln(""+System.identityHashCode(this)+" "+message+" "+System.identityHashCode(c)); |
| } else { |
| logln(""+System.identityHashCode(this)+" "+message); |
| } |
| } |
| } |
| } |
