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Java example source code file (Bug4168625Test.java)
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The Bug4168625Test.java Java example source code
/*
* Copyright (c) 2007, 2011, 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
@summary test Resource Bundle for bug 4168625
@build Bug4168625Class Bug4168625Getter Bug4168625Resource Bug4168625Resource3 Bug4168625Resource3_en Bug4168625Resource3_en_CA Bug4168625Resource3_en_IE Bug4168625Resource3_en_US Bug4168625Resource2_en_US Bug4168625Resource2
@run main/timeout=600 Bug4168625Test
@bug 4168625 6993339
*/
/*
*
*
* (C) Copyright IBM Corp. 1999 - All Rights Reserved
*
* The original version of this source code and documentation is
* copyrighted and owned by IBM. These materials are provided
* under terms of a License Agreement between IBM and Sun.
* This technology is protected by multiple US and International
* patents. This notice and attribution to IBM may not be removed.
*
*/
import java.util.*;
import java.io.*;
/**
* This test tries to correct two efficiency problems with the caching
* mechanism of ResourceBundle. It also allows concurrent loads
* of resource bundles to be performed if the bundles are unrelated (ex. a
* load of a local system resource by one thread while another thread is
* doing a slow load over a network).
*/
public class Bug4168625Test extends RBTestFmwk {
public static void main(String[] args) throws Exception {
new Bug4168625Test().run(args);
}
/**
* Verify that getBundle will do something reasonable when part of the
* resource hierarchy is missing.
*/
public void testMissingParent() throws Exception {
final Locale oldDefault = Locale.getDefault();
Locale.setDefault(new Locale("en", "US"));
try {
final Locale loc = new Locale("jf", "jf");
ResourceBundle bundle = ResourceBundle.getBundle("Bug4168625Resource2", loc);
final String s1 = bundle.getString("name");
if (!s1.equals("Bug4168625Resource2_en_US")) {
errln("getBundle did not find leaf bundle: "+bundle.getClass().getName());
}
final String s2 = bundle.getString("baseName");
if (!s2.equals("Bug4168625Resource2")) {
errln("getBundle did not set up proper inheritance chain");
}
} finally {
Locale.setDefault(oldDefault);
}
}
/**
* Previous versions of ResourceBundle have had the following
* caching behavior. Assume the classes
* Bug4168625Resource_fr_FR, Bug4168625Resource_fr,
* Bug4168625Resource_en_US, and Bug4168625Resource_en don't
* exist. The class Bug4168625Resource does. Assume the default
* locale is en_US.
* <P>
* <pre>
* getBundle("Bug4168625Resource", new Locale("fr", "FR"));
* -->try to load Bug4168625Resource_fr_FR
* -->try to load Bug4168625Resource_fr
* -->try to load Bug4168625Resource_en_US
* -->try to load Bug4168625Resource_en
* -->load Bug4168625Resource
* -->cache Bug4168625Resource as Bug4168625Resource
* -->cache Bug4168625Resource as Bug4168625Resource_en
* -->cache Bug4168625Resource as Bug4168625Resource_en_US
* -->return Bug4168625Resource
* getBundle("Bug4168625Resource", new Locale("fr", "FR"));
* -->try to load Bug4168625Resource_fr_FR
* -->try to load Bug4168625Resource_fr
* -->find cached Bug4168625Resource_en_US
* -->return Bug4168625Resource_en_US (which is realy Bug4168625Resource)
* </pre>
* <P>
* The second call causes two loads for Bug4168625Resource_fr_FR and
* Bug4168625Resource_en which have already been tried and failed. These
* two loads should have been cached as Bug4168625Resource by the first
* call.
*
* The following, more efficient behavior is desired:
* <P>
* <pre>
* getBundle("Bug4168625Resource", new Locale("fr", "FR"));
* -->try to load Bug4168625Resource_fr_FR
* -->try to load Bug4168625Resource_fr
* -->try to load Bug4168625Resource_en_US
* -->try to load Bug4168625Resource_en
* -->load Bug4168625Resource
* -->cache Bug4168625Resource as Bug4168625Resource
* -->cache Bug4168625Resource as Bug4168625Resource_en
* -->cache Bug4168625Resource as Bug4168625Resource_en_US
* -->cache Bug4168625Resource as Bug4168625Resource_fr
* -->cache Bug4168625Resource as Bug4168625Resource_fr_FR
* -->return Bug4168625Resource
* getBundle("Bug4168625Resource", new Locale("fr", "FR"));
* -->find cached Bug4168625Resource_fr_FR
* -->return Bug4168625Resource_en_US (which is realy Bug4168625Resource)
* </pre>
* <P>
*
*/
public void testCacheFailures() throws Exception {
checkResourceLoading("Bug4168625Resource", new Locale("fr", "FR"));
}
/**
* Previous versions of ResourceBundle have had the following
* caching behavior. Assume the current locale is locale is en_US.
* The classes Bug4168625Resource_en_US, and Bug4168625Resource_en don't
* exist. The class Bug4168625Resource does.
* <P>
* <pre>
* getBundle("Bug4168625Resource", new Locale("en", "US"));
* -->try to load Bug4168625Resource_en_US
* -->try to load Bug4168625Resource_en
* -->try to load Bug4168625Resource_en_US
* -->try to load Bug4168625Resource_en
* -->load Bug4168625Resource
* -->cache Bug4168625Resource as Bug4168625Resource
* -->cache Bug4168625Resource as Bug4168625Resource_en
* -->cache Bug4168625Resource as Bug4168625Resource_en_US
* -->return Bug4168625Resource
* </pre>
* <P>
* The redundant loads of Bug4168625Resource_en_US and Bug4168625Resource_en
* should not occur. The desired behavior is as follows:
* <P>
* <pre>
* getBundle("Bug4168625Resource", new Locale("en", "US"));
* -->try to load Bug4168625Resource_en_US
* -->try to load Bug4168625Resource_en
* -->load Bug4168625Resource
* -->cache Bug4168625Resource as Bug4168625Resource
* -->cache Bug4168625Resource as Bug4168625Resource_en
* -->cache Bug4168625Resource as Bug4168625Resource_en_US
* -->return Bug4168625Resource
* </pre>
* <P>
*/
public void testRedundantLoads() throws Exception {
checkResourceLoading("Bug4168625Resource", Locale.getDefault());
}
/**
* Ensure that resources are only loaded once and are cached correctly
*/
private void checkResourceLoading(String resName, Locale l) throws Exception {
final Loader loader = new Loader( new String[] { "Bug4168625Class" }, new String[] { "Bug4168625Resource3_en_US", "Bug4168625Resource3_en_CA" });
final Class c = loader.loadClass("Bug4168625Class");
Bug4168625Getter test = (Bug4168625Getter)c.newInstance();
final String resClassName;
if (l.toString().length() > 0) {
resClassName = resName+"_"+l;
} else {
resClassName = resName;
}
Object bundle = test.getResourceBundle(resName, l);
loader.logClasses("Initial lookup of "+resClassName+" generated the following loads:");
final Vector lastLoad = new Vector(loader.loadedClasses.size());
boolean dups = false;
for (int i = loader.loadedClasses.size() - 1; i >= 0 ; i--) {
final Object item = loader.loadedClasses.elementAt(i);
loader.loadedClasses.removeElementAt(i);
if (loader.loadedClasses.contains(item)) {
logln("Resource loaded more than once: "+item);
dups = true;
} else {
lastLoad.addElement(item);
}
}
if (dups) {
errln("ResourceBundle loaded some classes multiple times");
}
loader.loadedClasses.removeAllElements();
bundle = test.getResourceBundle(resName, l);
loader.logClasses("Second lookup of "+resClassName+" generated the following loads:");
dups = false;
for (int i = 0; i < loader.loadedClasses.size(); i++) {
Object item = loader.loadedClasses.elementAt(i);
if (lastLoad.contains(item)) {
logln("ResourceBundle did not cache "+item+" correctly");
dups = true;
}
}
if (dups) {
errln("Resource bundle not caching some classes properly");
}
}
private class ConcurrentLoadingThread extends Thread {
private Loader loader;
public Object bundle;
private Bug4168625Getter test;
private Locale locale;
private String resourceName = "Bug4168625Resource3";
public ConcurrentLoadingThread(Loader loader, Bug4168625Getter test, Locale l, String resourceName) {
this.loader = loader;
this.test = test;
this.locale = l;
this.resourceName = resourceName;
}
public ConcurrentLoadingThread(Loader loader, Bug4168625Getter test, Locale l) {
this.loader = loader;
this.test = test;
this.locale = l;
}
public void run() {
try {
logln(">>"+threadName()+">run");
bundle = test.getResourceBundle(resourceName, locale);
} catch (Exception e) {
errln("TEST CAUGHT UNEXPECTED EXCEPTION: "+e);
} finally {
logln("<<"+threadName()+""+threadName()+">waitUntilPinged");
loader.notifyEveryone();
try {
wait(30000); //wait 30 seconds max.
} catch (InterruptedException e) {
logln("Test deadlocked.");
}
logln("<<"+threadName()+""+threadName()+">ping "+threadName(this));
notifyAll();
logln("<<"+threadName()+""+threadName()+">load "+className);
loadedClasses.addElement(className);
result = findLoadedClass(className);
if (result == null) {
final byte[] classData = getClassData(className);
if (classData == null) {
//we don't have a local copy of this one
logln("Loading system class: "+className);
result = loadFromSystem(className);
} else {
result = defineClass(classData, 0, classData.length);
if (result == null) {
//there was an error defining the class
result = loadFromSystem(className);
}
}
if ((result != null) && resolveIt) {
resolveClass(result);
}
}
}
for (int i = classesToWaitFor.length-1; i >= 0; --i) {
if (className.equals(classesToWaitFor[i])) {
rendezvous();
break;
}
}
logln("<<"+threadName()+""+threadName()+">waitForNotify");
if (count > notifyCount) {
try {
wait(time);
} catch (InterruptedException e) {
}
} else {
logln(" count("+count+") > notifyCount("+notifyCount+")");
}
logln("<<"+threadName()+""+threadName()+">notifyEveryone");
notifyCount++;
notifyAll();
logln("<<"+threadName()+"
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