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/*
* Copyright (c) 2007, 2018, 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.
*/
package nsk.jvmti.AttachOnDemand.attach045;
import nsk.share.CustomClassLoader;
import nsk.share.TestBug;
import nsk.share.aod.*;
import java.util.*;
/*
* This target application provokes following events:
* - ClassLoad
* - ClassPrepare
* - ThreadStart
* - ThreadEnd
* - VMObjectAlloc
*
* Note: number of generated events should be up-to-date with numbers expected by test agents
*/
public class attach045Target extends TargetApplicationWaitingAgents {
static final String classPathOption = "classPath";
List<Thread> threadsGeneratingEvents = new ArrayList<Thread>();
static class ArgParser extends AODTargetArgParser {
ArgParser(String[] args) {
super(args);
}
protected boolean checkOption(String option, String value) {
if (super.checkOption(option, value))
return true;
if (option.equals(classPathOption))
return true;
return false;
}
protected void checkOptions() {
super.checkOptions();
if (!options.containsKey(classPathOption))
throw new TestBug("Classpath wasn't specified");
}
String getClasspath() {
return options.getProperty(classPathOption);
}
}
protected AODTargetArgParser createArgParser(String[] args) {
return new ArgParser(args);
}
protected void init(String[] args) {
for (int i = 0; i < 10; i++) {
ClassEventsThread thread = new ClassEventsThread(50, ((ArgParser)argParser).getClasspath());
thread.setName("attach045-ClassEventsThread-" + i);
threadsGeneratingEvents.add(thread);
}
}
static final String CLASS_TO_LOAD_NAME = "nsk.jvmti.AttachOnDemand.attach045.ClassToLoad";
static class TestClassLoader extends CustomClassLoader {
public Class<?> loadClass(String name) throws ClassNotFoundException {
if (name.equals(CLASS_TO_LOAD_NAME))
return findClass(name);
else
return super.loadClass(name);
}
}
class ClassEventsThread extends Thread {
int eventsNumber;
String classPath;
ClassEventsThread(int eventsNumber, String classPath) {
this.eventsNumber = eventsNumber;
this.classPath = classPath;
}
public void run() {
try {
for (int i = 0; i < eventsNumber; i++) {
/*
* Provoke ClassLoad/ClassPrepare events
*/
TestClassLoader classLoader = new TestClassLoader();
classLoader.setClassPath(classPath);
Class<?> klass = Class.forName(CLASS_TO_LOAD_NAME, true, classLoader);
/*
* Provoke VMObjectAlloc event
*/
klass.newInstance();
}
} catch (Throwable t) {
setStatusFailed(t);
}
}
}
protected void targetApplicationActions() throws Throwable {
for (Thread thread : threadsGeneratingEvents) {
thread.start();
}
log.display("Starting to generate events");
/*
* Provoke ThreadStart/ThreadEnd events
*/
for (int i = 0; i < 100; i++) {
Thread thread = new Thread(new Runnable() {
public void run() {
// do nothing
}
});
thread.setName("attach045-ThreadStartEndEventsThread-" + i);
thread.start();
thread.join();
}
for (Thread thread : threadsGeneratingEvents) {
thread.join();
}
log.display("All events were generated");
}
public static void main(String[] args) {
new attach045Target().runTargetApplication(args);
}
}
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