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/*
* Copyright (c) 2019, 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 8231387
* @library ../testlibrary
* @summary make sure getService() avoids a race
* @author Tianmin Shi
*/
import java.security.Provider;
public class GetServiceRace {
private static final Provider testProvider;
static {
testProvider = new Provider("MyProvider", 1.0, "test") {
};
testProvider.put("CertificateFactory.Fixed", "MyCertificateFactory");
}
private static final int NUMBER_OF_RETRIEVERS = 3;
private static final int TEST_TIME_MS = 1000;
public static boolean testFailed = false;
public static void main(String[] args) throws Exception {
Updater updater = new Updater();
updater.start();
Retriever [] retrievers = new Retriever[NUMBER_OF_RETRIEVERS];
for (int i=0; i<retrievers.length; i++) {
retrievers[i] = new Retriever();
retrievers[i].start();
}
Thread.sleep(TEST_TIME_MS);
System.out.println("Interrupt");
updater.interrupt();
updater.join();
for (int i=0; i<retrievers.length; i++) {
retrievers[i].interrupt();
retrievers[i].join();
}
System.out.println("Done");
if (testFailed) {
throw new Exception("Test Failed");
}
System.out.println("Test Passed");
}
private static class Updater extends Thread {
@Override
public void run() {
while (!isInterrupted()) {
testProvider.put("CertificateFactory.Added", "MyCertificateFactory");
}
System.out.println("Updater stopped");
}
}
private static class Retriever extends Thread {
@Override
public void run() {
while (!isInterrupted()) {
Provider.Service service = testProvider.getService("CertificateFactory", "Fixed");
if (service == null) {
if (!testFailed) {
System.err.println("CertificateFactory.Fixed is NULL");
testFailed = true;
}
} else {
//System.out.println("CertificateFactory.Fixed is good");
}
}
System.out.println("Retriever stopped");
}
}
}
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