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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
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* 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 ) .
*
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* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
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*/
/*
* @ 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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¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-10-11)
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