/*
* Copyright ( c ) 2015 , 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 .
*/
import java.net.URI;
import java.nio.file.FileSystem;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
/*
* @ test
* @ summary Test to see if thread interrupt handling interferes with other threads .
* @ run main / othervm - Djdk . image . map . all = false JImageOpenTest
*/
public class JImageOpenTest {
private static final int NTHREADS = 10 ;
public static void main(String[] args) throws Exception {
final FileSystem fs = FileSystems.getFileSystem(URI.create("jrt:/" ));
final Path root = fs.getPath("/modules" );
final List<String> names = Files.walk(root)
.filter(p -> p.getNameCount() > 2 )
.filter(p -> ModuleLayer.boot().findModule(p.getName(1 ).toString()).isPresent())
.map(p -> p.subpath(2 , p.getNameCount()))
.map(p -> p.toString())
.filter(s -> s.endsWith(".class" ) && !s.endsWith("module-info.class" ))
.collect(Collectors.toList());
Runnable r = new Runnable() {
@Override
public void run() {
names.forEach(name -> {
String cn = name.substring(0 , name.length() - 6 ).replace('/' , '.' );
try {
Class .forName(cn, false , ClassLoader.getSystemClassLoader());
} catch (Exception ex) {
System.err.println(Thread .currentThread() + " " + ex.getClass());
}
});
}
};
Thread [] threads = new Thread [NTHREADS];
for (int i = 0 ; i < NTHREADS; i++) {
Thread thread = new Thread (r);
threads[i] = thread ;
thread .start();
}
Thread .sleep(1 );
for (int i = 0 ; i < NTHREADS; i++) {
Thread thread = threads[i];
if (thread .isAlive()) {
thread .interrupt();
break ;
}
}
for (int i = 0 ; i < NTHREADS; i++) {
Thread thread = threads[i];
thread .join();
}
}
}
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