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/*
* Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
* Copyright (c) 2019, Azul Systems, Inc. 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 8231584
* @library /test/lib
* @run main/othervm LoadLibraryTest
*/
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.nio.file.Path;
import java.net.MalformedURLException;
import java.net.URLClassLoader;
import java.net.URL;
import jdk.test.lib.compiler.CompilerUtils;
public class LoadLibraryTest {
static Thread thread1 = null;
static Thread thread2 = null;
static volatile boolean thread1Ready = false;
private static final String TEST_SRC = System.getProperty("test.src");
private static final Path SRC_DIR = Paths.get(TEST_SRC, "src");
private static final Path CLS_DIR = Paths.get("classes");
static TestClassLoader loader;
static void someLibLoad() {
try {
/*
FileSystems.getDefault();
// jdk/jdk: loads directly from Bootstrap Classloader (doesn't take lock on Runtime)
java.net.NetworkInterface.getNetworkInterfaces();
*/
Class c = Class.forName("Target2", true, loader);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
static class TestClassLoader extends URLClassLoader {
boolean passed = false;
public boolean passed() {
return passed;
}
TestClassLoader() throws MalformedURLException {
super(new URL[] { new URL("file://" + CLS_DIR.toAbsolutePath().toString() + '/') });
}
public String findLibrary(String name) {
System.out.println("findLibrary " + name);
if ("someLibrary".equals(name)) {
try {
synchronized(thread1) {
while(!thread1Ready) {
thread1.wait();
}
thread1.notifyAll();
}
Thread.sleep(10000);
System.out.println("Thread2 load");
someLibLoad();
// no deadlock happened
passed = true;
} catch (Exception e) {
throw new RuntimeException(e);
}
return null;
}
return super.findLibrary(name);
}
}
public static void main(String[] args) throws Exception {
loader = new TestClassLoader();
if (!CompilerUtils.compile(SRC_DIR, CLS_DIR)) {
throw new Exception("Can't compile");
}
thread1 = new Thread() {
public void run() {
try {
synchronized(this) {
thread1Ready = true;
thread1.notifyAll();
thread1.wait();
}
} catch(InterruptedException e) {
throw new RuntimeException(e);
}
System.out.println("Thread1 load");
someLibLoad();
};
};
thread2 = new Thread() {
public void run() {
try {
Class c = Class.forName("Target", true, loader);
System.out.println(c);
} catch (Exception e) {
throw new RuntimeException(e);
}
};
};
thread1.setDaemon(true);
thread2.setDaemon(true);
thread1.start();
thread2.start();
thread1.join();
thread2.join();
if (!loader.passed()) {
throw new RuntimeException("FAIL");
}
}
}
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