/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* @test
* @bug 4843268
* @summary The BasicJeriExporter implementation must not hold a
* global lock while attempting to listen on a ListenEndpoint.
*
* @build GlobalListenLock
* @run main/othervm GlobalListenLock
*/
import java.io.IOException;
import java.rmi.Remote;
import java.rmi.server.ExportException;
import net.jini.core.constraint.InvocationConstraints;
import net.jini.export.Exporter;
import net.jini.jeri.BasicILFactory;
import net.jini.jeri.BasicJeriExporter;
import net.jini.jeri.Endpoint;
import net.jini.jeri.RequestDispatcher;
import net.jini.jeri.ServerEndpoint;
import net.jini.jeri.tcp.TcpServerEndpoint;
public class GlobalListenLock {
private static Object lock = new Object();
private static boolean blocking = false;
public static void main(String[] args) throws Exception {
System.err.println("\nRegression test for bug 4843268\n");
Thread t = new Thread(new Runnable() {
public void run() {
Exporter exporter =
new BasicJeriExporter(new BlockingListenServerEndpoint(),
new BasicILFactory(), false, false);
try {
exporter.export(new Remote() { });
} catch (ExportException e) {
throw new Error(e);
}
}
});
t.setDaemon(true);
t.start();
synchronized (lock) {
while (!blocking) {
lock.wait();
}
}
Exporter exporter =
new BasicJeriExporter(TcpServerEndpoint.getInstance(0),
new BasicILFactory(), false, false);
exporter.export(new Remote() { });
exporter.unexport(true);
System.err.println("TEST PASSED");
}
private static class BlockingListenServerEndpoint
implements ServerEndpoint
{
BlockingListenServerEndpoint() { }
public InvocationConstraints checkConstraints(InvocationConstraints c)
{
return InvocationConstraints.EMPTY;
}
public Endpoint enumerateListenEndpoints(ListenContext lc)
throws IOException
{
lc.addListenEndpoint(new ListenEndpoint() {
public void checkPermissions() { }
public ListenHandle listen(RequestDispatcher rd) {
synchronized (lock) {
blocking = true;
lock.notifyAll();
}
while (true) {
try {
Thread.sleep(Long.MAX_VALUE);
} catch (InterruptedException e) {
}
}
}
});
return null;
}
}
}