/*
* 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.
*/
package org.apache.jackrabbit.core.state;
import org.apache.jackrabbit.core.state.DefaultISMLocking;
import org.apache.jackrabbit.core.state.ISMLocking;
import org.apache.jackrabbit.core.state.ISMLocking.ReadLock;
import org.apache.jackrabbit.core.state.ISMLocking.WriteLock;
import org.apache.jackrabbit.test.JUnitTest;
/**
* Tests the DefaultISMLocking class.
*/
public class DefaultISMLockingDeadlockTest extends JUnitTest {
public void test() throws InterruptedException {
final ISMLocking lock = new DefaultISMLocking();
WriteLock w1 = lock.acquireWriteLock(null);
ReadLock r1 = w1.downgrade();
final InterruptedException[] ex = new InterruptedException[1];
Thread thread = new Thread() {
public void run() {
try {
lock.acquireWriteLock(null).release();
} catch (InterruptedException e) {
ex[0] = e;
}
}
};
thread.start();
Thread.sleep(100);
lock.acquireReadLock(null).release();
r1.release();
thread.join();
if (ex[0] != null) {
throw ex[0];
}
}
}