7085024: internal error; cannot instantiate Foo
Summary: Types.isConvertible does not handle erroneous types correctly
Reviewed-by: jjg
/*
* Copyright (c) 2010, 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.
*/
/*
* @test
* @bug 6963811
* @summary Tests deadlock in Encoder
* @author Sergey Malenkov
*/
import java.beans.Encoder;
import java.beans.DefaultPersistenceDelegate;
public class Test6963811 implements Runnable {
private static final Encoder ENCODER = new Encoder();
private final long time;
private final boolean sync;
public Test6963811(long time, boolean sync) {
this.time = time;
this.sync = sync;
}
public void run() {
try {
Thread.sleep(this.time); // increase the chance of the deadlock
if (this.sync) {
synchronized (Test6963811.class) {
ENCODER.getPersistenceDelegate(Super.class);
}
}
else {
ENCODER.getPersistenceDelegate(Sub.class);
}
}
catch (Exception exception) {
exception.printStackTrace();
}
}
public static void main(String[] args) throws Exception {
Thread[] threads = new Thread[2];
for (int i = 0; i < threads.length; i++) {
threads[i] = new Thread(new Test6963811(0L, i > 0));
threads[i].start();
Thread.sleep(500L); // increase the chance of the deadlock
}
for (Thread thread : threads) {
thread.join();
}
}
public static class Super {
}
public static class Sub extends Super {
}
public static class SubPersistenceDelegate extends DefaultPersistenceDelegate {
public SubPersistenceDelegate() {
new Test6963811(1000L, true).run();
}
}
}