test/jdk/java/beans/PropertyChangeSupport/TestSynchronization.java

/*
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 * 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.
 *
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 */

/*
 * @test
 * @bug 5004188
 * @summary Tests synchronization
 * @author Sergey Malenkov
 */

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.JButton;

public class TestSynchronization {
    private static boolean isCalled;

    public static void main(String[] args) {
        final JButton button = new JButton();
        button.addPropertyChangeListener("name", new PropertyChangeListener() {
            public void propertyChange(PropertyChangeEvent event) {
                isCalled = true;
            }
        });
        button.addPropertyChangeListener(new PropertyChangeListener() {
            public void propertyChange(PropertyChangeEvent event) {
                for (PropertyChangeListener listener : button.getPropertyChangeListeners())
                    button.removePropertyChangeListener(listener);
            }
        });
        button.setName(null);
        if (!isCalled)
            throw new Error("test failed");
    }
}