test/java/util/Vector/SyncLastIndexOf.java

/*
 * Copyright (c) 2000, 2001, 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
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 * questions.
 */

/*
 * @test
 * @bug 4334376
 * @summary Vector's lastIndexOf(Object) was lacking synchronization
 * @author Konstantin Kladko
 */
import java.util.*;

public class SyncLastIndexOf {

    static Vector v = new Vector();

    static class RemovingThread extends Thread {

        public void run() {
           synchronized(v) {
                try {
                sleep(200);
                } catch (InterruptedException e) {
                }
                v.removeElementAt(0);
           }
        }
    }

    public static void main(String args[]) {
        Integer x = new Integer(1);
        v.addElement(x);
        new RemovingThread().start();
        try {
            v.lastIndexOf(x);
        } catch (IndexOutOfBoundsException e) {
            throw new RuntimeException(
                  "Vector.lastIndexOf() synchronization failed.");
        }
    }
}