test/jdk/java/util/Vector/ComodifiedRemoveAllElements.java

/*
 * Copyright (c) 2000, 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 4298133
 * @summary Due to a bug in Vector's removeAllElements(),
 *          the modification counter would not get incremented.
 * @author Konstantin Kladko
 */

import java.util.ConcurrentModificationException;
import java.util.Iterator;
import java.util.Vector;

public class ComodifiedRemoveAllElements {
    public static void main(String[] args) {
        Vector v = new Vector();
        v.addElement(null);
        Iterator it = v.iterator();
        v.removeAllElements();
        try {
            it.next();
        } catch (ConcurrentModificationException cme) {
            return;
        }
        throw new RuntimeException(
                  "Vector.RemoveAllElements() modCount increment failed.");
    }
}