/*

 * Copyright (c) 1999, 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     4216997

 * @summary Cloning a subclass of LinkedList results in an object that isn't

 *          an instance of the subclass.  The same applies to TreeSet and

 *          TreeMap.

 */

import java.util.*;

public class Clone {

    public static void main(String[] args) {

        LinkedList2 l = new LinkedList2();

        LinkedList2 lClone = (LinkedList2) l.clone();

        if (!(l.equals(lClone) && lClone.equals(l)))

            throw new RuntimeException("LinkedList.clone() is broken 1.");

        l.add("a");

        lClone = (LinkedList2) l.clone();

        if (!(l.equals(lClone) && lClone.equals(l)))

            throw new RuntimeException("LinkedList.clone() is broken 2.");

        l.add("b");

        lClone = (LinkedList2) l.clone();

        if (!(l.equals(lClone) && lClone.equals(l)))

            throw new RuntimeException("LinkedList.clone() is broken 2.");

        TreeSet2 s = new TreeSet2();

        TreeSet2 sClone = (TreeSet2) s.clone();

        if (!(s.equals(sClone) && sClone.equals(s)))

            throw new RuntimeException("TreeSet.clone() is broken.");

        s.add("a");

        sClone = (TreeSet2) s.clone();

        if (!(s.equals(sClone) && sClone.equals(s)))

            throw new RuntimeException("TreeSet.clone() is broken.");

        s.add("b");

        sClone = (TreeSet2) s.clone();

        if (!(s.equals(sClone) && sClone.equals(s)))

            throw new RuntimeException("TreeSet.clone() is broken.");

        TreeMap2 m = new TreeMap2();

        TreeMap2 mClone = (TreeMap2) m.clone();

        if (!(m.equals(mClone) && mClone.equals(m)))

            throw new RuntimeException("TreeMap.clone() is broken.");

        m.put("a", "b");

        mClone = (TreeMap2) m.clone();

        if (!(m.equals(mClone) && mClone.equals(m)))

            throw new RuntimeException("TreeMap.clone() is broken.");

        m.put("c", "d");

        mClone = (TreeMap2) m.clone();

        if (!(m.equals(mClone) && mClone.equals(m)))

            throw new RuntimeException("TreeMap.clone() is broken.");

    }

    private static class LinkedList2 extends LinkedList {};

    private static class TreeSet2    extends TreeSet {};

    private static class TreeMap2    extends TreeMap {};

}