test/java/util/LinkedList/AddAll.java

/*
 * Copyright (c) 1998, 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
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 * questions.
 */

/**
 * @test
 * @bug 4163207
 * @summary AddAll was prepending instead of appending!
 */

import java.util.*;

public class AddAll {
    public static void main(String[] args) throws Exception {
        List head = Collections.nCopies(7, "deadly sin");
        List tail = Collections.nCopies(4, "basic food group");
        List l1 = new ArrayList(head);
        List l2 = new LinkedList(head);
        l1.addAll(tail);
        l2.addAll(tail);
        if (!l1.equals(l2))
            throw new RuntimeException("addAll is broken.");
    }
}