1 /*

     2  * Copyright 2002 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /*

    25  * @test

    26  * @ bug

    27  * @summary Positive regression test from odersky

    28  * @author odersky

    29  *

    30  * @compile -source 1.5 Test2.java

    31  */

    32 

    33 class Test2 {

    34     interface Ord {}

    35 

    36     static <B extends Ord> List<B> nil() { return new List<B>(); }

    37 

    38     static <A> List<A> cons(A x, List<A> xs) { return xs.prepend(x); }

    39     static <A> Cell<A> makeCell(A x) { return new Cell<A>(x); }

    40     static <A> A id(A x) { return x; }

    41 

    42     public static void main(String[] args) {

    43         List<Ord> xs = nil();

    44         List<Ord> zs = nil().prependList(nil());

    45 

    46         System.out.println(nil());

    47         System.out.println(nil().length());

    48 

    49         List<Ord> a = args.length == 1 ? nil() : nil();

    50         a = (List<Ord>) nil();

    51     }

    52 

    53 }