jdk8-mips64-public/langtools: test/tools/javac/generics/odersky/BadTest.java@4868a36f6fd8

     1 /*

     2  * Copyright (c) 2002, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

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    24 /*

    25  * @test

    26  * @ bug

    27  * @summary Negative regression test from odersky

    28  * @author odersky

    29  *

    30  * @compile/fail  BadTest.java

    31  */

    33 class BadTest {

    34     static class Main {

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

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

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

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

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

    42             List<Cell<String>> as = nil().prepend(makeCell(null));

    43             List<Cell<String>> bs = cons(makeCell(null), nil());

    44             List<String> xs = id(nil());

    45             List<String> ys = cons("abc", id(nil()));

    46             List<String> zs = id(nil()).prepend("abc");

    47             List<Cell<String>> us = id(nil()).prepend(makeCell(null));

    48             List<Cell<String>> vs = cons(makeCell(null), id(nil()));

    49             System.out.println(nil() instanceof List<String>);

    50             nil();

    51         }

    53     }

    54 }

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