jdk8-mips64-public/langtools: test/tools/javac/generics/wildcards/T6450290.java@447c300a24e7

6450290: Capture of nested wildcards causes type error
Summary: A missing capture conversion makes javac to think that some expressions are well-formed even when they aren't
Reviewed-by: jjg

     1 /*

     2  * Copyright 2004-2006 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  */

    24 /*

    25  * @test

    26  * @bug 6450290

    27  * @summary Capture of nested wildcards causes type error

    28  * @author Maurizio Cimadamore

    29  * @compile/fail T6450290.java

    30  */

    32 public class T6450290 {

    33     static class Box<X extends Box<?,?>, T extends X> {

    34         T value;

    35         Box<X, T> same;

    36     }

    38     static class A extends Box<A,A> {}

    39     static class B extends Box<B,B> {}

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

    41         Box<?,?> b = new Box<Box<A,A>,Box<A,A>>();

    42         b.value.same = new Box<B,B>(); //javac misses this bad assignment

    43     }

    44 }

Mercurial > jdk8-mips64-public > langtools / file revision

test/tools/javac/generics/wildcards/T6450290.java@447c300a24e7

test/tools/javac/generics/wildcards/T6450290.java