test/tools/javac/lambda/MostSpecific05.java

Wed, 14 Nov 2018 10:18:25 -0800

author
diazhou
date
Wed, 14 Nov 2018 10:18:25 -0800
changeset 3762
7909abb85562
parent 2000
4a6acc42c3a1
child 2525
2eb010b6cb22
permissions
-rw-r--r--

Added tag jdk8u201-b04 for changeset a7f48b9dfb82

     1 /*
     2  * Copyright (c) 2012, 2013, 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
    21  * questions.
    22  */
    24 /*
    25  * @test
    26  * @bug 8003280
    27  * @summary Add lambda tests
    28  *  Structural most specific doesn't handle cases with wildcards in functional interfaces
    29  * @compile/fail/ref=MostSpecific05.out -XDrawDiagnostics MostSpecific05.java
    30  */
    31 public class MostSpecific05 {
    33     interface ObjectConverter<T extends Object> {
    34         T map(Object o);
    35     }
    37     interface NumberConverter<T extends Number> {
    38         T map(Object o);
    39     }
    41     static class MyMapper<A extends Object, B extends Number> {
    42         void map(ObjectConverter<? extends A> m) { }
    43         void map(NumberConverter<? extends B> m) { }
    44     }
    46     public static void main(String[] args) {
    47         MyMapper<Number, Double> mm = new MyMapper<Number, Double>();
    48         mm.map(e->1.0); //ambiguous - implicit
    49         mm.map((Object e)->1.0); //ok
    50     }
    51 }

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