1 /*

     2  * Copyright (c) 2014, 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  */

    23 

    24 /*

    25  * @test

    26  * @bug 8029002

    27  * @summary javac should take multiple upper bounds into account in incorporation

    28  * @compile MultipleUpperBoundsIncorporationTest.java

    29  */

    30 

    31 import java.util.ArrayList;

    32 import java.util.List;

    33 

    34 public class MultipleUpperBoundsIncorporationTest {

    35 

    36     static class TestCase1 {

    37         interface Task<E extends Exception> {}

    38 

    39         class Comparator<T> {}

    40 

    41         class CustomException extends Exception {}

    42 

    43         class TaskQueue<E extends Exception, T extends Task<E>> {}

    44 

    45         abstract class Test {

    46             abstract <E extends Exception, T extends Task<E>> TaskQueue<E, T> create(Comparator<? super T> comparator);

    47 

    48             void f(Comparator<Task<CustomException>> comp) {

    49                 TaskQueue<CustomException, Task<CustomException>> queue = create(comp);

    50                 queue.getClass();

    51             }

    52         }

    53     }

    54 

    55     static class TestCase2 {

    56         public <T, E extends List<T>> E typedNull() {

    57             return null;

    58         }

    59 

    60         public void call() {

    61             ArrayList<String> list = typedNull();

    62         }

    63     }

    64 

    65     static class TestCase3 {

    66         interface I extends Iterable<String> {}

    67 

    68         <T, Exp extends Iterable<T>> Exp typedNull() { return null; }

    69         I i = typedNull();

    70     }

    71 

    72 }