1 /*

     2  * Copyright (c) 2015, 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    8071453

    27  * @summary Verify that generics work with private method in interface

    28  */

    29 

    30 public class PrivateGenerics {

    31 

    32     interface I<T> {

    33         private T foo() { return null; };

    34         default void m(T t) {

    35             T t1 = t;

    36             T t2 = foo();

    37         }

    38     }

    39 

    40     interface J {

    41         private <M> M foo() { return null; }

    42         default <N> void m(N n) {

    43             N n1 = n;

    44             N n2 = foo();

    45         }

    46     }

    47 

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

    49         I<String> i = new I<>() {};

    50         i.m("string");

    51         String s = i.foo();

    52 

    53         J j = new J() {};

    54         j.m("string");

    55         s = j.foo();

    56     }

    57 }