1 /*
 2  * Copyright (c) 2021, 2025, 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  * @summary Test substitutability of inner class and anonymous class that
27  *          has the enclosing instance and possibly other captured outer locals
28  * @enablePreview
29  * @run junit/othervm Nest
30  */
31 
32 import org.junit.jupiter.api.Test;
33 import static org.junit.jupiter.api.Assertions.*;
34 public class Nest {
35     @Test
36     public void test2() {
37         Outer n = new Outer(1);
38         Outer.Inner inner = n.new Inner(10);
39         Outer n1 = new Outer(1);
40         Outer n2 = new Outer(2);
41         // o1.new Inner(1) == o2.new Inner(1) iff o1 == o2
42         assertEquals(n1.new Inner(10), inner);
43         assertEquals(n2.new Inner(10), new Outer(2).new Inner(10));
44     }
45 
46     value class Outer {
47         final int i;
48         Outer(int i) {
49             this.i = i;
50         }
51 
52         value class Inner {
53             final int ic;
54             Inner(int ic) {
55                 this.ic = ic;
56             }
57         }
58     }
59 }