1/*
2 * Copyright (c) 2011, 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 8003280
27 * @summary Add lambda tests
28 *   Test constructor reference
29 * @compile MethodRef4.java
30 * @run main MethodRef4
31 */
32
33public class MethodRef4 {
34
35    static interface A {Fee<String> m();}
36
37    static interface B {Fee<String> m(String s);}
38
39    static interface C {Object m();}
40
41    static class Fee<T> {
42
43        private T t;
44
45        public Fee() {
46            System.out.println("Fee<T> instantiated");
47        }
48
49        public Fee(T t) {
50            this.t = t;
51            System.out.println("Fee<T> instantiated: " + t);
52        }
53
54        public void make() {
55            System.out.println(this + ": make()");
56        }
57    }
58
59    private static void assertTrue(boolean cond) {
60        if (!cond)
61            throw new AssertionError();
62    }
63
64    public static void main(String[] args) {
65
66        A a = Fee<String>::new; //constructor reference to Fee<T>()
67        a.m().make();
68
69        B b = Fee<String>::new; //constructor reference to Fee<T>(String)
70        b.m("hi").make();
71
72        C c = MethodRef4::new; //constructor reference to MethodRef4()
73        assertTrue( c.m() instanceof MethodRef4 );
74        c = MethodRef4::new; //constructor reference to MethodRef4()
75        assertTrue( c.m() instanceof MethodRef4 );
76        c = Fee<String>::new; //constructor reference to Fee<T>()
77        assertTrue( c.m() instanceof Fee );
78    }
79}
80