MethodReference34.java revision 1414:01c9d4161882 
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 *  check that code generation handles void-compatibility correctly
29 * @run main MethodReference34
30 */
31
32public class MethodReference34 {
33
34    static int assertionCount = 0;
35
36    static void assertTrue(boolean cond) {
37        assertionCount++;
38        if (!cond)
39            throw new AssertionError();
40    }
41
42    interface SAM_void<X> {
43        void m();
44    }
45
46    interface SAM_java_lang_Void<X> {
47        void m();
48    }
49
50    static void m_void() { assertTrue(true); }
51
52    static Void m_java_lang_Void() { assertTrue(true); return null; }
53
54    public static void main(String[] args) {
55        SAM_void s1 = MethodReference34::m_void;
56        s1.m();
57        SAM_java_lang_Void s2 = MethodReference34::m_void;
58        s2.m();
59        SAM_void s3 = MethodReference34::m_java_lang_Void;
60        s3.m();
61        SAM_java_lang_Void s4 = MethodReference34::m_java_lang_Void;
62        s4.m();
63        assertTrue(assertionCount == 4);
64    }
65}
66