test/tools/javac/lambda/MethodReference27.java

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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 non-boxing method references conversion has the precedence
29 * @run main MethodReference27
30 */
31
32 public class MethodReference27 {
33
34 static void assertTrue(boolean cond) {
35 assertionCount++;
36 if (!cond)
37 throw new AssertionError();
38 }
39
40 static int assertionCount = 0;
41
42 interface SAM {
43 void m(int i1, int i2);
44 }
45
46 static void m1(int i1, int i2) { assertTrue(true); }
47 static void m1(Integer i1, int i2) { assertTrue(false); }
48 static void m1(int i1, Integer i2) { assertTrue(false); }
49 static void m1(Integer i1, Integer i2) { assertTrue(false); }
50 static void m1(Integer... is) { assertTrue(false); }
51
52 static void m2(int... is) { assertTrue(true); }
53 static void m2(double... ds) { assertTrue(false); }
54
55 public static void main(String[] args) {
56 SAM s1 = MethodReference27::m1;
57 s1.m(42,42);
58 SAM s2 = MethodReference27::m2;
59 s2.m(42,42);
60 assertTrue(assertionCount == 2);
61 }
62 }

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