diff -r 000000000000 -r 959103a6100f test/tools/javac/lambda/methodReference/MethodRef6.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/tools/javac/lambda/methodReference/MethodRef6.java Wed Apr 27 01:34:52 2016 +0800 @@ -0,0 +1,66 @@ +/* + * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/** + * @test + * @bug 8003280 + * @summary Add lambda tests + * Test that the most specific reference is selected when method parameters are elided + * @compile MethodRef6.java + * @run main MethodRef6 + */ + +public class MethodRef6 { + + static interface A { String make(Integer i); } + + static interface B { String make(Number i); } + + private static void assertTrue(boolean cond) { + if (!cond) + throw new AssertionError(); + } + + static String m(Object o) { + return "Object " + o; + } + + static String m(Number n) { + return "Number " + n; + } + + static String m(Integer i) { + return "Integer " + i; + } + + static String m(int i) { + return "int " + i; + } + + public static void main(String[] args) { + A a = MethodRef6::m; + assertTrue(a.make(1).equals("Integer 1"));//method parameter type inferred from SAM descriptor, boxing applied + B b = MethodRef6::m; + assertTrue(b.make(1).equals("Number 1"));//method parameter type inferred from SAM descriptor, boxing and widen applied + } +}