1 /* 2 * Copyright (c) 2012, 2013, 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 import org.testng.annotations.Test; 25 26 import java.util.function.Supplier; 27 28 /** 29 * TestInnerCtorRef 30 */ 31 // @Test 32 public class TestInnerCtorRef { 33 testCtorRef()34 public void testCtorRef() { 35 A<String> a = A.make(() -> ""); 36 } 37 } 38 39 abstract class A<T> { make()40 abstract T make(); 41 A()42 private A() { 43 } 44 45 public interface Foo<T> { } make(Supplier<T> factory)46 public static<T> A<T> make(Supplier<T> factory) { 47 class Local implements Foo<T> { 48 Supplier<T> f = factory; 49 } 50 return new Helper<T>(Local::new); 51 } 52 53 private static class Helper<T> extends A<T> { 54 Helper(Supplier<Foo<T>> factory)55 private Helper(Supplier<Foo<T>> factory) { 56 } 57 58 @Override make()59 T make() { 60 return null; 61 } 62 } 63 } 64