1 /* 2 * Copyright (c) 2014, 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 8044737 27 * @summary Lambda: NPE while obtaining method reference through lambda expression 28 * @compile MethodRefNewInnerInLambdaNPE2.java 29 */ 30 31 public class MethodRefNewInnerInLambdaNPE2 { 32 33 interface Constructor { execute()34 MyTest execute(); 35 } 36 37 class MyTest { MyTest()38 MyTest() { System.out.println("Constructor executed"); } 39 } 40 getConstructor()41 public Constructor getConstructor() { 42 return getConstructor(() -> { return MyTest::new; }); 43 } 44 main(String argv[])45 public static void main(String argv[]) { 46 MethodRefNewInnerInLambdaNPE2 t = new MethodRefNewInnerInLambdaNPE2(); 47 MyTest mytest = t.getConstructor().execute(); 48 } 49 getConstructor(Wrapper arg)50 Constructor getConstructor(Wrapper arg) { 51 return arg.unwrap(); 52 } 53 54 interface Wrapper { unwrap()55 Constructor unwrap(); 56 } 57 } 58