1/* 2 * Copyright (c) 2012, 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 creating an inner class from a lambda does add a captured this 29 * @run main LambdaExpr12 30 */ 31 32public class LambdaExpr12 { 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 Getter<X> { 43 X get(); 44 } 45 46 47 interface Mapper<X,Y> { 48 Y map(X x); 49 } 50 51 void test() { 52 Mapper<String, Getter<Character>> mapper = 53 (final String s) -> new Getter<Character>() { 54 @Override 55 public Character get() { 56 return s.charAt(0); 57 } 58 }; 59 assertTrue(mapper.map("First").get() == 'F'); 60 } 61 62 public static void main(String[] args) { 63 new LambdaExpr12().test(); 64 assertTrue(assertionCount == 1); 65 } 66} 67