1 /* 2 * Copyright (c) 2019, 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 public class BasicLambdaApp { 26 static boolean isRuntime; 27 public static void main(String[] args) { 28 isRuntime = (args.length == 1 && args[0].equals("run")) ? true : false; 29 testNonCapturingLambda(); 30 testCapturingLambda(); 31 } 32 33 static void testNonCapturingLambda() { 34 doit(() -> { 35 System.out.println("Hello from Lambda"); 36 LambdaVerification.verifyCallerIsArchivedLambda(isRuntime); 37 }); 38 } 39 40 static int lastX; 41 static void testCapturingLambda() { 42 lastX = -1; 43 for (int i=0; i<10; i++) { 44 final int x = i; 45 doit(() -> { 46 if (x != lastX + 1) { 47 throw new RuntimeException(x + " != " + (lastX + 1)); 48 } 49 lastX = x; 50 LambdaVerification.verifyCallerIsArchivedLambda(isRuntime); 51 }); 52 } 53 } 54 55 static void doit(Runnable t) { 56 t.run(); 57 } 58 }