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 package org.openjdk.tests.java.lang.invoke; 24 25 import org.testng.annotations.Test; 26 27 import java.io.Serializable; 28 import java.lang.invoke.SerializedLambda; 29 import java.lang.reflect.Method; 30 31 import static org.testng.Assert.fail; 32 33 /** 34 * Ensure that the $deserializeLambda$ method is present when it should be, and absent otherwise 35 */ 36 37 @Test(groups = { "serialization-hostile" }) 38 public class DeserializeMethodTest { assertDeserializeMethod(Class<?> clazz, boolean expectedPresent)39 private void assertDeserializeMethod(Class<?> clazz, boolean expectedPresent) { 40 try { 41 Method m = clazz.getDeclaredMethod("$deserializeLambda$", SerializedLambda.class); 42 if (!expectedPresent) 43 fail("Unexpected $deserializeLambda$ in " + clazz); 44 } 45 catch (NoSuchMethodException e) { 46 if (expectedPresent) 47 fail("Expected to find $deserializeLambda$ in " + clazz); 48 } 49 } 50 51 static class Empty {} 52 testEmptyClass()53 public void testEmptyClass() { 54 assertDeserializeMethod(Empty.class, false); 55 } 56 57 static class Cap1 { foo()58 void foo() { 59 Runnable r = (Runnable & Serializable) () -> { }; 60 } 61 } 62 testCapturingSerLambda()63 public void testCapturingSerLambda() { 64 assertDeserializeMethod(Cap1.class, true); 65 } 66 67 static class Cap2 { foo()68 void foo() { 69 Runnable r = () -> { }; 70 } 71 } 72 testCapturingNonSerLambda()73 public void testCapturingNonSerLambda() { 74 assertDeserializeMethod(Cap2.class, false); 75 } 76 77 interface Marker { } 78 static class Cap3 { foo()79 void foo() { 80 Runnable r = (Runnable & Marker) () -> { }; 81 } 82 } 83 testCapturingNonserIntersectionLambda()84 public void testCapturingNonserIntersectionLambda() { 85 assertDeserializeMethod(Cap3.class, false); 86 } 87 } 88