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 8005042 27 * @summary Check behavior of Method.isDefault 28 * @author Joseph D. Darcy 29 */ 30 31 import java.lang.reflect.*; 32 import java.lang.annotation.*; 33 import java.util.*; 34 35 public class IsDefaultTest { 36 public static void main(String... argv) throws Exception { 37 int failures = 0; 38 int visitationCount = 0; 39 40 List<Class<?>> classList = new ArrayList<>(); 41 classList.add(TestType1.class); 42 classList.add(TestType2.class); 43 classList.add(TestType3.class); 44 classList.add(TestType4.class); 45 46 for(Class<?> clazz: classList) { 47 for(Method method: clazz.getDeclaredMethods()) { 48 ExpectedIsDefault expectedIsDefault = method.getAnnotation(ExpectedIsDefault.class); 49 if (expectedIsDefault != null) { 50 visitationCount++; 51 boolean expected = expectedIsDefault.value(); 52 boolean actual = method.isDefault(); 53 54 if (actual != expected) { 55 failures++; 56 System.err.printf("ERROR: On %s expected isDefualt of ''%s''; got ''%s''.\n", 57 method.toString(), expected, actual); 58 } 59 } 60 } 61 } 62 63 if (visitationCount == 0) { 64 System.err.println("Test failed because no methods checked."); 65 throw new RuntimeException(); 66 } 67 68 if (failures > 0) { 69 System.err.println("Test failed."); 70 throw new RuntimeException(); 71 } 72 } 73 } 74 75 interface TestType1 { 76 @ExpectedIsDefault(false) 77 void foo(); 78 79 @ExpectedIsDefault(true) 80 default void bar() {}; // Default method 81 } 82 83 class TestType2 { 84 @ExpectedIsDefault(false) 85 void bar() {}; 86 } 87 88 class TestType3 implements TestType1 { 89 @ExpectedIsDefault(false) 90 public void foo(){} 91 92 @ExpectedIsDefault(false) 93 @Override 94 public void bar() {}; 95 } 96 97 @interface TestType4 { 98 @ExpectedIsDefault(false) 99 String value(); 100 101 @ExpectedIsDefault(false) 102 String anotherValue() default ""; 103 } 104 105 @Retention(RetentionPolicy.RUNTIME) 106 @interface ExpectedIsDefault { 107 boolean value(); 108 }