1 /* 2 * Copyright (c) 2013, 2015, 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 6695379 27 * @summary Copy method annotations and parameter annotations to synthetic 28 * bridge methods 29 * @modules jdk.compiler/com.sun.tools.classfile 30 * jdk.compiler/com.sun.tools.javac.util 31 * @run main AnnotationsAreNotCopiedToBridgeMethodsTest 32 */ 33 34 import java.lang.annotation.ElementType; 35 import java.lang.annotation.Target; 36 import java.io.BufferedInputStream; 37 import java.lang.annotation.Retention; 38 import java.lang.annotation.RetentionPolicy; 39 import java.nio.file.Files; 40 import java.nio.file.Path; 41 import java.nio.file.Paths; 42 43 import com.sun.tools.classfile.AccessFlags; 44 import com.sun.tools.classfile.Attribute; 45 import com.sun.tools.classfile.Attributes; 46 import com.sun.tools.classfile.ClassFile; 47 import com.sun.tools.classfile.Method; 48 import com.sun.tools.javac.util.Assert; 49 50 public class AnnotationsAreNotCopiedToBridgeMethodsTest { 51 52 public static void main(String[] args) throws Exception { 53 new AnnotationsAreNotCopiedToBridgeMethodsTest().run(); 54 } 55 56 void run() throws Exception { 57 checkClassFile(Paths.get(System.getProperty("test.classes"), 58 this.getClass().getSimpleName() + "$CovariantReturnType.class")); 59 checkClassFile(Paths.get(System.getProperty("test.classes"), 60 this.getClass().getSimpleName() + 61 "$CovariantReturnType$VisibilityChange.class")); 62 } 63 64 void checkClassFile(final Path cfilePath) throws Exception { 65 ClassFile classFile = ClassFile.read( 66 new BufferedInputStream(Files.newInputStream(cfilePath))); 67 for (Method method : classFile.methods) { 68 if (method.access_flags.is(AccessFlags.ACC_BRIDGE)) { 69 checkForAttr(method.attributes, 70 "Annotations hasn't been copied to bridge method", 71 Attribute.RuntimeVisibleAnnotations, 72 Attribute.RuntimeVisibleParameterAnnotations); 73 } 74 } 75 } 76 77 void checkForAttr(Attributes attrs, String errorMsg, String... attrNames) { 78 for (String attrName : attrNames) { 79 Assert.checkNonNull(attrs.get(attrName), errorMsg); 80 } 81 } 82 83 @Target(value = {ElementType.PARAMETER}) 84 @Retention(RetentionPolicy.RUNTIME) 85 @interface ParamAnnotation {} 86 87 @Target(value = {ElementType.METHOD}) 88 @Retention(RetentionPolicy.RUNTIME) 89 @interface MethodAnnotation {} 90 91 abstract class T<A,B> { 92 B m(A a){return null;} 93 } 94 95 class CovariantReturnType extends T<Integer, Integer> { 96 @MethodAnnotation 97 Integer m(@ParamAnnotation Integer i) { 98 return i; 99 } 100 101 public class VisibilityChange extends CovariantReturnType {} 102 103 } 104 105 }