1 /* 2 * Copyright (c) 2008, 2014, 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 import java.io.*; 25 import java.lang.annotation.Retention; 26 import java.lang.annotation.RetentionPolicy; 27 import java.net.URL; 28 import java.util.List; 29 30 import com.sun.tools.classfile.*; 31 32 /* 33 * @test NoTargetAnnotations 34 * @summary test that annotations with no Target meta type is emitted 35 * only once as declaration annotation 36 */ 37 public class NoTargetAnnotations { 38 39 public static void main(String[] args) throws Exception { 40 new NoTargetAnnotations().run(); 41 } 42 43 public void run() throws Exception { 44 ClassFile cf = getClassFile("NoTargetAnnotations$Test.class"); 45 for (Field f : cf.fields) { 46 test(cf, f); 47 testDeclaration(cf, f); 48 } 49 for (Method m: cf.methods) { 50 test(cf, m); 51 testDeclaration(cf, m); 52 } 53 54 countAnnotations(); 55 56 if (errors > 0) 57 throw new Exception(errors + " errors found"); 58 System.out.println("PASSED"); 59 } 60 61 ClassFile getClassFile(String name) throws IOException, ConstantPoolException { 62 URL url = getClass().getResource(name); 63 InputStream in = url.openStream(); 64 try { 65 return ClassFile.read(in); 66 } finally { 67 in.close(); 68 } 69 } 70 71 /************ Helper annotations counting methods ******************/ 72 void test(ClassFile cf, Method m) { 73 test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true); 74 test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false); 75 } 76 77 void test(ClassFile cf, Field m) { 78 test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true); 79 test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false); 80 } 81 82 void testDeclaration(ClassFile cf, Method m) { 83 testDecl(cf, m, Attribute.RuntimeVisibleAnnotations, true); 84 testDecl(cf, m, Attribute.RuntimeInvisibleAnnotations, false); 85 } 86 87 void testDeclaration(ClassFile cf, Field m) { 88 testDecl(cf, m, Attribute.RuntimeVisibleAnnotations, true); 89 testDecl(cf, m, Attribute.RuntimeInvisibleAnnotations, false); 90 } 91 92 // test the result of Attributes.getIndex according to expectations 93 // encoded in the method's name 94 void test(ClassFile cf, Method m, String name, boolean visible) { 95 int index = m.attributes.getIndex(cf.constant_pool, name); 96 if (index != -1) { 97 Attribute attr = m.attributes.get(index); 98 assert attr instanceof RuntimeTypeAnnotations_attribute; 99 RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr; 100 all += tAttr.annotations.length; 101 if (visible) 102 visibles += tAttr.annotations.length; 103 else 104 invisibles += tAttr.annotations.length; 105 } 106 } 107 108 // test the result of Attributes.getIndex according to expectations 109 // encoded in the method's name 110 void test(ClassFile cf, Field m, String name, boolean visible) { 111 int index = m.attributes.getIndex(cf.constant_pool, name); 112 if (index != -1) { 113 Attribute attr = m.attributes.get(index); 114 assert attr instanceof RuntimeTypeAnnotations_attribute; 115 RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr; 116 all += tAttr.annotations.length; 117 if (visible) 118 visibles += tAttr.annotations.length; 119 else 120 invisibles += tAttr.annotations.length; 121 } 122 } 123 124 // test the result of Attributes.getIndex according to expectations 125 // encoded in the method's name 126 void testDecl(ClassFile cf, Method m, String name, boolean visible) { 127 int index = m.attributes.getIndex(cf.constant_pool, name); 128 if (index != -1) { 129 Attribute attr = m.attributes.get(index); 130 assert attr instanceof RuntimeAnnotations_attribute; 131 RuntimeAnnotations_attribute tAttr = (RuntimeAnnotations_attribute)attr; 132 this.declAnnotations += tAttr.annotations.length; 133 } 134 } 135 136 // test the result of Attributes.getIndex according to expectations 137 // encoded in the method's name 138 void testDecl(ClassFile cf, Field m, String name, boolean visible) { 139 int index = m.attributes.getIndex(cf.constant_pool, name); 140 if (index != -1) { 141 Attribute attr = m.attributes.get(index); 142 assert attr instanceof RuntimeAnnotations_attribute; 143 RuntimeAnnotations_attribute tAttr = (RuntimeAnnotations_attribute)attr; 144 this.declAnnotations += tAttr.annotations.length; 145 } 146 } 147 148 File compileTestFile(File f) { 149 int rc = com.sun.tools.javac.Main.compile(new String[] { "-XDTA:writer", "-g", f.getPath() }); 150 if (rc != 0) 151 throw new Error("compilation failed. rc=" + rc); 152 String path = f.getPath(); 153 return new File(path.substring(0, path.length() - 5) + ".class"); 154 } 155 156 void countAnnotations() { 157 int expected_all = expected_visibles + expected_invisibles; 158 159 if (expected_all != all) { 160 errors++; 161 System.err.println("expected " + expected_all 162 + " annotations but found " + all); 163 } 164 165 if (expected_visibles != visibles) { 166 errors++; 167 System.err.println("expected " + expected_visibles 168 + " visibles annotations but found " + visibles); 169 } 170 171 if (expected_invisibles != invisibles) { 172 errors++; 173 System.err.println("expected " + expected_invisibles 174 + " invisibles annotations but found " + invisibles); 175 } 176 177 if (expected_decl != declAnnotations) { 178 errors++; 179 System.err.println("expected " + expected_decl 180 + " declaration annotations but found " + declAnnotations); 181 } 182 } 183 184 int errors; 185 int all; 186 int visibles; 187 int invisibles; 188 189 int declAnnotations; 190 191 /*********************** Test class *************************/ 192 static int expected_invisibles = 0; 193 static int expected_visibles = 0; 194 static int expected_decl = 1; 195 196 static class Test { 197 @Retention(RetentionPolicy.RUNTIME) 198 @interface A {} 199 200 @A String method() { 201 return null; 202 } 203 } 204 }