1 /* 2 * Copyright (c) 2008, 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 24 import java.io.*; 25 import com.sun.tools.classfile.*; 26 27 /* 28 * @test Visibility 29 * @bug 6843077 30 * @summary test that type annotations are recorded in the classfile 31 */ 32 33 public class Visibility { 34 public static void main(String[] args) throws Exception { 35 new Visibility().run(); 36 } 37 38 public void run() throws Exception { 39 File javaFile = writeTestFile(); 40 File classFile = compileTestFile(javaFile); 41 42 ClassFile cf = ClassFile.read(classFile); 43 for (Method m: cf.methods) { 44 test(cf, m); 45 } 46 47 countAnnotations(); 48 49 if (errors > 0) 50 throw new Exception(errors + " errors found"); 51 System.out.println("PASSED"); 52 } 53 54 void test(ClassFile cf, Method m) { 55 test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true); 56 test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false); 57 } 58 59 // test the result of Attributes.getIndex according to expectations 60 // encoded in the method's name 61 void test(ClassFile cf, Method m, String name, boolean visible) { 62 int index = m.attributes.getIndex(cf.constant_pool, name); 63 if (index != -1) { 64 Attribute attr = m.attributes.get(index); 65 assert attr instanceof RuntimeTypeAnnotations_attribute; 66 RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr; 67 all += tAttr.annotations.length; 68 if (visible) 69 visibles += tAttr.annotations.length; 70 else 71 invisibles += tAttr.annotations.length; 72 } 73 } 74 75 File writeTestFile() throws IOException { 76 File f = new File("Test.java"); 77 PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f))); 78 out.println("import java.lang.annotation.ElementType;"); 79 out.println("import java.lang.annotation.Retention;"); 80 out.println("import java.lang.annotation.RetentionPolicy;"); 81 out.println("import java.lang.annotation.Target;"); 82 out.println("abstract class Test { "); 83 // visible annotations: RUNTIME 84 out.println(" @Retention(RetentionPolicy.RUNTIME)"); 85 out.println(" @Target(ElementType.TYPE_USE)"); 86 out.println(" @interface A { }"); 87 out.println(" void visible(@A Test this) { }"); 88 89 // invisible annotations: CLASS 90 out.println(" @Retention(RetentionPolicy.CLASS)"); 91 out.println(" @Target(ElementType.TYPE_USE)"); 92 out.println(" @interface B { }"); 93 out.println(" void invisible(@B Test this) { }"); 94 95 // source annotations 96 out.println(" @Retention(RetentionPolicy.SOURCE)"); 97 out.println(" @Target(ElementType.TYPE_USE)"); 98 out.println(" @interface C { }"); 99 out.println(" void source(@C Test this) { }"); 100 101 // default visibility: CLASS 102 out.println(" @Target(ElementType.TYPE_USE)"); 103 out.println(" @interface D { }"); 104 out.println(" void def(@D Test this) { }"); 105 out.println("}"); 106 out.close(); 107 return f; 108 } 109 110 File compileTestFile(File f) { 111 int rc = com.sun.tools.javac.Main.compile(new String[] { "-source", "1.8", "-g", f.getPath() }); 112 if (rc != 0) 113 throw new Error("compilation failed. rc=" + rc); 114 String path = f.getPath(); 115 return new File(path.substring(0, path.length() - 5) + ".class"); 116 } 117 118 void countAnnotations() { 119 int expected_all = 3, expected_visibles = 1, expected_invisibles = 2; 120 121 if (expected_all != all) { 122 errors++; 123 System.err.println("expected " + expected_all 124 + " annotations but found " + all); 125 } 126 127 if (expected_visibles != visibles) { 128 errors++; 129 System.err.println("expected " + expected_visibles 130 + " visibles annotations but found " + visibles); 131 } 132 133 if (expected_invisibles != invisibles) { 134 errors++; 135 System.err.println("expected " + expected_invisibles 136 + " invisibles annotations but found " + invisibles); 137 } 138 139 } 140 141 int errors; 142 int all; 143 int visibles; 144 int invisibles; 145 }