1 /*
2 * Copyright (c) 2008, 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 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 * @modules jdk.jdeps/com.sun.tools.classfile
37 */
38 public class NoTargetAnnotations {
39
40 public static void main(String[] args) throws Exception {
41 new NoTargetAnnotations().run();
42 }
43
44 public void run() throws Exception {
45 ClassFile cf = getClassFile("NoTargetAnnotations$Test.class");
46 for (Field f : cf.fields) {
47 test(cf, f);
48 testDeclaration(cf, f);
49 }
50 for (Method m: cf.methods) {
51 test(cf, m);
52 testDeclaration(cf, m);
53 }
54
55 countAnnotations();
56
57 if (errors > 0)
58 throw new Exception(errors + " errors found");
59 System.out.println("PASSED");
60 }
61
62 ClassFile getClassFile(String name) throws IOException, ConstantPoolException {
63 URL url = getClass().getResource(name);
64 InputStream in = url.openStream();
65 try {
66 return ClassFile.read(in);
67 } finally {
68 in.close();
69 }
70 }
71
72 /************ Helper annotations counting methods ******************/
73 void test(ClassFile cf, Method m) {
74 test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
75 test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
76 }
77
78 void test(ClassFile cf, Field m) {
79 test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
80 test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
81 }
82
83 void testDeclaration(ClassFile cf, Method m) {
84 testDecl(cf, m, Attribute.RuntimeVisibleAnnotations, true);
85 testDecl(cf, m, Attribute.RuntimeInvisibleAnnotations, false);
86 }
87
88 void testDeclaration(ClassFile cf, Field m) {
89 testDecl(cf, m, Attribute.RuntimeVisibleAnnotations, true);
90 testDecl(cf, m, Attribute.RuntimeInvisibleAnnotations, false);
91 }
92
93 // test the result of Attributes.getIndex according to expectations
94 // encoded in the method's name
95 void test(ClassFile cf, Method m, String name, boolean visible) {
96 int index = m.attributes.getIndex(cf.constant_pool, name);
97 if (index != -1) {
98 Attribute attr = m.attributes.get(index);
99 assert attr instanceof RuntimeTypeAnnotations_attribute;
100 RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
101 all += tAttr.annotations.length;
102 if (visible)
103 visibles += tAttr.annotations.length;
104 else
105 invisibles += tAttr.annotations.length;
106 }
107 }
108
109 // test the result of Attributes.getIndex according to expectations
110 // encoded in the method's name
111 void test(ClassFile cf, Field m, String name, boolean visible) {
112 int index = m.attributes.getIndex(cf.constant_pool, name);
113 if (index != -1) {
114 Attribute attr = m.attributes.get(index);
115 assert attr instanceof RuntimeTypeAnnotations_attribute;
116 RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
117 all += tAttr.annotations.length;
118 if (visible)
119 visibles += tAttr.annotations.length;
120 else
121 invisibles += tAttr.annotations.length;
122 }
123 }
124
125 // test the result of Attributes.getIndex according to expectations
126 // encoded in the method's name
127 void testDecl(ClassFile cf, Method m, String name, boolean visible) {
128 int index = m.attributes.getIndex(cf.constant_pool, name);
129 if (index != -1) {
130 Attribute attr = m.attributes.get(index);
131 assert attr instanceof RuntimeAnnotations_attribute;
132 RuntimeAnnotations_attribute tAttr = (RuntimeAnnotations_attribute)attr;
133 this.declAnnotations += tAttr.annotations.length;
134 }
135 }
136
137 // test the result of Attributes.getIndex according to expectations
138 // encoded in the method's name
139 void testDecl(ClassFile cf, Field m, String name, boolean visible) {
140 int index = m.attributes.getIndex(cf.constant_pool, name);
141 if (index != -1) {
142 Attribute attr = m.attributes.get(index);
143 assert attr instanceof RuntimeAnnotations_attribute;
144 RuntimeAnnotations_attribute tAttr = (RuntimeAnnotations_attribute)attr;
145 this.declAnnotations += tAttr.annotations.length;
146 }
147 }
148
149 File compileTestFile(File f) {
150 int rc = com.sun.tools.javac.Main.compile(new String[] { "-XDTA:writer", "-g", f.getPath() });
151 if (rc != 0)
152 throw new Error("compilation failed. rc=" + rc);
153 String path = f.getPath();
154 return new File(path.substring(0, path.length() - 5) + ".class");
155 }
156
157 void countAnnotations() {
158 int expected_all = expected_visibles + expected_invisibles;
159
160 if (expected_all != all) {
161 errors++;
162 System.err.println("expected " + expected_all
163 + " annotations but found " + all);
164 }
165
166 if (expected_visibles != visibles) {
167 errors++;
168 System.err.println("expected " + expected_visibles
169 + " visibles annotations but found " + visibles);
170 }
171
172 if (expected_invisibles != invisibles) {
173 errors++;
174 System.err.println("expected " + expected_invisibles
175 + " invisibles annotations but found " + invisibles);
176 }
177
178 if (expected_decl != declAnnotations) {
179 errors++;
180 System.err.println("expected " + expected_decl
181 + " declaration annotations but found " + declAnnotations);
182 }
183 }
184
185 int errors;
186 int all;
187 int visibles;
188 int invisibles;
189
190 int declAnnotations;
191
192 /*********************** Test class *************************/
193 static int expected_invisibles = 0;
194 static int expected_visibles = 0;
195 static int expected_decl = 1;
196
197 static class Test {
198 @Retention(RetentionPolicy.RUNTIME)
199 @interface A {}
200
201 @A String method() {
202 return null;
203 }
204 }
205 }