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 com.sun.tools.classfile.*;
26
27 /*
28 * @test JSR175Annotations
29 * @bug 6843077
30 * @summary test that only type annotations are recorded as such in classfile
31 * @modules jdk.compiler/com.sun.tools.classfile
32 */
33
34 public class JSR175Annotations {
35 public static void main(String[] args) throws Exception {
36 new JSR175Annotations().run();
37 }
38
39 public void run() throws Exception {
40 File javaFile = writeTestFile();
41 File classFile = compileTestFile(javaFile);
42
43 ClassFile cf = ClassFile.read(classFile);
44 for (Field f : cf.fields) {
45 test(cf, f);
46 }
47 for (Method m: cf.methods) {
48 test(cf, m);
49 }
50
51 countAnnotations();
52
53 if (errors > 0)
54 throw new Exception(errors + " errors found");
55 System.out.println("PASSED");
56 }
57
58 void test(ClassFile cf, Method m) {
59 test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
60 test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
61 }
62
63 void test(ClassFile cf, Field m) {
64 test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
65 test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
66 }
67
68 // test the result of Attributes.getIndex according to expectations
69 // encoded in the method's name
70 void test(ClassFile cf, Method m, String name, boolean visible) {
71 int index = m.attributes.getIndex(cf.constant_pool, name);
72 if (index != -1) {
73 Attribute attr = m.attributes.get(index);
74 assert attr instanceof RuntimeTypeAnnotations_attribute;
75 RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
76 all += tAttr.annotations.length;
77 if (visible)
78 visibles += tAttr.annotations.length;
79 else
80 invisibles += tAttr.annotations.length;
81 }
82 }
83
84 // test the result of Attributes.getIndex according to expectations
85 // encoded in the method's name
86 void test(ClassFile cf, Field m, String name, boolean visible) {
87 int index = m.attributes.getIndex(cf.constant_pool, name);
88 if (index != -1) {
89 Attribute attr = m.attributes.get(index);
90 assert attr instanceof RuntimeTypeAnnotations_attribute;
91 RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
92 all += tAttr.annotations.length;
93 if (visible)
94 visibles += tAttr.annotations.length;
95 else
96 invisibles += tAttr.annotations.length;
97 }
98 }
99
100 File writeTestFile() throws IOException {
101 File f = new File("Test.java");
102 PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
103 out.println("import java.lang.annotation.*;");
104 out.println("abstract class Test { ");
105 out.println(" @Target({ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER})");
106 out.println(" @Retention(RetentionPolicy.RUNTIME)");
107 out.println(" @interface A { }");
108 out.println(" @A String m;");
109 out.println(" @A String method(@A String a) {");
110 out.println(" return a;");
111 out.println(" }");
112 out.println("}");
113 out.close();
114 return f;
115 }
116
117 File compileTestFile(File f) {
118 int rc = com.sun.tools.javac.Main.compile(new String[] {"-g", f.getPath() });
119 if (rc != 0)
120 throw new Error("compilation failed. rc=" + rc);
121 String path = f.getPath();
122 return new File(path.substring(0, path.length() - 5) + ".class");
123 }
124
125 void countAnnotations() {
126 int expected_visibles = 0, expected_invisibles = 0;
127 int expected_all = expected_visibles + expected_invisibles;
128
129 if (expected_all != all) {
130 errors++;
131 System.err.println("expected " + expected_all
132 + " annotations but found " + all);
133 }
134
135 if (expected_visibles != visibles) {
136 errors++;
137 System.err.println("expected " + expected_visibles
138 + " visibles annotations but found " + visibles);
139 }
140
141 if (expected_invisibles != invisibles) {
142 errors++;
143 System.err.println("expected " + expected_invisibles
144 + " invisibles annotations but found " + invisibles);
145 }
146
147 }
148
149 int errors;
150 int all;
151 int visibles;
152 int invisibles;
153 }