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.ElementType;
26
27 import com.sun.tools.classfile.*;
28
29 /*
30 * @test Presence
31 * @bug 6843077
32 * @summary test that all type annotations are present in the classfile
33 */
34
35 public class Presence {
36 public static void main(String[] args) throws Exception {
37 new Presence().run();
38 }
39
40 public void run() throws Exception {
41 File javaFile = writeTestFile();
42 File classFile = compileTestFile(javaFile);
43
44 ClassFile cf = ClassFile.read(classFile);
45 test(cf);
46 for (Field f : cf.fields) {
47 test(cf, f);
48 }
49 for (Method m: cf.methods) {
50 test(cf, m);
51 }
52
53 countAnnotations();
54
55 if (errors > 0)
56 throw new Exception(errors + " errors found");
57 System.out.println("PASSED");
58 }
59
60 void test(ClassFile cf) {
61 test(cf, Attribute.RuntimeVisibleTypeAnnotations, true);
62 test(cf, Attribute.RuntimeInvisibleTypeAnnotations, false);
63 }
64
65 void test(ClassFile cf, Method m) {
66 test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
67 test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
68 }
69
70 void test(ClassFile cf, Field m) {
71 test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
72 test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
73 }
74
75 // test the result of Attributes.getIndex according to expectations
76 // encoded in the method's name
77 void test(ClassFile cf, String name, boolean visible) {
78 int index = cf.attributes.getIndex(cf.constant_pool, name);
79 if (index != -1) {
80 Attribute attr = cf.attributes.get(index);
81 assert attr instanceof RuntimeTypeAnnotations_attribute;
82 RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
83 all += tAttr.annotations.length;
84 if (visible)
85 visibles += tAttr.annotations.length;
86 else
87 invisibles += tAttr.annotations.length;
88 }
89 }
90
91 // test the result of Attributes.getIndex according to expectations
92 // encoded in the method's name
93 void test(ClassFile cf, Method m, String name, boolean visible) {
94 Attribute attr = null;
95 Code_attribute cAttr = null;
96 RuntimeTypeAnnotations_attribute tAttr = null;
97
98 // collect annotations attributes on method
99 int index = m.attributes.getIndex(cf.constant_pool, name);
100 if (index != -1) {
101 attr = m.attributes.get(index);
102 assert attr instanceof RuntimeTypeAnnotations_attribute;
103 tAttr = (RuntimeTypeAnnotations_attribute)attr;
104 all += tAttr.annotations.length;
105 if (visible)
106 visibles += tAttr.annotations.length;
107 else
108 invisibles += tAttr.annotations.length;
109 }
110 // collect annotations from method's code attribute
111 index = m.attributes.getIndex(cf.constant_pool, Attribute.Code);
112 if(index!= -1) {
113 attr = m.attributes.get(index);
114 assert attr instanceof Code_attribute;
115 cAttr = (Code_attribute)attr;
116 index = cAttr.attributes.getIndex(cf.constant_pool, name);
117 if(index!= -1) {
118 attr = cAttr.attributes.get(index);
119 assert attr instanceof RuntimeTypeAnnotations_attribute;
120 tAttr = (RuntimeTypeAnnotations_attribute)attr;
121 all += tAttr.annotations.length;
122 if (visible)
123 visibles += tAttr.annotations.length;
124 else
125 invisibles += tAttr.annotations.length;
126 }
127 }
128 }
129
130 // test the result of Attributes.getIndex according to expectations
131 // encoded in the method's name
132 void test(ClassFile cf, Field m, String name, boolean visible) {
133 int index = m.attributes.getIndex(cf.constant_pool, name);
134 if (index != -1) {
135 Attribute attr = m.attributes.get(index);
136 assert attr instanceof RuntimeTypeAnnotations_attribute;
137 RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
138 all += tAttr.annotations.length;
139 if (visible)
140 visibles += tAttr.annotations.length;
141 else
142 invisibles += tAttr.annotations.length;
143 }
144 }
145
146 File writeTestFile() throws IOException {
147 File f = new File("TestPresence.java");
148 PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
149 out.println("import java.util.*;");
150 out.println("import java.lang.annotation.*;");
151
152 out.println("class TestPresence<@TestPresence.A T extends @TestPresence.A List<@TestPresence.A String>> { ");
153 out.println(" @Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER})");
154 out.println(" @interface A { }");
155
156 out.println(" Map<@A String, Map<@A String, @A String>> f1;");
157
158 out.println(" <@A TM extends @A List<@A String>>");
159 out.println(" Map<@A String, @A List<@A String>>");
160 out.println(" method(@A TestPresence<T> this, List<@A String> @A [] param1, String @A [] @A ... param2)");
161 out.println(" throws @A Exception {");
162 out.println(" @A String lc1 = null;");
163 out.println(" @A List<@A String> lc2 = null;");
164 out.println(" @A String @A [] [] @A[] lc3 = null;");
165 out.println(" List<? extends @A List<@A String>> lc4 = null;");
166 out.println(" Object lc5 = (@A List<@A String>) null;");
167 out.println(" boolean lc6 = lc1 instanceof @A String;");
168 out.println(" boolean lc7 = lc5 instanceof @A String @A [] @A [];");
169 out.println(" new @A ArrayList<@A String>();");
170 out.println(" Object lc8 = new @A String @A [4];");
171 out.println(" try {");
172 out.println(" Object lc10 = int.class;");
173 out.println(" } catch (@A Exception e) { e.toString(); }");
174 out.println(" return null;");
175 out.println(" }");
176 out.println(" void vararg1(String @A ... t) { } ");
177 out.println("}");
178 out.close();
179 return f;
180 }
181
182 File compileTestFile(File f) {
183 int rc = com.sun.tools.javac.Main.compile(new String[] {"-g", f.getPath() });
184 if (rc != 0)
185 throw new Error("compilation failed. rc=" + rc);
186 String path = f.getPath();
187 return new File(path.substring(0, path.length() - 5) + ".class");
188 }
189
190 void countAnnotations() {
191 int expected_visibles = 0, expected_invisibles = 38;
192 int expected_all = expected_visibles + expected_invisibles;
193
194 if (expected_all != all) {
195 errors++;
196 System.err.println("expected " + expected_all
197 + " annotations but found " + all);
198 }
199
200 if (expected_visibles != visibles) {
201 errors++;
202 System.err.println("expected " + expected_visibles
203 + " visibles annotations but found " + visibles);
204 }
205
206 if (expected_invisibles != invisibles) {
207 errors++;
208 System.err.println("expected " + expected_invisibles
209 + " invisibles annotations but found " + invisibles);
210 }
211
212 }
213
214 int errors;
215 int all;
216 int visibles;
217 int invisibles;
218 }