Mon, 03 May 2010 17:12:59 -0700
6943289: Project Coin: Improved Exception Handling for Java (aka 'multicatch')
Reviewed-by: jjg, darcy
1 /*
2 * Copyright 2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 */
24 import java.io.*;
25 import com.sun.tools.classfile.*;
27 /*
28 * @test ArrayClassLiterals
29 * @bug 6863814
30 * @summary test that class literals array doesn't crash javap
31 */
33 public class ArrayClassLiterals {
34 public static void main(String[] args) throws Exception {
35 new ArrayClassLiterals().run();
36 }
38 public void run() throws Exception {
39 File javaFile = writeTestFile();
40 File classFile = compileTestFile(javaFile);
42 ClassFile cf = ClassFile.read(classFile);
43 test(cf);
44 for (Field f : cf.fields) {
45 test(cf, f);
46 }
47 for (Method m: cf.methods) {
48 test(cf, m);
49 }
51 countAnnotations();
53 if (errors > 0)
54 throw new Exception(errors + " errors found");
55 System.out.println("PASSED");
56 }
58 void test(ClassFile cf) {
59 test(cf, Attribute.RuntimeVisibleTypeAnnotations, true);
60 test(cf, Attribute.RuntimeInvisibleTypeAnnotations, false);
61 }
63 void test(ClassFile cf, Method m) {
64 test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
65 test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
66 }
68 void test(ClassFile cf, Field m) {
69 test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
70 test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
71 }
73 // test the result of Attributes.getIndex according to expectations
74 // encoded in the method's name
75 void test(ClassFile cf, String name, boolean visible) {
76 int index = cf.attributes.getIndex(cf.constant_pool, name);
77 if (index != -1) {
78 Attribute attr = cf.attributes.get(index);
79 assert attr instanceof RuntimeTypeAnnotations_attribute;
80 RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
81 all += tAttr.annotations.length;
82 if (visible)
83 visibles += tAttr.annotations.length;
84 else
85 invisibles += tAttr.annotations.length;
87 for (ExtendedAnnotation anno : tAttr.annotations)
88 anno.position.toString();
89 }
90 }
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;
106 for (ExtendedAnnotation anno : tAttr.annotations)
107 anno.position.toString();
108 }
109 }
111 // test the result of Attributes.getIndex according to expectations
112 // encoded in the method's name
113 void test(ClassFile cf, Field m, String name, boolean visible) {
114 int index = m.attributes.getIndex(cf.constant_pool, name);
115 if (index != -1) {
116 Attribute attr = m.attributes.get(index);
117 assert attr instanceof RuntimeTypeAnnotations_attribute;
118 RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
119 all += tAttr.annotations.length;
120 if (visible)
121 visibles += tAttr.annotations.length;
122 else
123 invisibles += tAttr.annotations.length;
125 for (ExtendedAnnotation anno : tAttr.annotations)
126 anno.position.toString();
127 }
128 }
130 File writeTestFile() throws IOException {
131 File f = new File("Testa.java");
132 PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
133 out.println("import java.util.*;");
134 out.println("class Testa { ");
135 out.println(" @interface A { }");
137 out.println(" void test() {");
138 out.println(" Object a = @A String.class;");
139 out.println(" Object b = @A String @A [] @A [].class;");
140 out.println(" }");
141 out.println("}");
143 out.close();
144 return f;
145 }
147 File compileTestFile(File f) {
148 int rc = com.sun.tools.javac.Main.compile(new String[] { "-source", "1.7", "-g", f.getPath() });
149 if (rc != 0)
150 throw new Error("compilation failed. rc=" + rc);
151 String path = f.getPath();
152 return new File(path.substring(0, path.length() - 5) + ".class");
153 }
155 void countAnnotations() {
156 int expected_visibles = 0, expected_invisibles = 4;
157 int expected_all = expected_visibles + expected_invisibles;
159 if (expected_all != all) {
160 errors++;
161 System.err.println("expected " + expected_all
162 + " annotations but found " + all);
163 }
165 if (expected_visibles != visibles) {
166 errors++;
167 System.err.println("expected " + expected_visibles
168 + " visibles annotations but found " + visibles);
169 }
171 if (expected_invisibles != invisibles) {
172 errors++;
173 System.err.println("expected " + expected_invisibles
174 + " invisibles annotations but found " + invisibles);
175 }
177 }
179 int errors;
180 int all;
181 int visibles;
182 int invisibles;
183 }