1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
/*
* Copyright (c) 2004, 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 4992173 4992170
* @library /test/lib
* @modules jdk.compiler
* @run testng/othervm EnclosingClassTest
* @summary Check getEnclosingClass and other methods
* @author Peter von der Ah\u00e9
*/
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.nio.file.Files;
import java.nio.file.Path;
import common.TestMe;
import jdk.test.lib.compiler.CompilerUtils;
import jdk.test.lib.util.FileUtils;
import org.testng.Assert;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
/*
* We have five kinds of classes:
* a) Top level classes
* b) Nested classes (static member classes)
* c) Inner classes (non-static member classes)
* d) Local classes (named classes declared within a method)
* e) Anonymous classes
*
* Each one can be within a package or not.
* Kinds b-e can/must be within kinds a-e.
* This gives us a three dimensional space:
* 1. dimension: b-e
* 2. dimension: a-e
* 3. dimension: packages
*
* We make a two dimensional matrix of (b-e)x(a-e) and change the
* package configuration on that:
*
* b c d e
* a x x x x
* b x x x x
* c o x x x where o means "not legal"
* d o x x x
* e o x x x
*/
public class EnclosingClassTest {
private static final String SRC_DIR = System.getProperty("test.src");
private static final Path ENCLOSING_CLASS_SRC = Path.of(SRC_DIR, "EnclosingClass.java");
private static final String GEN_SRC_DIR = "gensrc";
@BeforeClass
public void createEnclosingClasses() throws IOException {
Path pkg1Dir = Path.of(GEN_SRC_DIR, "pkg1");
Path pkg2Dir = Path.of(GEN_SRC_DIR, "pkg1", "pkg2");
Path pkg1File = pkg1Dir.resolve("EnclosingClass.java");
Path pkg2File = pkg2Dir.resolve("EnclosingClass.java");
if (!Files.notExists(pkg1Dir)) {
FileUtils.deleteFileTreeWithRetry(pkg1Dir);
}
Files.createDirectories(pkg2Dir);
createAndWriteEnclosingClasses(ENCLOSING_CLASS_SRC, pkg1File, "pkg1");
createAndWriteEnclosingClasses(ENCLOSING_CLASS_SRC, pkg2File, "pkg1.pkg2");
Assert.assertTrue(CompilerUtils.compile(ENCLOSING_CLASS_SRC, Path.of(System.getProperty("test.classes")),
"--source-path", SRC_DIR));
Assert.assertTrue(CompilerUtils.compile(pkg1File, Path.of(System.getProperty("test.classes")),
"-classpath", System.getProperty("test.class.path")));
Assert.assertTrue(CompilerUtils.compile(pkg2File, Path.of(System.getProperty("test.classes")),
"-classpath", System.getProperty("test.class.path")));
}
@Test
public void testEnclosingClasses() throws ClassNotFoundException, NoSuchMethodException, IllegalAccessException,
InvocationTargetException, InstantiationException {
test(Class.forName("EnclosingClass").getDeclaredConstructor().newInstance());
}
@Test
public void testEnclosingClassesInPackage() throws ClassNotFoundException, NoSuchMethodException,
IllegalAccessException, InvocationTargetException, InstantiationException {
test(Class.forName("pkg1.EnclosingClass").getDeclaredConstructor().newInstance());
}
@Test
public void testEnclosingClassesInNestedPackage() throws ClassNotFoundException, NoSuchMethodException,
IllegalAccessException, InvocationTargetException, InstantiationException {
test(Class.forName("pkg1.pkg2.EnclosingClass").getDeclaredConstructor().newInstance());
}
private void createAndWriteEnclosingClasses(Path source, Path target, String packageName) throws IOException {
String className = packageName + ".EnclosingClass";
try (BufferedReader br = new BufferedReader(new FileReader(source.toFile()));
PrintWriter bw = new PrintWriter(new FileWriter(target.toFile()))) {
String line;
while ((line = br.readLine()) != null) {
if (line.contains("canonical=\"EnclosingClass")) {
line = line.replaceAll("canonical=\"EnclosingClass", "canonical=\"" + className);
} else if (line.contains("\"class EnclosingClass")) {
line = line.replaceAll("\"class EnclosingClass", "\"class " + className);
} else if (line.contains("//package")) {
line = line.replaceAll("//package", "package " + packageName + ";");
}
bw.println(line);
}
}
}
private void info(Class<?> c, Class<?> encClass, String desc) {
if (!"".equals(desc)) {
System.out.println(desc + ":");
}
System.out.println(c);
System.out.println("\tis enclosed by:\t\t" + encClass);
System.out.println("\thas simple name:\t`" +
c.getSimpleName() + "'");
System.out.println("\thas canonical name:\t`" +
c.getCanonicalName() + "'");
}
private void match(String actual, String expected) {
Assert.assertTrue((actual == null && expected == null) || actual.equals(expected));
System.out.println("\t`" +
actual + "' matches expected `" +
expected + "'");
}
private void check(Class<?> c, Class<?> enc,
String encName, String encNameExpected,
String simpleName, String simpleNameExpected,
String canonicalName, String canonicalNameExpected) {
match(encName, encNameExpected);
match(simpleName, simpleNameExpected);
match(canonicalName, canonicalNameExpected);
}
private void testClass(Class<?> c, TestMe annotation, Field f) {
if (Void.class.equals(c))
return;
Class<?> encClass = c.getEnclosingClass();
c.getEnclosingMethod(); // make sure it does not crash
c.getEnclosingConstructor(); // make sure it does not crash
info(c, encClass, annotation.desc());
check(c, encClass,
""+encClass, annotation.encl(),
c.getSimpleName(), annotation.simple(),
c.getCanonicalName(),
annotation.hasCanonical() ? annotation.canonical() : null);
if (void.class.equals(c))
return;
Class<?> array = java.lang.reflect.Array.newInstance(c, 0).getClass();
check(array, array.getEnclosingClass(),
"", "",
array.getSimpleName(), annotation.simple()+"[]",
array.getCanonicalName(),
annotation.hasCanonical() ? annotation.canonical()+"[]" : null);
}
private void test(Object tests) {
for (Field f : tests.getClass().getFields()) {
TestMe annotation = f.getAnnotation(TestMe.class);
if (annotation != null) {
try {
testClass((Class<?>)f.get(tests), annotation, f);
} catch (AssertionError ex) {
System.err.println("Error in " +
tests.getClass().getName() +
"." + f.getName());
throw ex;
} catch (IllegalAccessException ex) {
ex.printStackTrace();
throw new RuntimeException(ex);
}
}
}
}
}
|
