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
|
/*
* Copyright (c) 2013, 2016, 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 6298888 6992705 8161500
* @summary Check Class.toGenericString()
* @author Joseph D. Darcy
*/
import java.lang.reflect.*;
import java.lang.annotation.*;
import java.util.*;
@ExpectedGenericString("public class GenericStringTest")
public class GenericStringTest {
public Map<String, Integer>[] mixed = null;
public Map<String, Integer>[][] mixed2 = null;
public static void main(String... args) throws ReflectiveOperationException {
int failures = 0;
String[][] nested = {{""}};
int[][] intArray = {{1}};
failures += checkToGenericString(int.class, "int");
failures += checkToGenericString(void.class, "void");
failures += checkToGenericString(args.getClass(), "java.lang.String[]");
failures += checkToGenericString(nested.getClass(), "java.lang.String[][]");
failures += checkToGenericString(intArray.getClass(), "int[][]");
failures += checkToGenericString(java.util.Map.class, "public abstract interface java.util.Map<K,V>");
Field f = GenericStringTest.class.getDeclaredField("mixed");
// The expected value includes "<K,V>" rather than
// "<...String,...Integer>" since the Class object rather than
// Type objects is being queried.
failures += checkToGenericString(f.getType(), "java.util.Map<K,V>[]");
f = GenericStringTest.class.getDeclaredField("mixed2");
failures += checkToGenericString(f.getType(), "java.util.Map<K,V>[][]");
for(Class<?> clazz : List.of(GenericStringTest.class,
AnInterface.class,
LocalMap.class,
AnEnum.class,
AnotherEnum.class)) {
failures += checkToGenericString(clazz, clazz.getAnnotation(ExpectedGenericString.class).value());
}
if (failures > 0) {
throw new RuntimeException();
}
}
private static int checkToGenericString(Class<?> clazz, String expected) {
String genericString = clazz.toGenericString();
if (!genericString.equals(expected)) {
System.err.printf("Unexpected Class.toGenericString output; expected '%s', got '%s'.%n",
expected,
genericString);
return 1;
} else
return 0;
}
}
@Retention(RetentionPolicy.RUNTIME)
@interface ExpectedGenericString {
String value();
}
@ExpectedGenericString("abstract interface AnInterface")
strictfp interface AnInterface {}
@ExpectedGenericString("abstract interface LocalMap<K,V>")
interface LocalMap<K,V> {}
@ExpectedGenericString("final enum AnEnum")
enum AnEnum {
FOO;
}
@ExpectedGenericString("enum AnotherEnum")
enum AnotherEnum {
BAR{};
}
|
