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
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
|
/*
* Copyright 2006 The Android Open Source Project
*/
import java.lang.reflect.Array;
/**
* Test java.lang.reflect.Array.
*/
public class Main {
public static void main(String[] args) {
testSingleInt();
testSingleChar();
testSingleShort();
testSingleLong();
testSingle();
testMultiInt();
testMulti();
testAbstract();
System.out.println("ReflectArrayTest passed");
}
static void testSingleInt() {
Object intArray;
intArray = Array.newInstance(Integer.TYPE, 2);
int[] array = (int[]) intArray;
array[0] = 5;
Array.setInt(intArray, 1, 6);
if (Array.getInt(intArray, 0) != 5)
throw new RuntimeException();
if (array[1] != 6)
throw new RuntimeException();
try {
array[2] = 27;
throw new RuntimeException("store should have failed");
} catch (ArrayIndexOutOfBoundsException abe) { }
try {
Array.setInt(intArray, 2, 27);
throw new RuntimeException("store should have failed");
} catch (ArrayIndexOutOfBoundsException abe) { }
if (array.length != Array.getLength(intArray) ||
array.length != 2)
{
throw new RuntimeException("bad len");
}
Integer x123 = Integer.valueOf(123);
Integer x456 = Integer.valueOf(456);
Array.set(intArray, 0, x123);
Array.set(intArray, 1, x456);
if (!Array.get(intArray, 0).equals(x123) || !Array.get(intArray, 1).equals(x456)) {
throw new RuntimeException("bad 123 or 456");
}
int[][] wrongArray;
try {
wrongArray = (int[][]) intArray;
throw new RuntimeException("cast should have failed");
} catch (ClassCastException cce) { }
intArray = Array.newInstance(Integer.TYPE, 0);
if (Array.getLength(intArray) != 0)
throw new RuntimeException();
System.out.println("ReflectArrayTest.testSingleInt passed");
}
static void testSingleChar() {
Object charArray = Array.newInstance(Character.TYPE, 7);
char[] array = (char[]) charArray;
array[0] = '0';
array[1] = 'W';
array[2] = '2';
array[3] = '3';
array[4] = 'X';
array[5] = '5';
array[6] = '6';
Array.setChar(charArray, 1, '1');
Array.setChar(charArray, 4, '4');
try {
Array.setShort(charArray, 3, (short) 'Y');
throw new RuntimeException("shouldn't allow short in char array");
} catch (IllegalArgumentException iae) {}
try {
Array.setInt(charArray, 5, 'Z');
throw new RuntimeException("shouldn't allow int in char array");
} catch (IllegalArgumentException iae) {}
try {
for (int i = 0; i < array.length; i++) {
if (Array.getInt(charArray, i) - '0' != i) {
throw new RuntimeException("mismatch: " + i + " is " + array[i]);
}
}
if (Array.getInt(charArray, 4) != '4') {
throw new RuntimeException("load should have worked");
}
} catch (IllegalArgumentException iae) {
iae.printStackTrace(System.out);
}
try {
Array.getByte(charArray, 2);
throw new RuntimeException("shouldn't allow read of char as byte");
} catch (IllegalArgumentException iae) {}
Array.setChar(charArray, 3, (char) 0xffff);
try {
if (Array.getInt(charArray, 3) != 0xffff) {
throw new RuntimeException("char got sign-extended? "
+ Array.getInt(charArray, 3));
}
} catch (IllegalArgumentException iae) {
iae.printStackTrace(System.out);
}
System.out.println("ReflectArrayTest.testSingleChar passed");
}
static void testSingleShort() {
Object shortArray = Array.newInstance(Short.TYPE, 1);
Array.setShort(shortArray, 0, (short) -1);
if (Array.getInt(shortArray, 0) != -1) {
throw new RuntimeException("short didn't get sign-extended");
}
Short box = (Short) Array.get(shortArray, 0);
System.out.println("ReflectArrayTest.testSingleShort passed");
}
static void testSingleLong() {
Object longArray = Array.newInstance(Long.TYPE, 2);
Array.setInt(longArray, 0, 123);
Array.setLong(longArray, 1, 0x1122334455667788L);
try {
Array.getInt(longArray, 0);
throw new RuntimeException("shouldn't allow read of long as int");
} catch (IllegalArgumentException iae) {}
long[] array = (long[]) longArray;
if (array[0] != 123 || array[1] != 0x1122334455667788L) {
throw new RuntimeException();
}
float f = Array.getFloat(longArray, 0);
if (f < 122.9 || f > 123.1) {
throw new RuntimeException("long-as-float failed - " + f);
}
if (Array.getLong(longArray, 1) != 0x1122334455667788L) {
throw new RuntimeException("long1 failed");
}
System.out.println("ReflectArrayTest.testSingleLong passed");
}
static void testSingle() {
Object strArray;
strArray = Array.newInstance(String.class, 2);
String[] array = (String[]) strArray;
array[0] = "entry zero";
Array.set(strArray, 1, "entry one");
try {
Array.set(strArray, 2, "entry two");
throw new RuntimeException("store should have failed");
} catch (ArrayIndexOutOfBoundsException abe) { }
//System.out.println("array: " + array);
if (!"entry zero".equals(Array.get(strArray, 0)))
throw new RuntimeException();
if (!"entry one".equals(array[1]))
throw new RuntimeException();
if (array.length != Array.getLength(strArray) ||
array.length != 2)
{
throw new RuntimeException("bad len");
}
try {
Array.set(strArray, 0, new Integer(5));
throw new RuntimeException("store of Integer should have failed");
} catch (IllegalArgumentException iae) {}
System.out.println("ReflectArrayTest.testSingle passed");
}
static void testMultiInt() {
Object intIntIntArray;
int[] dimensions = { 3, 2, 1 };
intIntIntArray = Array.newInstance(Integer.TYPE, dimensions);
int[][][] array3 = (int[][][]) intIntIntArray;
array3[0][0][0] = 123; // trouble
array3[2][1][0] = 456;
try {
array3[2][1][1] = 768;
throw new RuntimeException("store should have failed");
}
catch (ArrayIndexOutOfBoundsException abe) {
}
System.out.println("ReflectArrayTest.testMultiInt passed");
}
static void testMulti() {
Object strStrStrArray;
int[] dimensions = { 1, 2, 3 };
strStrStrArray = Array.newInstance(String.class, dimensions);
String[][][] array3 = (String[][][]) strStrStrArray;
array3[0][0][0] = "zero zero zero";
array3[0][1][2] = "zero one two";
try {
array3[1][0][0] = "bad store";
throw new RuntimeException("store should have failed");
}
catch (ArrayIndexOutOfBoundsException abe) {
}
try {
String[][] array2 = (String[][]) strStrStrArray;
throw new RuntimeException("expecting bad cast");
}
catch (ClassCastException cce) {
}
String[] strar = new String[4];
strar[2] = "zero one two ++";
array3[0][1] = strar;
System.out.println(array3[0][1][2]);
//System.out.println("array3: " + array3);
int[] dimensions2 = { 1, 2 };
strStrStrArray = Array.newInstance(String[].class, dimensions2);
array3 = (String[][][]) strStrStrArray;
array3[0][1] = new String[3];
array3[0][1][2] = "zero one two";
try {
array3[1][0][0] = "bad store";
throw new RuntimeException("store should have failed");
}
catch (ArrayIndexOutOfBoundsException abe) {
}
System.out.println("ReflectArrayTest.testMulti passed");
}
static void testAbstract() {
Object arrayOfAbstractClasses = Array.newInstance(Number.class, 1);
System.out.println(arrayOfAbstractClasses.getClass().toString() + " modifiers: " +
arrayOfAbstractClasses.getClass().getModifiers());
arrayOfAbstractClasses = Array.newInstance(Cloneable.class, 1);
System.out.println(arrayOfAbstractClasses.getClass().toString() + " modifiers: " +
arrayOfAbstractClasses.getClass().getModifiers());
System.out.println("ReflectArrayTest.testAbstract passed");
}
}
|
