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
|
/*
* Copyright (c) 2024, 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 8302850
* @summary Tests that an array clone call that has been compiled with C1
* handles null values correctly.
* @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation -XX:TieredStopAtLevel=1
* -XX:CompileOnly=compiler.c1.TestNullArrayClone::testClone* -XX:+UnlockExperimentalVMOptions
* compiler.c1.TestNullArrayClone
*/
package compiler.c1;
import java.util.concurrent.ThreadLocalRandom;
public class TestNullArrayClone {
static final int ITER = 2000; // ~ Tier3CompileThreshold
static final int ARRAY_SIZE = 999;
public static void main(String[] args) {
testInts();
testLongs();
testBytes();
}
private static void testInts() {
final int[] arr = new int[ARRAY_SIZE];
for (int i = 0; i < arr.length; i++) {
arr[i] = ThreadLocalRandom.current().nextInt();
}
for (int i = 0; i < ITER; i++) {
int[] result = testClonePrimitiveInt(arr);
if (result.length != arr.length) {
throw new RuntimeException("Unexpected clone length: source array length " + arr.length + " != clone array length " + result.length);
}
for (int j = 0; j < arr.length; j++) {
if (result[j] != arr[j]) {
throw new RuntimeException("Unexpected result: " + result[j] + " != " + j);
}
}
}
try {
testClonePrimitiveInt(null);
throw new RuntimeException("Expected NullPointerException to be thrown");
} catch (NullPointerException e) {
}
}
private static void testLongs() {
final long[] arr = new long[ARRAY_SIZE];
for (int i = 0; i < arr.length; i++) {
arr[i] = ThreadLocalRandom.current().nextLong();
}
for (int i = 0; i < ITER; i++) {
long[] result = testClonePrimitiveLong(arr);
if (result.length != arr.length) {
throw new RuntimeException("Unexpected clone length: source array length " + arr.length + " != clone array length " + result.length);
}
for (int j = 0; j < arr.length; j++) {
if (result[j] != arr[j]) {
throw new RuntimeException("Unexpected result: " + result[j] + " != " + j);
}
}
}
try {
testClonePrimitiveLong(null);
throw new RuntimeException("Expected NullPointerException to be thrown");
} catch (NullPointerException e) {
}
}
private static void testBytes() {
final byte[] arr = new byte[ARRAY_SIZE];
for (int i = 0; i < arr.length; i++) {
arr[i] = (byte) ThreadLocalRandom.current().nextInt();
}
for (int i = 0; i < ITER; i++) {
byte[] result = testClonePrimitiveBytes(arr);
if (result.length != arr.length) {
throw new RuntimeException("Unexpected clone length: source array length " + arr.length + " != clone array length " + result.length);
}
for (int j = 0; j < arr.length; j++) {
if (result[j] != arr[j]) {
throw new RuntimeException("Unexpected result: " + result[j] + " != " + j);
}
}
}
try {
testClonePrimitiveBytes(null);
throw new RuntimeException("Expected NullPointerException to be thrown");
} catch (NullPointerException e) {
}
}
static int[] testClonePrimitiveInt(int[] ints) {
return ints.clone();
}
static long[] testClonePrimitiveLong(long[] longs) {
return longs.clone();
}
static byte[] testClonePrimitiveBytes(byte[] bytes) {
return bytes.clone();
}
}
|
