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
|
/*
* Copyright (c) 2011, 2018, 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
* @key stress gc
*
* @summary converted from VM Testbase gc/hashcode/HashCodeSimpleTest.
* VM Testbase keywords: [gc, stress, stressopt, nonconcurrent, jrockit]
* VM Testbase readme:
* DESCRIPTION
* Hash code regressiontests.
*
* COMMENTS
* This test was ported from JRockit test suite.
*
* @library /vmTestbase
* /test/lib
* @run driver jdk.test.lib.FileInstaller . .
* @run main/othervm -XX:-UseGCOverheadLimit gc.hashcode.HashCodeSimpleTest.HashCodeSimpleTest
*/
package gc.hashcode.HashCodeSimpleTest;
import nsk.share.TestFailure;
import nsk.share.gc.GC;
import nsk.share.gc.ThreadedGCTest;
/**
* Hash code regressiontests.
*/
public class HashCodeSimpleTest extends ThreadedGCTest {
@Override
protected Runnable createRunnable(int i) {
/**
* Test verifies that VM provided hashcodes are constant over invocations.
* @return success if the test passes
* failure if some hashvalue has changed
*/
return new Runnable() {
long counter = 0;
@Override
public void run() {
Object object = new Object();
int hashCode0 = object.hashCode();
for (int i = 0; i < 100; i++) {
int hashCode = object.hashCode();
if (hashCode != hashCode0) {
throw new TestFailure("Repeated hash code queries broken: "
+ hashCode0 + "!=" + hashCode);
}
}
if (counter++ % 1000000 == 0) {
log.info(counter / 1000000 + " million hashcodes verified");
}
}
};
}
public static void main(String args[]) {
GC.runTest(new HashCodeSimpleTest(), args);
}
}
|
