jdk

Форк
0
/
GetObjectSizeOverflowAgent.java 
43 строки · 1.7 Кб
1
/*
2
 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4
 *
5
 * This code is free software; you can redistribute it and/or modify it
6
 * under the terms of the GNU General Public License version 2 only, as
7
 * published by the Free Software Foundation.
8
 *
9
 * This code is distributed in the hope that it will be useful, but WITHOUT
10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12
 * version 2 for more details (a copy is included in the LICENSE file that
13
 * accompanied this code).
14
 *
15
 * You should have received a copy of the GNU General Public License version
16
 * 2 along with this work; if not, write to the Free Software Foundation,
17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18
 *
19
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20
 * or visit www.oracle.com if you need additional information or have any
21
 * questions.
22
 */
23
import java.lang.instrument.*;
24

25
public class GetObjectSizeOverflowAgent {
26

27
    static Instrumentation instrumentation;
28

29
    public static void premain(String agentArgs, Instrumentation instrumentation) {
30
        GetObjectSizeOverflowAgent.instrumentation = instrumentation;
31
    }
32

33
    public static void main(String[] args) throws Exception {
34
        int[] a = new int[600_000_000];
35
        long size = instrumentation.getObjectSize(a);
36

37
        if (size < 2_400_000_000L) {
38
            throw new RuntimeException("Invalid size of array, expected >= 2400000000, got " + size);
39
        }
40

41
        System.out.println("GetObjectSizeOverflow passed");
42
    }
43
}
44

Использование cookies

Мы используем файлы cookie в соответствии с Политикой конфиденциальности и Политикой использования cookies.

Нажимая кнопку «Принимаю», Вы даете АО «СберТех» согласие на обработку Ваших персональных данных в целях совершенствования нашего веб-сайта и Сервиса GitVerse, а также повышения удобства их использования.

Запретить использование cookies Вы можете самостоятельно в настройках Вашего браузера.