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comparison test/compiler/6892265/Test.java @ 1334:b5d78a3b8843

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6892265: System.arraycopy unable to reference elements beyond Integer.MAX_VALUE bytes Summary: Use size_t type cast to widen int values in typeArrayKlass::copy_array(). Reviewed-by: never, jcoomes
author kvn
date Thu, 03 Dec 2009 14:20:22 -0800
parents
children c18cbe5936b8
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1053:455105fc81d9 1334:b5d78a3b8843
1 /*
2 * Copyright 2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 /**
26 * @test
27 * @bug 6892265
28 * @summary System.arraycopy unable to reference elements beyond Integer.MAX_VALUE bytes
29 *
30 * @run main/othervm Test
31 */
32
33 public class Test {
34 static final int NCOPY = 1;
35 static final int OVERFLOW = 1;
36 static int[] src2 = new int[NCOPY];
37 static int[] dst2;
38
39 static void test() {
40 int N;
41 int SIZE;
42
43 N = Integer.MAX_VALUE/4 + OVERFLOW;
44 System.arraycopy(src2, 0, dst2, N, NCOPY);
45 System.arraycopy(dst2, N, src2, 0, NCOPY);
46 }
47
48 public static void main(String[] args) {
49 try {
50 dst2 = new int[NCOPY + Integer.MAX_VALUE/4 + OVERFLOW];
51 } catch (OutOfMemoryError e) {
52 System.exit(95); // Not enough memory
53 }
54 System.out.println("warmup");
55 for (int i=0; i <11000; i++) {
56 test();
57 }
58 System.out.println("start");
59 for (int i=0; i <1000; i++) {
60 test();
61 }
62 System.out.println("finish");
63 }
64
65 }