hotspot虚拟机源码
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/*
* Copyright (c) 2009, 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 6769124
* @summary arraycopy may crash the VM with c1 on 64 bit
*/
public class TestArrayCopy6769124 {
public static void main(String[] args) {
int k = 1 << 31;
for(int j = 0; j <1000000; j++) {
int i = -1;
while(i < 10) {
i++;
}
int m = k * i;
int[] O1 = new int[20];
int[] O2 = new int[20];
System.arraycopy(O1, i, O2, i, 1); //will crash on amd64
System.arraycopy(O1, m, O2, m, 1); //will crash on sparcv9
}
}
}