Test6892265.java

/*
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 * 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.
 *
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 */

/**
 * @test
 * @bug 6892265
 * @summary System.arraycopy unable to reference elements beyond Integer.MAX_VALUE bytes
 *
 * @run main/othervm compiler.runtime.Test6892265
 */

package compiler.runtime;

public class Test6892265 {
    static final int NCOPY = 1;
    static final int OVERFLOW = 1;
    static int[] src2 = new int[NCOPY];
    static int[] dst2;

    static void test() {
        int N;
        int SIZE;

        N = Integer.MAX_VALUE / 4 + OVERFLOW;
        System.arraycopy(src2, 0, dst2, N, NCOPY);
        System.arraycopy(dst2, N, src2, 0, NCOPY);
    }

    public static void main(String[] args) {
        try {
            dst2 = new int[NCOPY + Integer.MAX_VALUE / 4 + OVERFLOW];
        } catch (OutOfMemoryError e) {
            System.exit(95); // Not enough memory
        }
        System.out.println("warmup");
        for (int i = 0; i < 11000; i++) {
            test();
        }
        System.out.println("start");
        for (int i = 0; i < 1000; i++) {
            test();
        }
        System.out.println("finish");
    }

}