/*
 * Copyright (c) 2016, SAP SE 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
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 * questions.
 */

/*
 * @test
 * @bug 8159611
 * @summary The elimination of System.arraycopy by EscapeAnalysis prevents
 *          an IndexOutOfBoundsException from being thrown if the arraycopy
 *          is called with a negative length argument.
 *
 * @run main/othervm -XX:-UseOnStackReplacement compiler.escapeAnalysis.TestArrayCopy 1
 * @run main/othervm -XX:-UseOnStackReplacement compiler.escapeAnalysis.TestArrayCopy 0
 * @run main/othervm -XX:-UseOnStackReplacement compiler.escapeAnalysis.TestArrayCopy -1
 * @run main/othervm -XX:-UseOnStackReplacement compiler.escapeAnalysis.TestArrayCopy -2
 * @author Martin Doerr
 */

package compiler.escapeAnalysis;

public class TestArrayCopy {

    public static boolean do_test(int length) {
        try {
            System.arraycopy(new Object[1], 1, new Object[1], 1, length);
            return false;
        } catch (IndexOutOfBoundsException e) {
            return true;
        }
    }

    static final int COUNT = 100_000;

    public static void main(String args[]){
        int length = args.length > 0 ? Integer.parseInt(args[0]) : -1;
        for (int x = 0; x < COUNT; x++) {
            if (!do_test(length) && length != 0)
                throw new RuntimeException("Expected IndexOutOfBoundsException for System.arracopy(.., " + length + ")");
        }
    }
}