HugeToString.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).
 *
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 * 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 8225397
 * @summary Integer value miscalculation in toString() method of BitSet
 * @run main/othervm -Xms250m HugeToString
 */

import java.util.BitSet;

public final class HugeToString {

    public static void main(String[] args) {
        BitSet bs = new BitSet(500_000_000);
        bs.flip(0, 500_000_000);
        try {
            bs.toString();
        } catch (OutOfMemoryError expected) {
        } catch (Throwable t) {
            throw new AssertionError("Unexpected exception", t);
        }
    }
}