test/compiler/types/TestMeetExactConstantArrays.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * 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 8075587
 * @summary meet of 2 constant arrays result in bottom
 * @run main/othervm TestMeetExactConstantArrays
 *
 */

public class TestMeetExactConstantArrays {
    public abstract static class NumbersHolder {
        public Number[] getNumbers() {
            return null;
        }
    }

    public static class IntegersHolder extends NumbersHolder {
        private final static Integer integers[] = { new Integer(1) };

        public Number[] getNumbers() {
            return integers;
        }
    }

    public static class LongsHolder extends NumbersHolder {
        private final static Long longs[] = { new Long(1) };

        public Number[] getNumbers() {
            return longs;
        }
    }

    public static final void loopNumbers(NumbersHolder numbersHolder) {
        Number[] numbers = numbersHolder.getNumbers();
        for (int i = 0; i < numbers.length; i++) {
            numbers[i].longValue();
        }
    }

    public static void main(String[] args) throws Exception {
        for (int i = 0; i < 10000; i++) {
            IntegersHolder integersHolder = new IntegersHolder();
            LongsHolder longsHolder = new LongsHolder();
            loopNumbers(integersHolder);
            loopNumbers(longsHolder);
        }
    }
}