TestMeetExactConstantArrays.java revision 11707:ad7af1afda7a 
1/*
2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/*
25 * @test
26 * @bug 8075587
27 * @summary meet of 2 constant arrays result in bottom
28 *
29 * @run main/othervm compiler.types.TestMeetExactConstantArrays
30 */
31
32package compiler.types;
33
34public class TestMeetExactConstantArrays {
35    public abstract static class NumbersHolder {
36        public Number[] getNumbers() {
37            return null;
38        }
39    }
40
41    public static class IntegersHolder extends NumbersHolder {
42        private final static Integer integers[] = { new Integer(1) };
43
44        public Number[] getNumbers() {
45            return integers;
46        }
47    }
48
49    public static class LongsHolder extends NumbersHolder {
50        private final static Long longs[] = { new Long(1) };
51
52        public Number[] getNumbers() {
53            return longs;
54        }
55    }
56
57    public static final void loopNumbers(NumbersHolder numbersHolder) {
58        Number[] numbers = numbersHolder.getNumbers();
59        for (int i = 0; i < numbers.length; i++) {
60            numbers[i].longValue();
61        }
62    }
63
64    public static void main(String[] args) throws Exception {
65        for (int i = 0; i < 10000; i++) {
66            IntegersHolder integersHolder = new IntegersHolder();
67            LongsHolder longsHolder = new LongsHolder();
68            loopNumbers(integersHolder);
69            loopNumbers(longsHolder);
70        }
71    }
72}
73