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  * @run main/othervm TestMeetExactConstantArrays
  29  *
  30  */
  31 
  32 public class TestMeetExactConstantArrays {
  33     public abstract static class NumbersHolder {
  34         public Number[] getNumbers() {
  35             return null;
  36         }
  37     }
  38 
  39     public static class IntegersHolder extends NumbersHolder {
  40         private final static Integer integers[] = { new Integer(1) };
  41 
  42         public Number[] getNumbers() {
  43             return integers;
  44         }
  45     }
  46 
  47     public static class LongsHolder extends NumbersHolder {
  48         private final static Long longs[] = { new Long(1) };
  49 
  50         public Number[] getNumbers() {
  51             return longs;
  52         }
  53     }
  54 
  55     public static final void loopNumbers(NumbersHolder numbersHolder) {
  56         Number[] numbers = numbersHolder.getNumbers();
  57         for (int i = 0; i < numbers.length; i++) {
  58             numbers[i].longValue();
  59         }
  60     }
  61 
  62     public static void main(String[] args) throws Exception {
  63         for (int i = 0; i < 10000; i++) {
  64             IntegersHolder integersHolder = new IntegersHolder();
  65             LongsHolder longsHolder = new LongsHolder();
  66             loopNumbers(integersHolder);
  67             loopNumbers(longsHolder);
  68         }
  69     }
  70 }