1 /*
 2  * Copyright (c) 2018, 2024, 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
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22  *
23  */
24 
25 //
26 // Help test archived box cache consistency.
27 //
28 // args[0]: the expected maximum value expected to be archived
29 //
30 public class CheckIntegerCacheApp {
31     public static void main(String[] args) throws Exception {
32         if (args.length != 1) {
33             throw new RuntimeException(
34                     "FAILED. Incorrect argument length: " + args.length);
35         }
36 
37         // Base JLS compliance check
38         for (int i = -128; i <= 127; i++) {
39             if (Integer.valueOf(i) != Integer.valueOf(i)) {
40                 throw new RuntimeException(
41                         "FAILED. All values in range [-128, 127] should be interned in cache: " + i);
42             }
43             if (Byte.valueOf((byte)i) != Byte.valueOf((byte)i)) {
44                 throw new RuntimeException(
45                         "FAILED. All Byte values in range [-128, 127] should be interned in cache: " + (byte)i);
46             }
47             if (Short.valueOf((short)i) != Short.valueOf((short)i)) {
48                 throw new RuntimeException(
49                         "FAILED. All Short values in range [-128, 127] should be interned in cache: " + (byte)i);
50             }
51             if (Long.valueOf(i) != Long.valueOf(i)) {
52                 throw new RuntimeException(
53                         "FAILED. All Long values in range [-128, 127] should be interned in cache: " + i);
54             }
55 
56             // Character cache only values 0 through 127
57             if (i >= 0) {
58                 if (Character.valueOf((char)i) != Character.valueOf((char)i)) {
59                     throw new RuntimeException(
60                             "FAILED. All Character values in range [0, 127] should be interned in cache: " + i);
61                 }
62             }
63         }
64 
65         // Check that archived integer cache agrees with runtime integer cache.
66         for (int i = -128; i <= 127; i++) {
67             if (ArchivedIntegerHolder.archivedObjects[i + 128] != Integer.valueOf(i)) {
68                 throw new RuntimeException(
69                         "FAILED. Archived and runtime caches disagree for " + i);
70             }
71         }
72 
73         int high = Integer.parseInt(args[0]);
74         if (Integer.valueOf(high) != Integer.valueOf(high)) {
75             throw new RuntimeException(
76                     "FAILED. Value expected to be retrieved from cache: " + high);
77         }
78 
79         if (Integer.valueOf(high + 1) == Integer.valueOf(high + 1)) {
80             throw new RuntimeException(
81                     "FAILED. Value not expected to be retrieved from cache: " + high);
82         }
83     }
84 }