1 /*
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 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.  Oracle designates this
 8  * particular file as subject to the "Classpath" exception as provided
 9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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24  */
25 
26 /*
27  * @test
28  * @bug 8222402
29  * @summary LW2 array support in javac
30  * @run main/othervm ArrayRelationsTest
31  */
32 
33 public primitive class ArrayRelationsTest.val {
34 
35     int x = 42;
36 
37     public static void main(String [] args) {
38         ArrayRelationsTest [] la = new ArrayRelationsTest[10];
39         ArrayRelationsTest.val [] qa = new ArrayRelationsTest.val[10];
40         boolean cce = false;
41         try {
42             qa = (ArrayRelationsTest.val[]) (Object []) (new String [10]);
43         } catch (ClassCastException e) {
44             cce = true;
45         }
46         if (!cce) {
47             throw new AssertionError("Missing CCE");
48         }
49         la = qa;
50         ArrayRelationsTest.ref[] la2 = qa;
51         ArrayRelationsTest.val [] qa2 = (ArrayRelationsTest.val []) la2;
52         boolean npe = false;
53         try {
54             la2[0] = null;
55         } catch (NullPointerException e) {
56             npe = true;
57         }
58         if (!npe) {
59             throw new AssertionError("Missing NPE");
60         }
61         npe = false;
62         Object [] oa = qa;
63         try {
64             oa[0] = null;
65         } catch (NullPointerException e) {
66             npe = true;
67         }
68         if (!npe) {
69             throw new AssertionError("Missing NPE");
70         }
71 
72         // round trip;
73         Object o = oa = la = qa;
74         qa = (ArrayRelationsTest.val[]) (la = (ArrayRelationsTest.ref []) (oa = (Object []) o));
75         qa [0] = new ArrayRelationsTest();
76 
77         npe = false;
78         try {
79             la[0] = null;
80         } catch (NullPointerException e) {
81             npe = true;
82         }
83         if (!npe) {
84             throw new AssertionError("Missing NPE");
85         }
86 
87         la = new ArrayRelationsTest.ref [10];
88 
89         cce = false;
90         try {
91             qa = (ArrayRelationsTest.val[]) la;
92         } catch (ClassCastException c) {
93             cce = true;
94         }
95         if (!cce) {
96             throw new AssertionError("Unexpected CCE behavior");
97         }
98     }
99 }