Test7002666.java revision 11707:ad7af1afda7a 
1/*
2 * Copyright (c) 2010, 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/**
26 * @test
27 * @bug 7002666
28 * @summary eclipse CDT projects crash with compressed oops
29 *
30 * @run main/othervm -Xbatch
31 *      -XX:CompileCommand=compileonly,compiler.c2.Test7002666::test
32 *      -XX:CompileCommand=compileonly,java.lang.reflect.Array::*
33 *      compiler.c2.Test7002666
34 */
35
36package compiler.c2;
37/*
38 * This will only reliably fail with a fastdebug build since it relies
39 * on seeing garbage in the heap to die.  It could be made more
40 * reliable in product mode but that would require greatly increasing
41 * the runtime.
42 */
43
44public class Test7002666 {
45    public static void main(String[] args) {
46        for (int i = 0; i < 25000; i++) {
47            Object[] a = test(Test7002666.class, new Test7002666());
48            if (a[0] != null) {
49                // The element should be null but if it's not then
50                // we've hit the bug.  This will most likely crash but
51                // at least throw an exception.
52                System.err.println(a[0]);
53                throw new InternalError(a[0].toString());
54
55            }
56        }
57    }
58    public static Object[] test(Class c, Object o) {
59        // allocate an array small enough to be trigger the bug
60        Object[] a = (Object[])java.lang.reflect.Array.newInstance(c, 1);
61        return a;
62    }
63}
64