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comparison test/compiler/7002666/Test7002666.java @ 2004:4da76e32c0be

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7002666: eclipse CDT projects crash with compressed oops Reviewed-by: kvn, twisti
author never
date Wed, 01 Dec 2010 10:16:31 -0800
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2003:dbbf44db0107 2004:4da76e32c0be
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 -XX:CompileOnly=Test7002666.test,java/lang/reflect/Array Test7002666
31 *
32 * This will only reliably fail with a fastdebug build since it relies
33 * on seeing garbage in the heap to die. It could be made more
34 * reliable in product mode but that would require greatly increasing
35 * the runtime.
36 */
37
38 public class Test7002666 {
39 public static void main(String[] args) {
40 for (int i = 0; i < 25000; i++) {
41 Object[] a = test(Test7002666.class, new Test7002666());
42 if (a[0] != null) {
43 // The element should be null but if it's not then
44 // we've hit the bug. This will most likely crash but
45 // at least throw an exception.
46 System.err.println(a[0]);
47 throw new InternalError(a[0].toString());
48
49 }
50 }
51 }
52 public static Object[] test(Class c, Object o) {
53 // allocate an array small enough to be trigger the bug
54 Object[] a = (Object[])java.lang.reflect.Array.newInstance(c, 1);
55 return a;
56 }
57 }