annotate test/compiler/7002666/Test7002666.java @ 20304:a22acf6d7598

8048112: G1 Full GC needs to support the case when the very first region is not available Summary: Refactor preparation for compaction during Full GC so that it lazily initializes the first compaction point. This also avoids problems later when the first region may not be committed. Also reviewed by K. Barrett. Reviewed-by: brutisso
author tschatzl
date Mon, 21 Jul 2014 10:00:31 +0200
parents 4da76e32c0be
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2004
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
1 /*
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
2 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
4 *
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
7 * published by the Free Software Foundation.
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
8 *
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
13 * accompanied this code).
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
14 *
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
18 *
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
21 * questions.
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
22 *
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
23 */
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
24
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
25 /**
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
26 * @test
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
27 * @bug 7002666
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
28 * @summary eclipse CDT projects crash with compressed oops
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
29 *
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
30 * @run main/othervm -Xbatch -XX:CompileOnly=Test7002666.test,java/lang/reflect/Array Test7002666
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
31 *
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
32 * This will only reliably fail with a fastdebug build since it relies
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
33 * on seeing garbage in the heap to die. It could be made more
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
34 * reliable in product mode but that would require greatly increasing
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
35 * the runtime.
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
36 */
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
37
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
38 public class Test7002666 {
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
39 public static void main(String[] args) {
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
40 for (int i = 0; i < 25000; i++) {
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
41 Object[] a = test(Test7002666.class, new Test7002666());
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
42 if (a[0] != null) {
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
43 // The element should be null but if it's not then
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
44 // we've hit the bug. This will most likely crash but
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
45 // at least throw an exception.
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
46 System.err.println(a[0]);
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
47 throw new InternalError(a[0].toString());
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
48
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
49 }
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
50 }
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
51 }
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
52 public static Object[] test(Class c, Object o) {
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
53 // allocate an array small enough to be trigger the bug
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
54 Object[] a = (Object[])java.lang.reflect.Array.newInstance(c, 1);
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
55 return a;
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
56 }
4da76e32c0be 7002666: eclipse CDT projects crash with compressed oops
never
parents:
diff changeset
57 }