Mercurial > hg > truffle
annotate test/compiler/7116216/StackOverflow.java @ 11891:7b50d3841398
removed dead or unused code
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 03 Oct 2013 21:28:21 +0200 |
parents | b9a9ed0f8eeb |
children |
rev | line source |
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4743 | 1 /* |
6842
b9a9ed0f8eeb
7197424: update copyright year to match last edit in jdk8 hotspot repository
mikael
parents:
4778
diff
changeset
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2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. |
4743 | 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 7116216 | |
28 * @summary The vm crashes when GC happens during throwing a StackOverflow exception | |
29 * | |
30 * @run main/othervm -Xcomp -Xbatch StackOverflow | |
31 */ | |
32 | |
4778 | 33 public class StackOverflow { |
4743 | 34 static String stackOverflow_largeFrame_liveOopForGC; |
35 | |
36 public static int stackOverflow_largeFrame(int call_count, String liveOopForGC) { | |
37 try { | |
38 int return_count = stackOverflow_largeFrame(++call_count, liveOopForGC); | |
39 if (return_count == 0) { | |
40 try { | |
41 LargeFrame.method_with_many_locals(liveOopForGC, 2,3,4,5,6,7,liveOopForGC); | |
42 } catch (StackOverflowError e2) { | |
43 // access liveOopForGC to make it a live variable | |
44 stackOverflow_largeFrame_liveOopForGC = liveOopForGC; | |
45 } | |
46 } | |
47 return return_count - 1; | |
48 } catch (StackOverflowError e) { | |
49 // Return a value that is large enough such that no unrecoverable | |
50 // stack overflow will occur afterwards, but that is small enough | |
51 // such that calling LargeFrame.method_with_many_locals() will | |
52 // cause a StackOverflowError. | |
53 // Don't use a call here because we're out of stack space anyway! | |
54 int tmp = call_count / 2; | |
55 return (tmp < 100 ? tmp : 100); | |
56 } | |
57 } | |
58 public static void main(String args[]) { | |
59 LargeFrame.method_with_many_locals(new Object(), 2,3,4,5,6,7,new Object()); | |
60 | |
61 stackOverflow_largeFrame(0, "this is a live oop to test GC"); | |
62 System.out.println("finished ok!"); | |
63 } | |
64 } |