Mercurial > hg > truffle
comparison test/runtime/8003720/Victim.java @ 7179:d0aa87f04bd5
8003720: NPG: Method in interpreter stack frame can be deallocated
Summary: Pass down a closure during root scanning to keep the class of the method alive.
Reviewed-by: coleenp, jcoomes
author | stefank |
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date | Tue, 27 Nov 2012 10:13:20 +0100 |
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7178:19c1bd641922 | 7179:d0aa87f04bd5 |
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1 /* | |
2 * Copyright (c) 2012, 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 public class Victim implements Test8003720.CallMe { | |
26 public void callme() { | |
27 // note: Victim.this is dead here | |
28 Test8003720.println("executing in loader=" + Victim.class.getClassLoader()); | |
29 | |
30 long now = System.currentTimeMillis(); | |
31 | |
32 while ((System.currentTimeMillis() - now) < Test8003720.DURATION) { | |
33 long count = VictimClassLoader.counter++; | |
34 if (count % 1000000 == 0) System.gc(); | |
35 if (count % 16180000 == 0) blurb(); | |
36 new Object[1].clone(); | |
37 } | |
38 } | |
39 static void blurb() { | |
40 Test8003720.println("count=" + VictimClassLoader.counter); | |
41 } | |
42 static { | |
43 blather(); | |
44 } | |
45 static void blather() { | |
46 new java.util.ArrayList<Object>(1000000); | |
47 Class<Victim> c = Victim.class; | |
48 Test8003720.println("initializing " + c + "#" + System.identityHashCode(c) + " in " + c.getClassLoader()); | |
49 } | |
50 } |