Mercurial > hg > truffle
comparison test/compiler/profiling/unloadingconflict/TestProfileConflictClassUnloading.java @ 13080:6e1826d5c23e
8027572: assert(r != 0) failed: invalid
Summary: null classes should be expected in profiles with conflicts
Reviewed-by: kvn, iveresov
author | roland |
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date | Wed, 13 Nov 2013 13:45:50 +0100 |
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13079:924c32982a12 | 13080:6e1826d5c23e |
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1 /* | |
2 * Copyright (c) 2013, 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 * @test | |
26 * @bug 8027572 | |
27 * @summary class unloading resets profile, method compiled after the profile is first set and before class loading sets unknown bit with not recorded class | |
28 * @build B | |
29 * @run main/othervm -XX:TypeProfileLevel=222 -XX:-BackgroundCompilation TestProfileConflictClassUnloading | |
30 * | |
31 */ | |
32 | |
33 import java.net.MalformedURLException; | |
34 import java.net.URL; | |
35 import java.net.URLClassLoader; | |
36 import java.nio.file.Paths; | |
37 | |
38 public class TestProfileConflictClassUnloading { | |
39 static class A { | |
40 } | |
41 | |
42 | |
43 static void m1(Object o) { | |
44 } | |
45 | |
46 static void m2(Object o) { | |
47 m1(o); | |
48 } | |
49 | |
50 static void m3(A a, boolean do_call) { | |
51 if (!do_call) { | |
52 return; | |
53 } | |
54 m2(a); | |
55 } | |
56 | |
57 public static ClassLoader newClassLoader() { | |
58 try { | |
59 return new URLClassLoader(new URL[] { | |
60 Paths.get(System.getProperty("test.classes",".")).toUri().toURL(), | |
61 }, null); | |
62 } catch (MalformedURLException e){ | |
63 throw new RuntimeException("Unexpected URL conversion failure", e); | |
64 } | |
65 } | |
66 | |
67 public static void main(String[] args) throws Exception { | |
68 ClassLoader loader = newClassLoader(); | |
69 Object o = loader.loadClass("B").newInstance(); | |
70 // collect conflicting profiles | |
71 for (int i = 0; i < 5000; i++) { | |
72 m2(o); | |
73 } | |
74 // prepare for conflict | |
75 A a = new A(); | |
76 for (int i = 0; i < 5000; i++) { | |
77 m3(a, false); | |
78 } | |
79 // unload class in profile | |
80 o = null; | |
81 loader = null; | |
82 System.gc(); | |
83 // record the conflict | |
84 m3(a, true); | |
85 // trigger another GC | |
86 System.gc(); | |
87 } | |
88 } |