Mercurial > hg > graal-jvmci-8
comparison test/runtime/testlibrary/ClassUnloadCommon.java @ 10230:33bcd9ead1d5
8009577: Test test/closed/runtime/classunload broken
Summary: Fixed tests to use new way of utilizing the WB API, fixed issue with where custom classloader got the classes from
Reviewed-by: collins, mgerdin, zgu
author | ctornqvi |
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date | Tue, 07 May 2013 21:36:59 +0200 |
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10229:f6a055fcf47d | 10230:33bcd9ead1d5 |
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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 import java.io.File; | |
25 import java.net.MalformedURLException; | |
26 import java.net.URL; | |
27 import java.net.URLClassLoader; | |
28 import java.nio.file.Paths; | |
29 import java.util.ArrayList; | |
30 | |
31 public class ClassUnloadCommon { | |
32 public static class TestFailure extends RuntimeException { | |
33 TestFailure(String msg) { | |
34 super(msg); | |
35 } | |
36 } | |
37 | |
38 public static void failIf(boolean value, String msg) { | |
39 if (value) throw new TestFailure("Test failed: " + msg); | |
40 } | |
41 | |
42 private static volatile Object dummy = null; | |
43 private static void allocateMemory(int kilobytes) { | |
44 ArrayList<byte[]> l = new ArrayList<>(); | |
45 dummy = l; | |
46 for (int i = kilobytes; i > 0; i -= 1) { | |
47 l.add(new byte[1024]); | |
48 } | |
49 l = null; | |
50 dummy = null; | |
51 } | |
52 | |
53 public static void triggerUnloading() { | |
54 allocateMemory(16 * 1024); // yg size is 8m with cms, force young collection | |
55 System.gc(); | |
56 } | |
57 | |
58 public static ClassLoader newClassLoader() { | |
59 try { | |
60 return new URLClassLoader(new URL[] { | |
61 Paths.get(System.getProperty("test.classes",".") + File.separatorChar + "classes").toUri().toURL(), | |
62 }, null); | |
63 } catch (MalformedURLException e){ | |
64 throw new RuntimeException("Unexpected URL conversion failure", e); | |
65 } | |
66 } | |
67 | |
68 } |