Mercurial > jdk8-mips64-public > hotspot / annotate
test/runtime/testlibrary/ClassUnloadCommon.java@1cdbd42c3e49 (annotated)
test/runtime/testlibrary/ClassUnloadCommon.java
Thu, 16 May 2013 12:14:19 -0700
- author
- katleman
- date
- Thu, 16 May 2013 12:14:19 -0700
- changeset 5082
- 1cdbd42c3e49
- parent 0
- f90c822e73f8
- permissions
- -rw-r--r--
Added tag jdk8-b90 for changeset 1ae0472ff3a0
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | */ |
| aoqi@0 | 23 | |
| aoqi@0 | 24 | import java.io.File; |
| aoqi@0 | 25 | import java.net.MalformedURLException; |
| aoqi@0 | 26 | import java.net.URL; |
| aoqi@0 | 27 | import java.net.URLClassLoader; |
| aoqi@0 | 28 | import java.nio.file.Paths; |
| aoqi@0 | 29 | import java.util.ArrayList; |
| aoqi@0 | 30 | |
| aoqi@0 | 31 | public class ClassUnloadCommon { |
| aoqi@0 | 32 | public static class TestFailure extends RuntimeException { |
| aoqi@0 | 33 | TestFailure(String msg) { |
| aoqi@0 | 34 | super(msg); |
| aoqi@0 | 35 | } |
| aoqi@0 | 36 | } |
| aoqi@0 | 37 | |
| aoqi@0 | 38 | public static void failIf(boolean value, String msg) { |
| aoqi@0 | 39 | if (value) throw new TestFailure("Test failed: " + msg); |
| aoqi@0 | 40 | } |
| aoqi@0 | 41 | |
| aoqi@0 | 42 | private static volatile Object dummy = null; |
| aoqi@0 | 43 | private static void allocateMemory(int kilobytes) { |
| aoqi@0 | 44 | ArrayList<byte[]> l = new ArrayList<>(); |
| aoqi@0 | 45 | dummy = l; |
| aoqi@0 | 46 | for (int i = kilobytes; i > 0; i -= 1) { |
| aoqi@0 | 47 | l.add(new byte[1024]); |
| aoqi@0 | 48 | } |
| aoqi@0 | 49 | l = null; |
| aoqi@0 | 50 | dummy = null; |
| aoqi@0 | 51 | } |
| aoqi@0 | 52 | |
| aoqi@0 | 53 | public static void triggerUnloading() { |
| aoqi@0 | 54 | allocateMemory(16 * 1024); // yg size is 8m with cms, force young collection |
| aoqi@0 | 55 | System.gc(); |
| aoqi@0 | 56 | } |
| aoqi@0 | 57 | |
| aoqi@0 | 58 | public static ClassLoader newClassLoader() { |
| aoqi@0 | 59 | try { |
| aoqi@0 | 60 | return new URLClassLoader(new URL[] { |
| aoqi@0 | 61 | Paths.get(System.getProperty("test.classes",".") + File.separatorChar + "classes").toUri().toURL(), |
| aoqi@0 | 62 | }, null); |
| aoqi@0 | 63 | } catch (MalformedURLException e){ |
| aoqi@0 | 64 | throw new RuntimeException("Unexpected URL conversion failure", e); |
| aoqi@0 | 65 | } |
| aoqi@0 | 66 | } |
| aoqi@0 | 67 | |
| aoqi@0 | 68 | } |
