Mercurial > hg > truffle
diff 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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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/runtime/testlibrary/ClassUnloadCommon.java Tue May 07 21:36:59 2013 +0200 @@ -0,0 +1,68 @@ +/* + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +import java.io.File; +import java.net.MalformedURLException; +import java.net.URL; +import java.net.URLClassLoader; +import java.nio.file.Paths; +import java.util.ArrayList; + +public class ClassUnloadCommon { + public static class TestFailure extends RuntimeException { + TestFailure(String msg) { + super(msg); + } + } + + public static void failIf(boolean value, String msg) { + if (value) throw new TestFailure("Test failed: " + msg); + } + + private static volatile Object dummy = null; + private static void allocateMemory(int kilobytes) { + ArrayList<byte[]> l = new ArrayList<>(); + dummy = l; + for (int i = kilobytes; i > 0; i -= 1) { + l.add(new byte[1024]); + } + l = null; + dummy = null; + } + + public static void triggerUnloading() { + allocateMemory(16 * 1024); // yg size is 8m with cms, force young collection + System.gc(); + } + + public static ClassLoader newClassLoader() { + try { + return new URLClassLoader(new URL[] { + Paths.get(System.getProperty("test.classes",".") + File.separatorChar + "classes").toUri().toURL(), + }, null); + } catch (MalformedURLException e){ + throw new RuntimeException("Unexpected URL conversion failure", e); + } + } + +}