| /* |
| * Copyright (c) 2016, 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.beans.BeanInfo; |
| import java.beans.Introspector; |
| import java.beans.MethodDescriptor; |
| import java.io.File; |
| import java.net.URL; |
| import java.net.URLClassLoader; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.nio.file.StandardCopyOption; |
| import java.util.Arrays; |
| |
| /** |
| * @test |
| * @bug 8159696 |
| * @library /javax/swing/regtesthelpers |
| * @compile ./stub/Stub.java |
| * @run main/othervm -mx32M UnloadClassBeanInfo |
| */ |
| public class UnloadClassBeanInfo { |
| |
| private static URLClassLoader loader; |
| |
| public static void main(final String[] args) throws Exception { |
| Class cl = getStub(); |
| System.out.println("cl.getClassLoader() = " + cl.getClassLoader()); |
| final BeanInfo beanInfo = Introspector.getBeanInfo(cl, Object.class); |
| MethodDescriptor[] mds = beanInfo.getMethodDescriptors(); |
| System.out.println("mds = " + Arrays.toString(mds)); |
| loader.close(); |
| loader=null; |
| cl=null; |
| Util.generateOOME(); |
| mds = beanInfo.getMethodDescriptors(); |
| System.out.println("mds = " + Arrays.toString(mds)); |
| } |
| |
| /** |
| * The Stub class is compiled by jtreg, but we want to move it so it is not |
| * on the application classpath. We want to load it through a separate |
| * classloader. |
| */ |
| static Class<?> getStub() throws Exception { |
| final String testclasses = System.getProperty("test.classes"); |
| final File subdir = new File(testclasses, "stub"); |
| subdir.mkdir(); |
| |
| final Path src = Paths.get(testclasses, "Stub.class"); |
| final Path dest = subdir.toPath().resolve("Stub.class"); |
| Files.move(src, dest, StandardCopyOption.REPLACE_EXISTING); |
| |
| loader = new URLClassLoader(new URL[]{subdir.toURL()}); |
| return Class.forName("Stub", true, loader); |
| } |
| } |