0N/A/*
2362N/A * Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A/*
0N/A * @test
0N/A * @bug 4508780
0N/A * @summary Tests shared access to the Introspector cache
0N/A * @author Mark Davidson
0N/A */
0N/A
0N/Aimport java.beans.IntrospectionException;
0N/Aimport java.beans.Introspector;
0N/Aimport java.beans.PropertyDescriptor;
0N/A
0N/Aimport java.lang.reflect.Method;
0N/A
0N/A/**
0N/A * Multiple classloader test to ensure that methods
0N/A * returned by the BeanInfo classes are unique to the classloader.
0N/A */
0N/Apublic class Test4508780 implements Runnable {
0N/A /**
0N/A * This is here to force the bean classes to be compiled
0N/A */
0N/A private static final Class[] COMPILE = {
0N/A Bean.class,
0N/A Bean2.class,
0N/A Bean3.class,
0N/A Bean4.class,
0N/A };
0N/A
0N/A public static void main(String[] args) {
0N/A for (int i = 0; i < 10; i++) test();
0N/A }
0N/A
0N/A private static void test() {
0N/A test("Bean", "Bean2", "Bean3", "Bean4");
0N/A test("Bean4", "Bean", "Bean2", "Bean3");
0N/A test("Bean3", "Bean4", "Bean", "Bean2");
0N/A test("Bean2", "Bean3", "Bean4", "Bean");
0N/A Introspector.flushCaches();
0N/A }
0N/A
0N/A private static void test(String... names) {
0N/A new Thread(new Test4508780(names)).start();
0N/A }
0N/A
0N/A private final ClassLoader loader = new SimpleClassLoader();
0N/A private final String[] names;
0N/A
0N/A private Test4508780(String... names) {
0N/A this.names = names;
0N/A }
0N/A
0N/A public void run() {
0N/A for (String name : this.names) {
0N/A Object bean;
0N/A try {
0N/A bean = this.loader.loadClass(name).newInstance();
0N/A } catch (Exception exception) {
0N/A throw new Error("could not instantiate bean: " + name, exception);
0N/A }
0N/A if (this.loader != bean.getClass().getClassLoader()) {
0N/A throw new Error("bean class loader is not equal to default one");
0N/A }
0N/A PropertyDescriptor[] pds = getPropertyDescriptors(bean);
0N/A for (PropertyDescriptor pd : pds) {
0N/A Class type = pd.getPropertyType();
0N/A Method setter = pd.getWriteMethod();
0N/A Method getter = pd.getReadMethod();
0N/A
0N/A if (type.equals(String.class)) {
0N/A executeMethod(setter, bean, "Foo");
0N/A } else if (type.equals(int.class)) {
0N/A executeMethod(setter, bean, Integer.valueOf(1));
0N/A }
0N/A executeMethod(getter, bean);
0N/A }
0N/A }
0N/A }
0N/A
0N/A private static void executeMethod(Method method, Object bean, Object... args) {
0N/A if (method == null) {
0N/A throw new Error("method is null");
0N/A }
0N/A if (bean == null) {
0N/A throw new Error("target bean is null");
0N/A }
0N/A try {
0N/A method.invoke(bean, args);
0N/A } catch (Exception exception) {
0N/A throw new Error("could not execute method: " + method, exception);
0N/A }
0N/A }
0N/A
0N/A private static PropertyDescriptor[] getPropertyDescriptors(Object object) {
0N/A Class type = object.getClass();
0N/A synchronized (System.out) {
0N/A System.out.println(type);
0N/A ClassLoader loader = type.getClassLoader();
0N/A while (loader != null) {
0N/A System.out.println(" - loader: " + loader);
0N/A loader = loader.getParent();
0N/A }
0N/A }
0N/A try {
0N/A return Introspector.getBeanInfo(type).getPropertyDescriptors();
0N/A } catch (IntrospectionException exception) {
0N/A throw new Error("unexpected exception", exception);
0N/A }
0N/A }
0N/A}