| /* |
| * Copyright (c) 2012, 2015, 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. |
| */ |
| |
| /* |
| * @test |
| * @bug 7120365 |
| * @summary test on Concurrent Modification |
| * @author Shanliang JIANG |
| * @modules java.management.rmi |
| * @run main ConcurrentModificationTest |
| */ |
| |
| import java.net.MalformedURLException; |
| import java.util.ConcurrentModificationException; |
| import javax.management.MBeanServer; |
| import javax.management.MBeanServerConnection; |
| import javax.management.MBeanServerFactory; |
| import javax.management.Notification; |
| import javax.management.NotificationListener; |
| import javax.management.ObjectName; |
| import javax.management.remote.JMXConnector; |
| import javax.management.remote.JMXConnectorFactory; |
| import javax.management.remote.JMXConnectorServer; |
| import javax.management.remote.JMXConnectorServerFactory; |
| import javax.management.remote.JMXServiceURL; |
| |
| /** |
| * |
| */ |
| public class ConcurrentModificationTest { |
| private static final String[] protocols = {"rmi", "iiop", "jmxmp"}; |
| private static int number = 100; |
| |
| private static final MBeanServer mbs = MBeanServerFactory.createMBeanServer(); |
| private static ObjectName delegateName; |
| private static ObjectName[] timerNames = new ObjectName[number]; |
| private static NotificationListener[] listeners = new NotificationListener[number]; |
| |
| private static Throwable uncaughtException = null; |
| |
| public static void main(String[] args) throws Exception { |
| System.out.println(">>> test on Concurrent Modification."); |
| |
| Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() { |
| @Override |
| public void uncaughtException(Thread t, Throwable e) { |
| e.printStackTrace(); |
| if (e instanceof ConcurrentModificationException) { |
| uncaughtException = e; |
| } |
| } |
| }); |
| |
| delegateName = new ObjectName("JMImplementation:type=MBeanServerDelegate"); |
| for (int i=0; i<number; i++) { |
| timerNames[i] = new ObjectName("MBean:name=Timer"+i); |
| listeners[i] = new NotificationListener() { |
| @Override |
| public void handleNotification(Notification notification, Object handback) { |
| // nothing |
| } |
| }; |
| } |
| String errors = ""; |
| |
| for (int i = 0; i < protocols.length; i++) { |
| uncaughtException = null; |
| System.out.println(">>> Test for protocol " + protocols[i]); |
| test(protocols[i]); |
| if (uncaughtException != null) { |
| if ("".equals(errors)) { |
| errors = "Failed to " + protocols[i] + ": "+uncaughtException; |
| } else { |
| errors = errors+", failed to " + protocols[i] + ": "+uncaughtException; |
| } |
| System.out.println(">>> FAILED for protocol " + protocols[i]); |
| } else { |
| System.out.println(">>> PASSED for protocol " + protocols[i]); |
| } |
| } |
| |
| if ("".equals(errors)) { |
| System.out.println("All Passed!"); |
| } else { |
| System.out.println("!!!!!! Failed."); |
| |
| throw new RuntimeException(errors); |
| } |
| } |
| |
| private static void test(String proto) throws Exception { |
| JMXServiceURL u = new JMXServiceURL(proto, null, 0); |
| JMXConnectorServer server; |
| JMXConnector client; |
| |
| try { |
| server = |
| JMXConnectorServerFactory.newJMXConnectorServer(u, null, mbs); |
| server.start(); |
| JMXServiceURL addr = server.getAddress(); |
| client = JMXConnectorFactory.connect(addr, null); |
| } catch (MalformedURLException e) { |
| System.out.println(">>> not support: " + proto); |
| return; |
| } |
| |
| final MBeanServerConnection mserver = client.getMBeanServerConnection(); |
| |
| int count = 0; |
| boolean adding = true; |
| while (uncaughtException == null && count++ < 10) { |
| for (int i = 0; i < number; i++) { |
| listenerOp(mserver, listeners[i], adding); |
| mbeanOp(mserver, timerNames[i], adding); |
| } |
| adding = !adding; |
| } |
| |
| if (uncaughtException != null) { // clean |
| for (int i = 0; i < number; i++) { |
| try { |
| mbeanOp(mserver, timerNames[i], false); |
| } catch (Exception e) { |
| } |
| } |
| } |
| client.close(); |
| server.stop(); |
| } |
| |
| private static void mbeanOp(MBeanServerConnection mserver, ObjectName name, boolean adding) |
| throws Exception { |
| if (adding) { |
| mserver.createMBean("javax.management.timer.Timer", name); |
| } else { |
| mserver.unregisterMBean(name); |
| } |
| } |
| |
| private static void listenerOp(MBeanServerConnection mserver, NotificationListener listener, boolean adding) |
| throws Exception { |
| if (adding) { |
| mserver.addNotificationListener(delegateName, listener, null, null); |
| } else { |
| mserver.removeNotificationListener(delegateName, listener); |
| } |
| } |
| } |