| /* |
| * Copyright (c) 2004, 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 5039210 |
| * @summary test on a client notification deadlock. |
| * @author Shanliang JIANG |
| * @modules java.management |
| * @run clean DeadLockTest |
| * @run build DeadLockTest |
| * @run main DeadLockTest |
| */ |
| |
| import java.net.MalformedURLException; |
| import java.io.IOException; |
| import java.util.HashMap; |
| |
| import javax.management.*; |
| import javax.management.remote.*; |
| |
| public class DeadLockTest { |
| private static final String[] protocols = {"rmi", "iiop", "jmxmp"}; |
| private static final MBeanServer mbs = MBeanServerFactory.createMBeanServer(); |
| |
| public static void main(String[] args) { |
| System.out.println(">>> test on a client notification deadlock."); |
| |
| boolean ok = true; |
| for (int i = 0; i < protocols.length; i++) { |
| try { |
| test(protocols[i]); |
| } catch (Exception e) { |
| System.out.println(">>> Test failed for " + protocols[i]); |
| e.printStackTrace(System.out); |
| } |
| } |
| |
| System.out.println(">>> Test passed"); |
| } |
| |
| private static void test(String proto) |
| throws Exception { |
| System.out.println(">>> Test for protocol " + proto); |
| |
| JMXServiceURL u = null; |
| JMXConnectorServer server = null; |
| |
| HashMap env = new HashMap(2); |
| // server will close a client connection after 1 second |
| env.put("jmx.remote.x.server.connection.timeout", "1000"); |
| |
| // disable the client ping |
| env.put("jmx.remote.x.client.connection.check.period", "0"); |
| |
| try { |
| u = new JMXServiceURL(proto, null, 0); |
| server = JMXConnectorServerFactory.newJMXConnectorServer(u, env, mbs); |
| } catch (MalformedURLException e) { |
| System.out.println(">>> Skipping unsupported URL " + proto); |
| } |
| |
| server.start(); |
| |
| JMXServiceURL addr = server.getAddress(); |
| |
| long st = 2000; |
| MyListener myListener; |
| |
| // a cycle to make sure that we test the blocking problem. |
| do { |
| JMXConnector client = JMXConnectorFactory.connect(addr, env); |
| MBeanServerConnection conn = client.getMBeanServerConnection(); |
| myListener = new MyListener(conn); |
| client.addConnectionNotificationListener(myListener, null, null); |
| |
| // wait the server to close the client connection |
| Thread.sleep(st); |
| |
| // makes the listener to do a remote request via the connection |
| // which should be closed by the server. |
| conn.getDefaultDomain(); |
| |
| // allow the listner to have time to work |
| Thread.sleep(100); |
| |
| // get a closed notif, should no block. |
| client.close(); |
| Thread.sleep(100); |
| |
| st += 2000; |
| |
| } while(!myListener.isDone()); |
| |
| server.stop(); |
| } |
| |
| private static class MyListener implements NotificationListener { |
| public MyListener(MBeanServerConnection conn) { |
| this.conn = conn; |
| } |
| |
| public void handleNotification(Notification n, Object h) { |
| if (n instanceof JMXConnectionNotification) { |
| JMXConnectionNotification jcn = (JMXConnectionNotification)n; |
| final String type = jcn.getType(); |
| System.out.println(">>> The listener receives notif with the type:"+type); |
| |
| if (JMXConnectionNotification.CLOSED.equals(type) || |
| JMXConnectionNotification.FAILED.equals(type)) { |
| |
| synchronized(this) { |
| done = false; |
| } |
| |
| try { |
| conn.getDefaultDomain(); |
| } catch (IOException ioe) { |
| // Greate ! |
| } |
| |
| synchronized(this) { |
| done = true; |
| } |
| |
| System.out.println(">>> The listener is not blocked!"); |
| } |
| } |
| } |
| |
| public boolean isDone() { |
| synchronized(this) { |
| return done; |
| } |
| } |
| |
| private boolean done = false; |
| private MBeanServerConnection conn; |
| } |
| } |