0N/A/*
2362N/A * Copyright (c) 2004, 2005, Oracle and/or its affiliates. All rights reserved.
0N/A *
0N/A * Redistribution and use in source and binary forms, with or without
0N/A * modification, are permitted provided that the following conditions
0N/A * are met:
0N/A *
0N/A * - Redistributions of source code must retain the above copyright
0N/A * notice, this list of conditions and the following disclaimer.
0N/A *
0N/A * - Redistributions in binary form must reproduce the above copyright
0N/A * notice, this list of conditions and the following disclaimer in the
0N/A * documentation and/or other materials provided with the distribution.
0N/A *
2362N/A * - Neither the name of Oracle nor the names of its
0N/A * contributors may be used to endorse or promote products derived
0N/A * from this software without specific prior written permission.
0N/A *
0N/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
0N/A * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
0N/A * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
0N/A * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
0N/A * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
0N/A * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
0N/A * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
0N/A * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
0N/A * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
0N/A * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
0N/A * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
0N/A */
0N/A
0N/A/*
4378N/A * This source code is provided to illustrate the usage of a given feature
4378N/A * or technique and has been deliberately simplified. Additional steps
4378N/A * required for a production-quality application, such as security checks,
4378N/A * input validation and proper error handling, might not be present in
4378N/A * this sample code.
4378N/A */
4378N/A
4378N/A
4378N/A/*
0N/A */
0N/A
0N/Aimport javax.management.*;
0N/Aimport javax.management.remote.*;
0N/Aimport java.io.IOException;
0N/Aimport java.net.MalformedURLException;
0N/A
0N/A/**
0N/A * This FullThreadDump class demonstrates the capability to get
0N/A * a full thread dump and also detect deadlock remotely.
0N/A */
0N/Apublic class FullThreadDump {
0N/A private MBeanServerConnection server;
0N/A private JMXConnector jmxc;
0N/A public FullThreadDump(String hostname, int port) {
0N/A System.out.println("Connecting to " + hostname + ":" + port);
0N/A
0N/A // Create an RMI connector client and connect it to
0N/A // the RMI connector server
0N/A String urlPath = "/jndi/rmi://" + hostname + ":" + port + "/jmxrmi";
0N/A connect(urlPath);
0N/A }
0N/A
0N/A public void dump() {
0N/A try {
0N/A ThreadMonitor monitor = new ThreadMonitor(server);
0N/A monitor.threadDump();
0N/A if (!monitor.findDeadlock()) {
0N/A System.out.println("No deadlock found.");
0N/A }
0N/A } catch (IOException e) {
0N/A System.err.println("\nCommunication error: " + e.getMessage());
0N/A System.exit(1);
0N/A }
0N/A }
0N/A
0N/A /**
0N/A * Connect to a JMX agent of a given URL.
0N/A */
0N/A private void connect(String urlPath) {
0N/A try {
0N/A JMXServiceURL url = new JMXServiceURL("rmi", "", 0, urlPath);
0N/A this.jmxc = JMXConnectorFactory.connect(url);
0N/A this.server = jmxc.getMBeanServerConnection();
0N/A } catch (MalformedURLException e) {
0N/A // should not reach here
0N/A } catch (IOException e) {
0N/A System.err.println("\nCommunication error: " + e.getMessage());
0N/A System.exit(1);
0N/A }
0N/A }
0N/A
0N/A public static void main(String[] args) {
0N/A if (args.length != 1) {
0N/A usage();
0N/A }
0N/A
0N/A String[] arg2 = args[0].split(":");
0N/A if (arg2.length != 2) {
0N/A usage();
0N/A }
0N/A String hostname = arg2[0];
0N/A int port = -1;
0N/A try {
0N/A port = Integer.parseInt(arg2[1]);
0N/A } catch (NumberFormatException x) {
0N/A usage();
0N/A }
0N/A if (port < 0) {
0N/A usage();
0N/A }
0N/A
0N/A // get full thread dump and perform deadlock detection
0N/A FullThreadDump ftd = new FullThreadDump(hostname, port);
0N/A ftd.dump();
0N/A }
0N/A
0N/A private static void usage() {
0N/A System.out.println("Usage: java FullThreadDump <hostname>:<port>");
0N/A }
0N/A}