Java example working with tools

Mjcon.java

package dev.sysadmin;
import java.lang.management.*;
import java.io.*;
import java.util.*;
import javax.management.*;
import javax.management.remote.*;
import com.sun.tools.attach.*;

import javax.management.openmbean.CompositeData;
public class Mjcon {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		 if (args.length != 1) {
	            System.err.println("Please provide process id");
	            System.exit(-1);
	        }
		
		try {
			
		        VirtualMachine vm = VirtualMachine.attach(args[0]);
			
			
			
		 //VirtualMachine vm = VirtualMachine.attach("18237");
	        String connectorAddr = vm.getAgentProperties().getProperty(
	                                   "com.sun.management.jmxremote.localConnectorAddress");
	        if (connectorAddr == null) {
	            String agent = vm.getSystemProperties().getProperty(
	                               "java.home")+File.separator+"lib"+File.separator+
	                           "management-agent.jar";
	            vm.loadAgent(agent);
	            connectorAddr = vm.getAgentProperties().getProperty(
	                                "com.sun.management.jmxremote.localConnectorAddress");
	        }
	        JMXServiceURL serviceURL = new JMXServiceURL(connectorAddr);
	        JMXConnector connector = JMXConnectorFactory.connect(serviceURL);
	        MBeanServerConnection mbsc = connector.getMBeanServerConnection();
		
			
			
	


		ObjectName simple = new ObjectName("com.example:type=Hello");
		String simpleClass = "com.example.HelloMBean";
		System.out.println("Here: "+mbsc.getAttribute(simple, "Name"));
		mbsc.invoke(simple, "sayHello", null, null);
		
		
		
		
		
		} catch (Exception e){
			System.out.println(e.toString());
			
		}

		
		System.out.println("test");
	}

}