package example;
 
import java.lang.management.ManagementFactory;
import java.rmi.registry.LocateRegistry;
import java.util.HashMap;
 
import javax.management.MBeanServer;
import javax.management.remote.JMXConnectorServer;
import javax.management.remote.JMXConnectorServerFactory;
import javax.management.remote.JMXServiceURL;
 
public class MyApp {
 
 public static void main(String[] args) throws Exception {
  final int port1 = Integer.parseInt(System.getProperty("example.rmi.agent.port", "3000"));
  System.out.println("Create RMI registry on port "+port1);
  LocateRegistry.createRegistry(port1);
 
  // Retrieve the PlatformMBeanServer.
  System.out.println("Get the platform's MBean server");
  MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
 
  // Environment map.
  System.out.println("Initialize the environment map");
  HashMap env = new HashMap();
 
  // Create an RMI connector server.
  //
  // As specified in the JMXServiceURL the RMIServer stub will
  // be registered in the RMI registry running in the local
  // host on port 3000 with the name "jmxrmi". This is the same
  // name the out-of-the-box management agent uses to register 
  // the RMIServer stub too.
  System.out.println("Create an RMI connector server");
  JMXServiceURL url = new JMXServiceURL("service:jmx:rmi://localhost:" + port1 + "/jndi/rmi://localhost:" + port1 + "/jmxrmi");
  JMXConnectorServer cs = JMXConnectorServerFactory.newJMXConnectorServer(url, env, mbs);
 
  // Start the RMI connector server.
  System.out.println("Start the RMI connector server");
  cs.start();
}

java -Dexample.rmi.agent.port=3010 -classpath . example.MyApp

service:jmx:rmi://localhost:3010/jndi/rmi://localhost:3010/jmxrmi

/*
* CustomAgent.java
*
* Copyright 2007 Sun Microsystems, Inc.  All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the
* following conditions are met:
*
* - Redistributions of source code must retain the above 
*   copyright notice, this list of conditions and the 
*   following disclaimer.
*
* - Redistributions in binary form must reproduce the above 
*   copyright notice, this list of conditions and the following
*   disclaimer in the documentation and/or other materials
*   provided with the distribution.
*
* - Neither the name of Sun Microsystems nor the names of its
*   contributors may be used to endorse or promote products 
*   derived from this software without specific prior written
*   permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
* DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
* POSSIBILITY OF SUCH DAMAGE.
*
* Created on Jul 25, 2007, 11:42:49 AM
*
*/
 
package example.rmi.agent;
 
import java.io.IOException;
import java.lang.management.ManagementFactory;
import java.net.InetAddress;
import java.rmi.registry.LocateRegistry;
import java.util.HashMap;
import javax.management.MBeanServer;
import javax.management.remote.*;
import javax.management.remote.rmi.*;
 
/**
* This CustomAgent will start an RMI COnnector Server using 
* only port "example.rmi.agent.port".
*
* @author dfuchs
*/
public class CustomAgent {
 public static class CleanThread extends Thread {
  private final JMXConnectorServer cs;
  public CleanThread(JMXConnectorServer cs) {
   super("JMX Agent Cleaner");
   this.cs = cs;
   setDaemon(true);
  }
  public void run() {
   boolean loop = true;
   try {
    while (loop) {
     final Thread[] all = new Thread[Thread.activeCount()+100];
     final int count = Thread.enumerate(all);
     loop = false;
     for (int i=0; i < count; i++) {
      final Thread t = all[i];
      // daemon: skip it.
      if (t.isDaemon()) continue;
      // RMI Reaper: skip it.
      if (t.getName().startsWith("RMI Reaper")) continue;
      if (t.getName().startsWith("DestroyJavaVM")) continue;
      // Non daemon, non RMI Reaper: join it, break the for
      // loop, continue in the while loop (loop=true)
      loop = true;
      try {
       System.out.println("Waiting on "+t.getName()+
         " [id="+t.getId()+"]");
       t.join();
      } catch (Exception ex) {
       ex.printStackTrace();
      }
      break;
     }
    }
    // We went through a whole for-loop without finding any 
    // thread to join. We can close cs.
   } catch (Exception ex) {
    ex.printStackTrace();
   } finally {
    try {
     // if we reach here it means the only non-daemon threads
     // that remain are reaper threads - or that we got an
     // unexpected exception/error.
     cs.stop();
    } catch (Exception ex) {
     ex.printStackTrace();
    }
   }
  }
 }
 
 
 private CustomAgent() { }
 
 public static void premain(String agentArgs) 
 throws IOException {
  // Start an RMI registry on port specified by 
  // example.rmi.agent.port (default 3000).
  final int port= Integer.parseInt(System.getProperty("example.rmi.agent.port","3000"));
  System.out.println("Create RMI registry on port "+port);
  LocateRegistry.createRegistry(port);
 
  // Retrieve the PlatformMBeanServer.
  System.out.println("Get the platform's MBean server");
  MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
 
  // Environment map.
  System.out.println("Initialize the environment map");
  HashMap env = new HashMap();
 
  // Create an RMI connector server.
  //
  // As specified in the JMXServiceURL the RMIServer stub will 
  // be registered in the RMI registry running in the local 
  // host on port 3000 with the name "jmxrmi". This is the 
  // same name the out-of-the-box management agent uses to 
  // register the RMIServer stub too.
  //
  // The port specified in "service:jmx:rmi://"+hostname+":"+port
  // is the second port, where RMI connection objects will be 
  // exported. Here we use the same port as that we choose   
  // for the RMI registry. The port for the RMI registry is  
  // specifiedin the second part of the URL, in 
  // "rmi://"+hostname+":"+port
  System.out.println("Create an RMI connector server");
  final String hostname = InetAddress.getLocalHost().getHostName();
  JMXServiceURL url =
   new JMXServiceURL("service:jmx:rmi://"+hostname+":"+(port)+"/jndi/rmi://"+hostname+":"+port+"/jmxrmi");
 
  // Now create the server from the JMXServiceURL
  JMXConnectorServer cs = JMXConnectorServerFactory.newJMXConnectorServer(url, env, mbs);
 
  // Start the RMI connector server.
  System.out.println("Start the RMI connector server on port "+port);
  cs.start();
  System.out.println("Server started at: "+cs.getAddress());
 
  // Start the CleanThread.
  final Thread clean = new CleanThread(cs);
  clean.start();
 }
}

<project basedir="." default="build-agent-jar" name="customAgent">
 
  <property location="src" name="src"></property>
  <property location="build" name="build"></property>
  <property location="dist" name="dist"></property>
  <property name="dist.agent.jar" value="customAgent.jar"></property>
 
  <target name="init">
    <mkdir dir="${build}"></mkdir>
    <mkdir dir="${dist}"></mkdir>
  </target>
 
  <target description="clean" name="clean">
    <delete dir="${build}"></delete>
    <delete dir="${dist}"></delete>
  </target>
 
  <target depends="init" name="compile">
    <javac destdir="${build}" srcdir="${src}"></javac>
  </target>
       
  <target depends="clean,compile" name="build-agent-jar">
    <jar basedir="${build}" destfile="${dist}/${dist.agent.jar}">
      <manifest>
        <attribute name="Premain-Class" value="example.rmi.agent.CustomAgent"></attribute>
      </manifest>
    </jar>
  </target>
</project>

java -Dexample.rmi.agent.port=3010 -javaagent:customAgent.jar -classpath customAgent.jar example.MyApp2

export JAVA_OPTS="$JAVA_OPTS -javaagent:${CATALINA_HOME}/lib/customAgent.jar -Djava.rmi.server.hostname=192.168.1.105"