VerboseGC demonstrates the use of the java.lang.management API to 

print the garbage collection statistics and memory usage remotely 

by connecting to a JMX agent with a JMX service URL:

      service:jmx:rmi:///jndi/rmi://<hostName>:<portNum>/jmxrmi

where <hostName> is the hostname and <portNum> is the port number

to which the JMX agent will be connected.

To run the VerboseGC demo

(1) Start the application with the JMX agent - here's an example of 

    how the Java2D is started

    java -Dcom.sun.management.jmxremote.port=1090

         -Dcom.sun.management.jmxremote.ssl=false

         -Dcom.sun.management.jmxremote.authenticate=false

         -jar <JDK_HOME>/demo/jfc/Java2D/Java2Demo.jar

    This instruction uses the Sun's built-in support to enable a JMX agent.

    You can programmatically start a JMX agent with the RMI connector

    using javax.management.remote API.  See the javadoc and examples for

    javax.management.remote API for details.

(2) Run VerboseGC

      java -jar <JDK_HOME>/demo/management/VerboseGC/VerboseGC.jar localhost:1090

These instructions assume that this installation's version of the java

command is in your path.  If it isn't, then you should either

specify the complete path to the java command or update your

PATH environment variable as described in the installation

instructions for the Java(TM) SDK.