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This description assumes your application is running the on same machine as JConsole and application JVM matches the JConsole and you are running with an Oracle JVM (it will work on IBM, but you'll need to do a little more work).

1. Start an OpenJPA application with the following configuration properties set:

   Code Block
   xml xml
   <property name="openjpa.DataCache" value="true"/> <property name="openjpa.Instrumentation" value="jmx(Instrument='DataCache')"/>

2. Launch JConsole and provide the openjpa-tools.jar via the -pluginpath switch.

   Code Block
   > [java_home]\bin\jconsole -pluginpath [path_to_openjpa-tools.jar]

3. Select the PID which corresponds to your application.
   

4. Wiki Markup
   If all goes well, at this point you should see a tab labeled DataCache-\[pu_name\]-\[n\] !screen.jpg|thumbnail,border=1!

JEE Usage

// In progress http://wasdynacache.blogspot.com/2010/03/getting-jconsole-working-with-websphere.html^{Image Added}