Class not found with jms cache sync

hi. when i try to use the remote command manager in my live environment only i get a class not found exception for my initial context factory. using a debugger i discovered this is actually hiding a linkage error. so i confirmed that my resin and java versions and all my jars are the same between live and stage, where this works no problem. but still doesn't work in production. any ideas what else i should look at? here's a stack trace
Exception [TOPLINK-22101] (Oracle TopLink - 10g Release 3 (10.1.3.1.0) (Build 061004)): oracle.toplink.exceptions.RemoteCommandManagerException
Exception Description: Could not obtain JNDI context with properties {java.naming.provider.url=tcp://10.10.6.73:3035, java.naming.factory.initial=org.exolab.jms.jndi.InitialContextFactory , java.naming.security.principal=tcp://10.10.6.73:3035, dedicated.connection=true, java.naming.security.credentials=tcp://10.10.6.73:3035}
Internal Exception: javax.naming.NoInitialContextException: Cannot instantiate class: org.exolab.jms.jndi.InitialContextFactory [Root exception is java.lang.ClassNotFoundException: org.exolab.jms.jndi.InitialContextFactory ]
at oracle.toplink.exceptions.RemoteCommandManagerException.errorObtainingContext(RemoteCommandManagerException.java:42)
at oracle.toplink.remotecommand.TransportManager.getContext(TransportManager.java:194)
at oracle.toplink.remotecommand.TransportManager.getRemoteHostContext(TransportManager.java:385)
at oracle.toplink.remotecommand.jms.JMSTopicTransportManager.getRemoteHostContext(JMSTopicTransportManager.java:270)
at oracle.toplink.remotecommand.jms.JMSTopicTransportManager.getTopicConnectionFactory(JMSTopicTransportManager.java:204)
at oracle.toplink.remotecommand.jms.JMSTopicTransportManager.createJMSTopicRemoteConnection(JMSTopicTransportManager.java:84)
at oracle.toplink.remotecommand.jms.JMSTopicTransportManager.createLocalConnection(JMSTopicTransportManager.java:106)
at oracle.toplink.remotecommand.jms.JMSTopicDiscoveryManager.startDiscovery(JMSTopicDiscoveryManager.java:44)
at oracle.toplink.remotecommand.RemoteCommandManager.initialize(RemoteCommandManager.java:132)
at oracle.toplink.publicinterface.DatabaseSession.login(DatabaseSession.java:509)

I would guess the problem is related to the application's class-loader visibility. Verify that your application can access the class org.exolab.jms.jndi.InitialContextFactory forio to launching the TopLink session. If it cannot then you may need to address the container's access to this library.
Doug

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