Sun BrokerJMS Sample Problems

On webMethods 6.01, I am trying to run the Sun Sample (SenderToQueue) shipped with webMethods (/<webmethods>/Broker/samples/brokerjms/sun/samples). I was able to bind and create the queues, thus the broker is the provider.

However, when I try to run SenderToQueue, I get the following error:

C:\Projects\Descartes\JMS\classes>java SenderToQueue SQ
Queue name is SQ
Jndi looking up: QueueConnectionFactory
JNDI lookup failed: javax.naming.CommunicationException: Can’t find SerialContex
tProvider
Connection problem: javax.naming.CommunicationException: Can’t find SerialContex
tProvider

Can anyone shed some light into this issue?

Boon