Hi,
How did you run the client?
Assuming you're using J2EE-RI.
When you use deploytool to create the jar, war or ear,
you should be able to create the client jar.
(but you need to specifically check the option)
Then, you'd use this client.jar to run your client.
e.g.
java -classpath MyAppClient.jar:%CLASSPATH% MyAppClient
Cheers.
Han Ming