[Red5] An applet that is using RemotingClient class

[Fractalz]

Hi Everyone,
I am using an applet that is using RemotingClient class to communicate
with Red5, and it does it with no problem.
My question is that I need to find out all the dependent classes to
RemotingClient so I can put them in the jar file and sign it.

Is there any way to find out all the dependent classes that need to be
in jar file?

What I have been doing is that I included some classes that have been
imported in RemotingClient class
 but still I get error in running applet for lack of other classes
that are imported in the classes which are imported in RemotingClient.

I tried to make it as clear as possible, Sorry if it's still confusing.

Cheers
Shawn