I'm getting errors like below on all of my session and entity beans, yet, my beans still run fine and I'm seeing no problems besides this output.

--- snip ---
[ERROR,ContainerFactory]
Bean : Account
Method : public abstract boolean addAccount(AccountInfo) throws RemoteException
Section: 9.2.7
Warning: The method arguments in the remote interface must be of valid types for RMI/IIOP.
--- end ---

The arguments in this interface are of valid types AFAIK, meaning ... AccountInfo is implements Serializable.

Any help much appreciated.