Java EE (Java Enterprise Edition) General Discussion

Hi, all. I'm developing a multiuser web service client.

To implement authentication/authorization, I've been taking a look at the new WS-Security support in JWSDP 1.4. It looks good, but I'm unable to find a way to specify username/password combinations for the UsernameToken element at runtime.
I've only seen them provided at build-time to the wscompile ant target. This doesn't appear suitable for my application, which users would log into at runtime.

Is anyone able to confirm or refute this? Any alternative recommendations are also welcomed.

Thanks.
Justin