Setup basic authentication on mock services

Hello,

here is my situation.

I've got a java cleint application using axis2 to send soap requests to my mock service defined in the soap ui tool.
Everything is working fine : my client send the reqyuest and get the right soap response in return.

But now i need to implement basic http authentication. I've done it in my java client (a user name and a password) but a don't know how to secure my mock web services in soapUI.

Can someone encoubtered the same problem, what is the steps to realize this operation ?

Thank you very much for your help