SSL-Jboss with no certificate

Hi,

I was wondering if it is possibly to have a SSL enabled JBoss for which the client does not need a certificate ?

The idea is basically to have a secure transfer of some data with a non-browser client and I want to avoid that the user has have a certificate he has to add somewhere depending on the client ?

So it is possible to set up a SSL connection in that way (either in JBoss directly or vie mod_jk in the apache web server), that the client does not need a certificate ?

Thanks