Sun GlassFish Enterprise Server 2.1 Troubleshooting Guide

Can I Use a PKCS12 Certificate for My Client Certificate?

Is there a way to use my PKCS12 certificate for an SSL the application client or standalone client during mutual authentication?

No. You cannot use a PKCS12 certificate directly, but you can write your own client using the JSSE, which supports storetype=PKCS12 (read only, no write to keystore).