How to generate a self-signed certificate using only JDK supported classes?

Question

I have a program in Java which currently uses private JDK classes (CertAndKeyGen and X500Name) to generate self-signed X.509 certificates. There are to

Answer 1

Ok, then I guess it does not exist.

The RFE I submitted to the JDK has been accepted and there is now an official bug for it: http://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8165481