A little piece of code that needs to return to the wild, Pvk.java.
This is a partial rewrite of PVK by Stephen Kenson.
This version accepts a PKCS#8 DER private key input, since the DER file I had translated via an older version of OpenSSL is no longer working via the latest (debian) version.
Thanks to Stephen Henson and the folks at Sun Microsystems for plenty of great open source code to use in solving this problem.
If (when) I make updates, they'll be copied here.