How to sign a custom JCE security provider

Question

Sun\'s PKCS11 JCE security provider is lacking some functionality we need.
So I wrote an enhanced version of it using the original sources.

Unfortunately the JC

Answer 1

Only for extra info, i got this same exception when i build a JAR (Eclipse Juno) with the option "Extract required libraries into generated JAR" instead the correct "Package required libraries into generated JAR"