Signing JAR Files for webstart

Forgive my cross posting, but I believe I should not have posted this to Tool Discussion earlier. My Basic Problem is that I can’t sign a jar so that my webstarted app will have all-permissions , I know I have to generate a key with keytool then sign the jar with that key, but I must be missing something. When I try to sign the jar I get the error

mumble is not a private key

Can somebody please walk me through the necessary steps, I’m really ignorant in this area… Well this area among many :wink:

I know there may be some minor errors, but have you been through this:

http://grexengine.com/sections/externalgames/articles/Kevin%20Glass-A%20Walkthrough%20with%20WebStart-JNLP-1.html

Kev

Thanks Kev,
I’ll check it out.