title: Java Sign jars with server certificate
body: <p>Is it possible to use a server certificate to sign a java web start app? What I want to know is if will it work. I have a trusted certificate for my server, and I would like to reuse the same certificate to sign an app. </p>
  
  <p>Right now, I have this warning:</p>
  
  <blockquote>
    <p>This jar contains entries whose signer certificate's ExtendedKeyUsage
    extension doesn't allow code signing. This jar contains entries whose
    signer certificate's NetscapeCertType extension doesn't allow code
    signing.</p>
  </blockquote>
  
  <p>Will I be able to launch my app without the warning that the certificate is not trusted?</p>