Review

class SecureMessagingWrapper {
   /**
    * Unwraps the apdu buffer <code>rapdu</code> of a response apdu.
    *
    * @param rapdu buffer containing the response apdu.
    * @param len length of the actual response apdu.
    *
    * @return a new byte array containing the unwrapped buffer.
    */
   public byte[] unwrap(byte[] rapdu, int len) {
      try {
         return unwrapResponseAPDU(rapdu, len);
      } catch (GeneralSecurityException gse) {
         gse.printStackTrace();
         throw new IllegalStateException(gse.toString());
      } catch (IOException ioe) {
         ioe.printStackTrace();
         throw new IllegalStateException(ioe.toString());
      }
   }

}