code: public static DERUTCTime getInstance(
          Object  obj)
      {
          if (obj == null || obj instanceof DERUTCTime)
          {
              return (DERUTCTime)obj;
          }
  
          if (obj instanceof ASN1OctetString)
          {
              return new DERUTCTime(((ASN1OctetString)obj).getOctets());
          }
  
          throw new IllegalArgumentException("illegal object in getInstance: " + obj.getClass().getName());
      }
docs: return an UTC Time from the passed in object.
  
  @exception IllegalArgumentException if the object cannot be converted.