static void checkEC2SecurityGroup(EC2SecurityGroup security) {
   checkNotNull(
       security.getId(),
       "Id can be null for a SecurityGroup, but its Optional Wrapper cannot: %s",
       security);
   checkNotNull(security.getStatus(), "Status cannot be null for a SecurityGroup: %s", security);
   checkNotNull(security.getName(), "Name cannot be null for a SecurityGroup: %s", security);
   checkNotNull(security.getOwnerId(), "Name cannot be null for a SecurityGroup: %s", security);
 }