My underlying object which I am exposing via graphql-java has identifier of type Long.
The object is loaded correctly but when the results are returned, id is omitted.
This happens because of the following lines in Scalars.java:171-178

if (input instanceof String) {
   return input;
}
if (input instanceof Integer) {
   return String.valueOf(input);
}

return null;

Would it not make sense to add handling for Long type here? Thank you!