//Ignore these. It is likely they related to mapping validation that is unimportant for queries (the query will
// fail/return-empty anyway)
LOG.debug("Error during mapping of filter criteria: ", e);
}
Object mappedValue = mapper.toMongoObject(mf, mc, value);
final Class<?> type = (mappedValue == null) ? null : mappedValue.getClass();
//convert single values into lists for $in/$nin
if (type != null && (op == FilterOperator.IN || op == FilterOperator.NOT_IN)