driver-core/src/main/com/mongodb/client/model/Sorts.java
public static Bson descending(final List<String> fieldNames) {
        notNull("fieldNames", fieldNames);
        return orderBy(fieldNames, new BsonInt32(-1));
    }
public static Bson descending(final List<String> fieldNames) {
        notNull("fieldNames", fieldNames);
        return orderBy(fieldNames, new BsonInt32(-1));
    }
Create a sort specification for an ascending sort on the given fields.

@param fieldNames the field names, which must contain at least one
@return the sort specification
@mongodb.driver.manual reference/operator/meta/orderby Sort