As addition to other solutions, @JsonProperty annotation is absolutely important if you utilize the @JsonCreator annotation in courses which would not have a no-arg constructor. @Kent points out that Properties will not be needed to encapsulate fields, they may do a calculation on other fields, or serve other functions. OldCurmudgeonOldCurmudgeon https://dlfsector77.blogspot.com/2025/07/jms-low-rise-floors-manesar-green.html