In my case JsonDeserialize works well in TournamentRequestDTO and PrizeInfo, but not working inside PrizeGroup. Not sure where problem is and what I am doing wrong. I also tried to make custom setters inside these classes – same issue, setters not working in PrizeGroup, but works well in TournamentRequestDTO and PrizeInfo.

@Getter
@Setter
@ToString(callSuper = true)
@AllArgsConstructor
@NoArgsConstructor
public class TournamentRequestDTO {

    @JsonProperty("name")
    private String name;

    @JsonProperty("gameplayMode")
    @JsonDeserialize(using = EnumDeserializer.class)
    private TournamentGameplayMode gameplayMode;

    @JsonProperty("prizesInfo")
    private @Valid PrizeInfo prizeInfo;
    
    ...

    @Getter
    @Setter
    @AllArgsConstructor
    public static class PrizeInfo {

        @JsonProperty("currency")
        @JsonDeserialize(using = EnumDeserializer.class)
        private TournamentCurrency currency;

        @JsonProperty("prizes")
        private List<@Valid PrizeGroup> prizes;
        
        ...

        @Getter
        @Setter
        @AllArgsConstructor
        public static class PrizeGroup {
            @JsonProperty("type")
            @JsonDeserialize(using = PrizeTypeEnumDeserializer.class)
            private PrizeType type;

            @JsonProperty("name")
            private String name;
            
            ...
        }
    }
}

I tried to modify deserializators, I tried to write setters inside PrizeGroup, I tried to use one prize instead of list – breakpoints not triggered, Jackson using default inner methods inside PrizeGroup an I can overwrite them to use my custom classes and methods.