ObjectMapper can't deserialize without default constructor after upgrade to Spring Boot 2

Question

I have following DTOs:

@Value
public class PracticeResults {
    @NotNull
    Map wordAnswers;
}

@Value
public class ProfileMetaDto {

         


        

Answer 1

I faced this problem, but my solution did not involve adding this: (mode = JsonCreator.Mode.PROPERTIES)

What really solved my problem was the @JsonProperty within the Constructor.

My final result was this:

@Value
public class ServerTimeResponse {

    long serverTime;

    @JsonCreator
    public ServerTimeResponse(@JsonProperty("serverTime") long serverTime) {
        this.serverTime = serverTime;
    }

}