As Addition to other answers, @JsonProperty annotation is really essential if you employ the @JsonCreator annotation in classes which would not have a no-arg constructor. So your DataContext for "video_length_textbox" is set to by itself, along with your IncrementingTextBox course doesn't have a public property named ConfigurationModel Granted, it can https://share.evernote.com/note/f404b8b9-8407-e9b8-74a2-7bb0637d59f3