How to deserialize a blank JSON string value to null for java.lang.String?

Question

I am trying a simple JSON to de-serialize in to java object. I am however, getting empty String values for java.lang.String property values. In rest of

Answer 1

it is possible to use JsonCreator annotation. It worked for me

public class Foo {
private String field;

 @JsonCreator
 public Foo(
   @JsonProrerty("field") String field) {
     this.field = StringUtils.EMPTY.equals(field) ? null : field ;
}
}