How to make deserialization fail with Jackson when JSON is incomplete?

Asked Jul 18 '22 at 17:24

Active Jul 18 '22 at 17:24

Viewed 22 times

I have a simple JSON file and a corresponding Java class. I want that the deserialization process fails if the JSON file misses one of the properties from the Java class or a property is null. I tried several things e.g. @JsonIncludeProperties or Jacksons deserialization features FAIL_ON_MISSING_CREATOR_PROPERTIES, FAIL_ON_NULL_CREATOR_PROPERTIES. No luck. Also I could not find any help form the Jackson documentation. I almost think that isn't possible at all.

JSON file:

{ 
  "propA": "foo",
  "propB": "bar"
}

Java class:

public class Props {
  public String propA;    
  public String propB;
}

I skiped the boilerplait code like getter or setter to make the example as small as possible.

asked Jul 18 '22 at 17:24

Easterwood

The Answer https://stackoverflow.com/a/13768738/6044791 doesn't solve my question but explains why I could not find any solution. – Easterwood Jul 18 '22 at 17:33
Look at the other answers too, there are some solutions although they do come with some caveats. – Voo Jul 18 '22 at 17:54
1

Thx I already considered it and implemented it with Bean Validation. – Easterwood Jul 18 '22 at 18:12
Should I delete my question? – Easterwood Jul 18 '22 at 18:12
1

No it's perfectly fine and will help people who search for similar keywords instead of "required". – Voo Jul 18 '22 at 18:23

How to make deserialization fail with Jackson when JSON is incomplete?

0 Answers0