Fail on unknown property

[Simon Lodal]

If the input json data has unknown fields I need to fail or handle it somehow. Is there any way to do that?

Is it true that gson is by design a sloppy parser?

[Inderjeet Singh]

Gson by design is a lenient parser. If you need to fail on unknown fields, you need to write a custom JsonDeserializer or TypeAdapter for each class where you need strict parsing.

Alternatively, you can write a TypeAdapterFactory that does this for a set of classes that you care about.

HTH

Inder

[fw...@fwber.com]

I also need a way to log unknown (renamed) fields instead of silently discarding them.

Is there an example anywhere of how to do this?