Jackson Deserialization: unrecognized field

Question

From the tutorial I had the impression that this should work (simplified example):

public class Foo {
    private String bar;
    public String getBar() {
              


        

Answer 1

You can configure ObjectMapper to ignore fields it doesn't find in your class with

ObjectMapper mapper = new ObjectMapper();
mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);

If not configured this way, it will throw exceptions while parsing if it finds a field it does not recognize on the class type you specified.