Jackson with JSON: Unrecognized field, not marked as ignorable

If you are using the Jackson library to parse JSON in Java and you get the error "Unrecognized field, not marked as ignorable", it means that you are trying to parse a JSON object that has a field that is not recognized by your Java object.

To fix this error, you have two options:

  1. Ignore the unrecognized field: You can use the @JsonIgnoreProperties annotation on your Java object to ignore any unrecognized fields in the JSON object.
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;

@JsonIgnoreProperties(ignoreUnknown = true)
public class MyObject {
  // fields and methods
  1. Map the unrecognized field to a Java field: If you want to parse the unrecognized field and map it to a field in your Java object, you can use the @JsonProperty annotation to specify the name of the field in the JSON object.
import com.fasterxml.jackson.annotation.JsonProperty;

public class MyObject {
  private String unrecognizedField;

  // other fields and methods

I hope this helps! Let me know if you have any other questions.