@Override
    public String toString() {
        return new StringJoiner(", ", ValidationError.class.getSimpleName() + "[", "]")
                .add("path='" + path + "'")
                .add("message='" + message + "'")
                .add("invalidValue='" + invalidValue + "'")
                .toString();
    }
Captures a validation error that can be returned in {@link ErrorResponse}.
common/src/main/java/com/netflix/conductor/common/validation/ValidationError.java