@Override
    public int hashCode() {
        return Objects.hash(schema, Arrays.deepHashCode(values));
    }
Validates that this struct has filled in all the necessary data with valid values. For required fields
without defaults, this validates that a value has been set and has matching types/schemas. If any validation
fails, throws a {@link DataException}.
connect/api/src/main/java/org/apache/kafka/connect/data/Struct.java