code: public Type getTypeOfArrayItems()
        throws DataConversionException {
      JsonSchema arrayValues = getItemsWithinDataType();
      if (arrayValues == null) {
        throw new DataConversionException("Array types only allow values as primitive, null or JsonObject");
      }
      return arrayValues.getType();
    }
docs: Fetches the nested or primitive array items type from schema.
  @return
  @throws DataConversionException