code: public Integer getInt(int index) {
          Number n = (Number) content.get(index);
          if (n == null) {
              return null;
          } else if (n instanceof Integer) {
              return (Integer) n;
          } else {
              return n.intValue(); //autoboxing to Integer
          }
      }
docs: Retrieves the value by the position in the {@link JsonArray} and casts it to {@link Integer}.
  
  Note that if value was stored as another numerical type, some truncation or rounding may occur.
  
  @param index the index of the value.
  @return the value at index.
  @throws IndexOutOfBoundsException if the index is negative or too large.