_[Original issue](https://code.google.com/p/guava-libraries/issues/detail?id=1259) created by **yurachud** on 2013-01-16 at 04:20 PM_

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If we pass null to Ints.tryParse it throws NullPointerException.
Method uses AndroidInteger.tryParse(), but the first line there is checkNotNull() method.

}
    @Override
    protected String doBackward(Double value) {
      return value.toString();
    }
    @Override
    public String toString() {
      return "Doubles.stringConverter()";
    }
    private Object readResolve() {
      return INSTANCE;
    }
    private static final long serialVersionUID = 1;
  }
  /**
   * Returns a serializable converter object that converts between strings and doubles using {@link
   * Double#valueOf} and {@link Double#toString()}.
   *
   * @since 16.0
   */
  @Beta
  public static Converter<String, Double> stringConverter() {
    return DoubleConverter.INSTANCE;
  }
  /**
   * Returns an array containing the same values as {@code array}, but guaranteed to be of a
   * specified minimum length. If {@code array} already has a length of at least {@code minLength},
   * it is returned directly. Otherwise, a new array of size {@code minLength + padding} is
   * returned, containing the values of {@code array}, and zeroes in the remaining places.
   *