code: @Pure
  	public static double toESRI_y(double y) throws IOException {
  		if (Double.isInfinite(y) || Double.isNaN(y)) {
  			throw new InvalidNumericValueException(y);
  		}
  		return y;
  	}
docs: Translate a y-coordinate from Java standard
  to ESRI standard.
  
  @param y is the Java y-coordinate
  @return the ESRI y-coordinate
  @throws IOException when invalid conversion.