public void setContentType(String contentType) throws ParseException { if (contentType == null) throw new NullPointerException("null arg");
public void setContentType(String contentType, String contentSubType) {
	public void setContentType(String contentType) throws ParseException {		if (contentType == null)			throw new NullPointerException("null arg");		if (mediaRange == null)			mediaRange = new MediaRange();		mediaRange.setType(contentType);	}