@Override
	public String valueToString(Object value) throws ParseException {
		String valueString = super.valueToString(value);
		if ("".equals(valueString)) {
			return valueString;
		}
		return Long.toHexString(Long.valueOf(valueString));
	}
Overridden to translate the internal value to a hex representation.
Ghidra/Framework/Docking/src/main/java/docking/widgets/numberformat/HexIntegerFormatter.java