String numberText = (String) value;
String numberText = ((String) value).trim();  if (numberText.length() == 0) { return null; }
        public Object convert(Class type, Object value) {            String numberText = (String) value;                        try {                return Long.parseLong(numberText.trim(), getBase());            } catch (NumberFormatException e) {                throw new ConversionException("Could not convert input '" + value + "' to a long", e);            }        }